← All notesThe dashboard →
October 16, 2026 · market close

Alphabet and the Chipmakers Drag the Nasdaq 100 Down 2.5 Percent While Energy and Financials Hold the Dow Together

Mega-cap technology losses outran the broader market as the Nasdaq 100 posted its sharpest decline against the past year while the Dow leaned on oil and bank stocks to soften the blow.

The S&P 500 closed at 7,659.44, down 84.62 points, a decline of 1.09 percent. Breadth was roughly split, with 242 of the index's 487 members higher on the day, so the index-level loss came from where the money sits rather than from a broad retreat. Concentration ran at 30 percent, and the gap between the cap-weighted and equal-weighted results, down 0.38 percent, shows the index's largest names did more of the damage than the average stock.

The S&P 500 through the session

The five biggest drags were all technology and communications names: Microsoft took 8.72 points off the index, Broadcom 8.61, Nvidia 8.44, Meta 6.96, and Micron 6.95. On the other side, Apple added 2.35 points, Exxon Mobil 1.91, Berkshire Hathaway 1.29, JPMorgan Chase 1.22, and Chevron 1.21. None of these were enough to offset the top of the list.

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

The Dow

The Dow closed at 52,002.00, down 175.69 points, a decline of 0.34 percent, a softer landing than the S&P 500's. Breadth was weak, with only 14 of the 30 members higher, and concentration measured 98 percent, meaning a handful of stocks explain almost the entire move. The equal-weighted Dow fell just 0.12 percent, underscoring how narrow the day's damage was within the index.

The Dow through the session

Microsoft again led the drags, taking 61.75 points off the average, followed by Goldman Sachs at 59.55, Alphabet at 51.29, Salesforce at 35.90, and UnitedHealth at 31.14. Energy and financials pushed the other way: Chevron added 33.70 points, Travelers 33.58, JPMorgan Chase 24.90, Visa 17.00, and Johnson & Johnson 13.55. That combination is the Dow's divergence from the S&P 500 story: the same mega-cap technology names did the hurting, but Chevron, Travelers and JPMorgan Chase carried enough weight in this index to blunt the decline in a way they could not for the broader market.

Dow attribution map, cell size = points contributed

The Nasdaq 100

The Nasdaq 100 closed at 29,187.55, down 748.04 points, a decline of 2.50 percent, by far the hardest hit of the three indexes. Breadth was thin, with only 32 of 99 members higher, and the equal-weighted result fell 2.12 percent, nearly matching the headline number. That tells a different story than the S&P 500 or Dow: this was not a handful of giants pulling down a resilient index, it was broad selling across the index's technology and communications members.

The Nasdaq 100 through the session

Alphabet's two share classes together subtracted 154.88 points from the index, with GOOGL down 80.37 and GOOG down 74.51. Microsoft took off another 58.75 points, Nvidia 56.89, and Broadcom 56.64. Apple was the clearest offset, adding 16.23 points, with Walmart, Costco, PepsiCo and Linde each contributing smaller gains. None of that came close to balancing the index's top losses.

Nasdaq 100 attribution map, cell size = points contributed

The sectors

Eleven sectors split cleanly along defensive and growth lines. Energy led at 2.52 percent, followed by Utilities at 1.37 percent and Consumer Staples at 1.10 percent. Technology was the weakest sector by a wide margin at negative 3.03 percent, with Communication Services close behind at negative 1.91 percent and Consumer Discretionary down 0.85 percent.

The 11 sectors by move, top contributor named

Energy's gain of 2.52 percent, or 1.68 points, was led by Exxon Mobil, which contributed 0.39 points on a 2.46 percent return.

Energy: what moved it

Technology's loss of 3.03 percent, or 5.74 points, was led lower by Advanced Micro Devices, which subtracted 0.55 points on a decline of 5.95 percent.

Technology: what moved it

Measured against the past year of sessions, today's moves sit toward the softer end of the range: the S&P 500's decline ranks in the 9th percentile, the Dow's in the 30th percentile, and the Nasdaq 100's in the 1st percentile.

The numbers

From Babylon Burns

WMTMT is brought to you by the founders of Babylon Burns. If you want to stay ahead of the markets, read their recent piece on energy short thesis: Short Idea: Saudi Arabia, the country priced for peace..

Want our free weekly recap of what moved the market, straight to your inbox? Subscribe to the WMTMT Substack.

← Dow Jumps Past 52,000 on Goldman and Home De
Babylon Burns

The letter on markets and macro by the people who built this engine. Subscribing below joins the Babylon Burns letter.

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