On Monday, October 5, 2026, the Nasdaq closed at a record 27,477.31, up 1.1%, while the S&P 500 rose 0.7% to 7,773.95. AI-linked and other large technology stocks helped lift shares, with Nvidia a particularly strong contributor. At the same time, the 10-year Treasury yield rose to about 5.3%. The S&P 500 advanced but did not close at a record that day.
How the major indexes finished on October 5
The Associated Press reported these closing levels for Monday, October 5, 2026:
| Index | October 5 close | Change | What the figure means |
|---|---|---|---|
| Nasdaq | 27,477.31 | Up 1.1% | A record close, according to the Associated Press. |
| S&P 500 | 7,773.95 | Up 0.7% | Higher on the day, but still below its previous record, according to the Associated Press. |
These are closing figures, not live market quotes. An earlier Reuters snapshot, taken at 10:19 a.m. ET, showed the S&P 500 up 0.39% at 7,753.05 and the Nasdaq up 0.62% at 27,360.28. The difference reflects the indexes’ movement over the rest of the session, as well as the distinction between intraday and closing readings.
Which stocks helped lift the market?
Technology and growth shares contributed to the advance. The Associated Press said stocks across the AI industry were strong and identified Nvidia, up 2.1%, as the single strongest force lifting the S&P 500 that day. Reuters also reported early gains in Nvidia, Meta Platforms, Microsoft and Tesla.
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Those gains help explain the index move, but they do not show that every AI-related stock rose or that AI was the only reason the indexes advanced. An index can gain substantially with support from a group of large companies even when many other stocks are mixed or falling.
Why did stocks rise while Treasury yields surged?
Stocks and Treasury yields reflect different, overlapping expectations. Investors can be optimistic about company earnings and growth opportunities—particularly in technology—while bond markets demand higher yields. On October 5, reporting pointed to concerns including government finances, debt issuance, energy costs and inflation as factors behind elevated yields, while expectations for corporate earnings and technology growth supported equities.
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Higher yields can weigh on stocks by making borrowing more expensive for companies and households and by giving investors a more attractive alternative to riskier assets. They can also put pressure on the prices investors are willing to pay for future corporate earnings. But those effects do not dictate every session’s direction: investors may still buy shares if they expect earnings or growth to outweigh the higher-rate headwind. That is a description of the competing forces reported that day, not a prediction of future returns.
What happened to Treasury yields?
The 10-year Treasury yield rose on October 5, but reports captured it at slightly different times and to different levels. The Associated Press reported 5.31%, up from 5.28% late Friday. Reuters’ intraday report put it at 5.296%. Kiplinger reported a 5.309% 10-year yield and a 5.664% 30-year yield, both at new 52-week highs. These are dated readings from different reports, not current quotes; the 30-year figure is a different maturity from the 10-year rate.
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Did the record mean the whole market was rising?
No. A record for a major index does not mean most stocks reached highs or even advanced. In Reuters’ intraday snapshot on October 5, the Nasdaq had 23 stocks at new 52-week highs and 157 at new 52-week lows. The S&P 500 had 3 new highs and 18 new lows. Those counts are an intraday breadth measure, not closing totals, and they show why the headline index performance should not be mistaken for a uniform market rally.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to read the October 5 headline now
“Today” refers to the Monday, October 5, 2026 session—not the current market session. The next day was a separate trading session: The Guardian reported that on Tuesday, October 6, both the S&P 500 and Nasdaq closed at records after an AI-chip rally while Treasury yields dipped. That later move should not be folded into October 5’s results.
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