Dow gains 530 points on Oct. 20 on earnings and lower oil; health care leads, Nasdaq flat

SPX QQQ

The Dow rose 1.02% to 52,495.88 and the S&P 500 gained 0.28% on Tuesday as upbeat earnings and a pullback in oil outweighed recent pressure on AI-related stocks; the Nasdaq slipped 0.02%. Health care was the strongest S&P 500 sector, up more than 2%, followed by real estate and utilities. Tech sentiment was hit early by a weak Korean AI IPO, but some AI-related stocks recovered as the session went on.

Dow +529.85 (+1.02%) to 52,495.88; S&P 500 +0.28% to 7,712.57; Nasdaq -0.02%
Health care up more than 2%, the best S&P 500 sector
September housing starts fell 5.2% to a 1.22M annual rate

SPX around the story · hourlySince the story ▲ 0.35%

Moves this explains

CRDO+6.51%Oct 19 · Rose 7.4% in two steps: at the open, as AI hardware stocks recovered from an early wobble and the Nasdaq reversed its opening loss, and after the close, alongside Super Micro's sharply raised quarterly revenue estimate on stronger AI platform demand. No Credo-specific news was reported.DELL+7.15%Oct 19 · Rose 7.0% in two steps: at the open, as AI hardware stocks recovered from an early wobble and the Nasdaq reversed its opening loss, and after the close, alongside Super Micro's sharply raised quarterly revenue estimate on stronger AI platform demand. No Dell-specific news was reported.MRNA+5.95%Oct 19 · Rose 5.9% as health care led the S&P 500, with the sector up more than 2% on the day. No Moderna-specific catalyst was reported; the move tracked the sector.STX+4.36%Oct 19 · Rose 5.2% in two steps: at the open, as AI hardware stocks recovered from an early wobble and the Nasdaq reversed its opening loss, and after the close, alongside Super Micro's sharply raised quarterly revenue estimate on stronger AI platform demand. No Seagate-specific news was reported.WDC+6.46%Oct 19 · Rose 6.6% in two steps: at the open, as AI hardware stocks recovered from an early wobble and the Nasdaq reversed its opening loss, and after the close, alongside Super Micro's sharply raised quarterly revenue estimate on stronger AI platform demand. No Western Digital-specific news was reported.

Source

CNBC

Oct 20, 2026

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