Does Tech Fall Harder in Bear Markets? US Tech vs the Market, 1971–2026

Across the six tech bear markets since 1971, the US technology sector fell harder than the overall US market in 3 of 6 cases (1990, 2000–02, 2021–22) and about as much in the other three (1973–74, 1987, 2007–09). Measured with sector and market total returns from the Kenneth R. French Data Library, not with Nasdaq or S&P 500 index levels.

Two-panel chart, February 1971 to May 2026. Upper panel: ratio of the total-return index of the US technology sector (HiTec portfolio, Kenneth R. French Data Library) to that of the US stock market, February 1971 = 100; it peaks at 149.1 in February 2000, falls to 59.3 in July 2006 and stands at 129.5 in May 2026. Lower panel: ex-post real 10-year Treasury yield (10-year yield minus 12-month CPI inflation), 0.3% in May 2026.

A 664-month dataset tracking the US technology sector, the US stock market and real interest rates from February 1971 to May 2026, documenting six tech bear markets and the link between tech’s relative performance and real rates.

Eco3min Research · Updated: (first published May 2026) · Frequency: Monthly observations · Coverage: Feb 1971 – May 2026

Revised on 30 September 2026: figures recomputed on Kenneth R. French data (US tech portfolio vs US market, total return) instead of Nasdaq Composite and S&P 500 price data; several conclusions changed.

Does the Nasdaq fall harder than the S&P 500 in bear markets? This study answers with the US technology sector (Kenneth R. French’s HiTec portfolio, a stand-in for the Nasdaq’s technology core, not the Nasdaq itself) against the whole US stock market, both in total return. Tech fell harder in 3 of the 6 tech bear markets since 1971 (1990, 2000–02, 2021–22) and slightly less than the market in the other three (1973–74, 1987, 2007–09). Across all six episodes the average drawdown ratio is 1.22×, with a range from 0.95× (1973–74) to 1.73× (2000–02). Over the same 55-year period tech returned about 1.29× as much as the market, the whole relative gain coming after 1995, and the tech/market ratio shows only a weak link with real interest rates in either era.

TL;DR

Across the six tech bear markets since 1971, the US technology sector fell harder than the US market in 3 of 6 cases (1990, 2000–02, 2021–22) and about as much in 1973–74, 1987 and 2007–09. Mean ratio across all six: 1.22×. The often-cited duration framing (that tech behaves like a long-duration asset penalised by rising real rates) finds little support in the tech/market ratio: its correlation with the real 10-year yield is −0.27 in 1972–1995 and −0.08 in 1996–2026. Note: this dataset measures month-end peak-to-trough drawdowns in total return for a technology sector portfolio and for the whole market (Kenneth R. French Data Library), not Nasdaq or S&P 500 index levels; it does not control for composition changes or beta differentials (see Methodology and Limitations).

Latest Observation: May 2026
+47,238%
US tech, total return since Feb 1971
+36,464%
US market, total return since Feb 1971
129
Tech/market ratio (Feb 1971 = 100)
0.3%
Real 10-year yield (ex-post)

Executive Summary
  • Across the six tech bear markets since 1971, the US technology sector fell harder than the US market in 3 of 6 cases (1990, 2000–02, 2021–22); in 1973–74, 1987 and 2007–09 it fell slightly less (by 0.5 to 2.4 points). Mean ratio: 1.22× across all six; 1.46× across the three where tech fell harder. Range: 0.95× (1973–74) to 1.73× (2000–02).
  • The relationship between the tech/market ratio and real interest rates is weak in both eras: the correlation with the ex-post real 10-year yield is −0.27 in 1972–1995 and −0.08 in 1996–2026. The sign reversal around 1995 reported by earlier versions of this study, on index price data, does not appear in total-return sector data.
  • The cumulative tech total return from Feb 1971 to May 2026 is +47,238% versus +36,464% for the US market, a multiple of 1.29×. The whole relative gain came after 1995 (the ratio fell to 0.82× before 1995 and rose 1.59× since), and none of it in months that began with a negative real yield (ratio ×0.90 over 124 months).
  • The deepest tech drawdown in the dataset is the 2000–02 dot-com decline of −77.9% (vs the market’s −44.9%, ratio 1.73×); the most recent is the 2021–22 decline of −33.1% (vs the market’s −24.8%, ratio 1.33×).
  • The 2015–18 Fed tightening cycle passed without a tech bear market: the tech portfolio’s largest decline over that cycle was −16.1% (month-end, total return), below the 20% threshold, against −14.5% for the market. It is not the only such cycle: 1994–95 (tech −6.1%, market −7.6%) and 2004–06 (tech −11.3%, market −4.7%) also passed without one.
  • Dataset coverage: 664 monthly observations spanning February 1971 to May 2026, with derived columns for bear-market identification, tightening-cycle tagging, real-rate regime classification, and 12-month forward returns. Sector and market returns: Kenneth R. French Data Library, cited, not under a Creative Commons licence.

