Kospi whiplash calls to rein in rosy forecasts, margin trading

South Korea's roller-coaster stock market in July has prompted calls for tighter scrutiny of overly bullish brokerage research and stricter margin-lending rules, with industry officials arguing that inflated expectations and heavily leveraged trading amplified retail investors' losses amid sharp market swings. According to the Korea Exchange, the Kospi fell 22.19 percent in July after surging 101.14 percent in the first half. Circuit breakers were triggered on two consecutive trading days for th