The State Bank of Vietnam (SBV) set the central exchange rate at VND 25,192 per US$1 on September 29, down 2 dong from the previous session.
The market mid-rate quoted by Google Finance edged to VND 26,421, while black market rates rose slightly to VND 26,520–26,620.
The spread between the unofficial mid-rate and SBV’s central rate widened to 5.47 percent, up from 5.34 percent on September 26.
On the liquidity front, SBV repos showed a mix of rollovers and maturities.
Seven-day repos fell to US$151.4 million, down from US$189.3 million.
Fourteen-day repos eased to US$113.5 million, while 28-day repos remained steady near US$227.1 million.
Ninety-one-day repos dropped sharply to US$37.8 million from US$75.7 million, reflecting tighter issuance at the long end.
Interbank rates softened across most tenors.
The overnight rate slipped to 4.38 percent from 4.57 percent.
One-week funding costs declined to 5.33 percent from 5.63 percent, while one-month rates eased to 5.22 percent from 5.42 percent.
Only the six-month tenor edged up to 5.61 percent.
See also: How Low Can the Vietnamese Dong Go? Why It’s Sliding & What Might Happen Next