Semiconductor sell-off deepens despite strong TSMC earnings

Semiconductor stocks sold off sharply on Thursday, dragging the Nasdaq lower, after solid earnings from industry bellwether TSMC failed to lift the sector. The decline was sparked by heavy losses in Asian markets and reinforced a punishing "sell the news" dynamic for artificial intelligence hardware. By midday, the Nasdaq 100 had fallen 1.37% to 29,097.66, while the S&P 500 dropped 0.39% to 7,542.91 and the Dow Jones Industrial Average slipped 47.16 points to 52,611.48.

Memory manufacturers bore the brunt of the selling pressure. SK Hynix and Samsung plummeted, dragging South Korea's KOSPI index down more than 6%. In US trading, the pain continued for memory and chip designers, with SK Hynix ADRs and Marvell Technology each dropping 9%. Micron Technology and AMD fell 6%, Intel lost 5%, and even sector leader Nvidia declined 3%.

The market's reaction to TSMC underscored a demanding new baseline for AI-related equities. Despite posting results that beat expectations, TSMC's US-listed ADRs were down 2% shortly after the open, having only partially recovered from steeper premarket losses. This mirrored a recent post-earnings slump for Samsung, suggesting that simply beating financial metrics is no longer sufficient to reward semiconductor valuations.

The intense scrutiny comes at a critical time for the sector, with major US chipmakers set to report results in the coming weeks. "This all makes one wonder what US tech corporations will have to come up with to get investors genuinely excited again," said David Morrison, Senior Market Analyst at Trade Nation. "This is important, as the earnings season picks up several gears over the next fortnight."

The harsh reception for chip stocks is part of a broader pattern of elevated expectations across corporate America. Morrison noted that while JPMorgan and Goldman Sachs rallied on strong figures, the rest of the "Big Five" US banks disappointed investors. "But this seems to be as much about investor expectations than poor corporate performance," he said.

Macroeconomic and geopolitical headwinds are compounding the equity market's cautious tone. Tame consumer and wholesale inflation readings this week reduced the probability of a rate hike but did little to convince investors of impending rate cuts. Meanwhile, escalating military strikes between the US and Iran, alongside elevated shipping tensions in the Strait of Hormuz, are keeping broader risk sentiment subdued.