Last week was rough for some of the market's larger names, and if you held any of these ten large-cap stocks, you probably noticed. A combination of analyst downgrades, management shake-ups, and company-specific headwinds sent these names tumbling. Here's what happened.

Solar Gets Cloudy

First Solar, Inc. (FSLR) had the worst week of the bunch, plunging 14.46%. Jefferies downgraded the stock from Buy to Hold and lowered its price target from $269 to $260, which didn't exactly inspire confidence. When one of your bigger supporters backs off, the market tends to notice.

Pharma and Tech Take Hits

Madrigal Pharmaceuticals, Inc. (MDGL) lost 11.57% this week, sliding into the red without a clear single catalyst making headlines. Sometimes the market just decides it's time to sell.

Astera Labs, Inc. (ALAB) wasn't far behind, dropping 12.18% in what turned into a painful week for the tech-focused company. No specific news drove the decline, but the selling was real enough.

Leadership Changes Spook Investors

American International Group, Inc. (AIG) fell 10.05% after announcing that CEO Peter Zaffino plans to retire from his role by mid-2026. Leadership transitions at major companies always create uncertainty, and the market priced that in quickly. Barclays analyst Alex Scott maintained an Equal-Weight rating but lowered the price forecast from $88 to $81.

NRG Energy, Inc. (NRG) slumped 8.93% following its own management shuffle. The company appointed Robert J. Gaudette as CEO effective April 30, while President Lawrence Coben stepped down immediately. Antonio Carrillo was named board chair, also effective April 30. Multiple changes at once can make investors nervous about what's happening behind the scenes.

Real Estate and Gaming Under Pressure

CoStar Group, Inc. (CSGP) dropped 10.68% as multiple analysts lowered their price forecasts on the stock. When the analyst community starts trimming expectations in unison, it's usually not a great sign for near-term performance.

Roblox Corporation (RBLX) decreased 9.99% this week. Adding some context, Super League Enterprise Inc. (SLE), which partners with Roblox, acquired marketing technology firm Let's Bounce to strengthen measurable advertising inside gaming and user-generated content platforms. Meanwhile, Wells Fargo analyst Ken Gawrelski slashed the price forecast from $141 to $107, a significant haircut that reflected growing concerns about the company's trajectory.

Industrials and Casinos Round Out the List

Johnson Controls International (JCI) slumped 9.88% this week. Interestingly, Barclays analyst Julian Mitchell maintained an Equal-Weight rating and actually raised the price forecast from $119 to $125, suggesting the selloff might have been more about broader market dynamics than company fundamentals.

Las Vegas Sands Corp. (LVS) fell 9.57% without any major news catalyst driving the decline. Sometimes casino stocks just have bad weeks, especially when macro concerns about consumer spending start creeping in.

Finally, HDFC Bank Limited (HDB) rounded out the list with a 5.44% decline, the smallest loss among these ten large-cap laggards but still a notable drop for a major financial institution.

The common thread? Whether it was analyst downgrades, leadership transitions, or just general market malaise, these large-cap names all had weeks they'd rather forget. For investors holding any of these positions, the question now is whether these drops represent buying opportunities or signs of deeper trouble ahead.