PBOC's 7-Day Reverse Repo at Zero for Seven Straight Sessions: What Signal Is Being Sent?

Recently, two notable changes have emerged in the People's Bank of China's open-market operations: first, the 7-day reverse repo operation has been at zero for several consecutive sessions; second, the central bank conducted overnight reverse repo operations in mid-August.

On August 19, the PBOC announced that, based on primary dealer demand, the day's 7-day reverse repo operation volume was zero, while it injected 327.4 billion yuan via overnight reverse repo.

That completed the four overnight reverse repo operations the central bank had pre-announced on August 12. Since August 11, the PBOC has set the 7-day reverse repo volume to zero for seven consecutive trading days.

In the August 12 announcement, the PBOC capped each daily overnight reverse repo at 600 billion yuan. On August 14, 17, 18, and 19, it conducted 349 billion, 565.5 billion, 469.7 billion, and 327.4 billion yuan respectively.

Wang Qing, chief macro analyst at Golden Credit Rating, said liquidity has been relatively ample since August 14, and financial institutions' daily demand for the overnight reverse repo has been below the 600 billion yuan cap. The driver may be that August is a low-tax month, with a relatively modest tax-payment-related liquidity tightening effect.

Tan Yiming, chief fixed-income analyst at Tianfeng Securities, said that under multiple objectives, the signaling significance of the zero 7-day injection has weakened. On one hand, with overall liquidity stability, the PBOC has no need to deliver a stronger easing signal through the 7-day facility; on the other, short-term disturbances such as tax payments and government bond issuance remain, and the central bank also does not want the market to form tightening expectations. Therefore, the zero 7-day injection mainly represents marginal restraint on market expectations.

Tan said the zero 7-day operation has not materially changed the market's view of stable funding conditions. The PBOC is unlikely to substantially shift market expectations via a single open-market operation.

On August 19, the Shanghai Interbank Offered Rate (Shibor) overnight rate rose 2 basis points to 1.3810 percent, and the 7-day Shibor rose 0.5 basis point to 1.3850 percent.

By close, the DR007 weighted average was 1.3817 percent and the DR001 weighted average was 1.3800 percent; the Shanghai Stock Exchange's 1-day Treasury reverse repo rate (GC001) was 1.4650 percent.

During the four trading days from August 14 to 19, both the DR001 and DR007 averages ran steadily below the 1.4 percent policy rate, with both edging lower than the prior period.

The important backdrop of this round of seven consecutive zero 7-day injections is the PBOC's recent acceleration of the shift toward a price-based monetary policy framework, with the overnight reverse repo gradually becoming a routine tool. The central bank's policy tone of maintaining ample liquidity has not changed.

Zhong Linnan, senior macro analyst at GF Securities, said the size of open-market operations, whether expanding or contracting, only indicates whether banking-system liquidity is ample or in deficit, not the policy stance itself. The PBOC's current overall stance remains accommodative. Although the 7-day facility has been set at zero for several sessions, ample liquidity has been delivered via the overnight reverse repo and MLF rollover, ensuring that market funding remains stable and rates are anchored near the policy rate.

Going forward, against a backdrop of economic recovery and muted credit demand, the PBOC is expected to maintain relatively accommodative liquidity, with both interest rates and credit conditions gradually easing. Structural tools may be used more frequently, with short-term rates likely to continue at low levels.