BEIJING — The onshore yuan's longest winning streak in three decades ended after the People's Bank of China raised foreign currency reserve requirements for financial institutions, effectively tightening FX supply.
The mechanism is straightforward: by forcing banks to hold more foreign reserves, the PBOC reduces the quantity available for exchange into yuan, suppressing demand-side pressure on the currency. The policy reverses a period of sustained onshore yuan strength that had no parallel in 30 years.
The PBOC did not disclose the specific magnitude of the reserve ratio increase, but the directional shift signals intent to manage the currency's trajectory. The move contrasts with prior interventions where the central bank defended against depreciation.
Currency appreciation typically erodes export competitiveness by raising prices for foreign buyers. A stronger yuan could weigh on Chinese manufacturers competing globally.
The policy introduces a structural constraint: banks must rebalance balance sheets to comply with new requirements, absorbing FX from the market and reducing its availability for other transactions. The impact on capital flows and trade balances will depend on the magnitude of the adjustment and subsequent market reactions.
