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Big moves

Why a share price jumped or fell, checked against the filings.

  1. FMC's 30.5% jump on Friday: what the evidence shows

    Big moves FMC

    FMC Corp shares rose 30.5% on Friday, 5.8x a typical day's move. Here is the clearest evidence-backed explanation.

  2. Illumina shares fell 18.6% despite a profit beat and raised guidance

    Big moves ILMN

    Illumina shares fell 18.6% on 2026-10-30, a move 5.7x its typical daily swing, after third-quarter revenue of $1.13 billion missed Wall Street forecasts even as adjusted profit beat estimates and full-year guidance rose.

  3. Oppenheimer Holdings' 20.1% drop on Friday: what the evidence shows

    Big moves OPY

    Oppenheimer Holdings Inc shares fell 20.1% on Friday, 8.2x a typical day's move. Here is the clearest evidence-backed explanation.

  4. Piper Sandler shares fall as third-quarter revenue, margin and profit all slip

    Big moves PIPR

    Piper Sandler shares fell 7.1% on 2026-10-30, after third-quarter net revenues, pre-tax margin and earnings per share all declined versus both the prior quarter and a year earlier, confirmed in the firm's own results release.

  5. Roblox shares fell 18.1% as weak Q4 bookings guidance overshadowed a revenue beat

    Big moves RBLX

    Roblox's own fourth-quarter guidance, not its third-quarter results, drove Friday's slide: bookings are guided down 10% to 15% and daily active users fell year-over-year for the first time, even as revenue and earnings beat estimates.

  6. Stryker falls 7.0% as guidance cut outweighs 7.7% organic growth

    Big moves SYK

    Stryker fell 7.0% on 30 October 2026 after cutting full-year guidance, even though third-quarter organic sales grew 7.7% and adjusted earnings per share rose 10.3% to $3.52.

  7. Why ServiceNow shares fell 27.3% after a weak fourth-quarter revenue outlook

    Big moves NOW

    ServiceNow shares fell 27.3% on 29 October, a day after third-quarter results beat the company's own guidance but fourth-quarter revenue guidance fell short of expectations, reviving concerns about slowing contract growth even as free cash flow guidance was raised.

  8. Xerox shares fall 39.2%: dividend suspended, guidance cut after $1.0 billion loss

    Big moves XRX

    Xerox shares fell 39.2% on 29 October after the company suspended its dividends, cut full-year free cash flow guidance and reported a $1.0 billion net loss tied largely to a goodwill impairment in its print business.

  9. Fortinet shares fall 22.0% as a lower service-revenue outlook outweighs a quarterly beat

    Big moves FTNT

    Fortinet's stock fell 22.0% on 29 October after third-quarter revenue grew 20% to $2.08 billion and beat guidance, but a full-year service-revenue range of $5.150 billion to $5.170 billion pointed to slowing growth in its largest segment.

  10. Climb Global's record quarter sends shares sharply higher

    Big moves CLMB

    Climb Global Solutions shares rose 26.8% on 29 October 2026 after record third-quarter results, with net sales up 37% and net income up 69% from a year earlier. The advance was the stock's largest one-day gain since 30 October 2015.

  11. Crocs shares rose 25.7% after Q3 beat and third straight guidance raise

    Big moves CROX

    Crocs shares rose 25.7% on 2026-10-29 after third-quarter revenue grew 4.6% and operating margin expanded to 28.0%, with guidance raised for the third time this year on HEYDUDE's return to growth.

  12. ADT shares jump 33.9% after Thrive Holdings agrees to take it private

    Big moves ADT

    ADT shares jumped 33.9% on 29 October 2026 after the home-security company agreed to be acquired by Thrive Holdings for $10.00 a share in cash, a deal confirmed in an 8-K filing the same day and valuing ADT at $15.3 billion including debt.

  13. Why Applied Industrial Technologies shares fell 7.1% on Tuesday

    Big moves AIT

    Applied Industrial Technologies fell 7.1% after reporting fiscal first-quarter results. The release raised EPS guidance, while sales and EBITDA margin guidance stayed unchanged, leaving the market’s reason for the decline unconfirmed.

  14. Why Boeing shares fell 9.0% on Tuesday

    Big moves BA

    Boeing’s quarterly results offer the clearest explanation for the fall: an improving headline loss sat alongside continuing pressure in commercial aircraft, including higher projected production costs.

