The ECB sounds like it’s working on new rules that would increase bank buffers.
The headline means the ECB is reportedly considering requiring euro-area banks to keep a larger share of their deposit base parked at the central bank.
Today, banks must hold minimum reserves equal to 1% of certain liabilities, mainly customer deposits and short-term funding. The proposal would raise that to 2%. Those required reserves currently earn no interest, so the change would force banks to hold more zero-yielding cash at the central bank.
The practical effect is that this would reduce bank income. Banks currently earn interest on excess liquidity placed at the ECB’s deposit facility, but not on required reserves. If more of their liquidity is reclassified as required reserves, they lose the interest they would otherwise have earned on that money.
The policy motivation is likely fiscal and operational as much as monetary. Since the ECB pays interest on excess reserves, high excess liquidity creates a cost for the Eurosystem. Raising reserve requirements lowers the amount of interest paid to banks without formally cutting rates or changing the main policy stance.
For banks, this is a mild negative. It acts like a small tax on deposits and short-term liabilities. The burden would be larger for banks with big deposit bases and high excess liquidity. At 2%, it would probably not be a major constraint on lending, but it would trim net interest income.
For markets, the read-through is modestly negative for European bank stocks and slightly hawkish for money markets. It would absorb some liquidity and reduce bank profitability, but it is not the same as a rate hike. The main significance is that the ECB may be looking for ways to reduce the cost of running a high-liquidity monetary system while still keeping short-term rates under control.
