China injects 18 billion yuan via 7-day reverse repos at 1.40% as PBOC keeps liquidity taps open

The People’s Bank of China pumped another 18 billion yuan (roughly $2.5 billion) into the financial system through 7-day reverse repos, keeping the rate pinned at 1.40%. It’s a modest injection by PBOC standards, but it fits neatly into a broader pattern of deliberate liquidity management that has defined China’s monetary approach through 2026.

For those unfamiliar with central bank plumbing: a reverse repo is essentially the PBOC lending cash to commercial banks for a short period, using government bonds as collateral.

The 1.40% rate tells the real story

The 7-day reverse repo rate has become China’s de facto primary policy rate, and it has held firm at 1.40% across recent operations.

Between 2022 and 2024, the PBOC conducted similar-sized 18 billion yuan injections, but those came at significantly higher rates averaging around 1.80%. The 40-basis-point decline from that average to the current 1.40% reflects a meaningful shift in the central bank’s stance over the past two years, one designed to keep borrowing costs lower and credit flowing through an economy that has faced persistent headwinds.

Month-end mechanics and new tools

This particular operation comes against a backdrop of much larger liquidity moves. On July 29, the PBOC deployed a combined 806.5 billion yuan in a single session: 206.5 billion yuan through the standard 7-day repos at 1.40%, plus a hefty 600 billion yuan via overnight reverse repos at 1.25%.

That kind of surge is typical around month-end periods, when banks face settlement deadlines and regulatory requirements that temporarily strain their cash positions.

The overnight reverse repo tool itself is relatively new, introduced by the PBOC in mid-2026 to give it more granular control over very short-term funding conditions. Before its launch, the central bank primarily relied on the 7-day instrument. The overnight rate sitting at 1.25%, below the 7-day rate of 1.40%, follows standard yield-curve logic: shorter-duration lending carries less risk, so it commands a lower rate.

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