The study file is not offered for download. The figures on this page are computed from the Kenneth R. French Data Library (sector and market returns) and FRED (interest rates, CPI); the methodology lists every source, so the series can be rebuilt.

664 observations · Monthly · February 1971 – May 2026 · Sector and market returns: Kenneth R. French Data Library ·
Methodology ·
Cite this dataset

3 / 6
Tech bear markets where tech fell harder than the US market
1.22×
Average drawdown ratio across all 6 tech bear markets
−77.9%
Worst tech drawdown (2000–02 dot-com, total return)
1.29×
Cumulative tech vs market total return (1971–2026)
−0.27 / −0.08
Tech/market ratio vs real 10Y correlation: pre-1995 / post-1995
664
Monthly observations (Feb 1971 – May 2026)

The Tech/Market Ratio Against Real Interest Rates, 1971–2026

Tech/market ratio vs real 10-year Treasury yield, 1971–2026

US technology sector (Kenneth R. French HiTec portfolio) against the whole US stock market, total returns, February 1971 = 100; lower panel: ex-post real 10-year yield.

Two-panel chart, February 1971 to May 2026. Upper panel: ratio of the total-return index of the US technology sector (HiTec portfolio, Kenneth R. French Data Library) to that of the US stock market, February 1971 = 100; it peaks at 149.1 in February 2000, falls to 59.3 in July 2006 and stands at 129.5 in May 2026. Lower panel: ex-post real 10-year Treasury yield (10-year yield minus 12-month CPI inflation), 0.3% in May 2026.

Sources: Kenneth R. French Data Library (5 Industry Portfolios, HiTec; Fama-French factors, Mkt-RF + RF); Federal Reserve Board 10-year Treasury (FRED, DGS10); BLS CPI (FRED, CPIAUCSL). Chart: Eco3min Research.

Key Takeaway

Over 55 years tech outperformed the market in total return (ratio: 100 → 129), but not steadily: the ratio lost ground before 1995, peaked at 149 in February 2000, fell to about 59 in 2002 and again in 2006, and has not regained its 2000 peak. Its correlation with real interest rates is weak in both eras.

How to Read the Ratio

The ratio tracks the total-return index of the US technology sector (Kenneth R. French’s HiTec portfolio) divided by that of the whole US market, both at month-end and normalised so February 1971 = 100. By May 2026 the ratio reaches 129, indicating tech has cumulatively returned 1.29× as much as the market since the start of the series. Over the period it moves between about 59 (September 2002 and July 2006) and 149 (February 2000), a range of 2.5×.

The real rate used is the ex-post real 10-year Treasury yield, computed as the monthly average DGS10 minus contemporaneous CPI year-over-year. This is a 55-year-consistent measure; TIPS-based real yields are only available from 2003. See our US Real Interest Rates Dataset (1962–Present) for the underlying real-rate series.

Federal Reserve tightening cycles are defined here as periods where the Fed Funds rate rose by ≥150 basis points without an intervening cut of more than 50 basis points. Eight such cycles are identified between 1971 and 2024. How the ratio relates to the real yield before and after the mid-1990s is examined in the real-rate section below.

The Duration Framing: and Where It Comes from

The dominant narrative for the Nasdaq’s behaviour during periods of monetary tightening holds that technology equities are long-duration assets. A high share of expected cash flows accrues in the distant future, so any increase in the discount rate compresses present value more than for an index dominated by mature, cash-generating businesses. For the mechanics, see our primer on bond duration. By this framing, the Nasdaq would be expected to fall harder than the S&P 500 whenever real interest rates rise, and benefit disproportionately when they fall.

Measured with the technology sector rather than the Nasdaq Composite, the data support this framing only in part. Tech’s cumulative total return, +47,238% versus +36,464% for the market from February 1971 to May 2026, came entirely after 1995 (the ratio fell before 1995) and not in negative real-rate regimes: months that began with a negative ex-post real yield took the ratio down (×0.90 over 124 months). And in the six tech bear markets ≥20%, tech’s drawdown exceeded the market’s in 3 of 6 cases, with an average ratio across all six of 1.22×. The “falls harder” pattern is real but conditional: it holds in 1990, 2000–02 and 2021–22, not in 1973–74, 1987 or 2007–09.

