Not every stock can end the week in the green, and last week's large-cap laggards offered a masterclass in how quickly momentum can shift. The top ten losers for the week of December 29 through January 2 featured a mix of high-flying tech stocks taking a breather and operationally challenged names facing headwinds.

Leading the Declines

AppLovin Corporation (APP) led the pack with a 15.29% decline for the week. Close behind was Regencell Bioscience Holdings Limited (RGC), which shed 14.79%. Both stocks had experienced substantial runs prior to the pullback, making these declines more of a cooling-off period than a fundamental reversal.

Palantir Technologies Inc. (PLTR) dropped 13.93% for the week, though it's worth keeping perspective here. The data analytics giant is still up roughly 134% over the past year and carries a market value around $425 billion. Its 52-week range spans from approximately $63.40 to $207.52. The weakness appears to be profit-taking after a strong 2025 start rather than any company-specific concerns.

Tesla's Delivery Miss

Tesla, Inc. (TSLA) fell 9.68% during the week after wrapping up 2025 with numbers that told a mixed story. The electric vehicle maker produced 434,358 vehicles and delivered 418,227 vehicles in the fourth quarter. While that represents solid operational execution, it fell short of the Visible Alpha delivery estimate of 434,487 units.

Tesla did post record energy storage deployments, but mounting pressure in European markets is creating a counterweight to its otherwise strong operational finish. The delivery miss and regional headwinds were enough to send shares lower despite the company's overall production achievements.

The Rest of the List

SailPoint, Inc. (SAIL) slumped 10.02% for the week, marking the steepest decline outside the top three. Carvana Co. (CVNA) decreased 9.44%, continuing its volatile trading pattern as the online used car retailer navigates a challenging consumer environment.

Guidewire Software, Inc. (GWRE) fell 9.30%, while Harmony Gold Mining Company Limited (HMY) decreased 8.96% as gold prices consolidated. QXO, Inc. (QXO) dropped 8.79%, and Medline Inc. (MDLN) rounded out the list with an 8.7% decline for the week.

These weekly moves serve as a reminder that even large-cap stocks can experience significant volatility over short periods, particularly when they've had strong prior runs or face near-term operational challenges. For investors holding these names, the question becomes whether these declines represent buying opportunities or warning signs of further weakness ahead.