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Market wrap: S&P 500 −0.5%, a down day. 324 of 501 S&P 500 stocks rose and 173 fell. Biggest move: CMG +7.1% and COHR −7.1%.

2026-10-08 · S&P 500

Market wrap: S&P 500 −0.5%, a down day

324 of 501 S&P 500 stocks rose and 173 fell. Biggest move: CMG +7.1% and COHR −7.1%.

The story in plain words

Thursday, October 8, 2026. Market wrap: S&P 500 −0.5%, a down day. 324 of 501 S&P 500 stocks rose and 173 fell. Biggest move: CMG +7.1% and COHR −7.1%.

What the data shows for The S&P 500: S&P 500 (SPY) −0.5% today. Biggest gain: CMG +7.1%. Biggest drop: COHR −7.1%. Best sector fund: Energy (XLE) +3.0%; weakest: Technology (XLK) −1.7%.

Worked out from that data: 324 of 501 S&P 500 stocks rose, 173 fell.

This is one of CookieStocks’ daily stock stories about the S&P 500 day in five cards: the index, the biggest movers, sectors and the stories to know. Stories are found automatically each trading day from market data and SEC filings, and every claim is labelled as observed, calculated or a possible contributor. Statistics only, not investment advice.

Prove it

Every claim on the graphic, labelled: observed (straight from the data), calculated (worked out from it), or possible contributor (lines up in time, not a confirmed cause).

  • OBSERVED
    S&P 500 (SPY) −0.5% todayOct 8, 2026, 2:35 PM ET
  • CALCULATED
    324 of 501 S&P 500 stocks rose, 173 fellHow: count of stocks with a positive / negative change today · Oct 8, 2026, 2:35 PM ET
  • OBSERVED
    Biggest gain: CMG +7.1%Oct 8, 2026, 2:35 PM ET
  • OBSERVED
    Biggest drop: COHR −7.1%Oct 8, 2026, 2:35 PM ET
  • OBSERVED
    Best sector fund: Energy (XLE) +3.0%; weakest: Technology (XLK) −1.7%Oct 8, 2026, 2:35 PM ET

More stories

Statistics only, not investment advice. Past moves don’t predict future ones. Data as of Oct 8, 2026, 2:35 PM ET.