China debuts overnight reverse repos at 1.25%, injecting $44 billion in liquidity

The People’s Bank of China just added a new tool to its monetary policy toolkit. On June 29, the PBOC conducted its inaugural overnight reverse repurchase agreement operation, pumping 300 billion yuan (roughly $44.1 billion) into the financial system at a rate of 1.25%.

That rate is 15 basis points below the existing seven-day reverse repo rate of 1.4%, and it came in softer than the market’s expected range of 1.30% to 1.35%.

Why overnight repos matter

Think of reverse repos as the central bank’s pressure valve for short-term cash in the banking system. When the PBOC offers reverse repos, it’s essentially lending money to commercial banks for a set period, using government bonds as collateral. The rate it charges signals how tight or loose it wants monetary conditions to be.

Overnight interbank repo transactions account for over 80% of total turnover in China’s money markets. Until now, the PBOC had no dedicated tool to directly influence that dominant slice of activity. The seven-day reverse repo rate has served as the primary policy signal since 2024, but it’s a somewhat blunt instrument for managing day-to-day liquidity swings.

The new overnight facility, announced on June 25, is designed to give the central bank more granular control. It’s a move that aligns China’s approach more closely with global practices, particularly those of the Federal Reserve, which has long used overnight operations as a core part of its rate-management framework.

On the debut day, the volume-weighted average overnight interbank repo rate fell approximately 2 basis points to 1.3533%.

The rate the PBOC didn’t formally announce

The PBOC did not formally declare the 1.25% overnight rate as an official policy benchmark. Analysts interpret this deliberate ambiguity as a way to protect the signaling integrity of the seven-day rate, which remains the headline policy tool.

The timing isn’t accidental either. Month-end periods in China’s financial markets are notoriously volatile for short-term funding rates. Launching the overnight tool at precisely this pressure point demonstrates the PBOC’s intent to smooth out these recurring liquidity crunches.

Alongside the overnight operation, the PBOC also injected 157.5 billion yuan through its standard seven-day reverse repos, keeping that rate unchanged at 1.4%.

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