Important Analytical Context

What is measured, and how its composition shifted. Nasdaq Composite and S&P 500 index levels are not used here: the study compares the US technology sector (Kenneth R. French’s HiTec portfolio: computers and electronic equipment, software and telecommunications, value-weighted) with the whole US stock market from the same library, both in total return. HiTec stands in for the Nasdaq’s technology core; it is not the Nasdaq, whose early decades were dominated by small over-the-counter stocks, financial services and regional banks. The sector’s own composition has also shifted, from IBM and the telephone companies in the 1970s to software, semiconductors and platform businesses after 1995. Direct cross-period comparison requires caution: the “long-duration” framing, if it applies, is a property of the modern composition, not a transhistorical feature of the sector.

What this dataset does not measure. Both series are total returns (dividends reinvested), so dividend differences between tech and the market are already in the numbers. The dataset does not control for tech’s higher market beta (1.11 on monthly returns over 1971–2026, 1.25 since 1995), which mechanically produces larger drawdowns even without a duration mechanism.

Key Finding

Tech fell harder than the market in 3 of the 6 tech bear markets since 1971 and about as much in the other three. It is a finding about downside skew in some episodes, not a confirmation that real-rate duration is the dominant mechanism; the mechanism question is taken up in the real-rate section below.

Six Tech Bear Markets, 1971–2026

A tech bear market is defined here as any peak-to-trough decline of 20% or more in the month-end total-return index of the US technology sector (Kenneth R. French’s HiTec portfolio), where the peak is the highest month-end level in the preceding 24 months. The US market (the whole value-weighted market from the same library) is measured over the same peak-to-trough window. Six such episodes are identified between February 1971 and May 2026. Tech fell harder than the market in three of them (1990, 2000–02, 2021–22); in 1973–74, 1987 and 2007–09 it fell slightly less. HiTec is a stand-in for the Nasdaq’s technology core, not the Nasdaq Composite, whose early decades were dominated by small over-the-counter stocks.

Drawdown comparison: US tech vs US market, 1971–2026

Period Tech drawdown Market drawdown Ratio Macro context
Jan 1973 – Sep 1974 −42.5% −44.9% 0.95× Oil shock; Burns tightening (+962 bp); stagflation onset
Aug 1987 – Nov 1987 −29.4% −29.9% 0.98× October 1987 crash; portfolio-insurance unwind
May 1990 – Sep 1990 −20.9% −15.9% 1.31× S&L crisis; Gulf War; 1990–91 recession
Mar 2000 – Sep 2002 −77.9% −44.9% 1.73× Dot-com bust; 2001 recession; 9/11
Oct 2007 – Feb 2009 −49.8% −50.3% 0.99× GFC: financial-sector collapse; tech fell about as much as the market
Dec 2021 – Sep 2022 −33.1% −24.8% 1.33× Post-COVID inflation; +248 bp Fed Funds tightening over the bear-market window (cycle peak +525 bp by Aug 2023)

Mean drawdown ratio across all six episodes: 1.22×. Median: 1.15×. Standard deviation: 0.31. Across the three episodes where tech fell harder: mean 1.46×, median 1.33×. All values computed from month-end total-return levels (Kenneth R. French Data Library).

Paired bar chart of the six US tech bear markets since 1971 (HiTec portfolio 20% or more below its 24-month high), with the tech decline next to the US market's change over the same months, total returns: January 1973 to September 1974, −42.5% vs −44.9% (0.95×); August 1987 to November 1987, −29.4% vs −29.9% (0.98×); May 1990 to September 1990, −20.9% vs −15.9% (1.31×); March 2000 to September 2002, −77.9% vs −44.9% (1.73×); October 2007 to February 2009, −49.8% vs −50.3% (0.99×); December 2021 to September 2022, −33.1% vs −24.8% (1.33×). Tech fell harder in 3 of 6.

Source: Kenneth R. French Data Library (5 Industry Portfolios, HiTec; Fama-French factors, Mkt-RF + RF), month-end total returns. Chart: Eco3min Research.

Key Finding

In 3 of the 6 tech bear markets since 1971, tech’s peak-to-trough decline exceeded the market’s by a wide margin (5 to 33 points); in the other three it was slightly smaller. The 2007–09 GFC is instructive: a broad financial-sector collapse impaired non-tech segments (banks, REITs, consumer cyclicals) as heavily as the technology sector, which had already corrected severely in 2000–02 and entered the GFC with relatively lower valuations and lower exposure to the housing/credit shock.

A legitimate analytical qualification is that the pattern’s magnitude is driven by a small number of episodes. The 2000–02 (1.73×) and 2021–22 (1.33×) ratios are the two largest in the dataset. Excluding both, the mean across the remaining four episodes is 1.06×, with tech falling harder in 1 of 4. Excluding the two deepest absolute drawdowns (2000–02 and 2007–09) brings the mean to 1.14×. The finding is conditional, and the three ratios close to 1× (0.95× in 1973–74, 0.98× in 1987, 0.99× in 2007–09) are real datapoints, not rounding artefacts.

