Biggest stock movers today: Equifax (EFX) +11.33% leads the S&P 500 (October 20, 2026)

U.S. equity markets were broadly positive on Tuesday, October 20, 2026, led by solid gains in the Russell 2000 and the Dow Jones Industrial Average, while the Nasdaq remained essentially flat. Market breadth within the S&P 500 was heavily tilted toward advancers, with 402 constituent stocks gaining on the day. Equifax and Hasbro led individual stock advances, while General Motors and DaVita posted the steepest declines.

Today's top S&P 500 gainers
TickerCompanyPrice ($)ChangeWeek to dateDollar volume
EFXEquifax176.54+11.33%+9.48%$703M
HASHasbro109.52+11.20%+10.90%$875M
MRNAModerna242.08+6.69%+11.04%$4.1B
MMM3M171.37+5.78%+4.02%$1.3B
ITGartner219.64+5.74%+6.96%$413M
CRLCharles River Laboratories315.45+5.14%+5.10%$401M
MSCIMSCI591.69+5.00%+3.97%$849M
AREAlexandria Real Estate42.65+4.97%+2.47%$133M
BMYBristol Myers Squibb61.68+4.84%+3.23%$734M
TYLTyler Technologies377.17+4.74%+4.52%$267M
Today's biggest S&P 500 decliners
TickerCompanyPrice ($)ChangeWeek to dateDollar volume
GMGeneral Motors77.09-6.84%-8.18%$1.9B
DVADaVita175.35-6.23%-6.39%$363M
GPCGenuine Parts123.52-5.12%-7.79%$268M
FIXComfort Systems USA1,397.09-4.57%-2.92%$733M
HWMHowmet Aerospace211.63-3.82%-4.22%$1.1B
GEGE Aerospace299.87-3.67%-4.45%$2.7B
PWRQuanta Services596.00-3.62%-5.68%$942M
LRCXLam Research263.45-3.21%-0.19%$2.0B
KLACKLA161.74-2.80%-2.41%$2.0B
ETNEaton381.98-2.43%-2.37%$1.1B
Indices, futures, rates and commodities
MarketLastChangeWeek to date
S&P 5007,712.57+0.28%+0.69%
Nasdaq26,424.82-0.02%+1.09%
Dow Jones52,495.88+1.02%+0.95%
Russell 20002,773.42+1.65%+1.91%
VIX17.31-6.13%-
10-year yield (%)5.12-0.37%-
US Dollar Index101.71-0.26%-
Gold ($/oz)4,141.30-0.45%-
WTI crude ($)97.98-5.48%-
Bitcoin ($)82,573.18+0.88%-

How did the major stock market indices perform today?

Major indexes closed mostly higher on Tuesday, led by small caps and industrial shares. The Russell 2000 gained +1.65% to 2,773.42, and the Dow Jones rose +1.02% to 52,495.88. The S&P 500 added +0.28% to close at 7,712.57, while the Nasdaq slipped marginally by -0.02% to 26,424.82.

The broader market exhibited strong internal strength across the session. S&P 500 breadth saw 402 stocks advancing, 97 declining, and 4 ending unchanged out of 503 constituents.

Over the weekly period starting October 19, the Russell 2000 has gained +1.91%, the Nasdaq has climbed +1.09%, the Dow Jones is up +0.95%, and the S&P 500 has risen +0.69%.

Which S&P 500 stocks were the biggest gainers and losers?

Equifax and Hasbro topped Tuesday's leaderboard, advancing +11.33% and +11.20% respectively. Conversely, General Motors paced the decliners, falling -6.84% to 77.09, followed by DaVita, which lost -6.23% to 175.35.

Other notable gainers included Moderna, which gained +6.69% to 242.08 on $4.1B in dollar volume, 3M, which rose +5.78% to 171.37, and Gartner, adding +5.74% to 219.64. Specific fundamental catalysts for these moves are not in our data, and readers can check the respective companies' SEC filings and press releases.

On the downside, Genuine Parts dropped -5.12% to 123.52, Comfort Systems USA fell -4.57% to 1,397.09, and Howmet Aerospace slipped -3.82% to 211.63. GE Aerospace also shed -3.67% to 299.87 with a dollar volume of $2.7B.

What were the key macroeconomic and commodity movements?

Volatility and crude oil prices dropped sharply during Tuesday's trading. The VIX fell -6.13% to 17.31, while WTI crude decreased -5.48% to $97.98 per barrel. The 10-year Treasury yield edged lower to 5.117%.

The U.S. Dollar Index (DXY) ticked down -0.26% to 101.712, while the 10-year yield fell -0.37% on the day. Gold slipped -0.45% to settle at $4,141.30 per ounce.

In digital assets, Bitcoin gained +0.88% during the session, trading at $82,573.18.

Frequently asked questions

What drove the large price moves in Equifax and General Motors today?

The specific reasons for the movements in Equifax (+11.33%) and General Motors (-6.84%) are not included in our data. Investors can review company press releases and SEC filings for details on corporate developments.

Which stocks have gained the most week-to-date?

Moderna leads the week-to-date gainers with a +11.04% advance, followed closely by Hasbro at +10.90% and Western Digital at +9.73%.

Where did the 10-year Treasury yield and VIX finish the session?

The 10-year Treasury yield finished at 5.117% after a decline of -0.37%, while the VIX fell -6.13% to close at 17.31.

Bottom line

Tuesday's session demonstrated widespread market participation, highlighted by outperformance in small-cap and industrial shares even as tech remained muted. Investors should note that past performance does not guarantee future results. Market participants will continue monitoring index performance and macro shifts throughout the trading week. Live tables are updated during the session on our stock market page.

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