Korea's top 1% traders dump LG Innotek as brokers cut its quarter by half and blame the won

LG Innotek fell 12.94 percent on Monday October 12 to 498,000 won, down 73,500 won ¹. The Korean company supplies the variable-aperture main camera module for Apple's▲+1.08% — Apple, up 1.08 percent today iPhone 18 Pro, and its optical business, sold almost entirely to Apple, made up about 82 percent of second-quarter revenue ¹⁰.

The stock topped the sell list↗ of Mirae Asset Securities↗ clients whose one-month returns rank in the top 1 percent ¹. The selling appears to follow forecasts that third-quarter earnings will fall short of market estimates ¹. At Monday's price, the stock sits about 73 percent below its June 1 peak of 1,814,000 won ².

The miss is already in the price

Parent LG Electronics↗ reported preliminary third-quarter operating profit of 781.8 billion won↗ on October 7, 19.9 percent below the 975.7 billion won consensus; its shares fell more than 9 percent and brokers named LG Innotek as the drag ³⁴. The mechanism is a currency time lag: materials bought in the second quarter, when the dollar was strong, flow into third-quarter costs, while finished modules ship at the weaker prevailing rate ³. The won closed the second quarter at 1,549.4 to the dollar on June 30; the third-quarter average was 1,418.6, the steepest three-month fall in 28 years↗ ⁵. That gap between input cost and selling price cannot be closed inside one quarter.

Shinhan Investment & Securities cut its third-quarter estimate for LG Innotek from 304 billion won to 156.9 billion won, and Meritz cut its own by 53.6 percent to 150.1 billion won ³. Kiwoom sees 91.7 billion won, down 55 percent year on year; Yuanta sees 78.7 billion ³⁶. All four sit below the 245.8 billion won LG Innotek earned in the second quarter ¹⁰.

The defense: a timing accident at 12 times earnings

Kiwoom kept a 1.1 million won target and a buy rating↗ ². "Setting aside the exchange rate, business conditions are solid with no meaningful change," analyst Kwon Min-kyu↗ wrote, and the stock trades near 12 times earnings against a three-year average of 11.6 ². Yuanta cut its target to 1.2 million won from 1.4 million but kept the buy↗, expecting selling prices to rise as variable apertures reach existing modules and cost pressure to ease from the fourth quarter ⁶. Market share and average selling prices have not meaningfully declined ³. The longer case is substrates, the boards that link high-performance chips: LG Innotek is discussing supply agreements averaging four to five years with major FC-BGA clients ⁶¹⁰.

The prosecution: the customers are cutting

The bear case is demand, not currency. Apple cut October component orders for the iPhone 18 Pro by 15 to 20 percent↗ after memory costs pushed its starting price up $100 ⁷⁸. Samsung↗ has told suppliers to ship 20 to 30 percent fewer components and will cut fourth-quarter phone output by as much as 30 percent ⁹. No report ties either cut to LG Innotek by name. But its optical business is sold almost entirely to that same customer ¹⁰, and the substrate offset arrives late: FC-BGA reaches PC CPUs this quarter, server switches in 2027 and server CPUs in 2028, with Vietnam volume production from 2028 ⁶.

The deciding number is fourth-quarter margin

LG Innotek finalizes third-quarter results later this month ³. Yuanta's test is mechanical: inputs bought at the cheaper rate flow into production and margins rebound ⁶. If they rebound, the won explains the miss. If October's order cuts surface in shipment guidance instead, demand does.