The European Central Bank published a working paper analysing how the 2022 recalibration of targeted longer-term refinancing operations (TLTRO III) affected euro area bank lending during what it describes as the fastest balance sheet contraction experienced in the Eurosystem. Using bank-level exposure to the sudden liquidity withdrawal, the authors find that the rapid reduction in central bank funding tightened credit supply and was associated with measurable effects for firms. The paper focuses on the ECB’s 27 October 2022 change to the conditions of outstanding TLTRO III, which raised the cost of remaining operations from 23 November 2022 and removed deterrents to early voluntary repayment. It reports that banks repaid more than EUR 1 trillion over six months earlier than previously expected, with around EUR 800 billion repaid in November and December 2022 versus EUR 100 billion expected in June 2022, driving an unprecedented contraction in reserves equivalent to around 2% of banks’ assets and 6% of euro area GDP. Identification uses the market reaction to a 3 July 2022 Financial Times report anticipating features of the recalibration, proxied by abnormal increases in individual banks’ bond yields, and matched bank-firm loan data to separate supply from demand. The estimates link higher exposure to the shock to lower subsequent loan growth, including fewer new lending relationships and more terminations, and show firm-level associations in 2022 including lower employment and investment growth, weaker liquidity and higher arrears, while the main transmission channel is framed as liquidity risk and balance sheet adjustment rather than a shift toward safer borrowers.