Korean retail money quit the 3x chip trade: $4.42B in July, $106M so far in August

Korean retail investors put $4.42 billion of net buying into two instruments in July: SOXL, the ETF tracking three times the daily move of the Philadelphia Semiconductor Index, at $3.58 billion, and the US-listed SK hynix depositary receipt at $843.71 million ^[1][2][3]. In the first 13 days of August, according to Seibro, the Korea Securities Depository's information portal, SOXL netted $52.57 million and the SK hynix ADR $53.42 million, ranking 24th and 23rd ^[4][5][6]. That is roughly 2 percent of the prior month's figure for the same pair ^[7].

The July number matters because of what it crowded out. Total Korean net buying settlement value in US stocks that month was $4.64 billion, so those two names accounted for about 95 percent of it, leaving something like $220 million spread across everything else ^[8][9][10]. Amazon, Micron and SanDisk did not make the top 50 ^[11].

August inverted that. Amazon led net buying at $193.61 million, SpaceX was second at $175.92 million and Alphabet third at $136.30 million, with Bloom Energy fifth at $114.87 million and Tesla sixth at $109.14 million ^{[12][13][14][15][16]}. SanDisk entered ninth at $100.53 million and Micron 12th at $91.37 million ^[17][18]. Six of the top ten were individual stocks ^[19]. The eight disclosed figures total about $1.05 billion over 13 days ^[20], against $4.42 billion concentrated in two tickers over the whole of July ^[3]. On a per-calendar-day basis, SOXL alone was absorbing about $115 million a day in July versus Amazon's roughly $15 million a day this month ^[21].

The trigger was ordinary. Big Tech cloud earnings beat expectations and technology stocks rebounded sharply ^[22]. On July 30 and 31, local time, Micron rose 18.36 percent, SanDisk 25.99 percent and Amazon 15.32 percent, while the Philadelphia Semiconductor Index gained 8.27 percent across the two sessions ^[23][24]. Sedaily's read is that investors took the gains embedded in the triple-leveraged product and rotated into single names with confirmed earnings and AI capex exposure ^[25].

The list also spread down the AI value chain rather than up the leverage curve: optical networking supplier Coherent ranked 11th, Marvell 13th, and Vertiv, which builds data centre power and cooling gear, 16th ^[26][27]. Sedaily characterises this as splitting holdings across cloud, memory, and power and communications infrastructure instead of betting on the direction of one semiconductor index ^[28].

De-risking is not the same as risk aversion. ProShares Ultra QQQ, at twice the daily Nasdaq 100 return, ranked fourth at $126.68 million ^[29], about 12 percent of the disclosed August total ^[30]. An official in the financial investment industry told Sedaily that risk appetite has not weakened, but that July's concentration in triple-leveraged chip products has eased and the criteria for picking stocks and products have become more granular ^[31].

Worth watching: whether the flow through the 6th, when Amazon, Micron and SanDisk held the top three spots before buying widened to SpaceX, Alphabet, Bloom Energy and Tesla, marks a durable preference or a lap of the same momentum ^[32]. Triple-leveraged daily-reset products decay in choppy tape; 2x Nasdaq exposure at $126.68 million says the appetite simply moved one notch down ^[29].