Key Levels to Watch
  • ▸ Real 10-year yield near 0.3% (May 2026): ex-post, as throughout this study (10-year yield 4.48% minus CPI inflation of 4.17%). The market-based TIPS real yield (DFII10) averaged 2.04%. The tech/market ratio has shown only a weak link with real yields (correlation −0.08 since 1996), and episodes differ. While the ex-post real yield stayed above 3% from December 2001 to July 2002, the ratio fell from 83 to 63; during the March to October 2009 stretch above 3%, when CPI inflation was negative, it edged up from 68 to 70.
  • ▸ Tech/market ratio at 129: below its February 2000 peak of 149, which it has not regained; its lows were about 59 (September 2002 and July 2006). See our Real Interest Rates Dataset and Real Rates vs CAPE Ratio Dataset.
  • ▸ Next FOMC decision and CPI release: the next scheduled FOMC meeting and Q2 2026 CPI print are the primary near-term events that could move the real-rate input. Fed Funds rate is currently 3.64% (March 2026 last verified) after the 2024–25 cutting phase.

Real Rates and the Tech/Market Ratio: No Clean 1995 Break

Tech/market ratio vs real 10-year yield: 1972–1995 and 1996–2026

Monthly observations. The correlation is −0.27 from 1972 to 1995 and −0.08 from 1996 to May 2026: no sign reversal around 1995.

Two scatter plots of monthly observations of the tech/market total-return ratio (February 1971 = 100) against the ex-post real 10-year yield, with least-squares lines: 1972 to 1995, correlation −0.27 over 288 months; 1996 to May 2026, correlation −0.08 over 364 months.

Sources: Kenneth R. French Data Library (5 Industry Portfolios, HiTec; Fama-French factors, Mkt-RF + RF); Federal Reserve Board 10-year Treasury (FRED, DGS10); BLS CPI (FRED, CPIAUCSL). Chart: Eco3min Research.

Key Takeaway

The correlation between the tech/market ratio and the ex-post real 10-year yield is −0.268 between 1972 and 1995 and −0.078 between 1996 and 2026. Neither era shows the strong negative link the duration framing predicts, and there is no sign reversal around 1995.

This is the most important honest disclosure of this study. An earlier version of this page, built on index price data, reported a sign reversal around 1995: the ratio moving with real rates before, against them after. The tech/market total-return ratio does not reproduce it: the correlation is mildly negative before 1995 and close to zero after. On 60-month rolling correlations the value changes sign several times between 1993 and 1998, is negative in about 59% of months since 1998, and is positive from late 2002 to 2011 and again since March 2024. What a regime shift does look like in the data is tracked at the scale of the whole economy in the anatomy of macro-financial regimes since the Great Moderation.

A legitimate analytical qualification is that the technology sector’s composition changed in the same years: the rise of software, the IPO surge of 1995–2000, and the entry of mega-cap technology firms. A duration mechanism, if it operates, works through that composition; the weak correlations above suggest it has not dominated the tech/market ratio in either era. If the sector’s composition were to shift again (toward shorter-duration businesses or cash-rich incumbents) its relationship with real rates could change even without a change in monetary policy regime.

Regime Interpretation

Real 10Y > 4%

Not where the deepest tech drawdowns occurred: the three deepest (2000–02, 2007–09, 1973–74) saw average real yields of 2.65%, 0.25% and −0.99% over their windows. Among the six tech bear markets only 1987 (4.78% on average) falls in this band, and tech fell no harder than the market then. Post-1995 occurrences in this band are concentrated in 1995–98 and mid-2009 and the sample is small (n=18); interpret with caution.

Real 10Y 2% – 4%

Mixed regime band. Post-1995 observations in the 2%–4% range: n=110, median 12-month tech total return +11.7%, % positive 65%. In May 2026 the ex-post real yield (0.3%) sits below this band.

Real 10Y 0% – 2%

Post-1995 base regime. The tech/market ratio has historically expanded modestly here (n=162, median 12m tech return: +18.7%, % positive: 92%, median 12-month ratio change +2.8%). The May 2026 reading (0.3%) falls in this band.

Real 10Y < 0%

Negative real-rate regime. Post-1995 occurrences are concentrated in 2009–13 (post-GFC) and 2021–22 (post-COVID). Post-1995 stats: n=75, median 12m tech return +13.4%, % positive 71%. Sample is dominated by two distinct macro contexts (zero-bound recovery and stimulus-driven post-COVID rebound), so the small %-positive does not generalise cleanly to other negative-rate environments.

