ECB Marginal Lending Facility Rate: Every Change Since 1999

What is the Marginal Lending Facility?

The Marginal Lending Facility (MLF) allows euro area banks to obtain overnight credit from their national central bank against eligible collateral. It serves as the ceiling of the ECB’s interest rate corridor — no rational bank would borrow in the interbank market at a rate above the MLF. Our rundown of ECB meeting dates compiles this reference.

In practice, usage of the MLF is minimal and typically signals individual bank stress rather than system-wide conditions. Daily usage is published on the ECB’s website. Spikes in MLF usage have historically coincided with episodes of interbank market dysfunction — notably during the 2008 financial crisis and the 2011–2012 sovereign debt crisis. Based on the ECB Data Portal series for ECB Marginal Lending Facility Rate.

Corridor width and its significance

The ECB narrowed the corridor in September 2024 from ±50/75 bps around the MRO to a tighter DFR + 15 bps (MRO) / DFR + 40 bps (MLF) structure. Methodology detailed in the ECB’s official key interest rates. A narrower corridor reduces the range within which money market rates can fluctuate, which becomes important as excess liquidity declines and the interbank market normalizes.

CSV Data Dictionary

Python Code Example

import pandas as pd
from io import StringIO
import requests

url = "https://data-api.ecb.europa.eu/service/data/FM/B.U2.EUR.4F.KR.MLFR.LEV"
resp = requests.get(url, params={"format": "csvdata"})
raw = pd.read_csv(StringIO(resp.text))

df = raw[["TIME_PERIOD", "OBS_VALUE"]].copy()
df.columns = ["date", "marginal_lending_rate"]
df["date"] = pd.to_datetime(df["date"])
df = df.sort_values("date").set_index("date")

df.plot(title="ECB Marginal Lending Facility Rate", figsize=(12, 5))

Related ECB Datasets

Source & Methodology

Source: European Central Bank — Key Interest Rates

Series key: FM/B.U2.EUR.4F.KR.MLFR.LEV

License: ECB open data — free reuse with attribution.

Cite This Dataset

Eco3min Research. (2026). ECB Marginal Lending Facility Rate (1999–2026). Source: ECB. https://eco3min.fr/en/ecb-marginal-lending-facility-rate-dataset/