  15. Why Booz Allen Hamilton shares jumped 8.1% on Monday

    Big moves BAH

    Booz Allen Hamilton shares rose 8.1% on Monday, two sessions after a profit beat and raised earnings guidance that followed a revenue decline. Volume was thin, and no new disclosure accompanied the rally, leaving the exact trigger unconfirmed.

  16. Why Welltower shares fell 6.0% today

    Big moves WELL

    Welltower fell 6.0% after its quarterly results and higher full-year guidance. The clearest explanation is unidentified: earlier reports described mixed reactions to the release.

  17. Why Custom Truck One Source shares jumped 13.9% today

    Big moves CTOS

    Custom Truck One Source shares jumped 13.9% on Tuesday after the company raised its full-year earnings guidance for the third time this year and cut net leverage to 3.7 times, even as quarterly revenue missed forecasts according to a report.

  18. Why Lincoln Electric shares jumped 8.4% on Tuesday

    Big moves LECO

    Lincoln Electric shares rose 8.4% on 27 October after third-quarter results topped revenue and profit expectations, the sharpest gain of this kind in more than a year, on lighter than usual trading.

  19. Why Asbury Automotive shares rose 10.4% on Tuesday

    Big moves ABG

    Asbury Automotive shares rose 10.4% on 27 October even though third-quarter earnings and revenue came in below analyst estimates. The clearest positive in the release was a completed dealer-system rollout and margin gains at its longest-converted stores.

  20. Why Armstrong World shares fell 6.9% on Tuesday

    Big moves AWI

    Armstrong World fell 6.9% after reporting third-quarter growth alongside cost pressures and a lower adjusted EBITDA margin. The results offer a plausible catalyst, though no source confirms the market’s reason.

  21. Why Herc Holdings shares rose 14.7% today

    Big moves HRI

    Herc’s quarterly release pointed to stronger rental demand and raised full-year guidance. The shares’ move was confirmed, but the evidence does not prove which disclosure drove it.

  22. Why SoFi shares rose 13.7% today

    Big moves SOFI

    SoFi’s results and higher guidance are the clearest explanation for the move. The company reported record third-quarter revenue and raised its outlook; the share rise was far larger than its usual daily move.

  23. Why Pentair shares rose 12.0% on Tuesday

    Big moves PNR

    Pentair reported third-quarter results before the session. A reported earnings beat and steadier guidance offer the clearest explanation for the rise, although sales, adjusted earnings and free cash flow weakened.

  24. Why Clearwater Paper shares fell 19.9% today

    Big moves CLW

    A sharp fall followed third-quarter results that showed lower sales and an Augusta mill disruption continuing into October, despite higher adjusted EBITDA and improved selling prices.

  25. Why Hawkins shares jumped 13.5% on Tuesday

    Big moves HWKN

    Hawkins’ fiscal second-quarter results offer the clearest explanation: record sales and earnings, though the filing also flags costs that could temper the trend.

  26. Why SunCoke Energy shares rose 12.3% on Tuesday

    Big moves SXC

    SunCoke’s third-quarter release raised its full-year outlook, with management expecting adjusted EBITDA to modestly exceed the high end of its guidance range. The shares rose 12.3%.

  27. Why UniFirst shares fell 15.4% on Tuesday

    Big moves UNF

    UniFirst’s sharp fall has no identified catalyst in the available company news. The move was far larger than its usual daily change, while recent cash-flow and margin trends were weak.

  28. Why Xylem shares fell 8.2% on Tuesday

    Big moves XYL

    Xylem cut its 2026 revenue and adjusted earnings outlook after reporting lower third-quarter revenue. The results are the clearest explanation for the confirmed fall in its shares.

  29. Why Fair Isaac shares fell 13.2% on Monday

    Big moves FICO

    Fair Isaac shares fell 13.2% on 26 October after the company said it would hold its wholesale mortgage credit-score price at $10, a decision reports tied directly to the drop.

  30. Why Range Resources shares jumped 17.7% on Monday

    Big moves RRC

    Range Resources rose 17.7% after EQT agreed to acquire it in an all-stock merger confirmed in a same-day SEC filing. The move dwarfs Range's typical daily swing and arrived on volume far above normal.