What Happened Next? Tech Forward Returns by Real-Rate Regime

This table summarises 12-month forward tech total returns conditional on the real 10-year yield regime at the start of the window. The sample is restricted to post-1995 monthly observations (Jan 1995 onwards through May 2025, the most recent date with a 12-month forward window observable), the modern composition era. The regime classifier is computed in real time from the contemporaneous CPI YoY and 10Y yield, no look-ahead.

Real 10Y regime n Median tech 12m return P25 – P75 % positive 12m Median tech/market ratio change
Negative (< 0%) 75 +13.4% −10.9% to +32.5% 71% +2.2%
Moderate (0%–2.5%) 199 +15.0% +4.6% to +26.1% 83% +2.4%
High (≥ 2.5%) 91 +25.0% +9.5% to +43.1% 81% +2.8%
Non-monotonic finding

Post-1995, the median 12-month forward tech return is positive in all three real-rate buckets and is in fact highest in the ≥2.5% bucket (+25.0%), not lowest. This is the opposite of the simple “high real rates = poor forward returns” reading. The most likely explanation is sample composition: the ≥2.5% bucket is dominated by 2003–07 and 2023–2026, both periods that followed major bear-market troughs and captured the subsequent recovery. The drawdown asymmetry (Section 2) measures peak-to-trough behaviour during equity downturns; the forward-return table measures unconditional 12-month outcomes from any month. These are different questions, and the dataset is honest that the second does not show a clean monotonic regime relationship.

Methodological note: Returns are total returns computed from month-end index levels, non-overlapping in the sense that each month is one observation, but the 12-month forward windows do overlap. The classifier uses the contemporaneous ex-post real yield, computed as the 10Y monthly average minus the latest available CPI YoY. Sample is restricted to post-1995 (Jan 1995 onwards) to cover the modern composition era. All three bucket sample sizes are above 70, but the ≥2.5% bucket is dominated by two long expansions (2003–07 and 2023–26) and its median is therefore strongly affected by survivorship of those particular regimes.

Past distributions are not predictive of future outcomes. Regime-conditional statistics describe historical patterns, not expected returns.

Historical Turning Points: Six Episodes That Shape the Pattern

1973–1974: Oil shock and stagflation

Measured with the tech portfolio, 1973–74 is not a case of tech falling harder: from January 1973 to September 1974 the tech portfolio lost 42.5% in total return against 44.9% for the US market (ratio 0.95×), the smallest ratio of the six episodes. The Fed Funds rate rose from 5.94% to 11.34% over the same period as Burns tightened in response to the oil shock. Documentation: the Federal Reserve’s history of FOMC decisions. This episode falls inside the pre-1995 era; the Nasdaq Composite of those years was a small-cap, financial-services-heavy index, a composition that a technology portfolio does not capture.

August–November 1987: The October crash

The October 1987 crash hit tech and the overall market almost equally: from August to November 1987 the tech portfolio lost 29.4% in total return and the market 29.9% (ratio 0.98×). The entire equity complex fell together in October 1987, driven by portfolio-insurance unwind dynamics rather than by a sectoral revaluation. No tightening cycle was active. The episode is consistent with the idea that “tech falls harder” belongs to bear markets driven by valuations, real rates or earnings revisions, not to mechanical position-unwind events. Both drivers belong to the wider mechanics of how monetary regimes and earnings cycles shape equity markets and ETFs.

March 2000 – September 2002: The dot-com bust

The deepest drawdown in the dataset. From March 2000 to September 2002 the tech portfolio lost 77.9% in total return, while the US market lost 44.9%. The ratio is 1.73×, the largest of the six episodes. The Fed Funds rate fell from 5.85% to 1.75% over the same period, yet tech fell harder despite easing. Real rates barely moved over the window (2.49% to 2.35%), so the episode says little about a real-rate channel: it was a collapse of bubble valuations, which compressed faster in tech than in the broader market.

October 2007 – February 2009: The Global Financial Crisis (tech fell as much as the market)

One of the three bear markets where tech did not fall harder than the market. From October 2007 to February 2009 the tech portfolio lost 49.8% in total return and the US market 50.3%. The drawdown ratio is 0.99×. Three mechanisms plausibly explain why tech did not fall harder. First, tech had already corrected 78% in 2000–02 and entered the GFC with relatively low valuations, while the broad market’s exposure to financials (which collapsed) and consumer cyclicals was much greater. Second, the shock originated in the housing and credit complex, not in equity discount rates, affecting the broader market at least as much as tech. Third, the Fed Funds rate fell 454 bp over the window (from 4.76% to 0.22%), an aggressive easing that supported the long-duration tech exposure relative to the immediate cash-flow stress facing financials. The GFC is documented here because intellectual honesty about the limits of the pattern is what makes the pattern worth citing. A related perspective: our analysis of S&P 500 ETF differences.

