Korean Retail Investors Put 74% of US Stock Buying Into 3x Chip ETF SOXL

Korean retail investors put $1.63 billion — 74% of all their US stock buying in the week of Oct. 29 to Nov. 4 — into a single triple-leveraged semiconductor fund, SOXL, according to Korea Securities Depository data compiled by Money Today. The fund fell 37.9% during that same week.

The figure deserves stress-testing before it looks like conviction. Total net buying of US stocks that week was $2.2 billion. That one week equals roughly 40% of October's total of $5.42 billion, which was itself the largest monthly figure in 11 months. Koreans are concentrating, not merely spending.

Why does this concentration matter?

SOXL, the Direxion Daily Semiconductor Bull 3X Shares, seeks three times the daily return of a semiconductor index. Daily compounding works against holders in a sell-off. Money Today calculated that the fund fell about 70% from Oct. 1 to Nov. 6; a 10 million won position bought on Oct. 1 would have been worth about 2.99 million won.

The buying was not steady. Koreans sold more than $900 million of SOXL over the last three trading days of October, SBS Biz reported, then bought back more than that amount in early November. Cumulative net buying of SOXL from October through Nov. 4 reached $4.75 billion. That pattern suggests churn, not a considered position.

US shares now account for 97.6% of Koreans' overseas stock purchases, KED Global reported on Nov. 11, as money leaves China, Hong Kong and Japan. Kang Hye-sung of Sangsangin Securities said individual money has been moving from Korea to the US since July.

Do these flows move the funds themselves?

Yes, materially. Koreans held $5.24 billion of SOXL at the end of August, 27% of the fund, according to KSD data cited by the Korea Herald. They also held 38.8% of Direxion's 2x Tesla fund and 20.9% of ProShares Ultra QQQ. A single national retail base can therefore affect premiums, rebalancing pressure and liquidity in these products.

Other leveraged funds drew money the same week: ProShares UltraPro QQQ (TQQQ) took $220 million and ProShares Ultra QQQ (QLD) $161 million. Among single stocks, investors bought $497 million of Alphabet Class A shares after its post-earnings drop and sold $197 million of Tesla.

What is happening in the home market?

The exodus has a domestic mirror. The Kospi lost a combined 11% on Nov. 5 and 6, fell again on Nov. 9 as foreign investors sold, then rebounded 4.39% on Nov. 10.

Forced liquidations of unpaid brokerage purchases reached 63.0 billion won, about $47 million, on Nov. 10 — up 66% from the previous day and the highest since Oct. 15, according to Korea Financial Investment Association data reported by BigGo Finance. Investor deposits fell to 85.2 trillion won, about $63.6 billion, the lowest since Dec. 24 last year and down from a record 139.7 trillion won on June 4. Margin loans dropped 5.4% in a day to 26.5 trillion won.

Regulators have exempted brokerages from the 140% margin-loan collateral rule through Jan. 31 to slow forced selling. The exemption buys time; it does not fix the leverage that caused the selling.

What the data does not say is how many of these SOXL buyers understand daily-reset compounding. A fund that loses 70% in five weeks requires a 233% gain to break even. If the semiconductor index keeps swinging, the same investors who bought the drop may face the same margin calls they left behind on the Kospi.