Foreign Net Selling of Korean Bonds Hits 839.7 Billion Won

Foreign investors sold a net 839.7 billion won ($624.8 million) of Korean bonds in August. This marks the first monthly net selling since January 2023. The shift ends a streak of continuous net buying that lasted for 30 months.

Their total holdings in Korean debt fell by 12.9 trillion won. The balance dropped from a record 356.6 trillion won on July 24 to 343.6 trillion won on September 2. This represents the largest decline over a 27-trading-day period in five years.

Yield Advantage Disappears

The selling pressure stems from the collapse of arbitrage opportunities. Korean bonds lost their yield advantage over U.S. assets after currency hedging. The spread flipped from positive 68.3 basis points at the end of last year to negative 30 basis points by September 10.

Currency-hedged investments in short-term Korean bonds became less attractive than comparable U.S. dollar assets. This erosion of the yield differential directly triggered the shift from net buying to net selling. Market participants cited this factor as the primary driver of the outflow.

Passive Inflows Mitigate Losses

Inflows tied to the World Government Bond Index helped cushion the blow. Korea’s phased inclusion in the WGBI generated passive demand. Market watchers note that foreign net selling would have been significantly higher without these inflows.

Year-to-Date Flow Data

Foreign investors remained net buyers of 63.26 trillion won in the year through September 11. However, this amount is down 35.2 percent from the same period a year earlier. The data highlights a marked slowdown in foreign capital inflows into the Korean debt market.

GN auto markets/bonds reported the trading data showing this structural shift. The figures confirm a broader trend of retrenchment by global investors. The market now relies on passive index flows to support pricing stability.