US stock movers, Oct. 20, 2026

Stocks that beat or trailed the S&P 500 ETF (SPY) by at least 5 points in the session, with a filing or analyst action behind them or at least twice their normal volume. Closing prices from Yahoo Finance; a move with no cause in our data may be a data error.

StockChangevs SPYCloseVolumeWhat we found
BRZE Braze, Inc.+51.7%+51.4%$45.5735.9x normal8-K
MYGN Myriad Genetics Inc+31.6%+31.3%$5.5414.8x normal8-K
FISN Deep Fission, Inc.-23.2%-23.6%$2.815.1x normal8-K
BATL Battalion OIL Corp-18.4%-18.8%$0.824.3x normalNo cause found in our data
LION Lionsgate Studios Corp.+14.4%+14.1%$12.155.7x normalNo cause found in our data
SLS SELLAS Life Sciences Group, Inc.+14.2%+13.9%$11.982.3x normalNo cause found in our data
CTNM Contineum Therapeutics, Inc.+13.7%+13.4%$8.462.7x normalNo cause found in our data
BETR Better Home & Finance Holding Co+13.7%+13.3%$11.972.5x normalNo cause found in our data
AMPG AmpliTech Group, Inc.+12.3%+11.9%$2.653.6x normalNo cause found in our data
KVYO Klaviyo, Inc.+11.9%+11.6%$19.612.7x normalNo cause found in our data
EQPT EquipmentShare.com Inc+11.8%+11.5%$15.601.3x normalBaird note
EFX Equifax Inc+11.3%+11.0%$176.542.0x normal8-K
HAS Hasbro, Inc.+11.2%+10.9%$109.524.5x normal8-K
NESR National Energy Services Reunited Corp.+11.1%+10.8%$21.092.1x normalNo cause found in our data
RUN Sunrun Inc.+9.9%+9.5%$7.571.4x normalJP Morgan note
SPHR Sphere Entertainment Co.+9.7%+9.3%$112.842.1x normalNo cause found in our data
HBCP Home Bancorp, Inc.-9.6%-9.9%$59.472.1x normal8-K
IMCR Immunocore Holdings plc+9.3%+8.9%$32.602.3x normalNo cause found in our data
HTFL Heartflow, Inc.+9.0%+8.6%$55.592.0x normalPiper Sandler note
DPC DPC Holdings PLC-8.9%-9.3%$29.122.3x normalNo cause found in our data
OVID Ovid Therapeutics Inc.+8.8%+8.4%$2.362.6x normalNo cause found in our data
ITG ITG, Inc./DE/-8.6%-8.9%$5.106.3x normalNo cause found in our data
ANAB Anaptysbio, Inc-7.7%-8.1%$45.432.4x normalNo cause found in our data
CWST Casella Waste Systems Inc+7.5%+7.2%$93.072.5x normalNo cause found in our data
JELD JELD-WEN Holding, Inc.-7.4%-7.7%$1.251.1x normal8-K
RCUS Arcus Biosciences, Inc.+7.3%+6.9%$23.754.5x normal8-K
STOK Stoke Therapeutics, Inc.+7.2%+6.9%$26.612.7x normalNo cause found in our data
VICR Vicor Corp+7.1%+6.7%$204.142.3x normal8-K
FTH Faeth Therapeutics, Inc.+6.9%+6.6%$20.792.4x normalNo cause found in our data
GM General Motors Co-6.8%-7.2%$77.093.9x normal8-K
MLI Mueller Industries Inc-6.6%-6.9%$56.813.3x normal8-K
LBTYA Liberty Global Ltd.+6.4%+6.1%$7.981.4x normalBarclays note
DVA Davita Inc.-6.2%-6.6%$175.353.9x normalNo cause found in our data
RGR Sturm Ruger & Co Inc+6.2%+5.8%$48.743.4x normalSC TO-T/A
DCOM Dime Commercial Bancshares, Inc. /NY/+6.0%+5.6%$41.012.7x normal425, 8-K, 8-K
ASST Strive, Inc.+6.0%+5.6%$27.061.1x normal8-K
MMM 3M Co+5.8%+5.4%$171.372.8x normal10-Q, 8-K, 8-K
IT Gartner Inc+5.7%+5.4%$219.642.4x normalNo cause found in our data
LCID Lucid Group, Inc.+5.7%+5.3%$3.272.7x normalNo cause found in our data
ZYME Zymeworks Inc.+5.4%+5.0%$26.913.1x normalNo cause found in our data
GPC Genuine Parts Co-5.1%-5.5%$123.522.8x normal10-Q, 8-K