Philadelphia semiconductor index falls for eight straight sessions
The Philadelphia Semiconductor Index experienced eight consecutive days of declines concluding on Friday, Oct 16, dropping roughly 16 per cent during that stretch to mark its longest slump since the 2008 global financial crisis. This sharp downward momentum has rattled global technology markets despite continued heavy spending on artificial intelligence infrastructure by major corporations.
How the Semiconductor Index Stumbled
Comprising 30 prominent US-listed semiconductor enterprises such as Advanced Micro Devices and Nvidia, the Philadelphia Semiconductor Index measures a vast segment of the industry. Following a 27 per cent rebound from Jul 29 to Oct 6, the index pulled back more than 8 per cent. Technical analysts noted that the price failed to hold above the 12,700 key swing high resistance level for consecutive trading sessions starting Oct 8.
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The price subsequently fell below the 5-day, 10-day, and 20-day Simple Moving Averages. This technical breakdown signaled a clear loss of short-term bullish momentum. The Relative Strength Index fell below the neutral 50 threshold, indicating that sellers took intermediate control of the market.
Global Spillover and Market Divergence
The rout quickly spilled over into Asian markets. Major players such as South Korea’s Samsung Electronics and SK hynix plunged about 18 per cent and 24 per cent respectively during the week. In Japan, flash memory maker Kioxia Holdings dropped nearly 24 per cent, while Taiwan’s TSMC fell about 5 per cent despite reporting another record quarterly profit.
Yields sank and the Nasdaq tanked. Be careful what you wish for when it comes to lower yields, especially if it is due to AI slowing down. pic.twitter.com/qcfnvHXXW0
Wall Street indices also felt the pressure. The S&P 500 lost 1.09 per cent to end at 7,659.44, while the Nasdaq Composite shed 2.14 per cent to close at 26,140.03. Both major benchmarks ended below their 50-day moving averages as traders shifted away from artificial intelligence-related names.
Financing Pressures and Rising Debt Concerns
Market observers pointed to intensifying competition and tightening capital constraints as primary drivers of the sell-off. Investors assessed intensifying competition from China’s CXMT Corp, which reported a chip technology breakthrough rivalling established manufacturers. Executives at Intel and Broadcom warned that capital access could pose a major headwind to the artificial intelligence boom.
Borrowing costs have also climbed. Banks such as JPMorgan and Goldman Sachs limited their exposure to AI startup Volta Infrastructure’s US$5 billion loan deal, which marketed a yield of about 11 per cent. Neocloud providers experienced heavy losses as debt totals mounted. CoreWeave saw its total debt rise above $51 billion, sending its shares down sharply alongside peer Nebius.
Despite these financial hurdles, demand for computing infrastructure remains strong. Around US$600 billion in chip and data center expenditures is projected from Meta, Alphabet, Amazon, and Microsoft throughout the current year. Technology executives and analysts maintain that underlying demand is solid, framing the market reaction as a recalibration of timing and return on investment expectations rather than a fundamental collapse of the sector.
Excellent take on the state of it all from @sonusvarghese right here. It really is all about AI. AI or Bust is another way to put it. https://t.co/pLdNNYxH7b