Wall Street Week in Review: Nasdaq Confirms a Correction as an AI Selloff Wipes $3 Trillion

The week's defining move came late, but it rewrote everything that came before. A crackdown on artificial intelligence erased roughly $3 trillion in market value across Thursday and Friday and pushed the Nasdaq into a correction, wiping out a euphoric post-midterm rally that had lifted the S&P 500 to 7,688.62 on Wednesday. By Friday's close the index of the big technology names had fallen far enough below its early October peak to confirm a 10% drawdown, while defensive sectors, gold and silver finished the week higher on the risk-off turn.

Read the numbers together and the week was really two markets living in the same calendar. The first, from Monday through Wednesday, belonged to the broad index: energy, banks and the economically sensitive names that stood to win from a unified Democratic government and falling crude prices. The second, Thursday and Friday, belonged to the artificial-intelligence complex that had carried the rally for months, and it ended the stretch in a full retreat. One market was quietly bidding up the old economy while the other unwound the newest, most expensive bets, and by Friday the two had produced a Nasdaq correction inside a broadly positive rotation story. That split, more than any single index print, is what investors will be arguing about into December.

The table below captures Friday's closes and each asset's move against last Friday. Yields are shown in basis points; every other row is a weekly percentage change.

Three names mostly carried the story in the direction you would guess. The Dow finished at 51,285.73 for a 0.94% weekly loss, the most resilient of the major averages, while the Russell 2000 slipped 2.05% to 2,754.11. The Nasdaq took the brunt, losing 3.37% for the week after one brutal session shaved 5.5% off the index in a day. Away from equities, the 10-year Treasury yield drifted 7 basis points lower to 4.86% over the five sessions, a small tailwind for rate-sensitive corners of the market even as the AI complex collapsed, and the dollar firmed 0.41% to 102.30 as the late-week scramble pulled money into the safe-haven currency. The fact that defensives and value held while growth-heavy tech sold off is the tell: this correction is being paid for by the most crowded trades in the market, not by the economy underneath.

For the broader framework, see our gold coverage.

The week ran in three acts, and two of them traced back to the Democratic sweep. On Wednesday stocks caught fire after the midterms handed Democrats unified control of Congress. The S&P 500 jumped 1.58% to 7,688.62, cyclicals and value names led a distinct rotation, and 10-year yields eased as investors priced a settled political outcome. Lending a hand was a Federal Reserve that held policy steady with a hawkish tone, neither confirming the rate cuts the market had hoped for nor pressing hard against the rally. Our post-midterm reaction coverage laid out how the sweep, more than any single data point, reset the market's political calculus, cutting through a month of pre-election caution in a single session.

Act two opened the moment Thursday's session started and the AI crackdown landed. Chipmakers led the decline, and investors who had spent months paying ever higher prices for a handful of megacap names discovered what concentrated ownership means on the way down. The Nasdaq fell 5.5% in a single day, and by Friday's close the two-day move had erased roughly $3 trillion in market capitalization. The Nasdaq's 24,579.43 settlement put it about 11% below the 27,599.79 it touched on October 6, the standard definition of a correction, and our stock market coverage confirmed the breach step by step. What cushioned the fall was rotation. Investors moved into defensive sectors, and four S&P 500 sectors actually ended the week in the green, a sign the damage was concentrated in the tech-heavy leaders rather than the broad market.

Act three was the oil unwind. Crude had been carrying a thick war-risk premium tied to the conflict, with Brent settled near 118 a week ago, before the Democratic sweep and rising hopes for an Iran peace deal drained it in a hurry. WTI plunged about 9% on Wednesday alone, and though prices steadied late in the week they closed at $90.83, down 12.76% for the week, while Brent closed at $98.32, down 16.42%. For households that is a sharply more benign pump-price backdrop than the market braced for a month ago. Our oil coverage traced the premium's collapse on the session around the sweep, and our follow-up on the unwind tracked the four-session slide toward the lows before Friday's modest firming.

Set the three acts against the prior week and the pattern is clean. The sweep rally reversed the pre-election risk-off that had parked the S&P 500 near 7,540 at Monday's open. The oil unwind reversed the earlier war-risk bid, taking Brent from 117.64 to 98.32 in five sessions. And the AI selloff confirmed what the prior week's drift had started, turning a soft tape into a confirmed Nasdaq correction and handing the S&P 500 a 2.68% weekly loss. In each case the week did not introduce a brand new theme so much as settle a live bet in the market's positioning.

Where the market goes from here depends on what follows a correction that lands with the data calendar nearly empty. The AI policy story, the driver of Thursday's collapse, has no scheduled resolution; what the new Congress does on chips and model regulation will be written in real time, which argues for elevated volatility in the names that led the past year's gains. Oil now sits at levels where a reversal in Iran diplomacy could restock the premium quickly, while a further slide would reinforce the disinflation hand that let 10-year yields drift to 4.86%. December brings the Fed's final meeting of the year, and the payrolls and CPI prints due before it will show whether the hawkish hold survives a softening growth picture. For now, the week's arithmetic is simple. Risk got cheaper for a few days, and defensives, along with gold and silver, up 4.51% and 5.50% respectively, collected the bill.

This content is for informational purposes only and does not constitute financial advice. Past performance is not indicative of future results. Consult a qualified financial advisor before making investment decisions.