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SK Hynix stock rout shines light on this stunning semiconductor stock reality

SK Hynix shares fell after the company said it expects capital expenditures to surge 50% this year to at least $31 billion, highlighting a broader rout in semiconductor stocks. All stocks in the Philadelphia Semiconductor Index are now trading below their 50-day moving averages for the first time since April 2025, and the index has declined 18.9% in July, on track for its largest monthly loss since 2008, as investors question whether AI spending has become overheated and worry about rising competition from China.

read2 min views1 publishedJul 29, 2026
SK Hynix stock rout shines light on this stunning semiconductor stock reality
Image: Ca (auto-discovered)

The reaction to SK Hynix's (SKHY) capex guidance on Wednesday only highlights the stunning summer rout in semiconductor stocks.

Shares of the South Korean chip play tanked as the company said it expects its capital expenditures to surge 50% this year to at least $31 billion. The company is attempting to meet the strong demand for its memory chips, which are playing a key role in the AI boom.

Quick insight: The SK Hynix rout will unlikely do anything to reawaken animal spirits in the chips space. All the stocks of the closely watched Philadelphia Semiconductor Index (^SOX) are now trading below their 50-day moving averages, the first such occurrence since April 2025, according to FactSet data.

The SOX has declined 18.9% so far in July, and is on track for its largest monthly loss since 2008.

"Chip stocks are becoming oversold," strategists at The Kobeissi Letter wrote in a note.

AlphaSpace intel: One of 2026's hottest stocks is going up in flames.

Sandisk (SNDK) shares plunged 17% on Tuesday and are now down 30% in five days. The stock has crashed about 55% from its record high in late June.

The stock looks to be on a collision course to test its 200-day moving average around $832, per Yahoo Finance AlphaSpace data. That would be a roughly 24% drop from current trading levels.

The bottom line: Semiconductor stocks are under intense pressure as investors have begun questioning whether the artificial intelligence spending boom has become overheated and have grown more concerned about rising competition from China.

Until these concerns quiet down a bit, it's unlikely that beaten-up semi stocks will see meaningful buying. The declines are happening at a fierce pace, they are spreading, and sentiment has been crushed. Why step in front of this flaming train?

Brian Sozzi* is Yahoo Finance's Executive Editor, host of the 'Power Players With Brian Sozzi' podcast and a member of Yahoo Finance's editorial leadership team. Follow Sozzi on X** @BrianSozzi**,** Instagram**, and** LinkedIn**. Tips on stories? Email brian.sozzi@yahoofinance.com.*

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