China’s central bank has added an overnight reverse repo to its open market operations, a step designed to refine its management of short-term liquidity and align its monetary framework more with peers overseas. In an online statement, the People’s Bank of China (PBOC) said it conducted overnight reverse repos for the first time and offered 300 billion yuan of funds to financial institutions.
The PBOC did not publish the borrowing cost for the overnight operations in its statement. Separately, it disclosed that it injected 157.5 billion yuan via seven-day reverse repos, keeping the seven-day rate unchanged at 1.4%.
Money market conditions reflected the new operations. The volume-weighted average rate of the benchmark overnight repo traded in the interbank market - a commonly used gauge of broad liquidity - was 1.3533% on Monday, about 2 basis points lower than the previous close.
According to sources, the inaugural overnight reverse repo was priced at 1.25%, 15 basis points below the seven-day tenor. The seven-day reverse repo remains the central bank’s main policy rate.
Why the overnight tool matters
The introduction of an overnight reverse repo gives the PBOC a shorter-maturity instrument to smooth liquidity and influence borrowing costs, especially around month- and quarter-ends when money market rates typically see greater volatility. With overnight interbank lending comprising the bulk of repo turnover in China, the central bank’s enhanced ability to guide very short-term rates could strengthen monetary transmission across the financial system.
Market commentators noted the PBOC’s decision not to publicize the overnight rate alongside the announcement. "the PBOC does not want to dilute the signalling effect of the seven-day rate at this point," said Lynn Song, chief economist for Greater China at ING, adding that markets had been expecting an overnight rate lower than the seven-day rate in the range of around 1.30%-1.35%.
Xing Zhaopeng, senior China strategist at ANZ, said the central bank’s choice not to make the overnight rate public suggested it did not intend to "undermine the status of the seven-day reverse repo rate." He added the overnight rate was likely set "a spread below the seven-day rate, with the gap varying over time."
Policy context and structural shifts
The move follows earlier comments from PBOC Governor Pan Gongsheng at the Lujiazui Forum, where he indicated the central bank would increase the variety of overnight reverse repo operations and narrow the band of short-term rates to curb money market volatility. In its quarterly monetary policy implementation report published in May, the PBOC said it would use its role in guiding overnight rates to align them more closely with the policy rate level.
The PBOC-run Financial News cited industry experts noting that strengthening control over short-term interest rates could improve the effectiveness of monetary policy transmission because the volume of overnight interbank lending by financial institutions far exceeds that of other tenors.
The new overnight instrument also reflects broader shifts in China’s financial structure: direct financing through bonds and equities has grown relative to traditional bank lending as a source of new funding, and credit allocation has been moving away from more credit-intensive sectors such as property. The prominence of overnight repo activity - which accounts for more than 80% of repo turnover in China’s interbank market - underscores why a policy focus on the shortest maturities is increasingly relevant.
Comparisons with other central banks
Many overseas central banks have adopted overnight rates as their main policy rates to better anchor short-term yields and the yield curve. "I think we’ll eventually still move in this direction where the overnight rate takes precedence just like in many developed market central banks," Lynn Song said, while noting the PBOC will seek a smooth and gradual transition.
The PBOC’s overnight reverse repo will be watched closely by markets and financial institutions as it begins to influence daily liquidity management and short-term borrowing costs in China’s money markets.
($1 = 6.8031 yuan)