The Indonesian rupiah fell to a historic low, down 0.3% to 18,204 per dollar, Bloomberg reports. The currency, which has lost more than 8% since the beginning of the year, is under pressure from the strengthening of the US dollar against the backdrop of expectations for a Fed interest rate hike and investor concerns about the possible exclusion of the country's shares from MSCI's emerging market indices. Goldman Sachs estimates that making Indonesia an independent market could result in an outflow of $5.6 billion in passive investments.