The South Korean stock market is brewing bottom-fishing opportunities: foreign capital sell-off slows, Korean won strengthens, and KOSPI 200 valuation drops to the first decile in ten years.

After experiencing extreme leveraged deleveraging and concentrated foreign investor sell-offs, the Korean stock market is now facing a dual inflection point in both valuation and technical aspects. The KOSPI 200 valuation has been reset to the 1st decile of its own ten-year history, and the market narrative is shifting from a one-sided “crisis mode” sell-off to a “bottom rebound.”

On September 8, the Korea Composite Stock Price Index broke above the short-term downward trendline and, for the first time since this round of heavy selling, closed above the 50-day moving average.

Marginal improvement in capital flows and the exchange rate is providing support for the rebound. The pace of unilateral foreign selling is slowing down, the Korean won is appreciating concurrently, and the positive dynamic of “spot price increase and rising volatility” is starting to return.

Historically, a stronger Korean won has helped attract foreign capital inflows. If the exchange rate remains stable, lower foreign demand could become the next positive factor for the Korea Composite Stock Price Index.

Micro-level trading sentiment is also rebounding. The KOSPI Volatility Index (VIX) has seen its first meaningful uptick since the start of this sell-off. According to Bank of America, if investors start chasing out-of-the-money call options again, it could more easily reignite the “spot–volatility resonance” upside momentum.

This marginal shift suggests that the extreme sell-off, previously dominated by concerns over AI capital expenditure and risk aversion, may be nearing its end. With a clear value safety margin emerging, investors need to reassess the bottom support in the Korean market and weigh the sustainability of a rebound amidst the interplay of the semiconductor cycle and geopolitical risks.

Leverage Deleveraging and Valuation Reset to Historical Extremes

The core of this adjustment lies in the post-leverage contraction and the deflating of valuations. Personal investor margin trading and leveraged products had previously been highly active; the leverage contraction turned the valuation adjustment into a sequence of concentrated selling.

Bank of America’s Bubble Risk Indicator (BRI) shows that the KOSPI bubble risk has plunged from the bubble zone to 0.52, and volatility has also been halved.

With the bubble squeezed out, Korean stock valuations have reset into the extreme zone. The KOSPI 200 forward price-earnings ratio is just 6.2 times, in the 1st percentile of its own decade-long history. In comparison, global peers are generally at the 68th percentile—this extreme discount provides the market with strong downside protection.

According to Bank of America, in a context of normalized volatility and cleansed valuations, selectively increasing upside exposure to the Korean stock market now offers an attractive risk-reward ratio. It suggests participating in the upside through three-month call spreads.