December 2021 – September 2022: Post-COVID tightening

The most recent identified bear market. From December 2021 to September 2022, the tech portfolio lost 33.1% in total return while the US market lost 24.8%. The ratio is 1.33×. The Fed Funds rate rose 248 bp from 0.08% to 2.56% over the bear-market window, and continued tightening to a cycle peak of 5.33% in August 2023 (a cumulative +525 bp from the Dec 2021 floor). The ex-post real 10-year yield rose from −5.71% to −4.67% over the bear-market window (the rise into positive territory continued through 2023). This is the textbook post-1995 case: real rates rose, the ratio compressed, tech fell harder.

2015–2018: A cycle without a tech bear market

This tightening cycle passed without a tech bear market: the tech portfolio’s peak-to-trough decline did not reach the 20% threshold, so no formal bear market is logged. Over the cycle window (November 2015 – December 2018, +215 bp Fed Funds increase), the tech portfolio fell 16.1% in total return from September to December 2018, against 14.5% for the market over the same months. Tech still fell harder than the market within the cycle window. The cycle is not unique: in 1994–95 the tech portfolio’s largest decline was 6.1% (market 7.6%) and in 2004–06 11.3% (market 4.7%). It is named here to make clear that the pattern is conditional on a bear market being triggered: not every Fed tightening produces one.

May 2026: Current observation

Since its September 2022 trough, the tech portfolio has returned +202.7% (total return, to May 2026). The tech/market ratio (Feb 1971 = 100) is 129, below its February 2000 peak of 149, which it has not regained. The ex-post real 10-year yield is about 0.3% (10-year yield 4.48% minus CPI inflation of 4.17%), in the lower part of the moderate regime band. In the post-1995 sample, months in the 0%–2% band were followed by a median 12-month tech total return of +18.7% (n=162), with substantial dispersion.

Methodology

This dataset combines five primary series into 664 monthly observations spanning February 1971 to May 2026: US technology sector total returns (HiTec portfolio of the 5 Industry Portfolios, value-weighted, Kenneth R. French Data Library), US stock market total returns (Mkt-RF + RF, same library), 10-year Treasury constant-maturity yield (DGS10 via FRED), Federal Funds effective rate (FEDFUNDS via FRED), and Consumer Price Index for All Urban Consumers (CPIAUCSL via BLS, accessed via FRED). HiTec stands in for the Nasdaq’s technology core; Nasdaq Composite and S&P 500 index levels are not used.

ex-post real 10Y yield (%) = 10Y nominal yield (monthly average) − CPI YoY (latest available)
tech/market ratio = (tech total-return index / market total-return index) × 100, both = 100 in Feb 1971

Bear-Market and Tightening-Cycle Selection

Tech bear market (month-end, total return):
peak = highest month-end level over the 24-month window ending at t
episode = consecutive months below that rolling 24-month high
trough = lowest month-end level of the episode
if trough / peak − 1 ≤ −20%: classify [peak, trough] as bear market

Fed Funds tightening cycle:
start = local minimum of Fed Funds where the 24-month forward rise ≥ 150 bp
end = peak Fed Funds reached without an intervening cut > 50 bp

Sensitivity: lowering the bear-market threshold to 15% adds five episodes (1983–84, 1998, 2011, 2018, 2020), bringing the total to 11, with tech falling harder in 6 of 11 (the exceptions: 1973–74, 1987, 2007–09, 2011 and 2020). Raising the threshold to 25% drops 1990 (tech −20.9%), leaving 5 episodes, with tech falling harder in 2 of 5. The conclusion, tech falls harder in some bear markets but not as a rule, holds across the 15%–25% range.

Real-rate measurement choice

We use ex-post real rates (nominal yield minus contemporaneous CPI YoY) rather than TIPS-implied real rates because the TIPS series begins only in 2003. The ex-post measure gives a uniform 55-year series. For 2003 onward, the correlation between the ex-post and TIPS-implied real 10-year yields is +0.54 in monthly observations (2003–2026); substituting TIPS from 2003 moves the 1996–2026 correlation of the tech/market ratio from −0.08 to +0.08: both values are close to zero. This methodology follows the convention used in Reinhart & Sbrancia (2011, “The Liquidation of Government Debt”).

