The yuan ended unchanged versus the US dollar at 8.2772 on Friday, remaining near the stronger end of its managed trading range.
The one-year non-deliverable dollar forward discount versus the yuan was at 4,600 points implying a rate of 7.818 yuan per dollar in 12 months' time.
NDFs are transactions 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 8.75/10.75 percent.
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. It climbed to $670 million on Thursday from the previous session's paltry $420 million. The yuan strengthened to 7.6884 against 100 Japanese yen from 7.7492, and firmed against the euro to 10.5185 from 10.5212.