Asian Retail Investors: Seohak Ants to NISA and SIPs — 2026-10-09
South Korean retail investors have pushed their U.S. stock holdings past the $200 billion mark for the first time in four months, driven by a resurgence in leveraged semiconductor bets. Meanwhile, Indian retail participation cooled slightly in September with a decline in new demat account openings, though SIP inflows hit record highs, and Chinese margin balances saw a modest weekly contraction as investors navigated post-holiday volatility.
Asian Retail Investors: Seohak Ants to NISA and SIPs — 2026-10-09
Top developments
Korean "Seohak Ants" Breach $200 Billion U.S. Stock Milestone
As of October 5, South Korean retail investors’ holdings of U.S. stocks reached $200.2 billion, surpassing the psychological threshold for the first time since June. This surge follows four consecutive months of net buying, with the leveraged semiconductor ETF SOXL emerging as the most purchased asset among Korean retail traders during this period. The renewed appetite for high-beta U.S. tech assets signals a shift away from defensive domestic positions despite recent KOSPI volatility.

India’s Demat Account Growth Slows Amid September Market Dip
New demat account openings in India fell by 11.5% in September to 2.89 million accounts, reflecting a cooling in retail investor sentiment following a sharp market correction. Despite the drop in new entrants, total SIP inflows reached a record ₹32,297 crore, indicating that existing investors are maintaining their systematic contributions even as new capital formation slows. The stoppage ratio for SIPs improved to 81.05% in August, suggesting greater resilience among current participants compared to the earlier peaks in April.

China’s Margin Balances Contract; ETF Leverage Declines
China’s two-way margin balance (liangrong) decreased to 2.637 trillion yuan in the week ending October 2, reflecting a cautious stance from leveraged investors ahead of the Golden Week holiday. Specifically, ETF margin balances dropped by 7.097 billion yuan on September 30, with financing balances falling to 104.4 billion yuan. This contraction aligns with broader market uncertainty, though dividend-focused strategies showed relative strength in the first trading days after the holiday break.
Taiwan ETF Beneficiaries Surge Post-Holiday
Taiwanese retail investors continued their heavy allocation into high-dividend ETFs, with the number of beneficiaries increasing by 70,000 in the week following the Mid-Autumn Festival. Eleven ETFs, including the popular 00919 and 0056, saw their beneficiary counts hit record highs, driven by strong market performance and attractive yield profiles. This trend underscores the persistent "ETF mania" in Taiwan, where retail investors increasingly prefer diversified, income-generating products over single-stock picks.

Local view
In South Korea, media outlets like Digital Today and Seoul Economic Daily highlight the dual strategy of "Seohak Ants" (Korean investors buying US stocks): aggressively buying leveraged chip ETFs like SOXL while simultaneously parking cash in ultra-short-term Treasury ETFs to hedge against volatility. Financial News notes that while net buying volumes have halved compared to July, the shift toward income-generating assets like dividend ETFs suggests a more defensive posture within the bullish trend.
In India, Economic Times Hindi and Business Standard report that despite the slowdown in new demat accounts, the "SIP culture" remains robust, with India ranking second globally in average SIP returns (8.4%). Local analysts emphasize that while short-term market crashes cause anxiety, long-term investors are advised to maintain their contributions, as historical data shows high success rates for 5-year SIP horizons.
Context & numbers
- Korea: U.S. stock holdings hit $200.2 billion (Oct 5); SOXL was the top net buy over the last month. Net U.S. bond purchases exceeded stock purchases in late September as Treasury yields rose.
- India: September demat account additions: 2.89 million (-11.5% MoM). SIP inflows: ₹32,297 crore (record). SIP stoppage ratio: 81.05% (Aug).
- China: Two-way margin balance: 2.637 trillion yuan (week ending Oct 2). ETF margin balance: 112.6 billion yuan (Sep 30), down 7.1 billion yuan daily.
- Japan: No fresh NISA inflow data available for the specific week of Oct 2–9; latest comprehensive report covers August data.
On the radar
- China Fund Launches: Over 96 new funds are scheduled for issuance in October, with 60% focused on equity strategies, signaling a potential wave of institutional and retail liquidity entering the A-share market post-holiday.
- Korea Bond Yields: Continued monitoring of U.S. Treasury yields is critical as they influence the "parking" behavior of Korean retail investors who are increasingly using short-term bond ETFs as cash equivalents.
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