China\u2019s yuan fixing on Tuesday gave a hint that the nation\u2019s authorities may be growing concerned about the pace of the currency\u2019s decline, according to Royal Bank of Canada. The yuan\u2019s reference rate was set at 6.518 per dollar Tuesday morning, a level that was slightly stronger than the 6.5210 average forecast of 19 traders and analysts in a Bloomberg survey. While within the range of projections, and only about 0.05 percent off, the differential means investors should watch out for more aggressive fixings in coming days, said Sue Trinh, head of Asia FX strategy at RBC Capital Markets in Hong Kong. \u201cThis could indicate that China thinks we\u2019ve seen enough CNY depreciation for the time being,\u201d Trinh wrote in a note Tuesday, referring to the onshore yuan. Measured against a replica of the basket of currencies used by the China Foreign Exchange Trade System to manage the yuan, it has dropped 1.6 percent on a monthly basis - \u201ca two-standard deviation event, where China has historically stepped in to stop the rot," she wrote.