Philadelphia Semiconductor Index Sinks 11% as Nasdaq Plunges 5% in $2 Trillion Tech Rout

Wall Street suffered brutal liquidations on Thursday, November 5, erasing an estimated $2 trillion in market capitalisation as semiconductor and artificial intelligence darlings led an aggressive broad-market retreat.

The sell-off was merciless. The tech-heavy Nasdaq Composite plunged 5% into correction territory, while the S&P 500 sank 3.3%. Blue chips offered little shelter—the Dow Jones Industrial Average tumbled 2.2%, shedding more than 1,200 points as initial morning gains of 0.6% collapsed under an avalanche of afternoon selling. At the heart of the wreckage sat the Philadelphia Semiconductor Index, which collapsed 11% in its sharpest single-day rout in months.

Semiconductor Carnage Erases Post-Election Relief

Selling gathered velocity right from the opening bell. Investors aggressively dumped high-multiple semiconductor counters, unwinding the relief rally triggered just 24 hours earlier. Advanced Micro Devices led the retreat, tumbling more than 13%, while Micron Technology shed over 12%. Nvidia dropped more than 6%, dragging megacap benchmarks down with it. Qualcomm added further drag to the board, retreating sharply after reporting quarterly earnings.

Capital expenditure scrutiny hit data-centre infrastructure plays as portfolio managers reassessed multi-billion-dollar artificial intelligence capital cycles against an altered legislative backdrop. The Democratic party's sweeping victory in the US midterm elections triggered immediate reallocation trades across trading desks, replacing election-clearing euphoria with regulatory and fiscal uncertainty.

Crude Rebounds as Geopolitical Pressures Mount

Energy markets moved inversely to equities. Crude oil rebounded as traders weighed unsettled diplomacy between Washington and Tehran to halt military conflict across the Middle East. Brent crude futures pushed back to around $97 per barrel, while West Texas Intermediate hovered near $90 per barrel, reversing steep losses booked during Wednesday's session.

Political crosscurrents sharpened overnight. US Vice-President JD Vance openly linked the conflict to electoral fallout, writing on X: "The reason we lost is the war." Yet question marks persist across trading floors regarding whether President Donald Trump will broker a rapid exit or see Middle East hostilities prolong economic strain.

Dealers now look toward the closing bell with institutional order books heavily tilted toward cash reserves, awaiting clarity on technology infrastructure allocations and post-midterm legislative priorities.