NEW YORK — Stocks closed out a volatile week with a Friday rally, leaving the Dow, S&P 500 and Nasdaq all in positive territory for the week even after a mid-week sell-off rattled investors in AI-linked names.

The Dow Jones Industrial Average led Friday's gains, climbing 423.31 points, or 0.83%, to finish at 51,654.95, according to CNBC's market coverage. The S&P 500 added 0.59% to close at 7,811.54, while the Nasdaq Composite rose 0.64% to 27,366.17.

It wasn't a straight line to get there. Wednesday and Thursday saw the S&P 500 and Nasdaq retreat for two straight sessions as the "AI trade" took a hit amid bond-market jitters, per Yahoo Finance's running coverage. Easing oil prices and a rebound in beaten-down technology stocks helped reverse the slide heading into the weekend.

ALL THREE MAJOR AVERAGES POSTED WEEKLY GAINS TO CAP A VOLATILE FIVE DAYS OF TRADING

Markets were closed Saturday, with no scheduled trading until Monday. The bigger test comes next week, when JPMorgan Chase and Goldman Sachs are set to kick off third-quarter bank earnings — a slate Wall Street strategists have described as make-or-break for sustaining the market's year-long run, given how much of 2026's gains have been concentrated in a handful of AI-linked mega-caps. Earlier previews this week were mixed: Delta posted record revenue that a $4 billion fuel bill mostly erased, while PepsiCo trimmed its full-year profit outlook, a split some strategists say hints at the divide investors should brace for once the bigger banks and tech names start reporting.

Bond yields remain a wildcard heading into that stretch; this week's rate action pushed mortgage rates to their highest level since 2023, a separate but related sign of how sensitive the broader economy remains to Treasury market swings. Traders will be watching Monday's open closely to see whether Friday's rebound carries momentum into next week or proves to be another head-fake in a market that's had several this fall.