undamentalytics Newsletter

Big moves

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

  1. Why Rexford Industrial shares jumped 6.7% on Friday

    Big moves REXR

    Rexford filed third-quarter results the day before its shares rose. The move was unusually large, while the company’s latest available operating data showed slowing revenue growth.

  2. Why Maplebear shares rose 9.2% on Friday

    Big moves CART

    Maplebear shares rose 9.2% on Friday, but available reporting does not identify a specific catalyst. The move was unusually large against the stock’s recent trading and the wider market.

  3. Why Schlumberger shares jumped 7.1% on Friday

    Big moves SLB

    Schlumberger's stock rose sharply the day the company reported third-quarter results showing broad sequential growth and a strengthened 2027 outlook, even as year-on-year profitability slipped.

  4. Why Weatherford shares jumped 8.1% on Friday

    Big moves WFRD

    Weatherford’s quarterly release reported stronger sequential earnings and cash flow, alongside weaker year-on-year revenue. The move was unusually large for the stock, though trading volume was below its recent average.

  5. Why AT&T shares fell 8.0% on Friday

    Big moves T

    AT&T's shares dropped 8.0% after its quarterly filing showed a GAAP earnings slump from a large impairment charge, with free cash flow falling at a slower pace than profit.

  6. Why Crown Castle shares jumped 9.1% on Friday

    Big moves CCI

    Crown Castle’s 8-K reported third-quarter results and a higher full-year outlook. The filing gives investors company-confirmed news to assess alongside a large, high-volume move.

  7. Why Gentex shares fell 6.7% on Friday

    Big moves GNTX

    Three reports pointed to Gentex’s third-quarter results, including a report that earnings and revenue missed estimates. The company had not confirmed that explanation in an SEC filing by publication.

  8. Why SS&C shares fell 7.3% on 23 October

    Big moves SSNC

    SS&C reported higher quarterly revenue and adjusted earnings, but its guidance and a refinancing milestone were also in focus after shares fell sharply.

  9. Why T-Mobile shares fell 7.7% on Friday

    Big moves TMUS

    Reports pointed to SpaceX’s wireless plans as a possible source of pressure, but T-Mobile has not confirmed a cause. The fall was unusually large against the stock’s recent moves.

  10. Why Weatherford shares jumped 8.2% on Friday

    Big moves WFRD

    Weatherford’s third-quarter release reported sequential growth in operating income and cash flow, while revenue remained lower year on year. The move was much larger than its usual daily change.

  11. Why SLM shares fell 10.8% on 23 October

    Big moves SLM

    Sallie Mae's shares fell 10.8% after it posted a GAAP net loss and cut its full-year earnings guidance, citing credit costs tied to record loan originations and third-party debt-collection problems.

  12. Why UWM Holdings shares jumped 26.1% on Friday

    Big moves UWMC

    UWM Holdings shares rose 26.1% on 23 October after a preliminary third-quarter profit report and a debt plan covered by financial media. The company has not issued its own statement confirming the cause.

  13. Why First Industrial Realty Trust shares fell 6.9% on Thursday

    Big moves FR

    First Industrial Realty Trust shares dropped 6.9% on 22 October, a day after third-quarter results and raised guidance. Trading volume ran well above average and the move was the largest in that direction since April 2025.

  14. Why Rithm Capital shares jumped 8.2% on 23 October

    Big moves RITM

    Rithm Capital shares closed up 8.2% after third-quarter results, a move reports tied to an earnings beat but which the company has not itself confirmed as the cause.

  15. Why Carpenter Technology shares fell 20.6% on Thursday

    Big moves CRS

    Carpenter Technology shares fell 20.6% on 22 October after record first-quarter operating income was overshadowed by a swing to negative free cash flow and, according to reports, a revenue figure that missed estimates.

  16. Why Graco shares fell 15.3% on 22 October

    Big moves GGG

    Graco's stock fell 15.3% on 22 October, its biggest decline since October 2019, a day after third-quarter results. Reports link the slide to margin pressure in the results; Graco has not confirmed the cause.

  17. Why LKQ shares fell 22.5% on 23 October

    Big moves LKQ

    LKQ Corp shares dropped 22.5% on 23 October after reports linked the move to weak preliminary third-quarter results and a chief executive change, a far larger swing than the stock's typical daily move.

  18. Why Pool Corp shares jumped 14.4% on Thursday

    Big moves POOL

    Pool Corporation's shares rose 14.4% on 22 October after its 8-K confirmed third-quarter results and held full-year guidance, even as free cash flow and operating income both fell.

  19. Why MSC Industrial shares fell 15.4% on Thursday

    Big moves MSM

    MSC Industrial's shares fell 15.4% on 22 October 2026 after fiscal fourth-quarter diluted earnings per share dropped 15.8% on an impairment charge, even as net sales hit a record $1,079.2 million.

  20. Why Weatherford shares jumped 7.90% on Wednesday

    Big moves WFRD

    Weatherford’s results filing gives a clear earnings catalyst for the move. Its cash-flow and margin figures show a mixed operating picture behind the strong session.

  21. Why Mueller Industries shares fell 7.4% on Tuesday after its third-quarter results

    Big moves MLI

    Mueller fell 7.4% on 20 October after third-quarter results that showed net sales, net income and earnings per share all higher than a year earlier. Our figures through June show revenue up 14.8% and free cash flow of $666m, the trend going into this report.