The yuan ended one notch firmer versus the US dollar at 8.2770 on Wednesday, remaining near the stronger end of its managed trading range.
The one-year non-deliverable dollar forward discount versus the yuan was at 4,500 points implying a rate of 7.828 yuan per dollar in 12 months' time.
One-year implied yuan volatility was traded at 8.40/10.00 percent on Wednesday.
The yuan moves in a band of 8.2760 to 8.2800 enforced by the central bank.
Turnover was not immediately available. It climbed to $730 million on Tuesday from the previous session's $560 million.
The yuan weakened to 7.6546 against 100 Japanese yen from 7.6179, and softened against the euro to 10.5026 from 10.3738.