Last week wasn't kind to everyone. While the broader market navigated economic uncertainty and shifting dynamics, a handful of large-cap stocks got absolutely crushed between December 1 and December 5. We're talking double-digit percentage drops driven by everything from disappointing earnings to analyst downgrades to sector-wide jitters.

So, are any of these names hiding in your portfolio?

The Biggest Losers

Symbotic Inc. (SYM) took the crown for worst performance, plummeting 28.73% as investors reacted poorly to the company's quarterly results. The warehouse automation company's guidance and margins didn't inspire confidence, and Goldman Sachs piled on by downgrading the stock to Sell while keeping its $47 price target intact. Ouch.

Pure Storage, Inc. (PSTG) wasn't far behind, shedding 20.83% after the data storage company's latest update on growth and profitability left investors wanting more. The stock pulled back sharply, and several analysts responded by revising their price forecasts downward.

Paramount Skydance Corporation (PSKY) dropped 16.57% amid continued volatility surrounding strategic developments and deal-related headlines in the media space. The entertainment industry continues to be a wild ride, and this week proved no exception.

UL Solutions Inc. (ULS) fell 16.02% under pressure from a secondary offering of 12.5 million Class A common shares priced at $78 each. Secondary offerings can dilute existing shareholders, and the market reacted accordingly.

Wayfair Inc. (W) slid 14.07% as e-commerce and discretionary retail names struggled broadly. The home goods retailer got hit particularly hard after Jefferies downgraded the stock from Buy to Hold and slapped a $94 price target on it. Consumer discretionary continues to face headwinds.

The Rest of the Pack

LyondellBasell Industries N.V. (LYB) declined 11.51% during the week, caught in broader market currents affecting chemical manufacturers.

Talen Energy Corp (TLN) fell 10.15%, rounding out the double-digit losers for the week.

Snowflake Inc. (SNOW) dropped 8.94% as investor concerns mounted following the cloud data company's latest results and outlook. Like Pure Storage, Snowflake saw multiple analysts revise their price forecasts downward in response to the update.

Block, Inc. (XYZ) fell 8.52% amid broader weakness in fintech names ahead of the company's presentation at the UBS Global Technology and AI Conference. Sometimes the anticipation is worse than the event itself.

XPeng Inc. (XPEV) rounded out the top ten losers with an 8.38% decline after the Chinese EV maker reported its latest vehicle delivery numbers, which apparently failed to impress investors.

What It Means

These losses tell a story about how quickly sentiment can shift. Company-specific catalysts like earnings misses and analyst downgrades combined with broader industry trends to create a perfect storm for these stocks. Whether you're holding any of these names or just watching from the sidelines, last week served as a reminder that even large-cap stocks aren't immune to sharp corrections when the news turns south.

The question now is whether these drops represent buying opportunities or warning signs of deeper problems ahead. That answer, as always, depends on your time horizon and risk tolerance.