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Dec 21, 2025 12:00 PM

Rivian, Sandisk, And Moderna Are Among the Top 10 Large-Cap Gainers Last Week (Dec. 15-Dec. 19): Are the Others in Your Portfolio?

These ten large-cap stocks were top performers last week. Are they a part of your portfolio?

Rivian Automotive, Inc. (NASDAQ:RIVN) gained 20.57% this week afterthe company said it is expanding hands-free assisted driving and rolling out new software updates that give drivers more control, customization across Gen 1 and Gen 2 vehicles. Also, multiple analysts raised their price forecast on the stock.

Sandisk Corporation (NASDAQ:SNDK) gained 10.57% this week in sympathy with Micron Technology, Inc. (NASDAQ:MU), which beat first-quarter estimates and issued strong guidance.

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