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October 20, 2026 · market close

Dow Jumps More Than 500 Points on Amgen, UnitedHealth and 3M While Apple and Alphabet Pull the Nasdaq 100 Lower

The S&P 500 edged up a fraction of a percent as a broad Dow rally and a narrow Nasdaq 100 decline told two different stories under the same calm index-level number.

The S&P 500 closed at 7,712.57, up 21.84 points, a gain of 0.28 percent. Breadth was strongly positive, with 397 of the index's 494 members higher on the day, even as the headline number stayed modest. Concentration ran at 37 percent, and the index's own description of the session is broad: a wide swath of names drifted higher while a handful of mega-caps leaned the other way. Eli Lilly led all contributors by a wide margin, adding 4.35 points on a 3.75 percent gain, followed by Tesla, Berkshire Hathaway, Johnson & Johnson and AbbVie. On the other side, Apple subtracted 6.15 points on a 1 percent decline, and Meta gave back 3.04 points. Alphabet's two share classes together subtracted 5.00 points, with GOOGL down 2.81 and GOOG down 2.19.

The S&P 500 through the session

The contributor list makes clear that this was a session where breadth and the top line told different stories: nearly four in five members rose, but losses concentrated in a few of the index's largest names kept the net move small.

S&P 500 attribution map, cell size = points contributed

The Dow

The Dow closed at 52,496.00, up 529.97 points, a gain of 1.02 percent, a move that sits at the 90th percentile of the past year and qualifies as large. Breadth was decisively positive, with 22 of 30 members higher. Amgen led with 83.21 points on a 3.29 percent gain, UnitedHealth added 73.58 points on 3.04 percent, Travelers contributed 61.1 points, and 3M jumped 5.78 percent for 55.63 points. Goldman Sachs rounded out the top five. The drags were the same mega-cap names weighing on the S&P 500: Alphabet cost the Dow 23.21 points, Apple 20.45, and Microsoft 9.81, with Boeing and Walmart adding smaller losses.

The Dow through the session

This is where the Dow's story splits from the S&P's. The blue-chip index posted a large move by its own percentile history while the broader market barely budged, because the Dow's heavier weighting toward health insurers, industrials and financials let Amgen, UnitedHealth, Travelers and 3M carry the index well past where the S&P 500's more diluted weighting allowed.

Dow attribution map, cell size = points contributed

The Nasdaq 100

The Nasdaq 100 closed at 29,490.28, down 39.06 points, a decline of 0.13 percent, in divergence mode with concentration at 82 percent. Breadth was closer to split, with 59 of 100 members higher. Apple was the single largest drag at 11.23 points, and Alphabet's two classes together subtracted 20.97 points, with GOOGL down 10.68 and GOOG down 10.29. Meta subtracted 6.38 points and Nvidia 3.34. On the positive side, Tesla added 4.99 points, with Amgen, Moderna, Western Digital and Gilead Sciences also contributing gains; Moderna's 6.69 percent rise was the largest percentage move among the index's top names.

The Nasdaq 100 through the session

The divergence here is the clearest marker of the day: the same Apple and Alphabet positions that only nicked the broader S&P 500 were large enough, against the Nasdaq 100's concentrated mega-cap weighting, to pull that index into the red even as the Dow posted its biggest gain in months.

Nasdaq 100 attribution map, cell size = points contributed

The sectors

Eleven of eleven sectors finished mixed but mostly positive. Health Care led with a 2.38 percent gain, followed by Real Estate at 1.69 percent, Utilities at 1.23 percent, Financials at 1.2 percent, and Consumer Discretionary at 0.92 percent. Staples rose 0.6 percent, Materials 0.51 percent, Energy 0.23 percent, Communication Services 0.12 percent, and Industrials 0.10 percent. Technology was the lone sector in the red, down 0.27 percent.

The 11 sectors by move, top contributor named

Health Care's gain was built on Eli Lilly, which added 1.01 points to the sector on a 3.75 percent jump, the same stock that topped the S&P 500's own contributor list.

Health Care: what moved it

Technology was the day's weakest sector, and Apple was its top driver in the wrong direction, subtracting 0.29 points on a 1 percent decline, consistent with Apple's drag across all three indices today.

Technology: what moved it

Against the past year, today's S&P 500 move sits at the 62nd percentile, an ordinary session by that measure. The Dow's move sits at the 90th percentile, making it a large day for that index specifically, while the Nasdaq 100's decline sits at just the 41st percentile, a below-median move despite the headline-grabbing divergence from the Dow.

The numbers

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Compiled by the WMTMT attribution engine from the session's official data · built by the founders of Babylon Burns