South Korean retail investors accelerated their return to US equities in July as a sharp domestic selloff weakened a government-backed campaign to bring household capital home. Purchases of American shares reached $4.6 billion during the month, the largest rush into that market in six months, while the KOSPI recorded its steepest monthly loss since the 2008 global financial crisis.
The July total was far above the $2.7 billion monthly average recorded in 2025, when retail investment in US equities had already more than tripled from the previous year. Buying of American stocks also exceeded purchases of domestic shares for the first time since February, marking a rapid reversal in confidence.
Small Korean investors are known locally as “ants” because of their collective market behavior. They have long favored Wall Street over a home market whose performance often follows the fortunes of major exporters in electronics, shipbuilding and manufacturing, although rising artificial-intelligence shares and tax incentives had briefly drawn more of their money into Korean equities.
The KOSPI has fallen 33 percent from its June peak. Samsung Electronics and SK Hynix accounted for 76 percent of the index's 2,257.8 trillion won, or $1.59 trillion, loss in market value as doubts grew over the durability of artificial-intelligence spending and competition from Chinese chipmakers intensified. Leveraged exchange-traded funds tied to the two companies amplified volatility.
The Nasdaq remained broadly flat over the same period, sharpening the contrast for investors comparing the two markets. Analysts warned that continued underperformance by Korean equities could revive sustained retail outflows, complicating efforts to support the won and broaden participation in domestic shares.
Currency movements have reinforced the shift. The won gained 8 percent in July to a nine-month high, its strongest monthly advance since November 2022, helped by SK Hynix raising $26.5 billion and bringing part of the proceeds home. A stronger won makes foreign assets more accessible and reduces the incentive to repatriate existing overseas holdings, particularly while US interest-rate expectations remain supportive of the dollar.
Deposits in Re-shoring Investment Accounts, introduced in March with tax benefits for investors who sell overseas shares and buy Korean stocks, declined for the first time in July. Some capital still entered Korean-focused vehicles, including $319 million directed to a leveraged South Korea fund, but larger flows continued toward US shares and funds. In August, retail investors had already made net overseas equity purchases of $278 million.
Cash held in domestic trading accounts fell to 102.8 trillion won at the start of the week, the lowest since mid-February and well below the record 140 trillion won reached in early June. The contraction shows that tax incentives and governance reforms alone have not secured a lasting homecoming while the gap in performance between Seoul and Wall Street remains wide.
