The Art of Monetary Manipulation: Open Market Operations and Interbank Interest Rates

In the final week of August (25–29 August), the State Bank of Vietnam (SBV) conducted net capital withdrawals in the open market. In the interbank market, interest rates for VND decreased across all tenors of one month and below.

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This week, from 25/08 to 29/08, the SBV offered a total of VND 77,000 billion in 7-day, 14-day, 28-day, and 91-day bills at a fixed interest rate of 4.0% via the open market operations channel. The auction results showed a total of VND 41,552.01 billion in successful bids across all tenors, while VND 58,822.36 billion in bills matured during the week. The SBV did not offer any treasury bills during this period. As a result, the net withdrawal from the market through the open market operations channel amounted to VND 17,270.35 billion. The outstanding amount of bills in the pawning channel stood at VND 181,663.7 billion.

In the interbank market, interest rates for VND loans with tenors of one month or less decreased across the board. By the end of August 29, VND interbank rates were as follows: overnight rate at 3.84% (down 1.12 percentage points), one-week rate at 4.39% (down 0.77 percentage points), two-week rate at 4.99% (down 0.61 percentage points), and one-month rate at 5.33% (down 0.37 percentage points). These developments indicate a surplus in the banking system’s liquidity, significantly easing short-term interest rate pressures and allowing credit institutions to stabilize funding costs as the year draws to a close.

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