Worst S&P 500 stocks in the first half of 2026.
By Vlad from Bastion on
Three dominant themes.
Software: 18 of the bottom 40. Nearly half. π§Ύ Intuit $INTU -60% π CoStar $CSGP -58% πΌ Accenture $ACN -53% π» Cognizant $CTSH -53% πΊ The Trade Desk $TTD -52% π Gartner $IT -49% π Workday $WDAY -43% βοΈ Salesforce $CRM -41% π¨ Adobe $ADBE -41%
Tax prep ($INTU), professional tools ($ADBE), CRM ($CRM), HR ($WDAY), ad-tech ($TTD), IT consulting ($ACN, $CTSH). AI agents are threatening the same workflows these companies monetize. The market is repricing the entire software layer.
MedTech & Healthcare: 6 stocks, led by $BSX -55%. π« Boston Scientific $BSX -55% π Insulet $PODD -46% πΎ Zoetis $ZTS -42% π₯ Universal Health $UHS -32% π€ Intuitive Surgical $ISRG -30% π©Ί Abbott $ABT -27%
Insulet ($PODD, insulin pumps) is the clearest GLP-1 casualty: fewer diabetics means fewer pump users. Boston Scientific dropped 55% despite strong fundamentals, a pure valuation reset after trading at 50x+ earnings. Zoetis ($ZTS, animal health) caught a downgrade cycle.
Consumer: tariffs and slowing spend. π§ Lululemon $LULU -45% π Tractor Supply $TSCO -36% π Nike $NKE -35% π Domino's $DPZ -28%
Nike and Lululemon share the same problem: global supply chains exposed to tariffs, plus slowing consumer spend in core markets. Tractor Supply ($TSCO) is a rural consumer bellwether signaling real weakness. Even Domino's ($DPZ), typically defensive, is down 28%.