The yuan finished one notch weaker versus the US dollar at 8.2769 on Thursday, but it was still near the stronger end of its managed trading range.
The one-year non-deliverable dollar forward discount versus the yuan was at 1,350 points implying a rate of 8.143 yuan per dollar in 12 months' time.
NDFs are a transaction where a forward price is agreed between a customer and a bank, but settlement on the value date is undertaken entirely in US dollars.
One-year implied yuan volatility was traded at 5.30/5.60 percent on Thursday.
Implied volatility is a measure of how much the options market expects the price of the underlying asset to move during the life of the option.
The yuan moves in a band of 8.2760 to 8.2800 enforced by the central bank.
Turnover was not immediately available but hit $520 million on Wednesday. The yuan ended stronger at 7.5884 against 100 Japanese yen from Wednesday's 7.5967, but weakened versus the euro to 10.2284 from 10.1739.