Asian currencies remain vulnerable to further pressure if the Fed signals additional tightening after a widely expected rate hike at its September meeting, OCBC FX Strategist Christopher Wong says. The dollar’s latest upswing has been broad-based across major and Asian currencies, supported by higher Treasury yields while softer risk sentiment and elevated oil prices weigh on higher-beta currencies, lower-yielders and oil-importing currencies. The Indian rupee is particularly exposed to the energy shock, while the South Korean won and Taiwan dollar are sensitive to equity flows and broader risk sentiment.