Dataset Design

Variable Type Unit Source Calculation
date str YYYY-MM-DD derived End-of-month date
tech_market_ratio_idx float index (Feb 1971 = 100) derived (Tech_t/Mkt_t) / (Tech_0/Mkt_0) × 100
ust_10y_yield_eom float % annualized DGS10 via FRED End-of-month value
ust_10y_yield_avg float % annualized DGS10 via FRED Monthly mean of daily values
fed_funds_rate float % annualized FEDFUNDS via FRED direct
cpi_index float 1982–84 = 100 CPIAUCSL via FRED direct
cpi_yoy_pct float % YoY derived (CPI_t / CPI_{t−12} − 1) × 100
real_10y_yield_pct float % annualized derived ust_10y_yield_avg − cpi_yoy_pct
real_rate_regime str Negative / Moderate / High derived < 0%, 0–2.5%, ≥ 2.5%
tightening_cycle_id str C1–C8 derived Algorithm above
tech_bear_market_id str BM1–BM6 derived Algorithm above
tech_fwd12m_pct float % 12-month derived (Tech_{t+12} / Tech_t − 1) × 100
market_fwd12m_pct float % 12-month derived (Mkt_{t+12} / Mkt_t − 1) × 100

Python Reproduction Code

# Reproduce this dataset from primary sources
import pandas as pd
from fredapi import Fred

fred = Fred(api_key='YOUR_FRED_KEY')
# Kenneth R. French Data Library: 5_Industry_Portfolios_CSV.zip (value-weighted, monthly, %) and F-F_Research_Data_Factors_CSV.zip
tech   = (1 + hitec_pct / 100).cumprod()              # HiTec column
market = (1 + (mkt_rf_pct + rf_pct) / 100).cumprod()   # Mkt-RF + RF
dgs10  = fred.get_series('DGS10').resample('M').mean()
cpi    = fred.get_series('CPIAUCSL')
fedfunds = fred.get_series('FEDFUNDS')

cpi_yoy = (cpi / cpi.shift(12) - 1) * 100
real_10y = dgs10 - cpi_yoy
ratio = (tech / market) / (tech.iloc[0] / market.iloc[0]) * 100

# Bear-market identification on the tech index: rolling 24m high; episode = months below it; trough = episode minimum
# Full implementation in /scripts/build_csv.py in dataset bundle
  

Dataset Download & Reproducibility

664 observations · Monthly · February 1971 – May 2026 · 18 columns including bear-market and tightening-cycle identifiers · The study file is not offered for download; the methodology lists every source, so the series can be rebuilt from them.

Data Sources & References

  • Primary Kenneth R. French Data Library, 5 Industry Portfolios (HiTec, value-weighted, monthly total returns; file built from the 202608 CRSP database), accessed September 2026.
  • Primary Kenneth R. French Data Library, Fama/French 3 Factors (US market return: Mkt-RF + RF, monthly), accessed September 2026.
  • Primary Board of Governors of the Federal Reserve System, 10-Year Treasury Constant Maturity Rate (DGS10), accessed via FRED, May 2026.
  • Primary Board of Governors of the Federal Reserve System, Federal Funds Effective Rate (FEDFUNDS), accessed via FRED, May 2026.
  • Primary U.S. Bureau of Labor Statistics, Consumer Price Index for All Urban Consumers (CPIAUCSL), accessed via FRED, May 2026.
  • Research Reinhart, C. M. & Sbrancia, M. B. (2011), “The Liquidation of Government Debt,” NBER Working Paper 16893.
  • Research Lettau, M. & Wachter, J. A. (2007), “Why Is Long-Horizon Equity Less Risky? A Duration-Based Explanation of the Value Premium,” Journal of Finance, 62(1), 55–92.
  • Reference National Bureau of Economic Research, US Business Cycle Expansions and Contractions.

Methodological Limitations

  • The tech portfolio is a sector proxy, not the Nasdaq Composite: it leaves out the Nasdaq’s non-tech listings (small over-the-counter stocks and financials in its early decades) and includes large telecom companies. Its own composition also shifted, from IBM and the telephone companies in the 1970s to software, semiconductors and platforms after 1995, so cross-period comparisons capture composition effects as much as duration effects.
  • The dataset does not measure concentration inside the tech portfolio. In a value-weighted sector dominated by a handful of issuers, a shock on three or four names is enough to move the whole, and broad indices that look diversified, at home or across regions, often return to the same few names. Portfolios exposed to tech through several indices can therefore be more correlated than they appear, a dimension the drawdown ratios above do not capture.
  • All return calculations use value-weighted total returns (dividends reinvested) as published by the Kenneth R. French Data Library, not index price levels.
  • Ex-post real rates use contemporaneous CPI YoY rather than market-implied inflation expectations. The two measures diverge during periods of inflation surprise. TIPS-implied real yields are available only from 2003; correlation with ex-post is +0.54 over the overlap (2003–2026).
  • The sample of n=6 tech bear markets is small. The split (tech harder in 3 of 6, about equal in the other 3) holds across the 15–25% threshold range, and no statistical significance against a specific null hypothesis is claimed.
  • Forward 12-month return windows overlap. The “% positive” and median figures describe the empirical distribution of outcomes, not independent observations.
  • No 1995 break appears in the correlation between the tech/market ratio and real rates; formal structural-break tests (Chow, Bai-Perron) are not applied.

