(Yicai Global) Nov. 15 -- China's central bank, the People's Bank of China (PBOC), injected a net CNY220 billion (USD33.17 billion) into the financial system via an open market operation today for a peak in the past four weeks.

PBOC conducted a seven-day reverse repurchase of CNY160 billion today, with a 14-day reverse repo of CNY140 billion and a 63-day reverse repo of 30 billion, against the maturing of a CNY110-billion previous reverse repo.

The seven-day reverse repo bid rate was 2.45 percent, while the 14-day rate was offered at 2.60 percent and the 63-day rate was set at 2.90 percent, all unchanged from the previous open market operation.

The overnight Shanghai Interbank Offered Rate (SHIBOR) was 2.10 basis points down to 2.8060 percent, ending a rise for six days in a row. The SHIBOR for one-week loans went up 0.95 basis points to 2.8860, while the three-month term rate rose 1.09 basis points to 4.5455.