Frequently Asked Questions

How much harder has US tech fallen than the market in past bear markets?

Across the six tech bear markets between 1971 and 2026 (US technology sector against the US market, total returns, Kenneth R. French Data Library), tech fell harder in 3 of 6 cases: 1990 (−20.9% vs −15.9%), 2000–02 (−77.9% vs −44.9%) and 2021–22 (−33.1% vs −24.8%). In 1973–74, 1987 and 2007–09 it fell slightly less than the market (by 0.5 to 2.4 points). Across all six episodes the average ratio is 1.22×, with a range from 0.95× (1973–74) to 1.73× (2000–02). The Nasdaq Composite itself is not measured here.

Is the “tech falls harder during tightening cycles” rule reliable?

Not as a general rule. Looking at tech bear markets ≥20%, tech fell harder in 3 of 6. Looking instead at formal Fed Funds tightening cycles (defined as ≥150 bp increases without a >50 bp intervening cut), several passed without a tech bear market: in 2015–18 the tech portfolio’s largest decline was −16.1% (market −14.5%), in 2004–06 −11.3% (market −4.7%) and in 1994–95 −6.1% (market −7.6%). Tech fell harder in two of those three cycles, not in 1994–95. Not every Fed tightening triggers a tech bear market in the first place.

What is the correlation between the tech/market ratio and the real 10-year Treasury yield?

It is weak. From 1972 to 1995 the correlation is −0.268 (n=288 monthly observations); from 1996 to 2026 it is −0.078 (n=364); over the full 1972–2026 period, −0.057. The sign reversal around 1995 reported by earlier versions of this study, on index price data, does not appear in the tech/market total-return ratio. An index or sector that changes what it holds changes what it measures, which is one reason equity markets drift away from the real economy over long stretches.

Does this dataset prove that real rates cause tech to fall harder?

No. The dataset finds only weak correlations between the tech/market ratio and real rates in either era. It does not establish the “long-duration tech equities” framing, let alone isolate it from confounding mechanisms: composition shift (the sector holds different companies in 2026 than in 1971), beta differential (tech’s market beta is 1.11 over 1971–2026 and 1.25 since 1995), earnings cyclicality (technology earnings respond differently to growth than utilities), and credit sensitivity. Any one of these can amplify drawdowns independently of a duration channel.

What is the current state of the tech/market ratio?

As of May 2026, the tech/market total-return ratio (February 1971 = 100) is 129, below its February 2000 peak of 149, which it has not regained. Since February 1971 the tech portfolio has returned +47,238% and the US market +36,464% (total returns). The ex-post real 10-year Treasury yield is about 0.3% (10-year yield 4.48% minus CPI inflation of 4.17%), in the lower part of the moderate-real-rate regime band.

What does this dataset not measure?

The dataset tracks total-return drawdowns of a technology sector portfolio and of the whole US market; it does not measure the Nasdaq Composite or the S&P 500. It does not control for market beta or earnings cyclicality. It does not test the duration mechanism causally. Forward-return distributions are conditional on observed regimes and use overlapping 12-month windows. For sector decomposition, see our S&P 500 Sector Weights Dataset.

How does the 2021–22 tech decline compare to historical episodes?

The December 2021 – September 2022 decline of −33.1% (versus the market’s −24.8%, ratio 1.33×) is below the average ratio of the three episodes where tech fell harder (1.46×) and above the average across all six (1.22×). The −33.1% drawdown is shallower than the 2000–02 dot-com bust (−77.9%), the 2007–09 GFC (−49.8%) and the 1973–74 stagflation episode (−42.5%), but deeper than 1987 (−29.4%) and 1990 (−20.9%). The Fed Funds rate rose 248 bp over the bear-market window (Dec 2021 → Sep 2022) and reached a cycle peak of 5.33% in August 2023 (+525 bp from the Dec 2021 floor), and the ex-post real 10-year yield rose from −5.71% to −4.67%, making this the most textbook post-1995 tightening-driven episode in the dataset. More context: our panorama of historical market crises.

Source

Eco3min Research. “Does Tech Fall Harder in Bear Markets? US Tech vs the Market, 1971–2026.” Eco3min, May 2026, revised September 2026. https://eco3min.fr/en/nasdaq-falls-harder-than-sp500/. Accessed [date].

Related Eco3min Research

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Last updated — 20 October 2026

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