What to do After Sandisk, Moderna, and Carnival Soared

Momentum traders who seek fast-moving stocks have three to look at.

Sandisk (SNDK) gained 15.2% in the last week. It trades at the top end of its $200 - $240 trading range that began in mid-November. Technology investors are betting that the severe shortage of NAND, used for storage, and DRAM, used in memory, will lift Sandisk’s profit margins.

Sandisk benefits from the historic upcycle for DRAM and NAND TLC spot prices. PC makers, for example, had to pay around 300% more for memory modules in October and November.

In the vaccine market, Moderna (MRNA) continued its breakout to close at $33.80, up by 9.2% on December 19. The Coalition for Epidemic Preparedness Innovations (CEPI), which is a global partnership supporting vaccine studies, will invest up to $54.3 million in Moderna’s study. The firm has an experimental bird flu shot in Phase 3 pivotal trials.

MRNA stock trades as if a buyer might consider bidding for the firm.

Carnival (CCL) jumped by 9.81% last Friday to close at $31.12. The cruise ship firm posted occupancy rates of 102%, while passengers carried fell by 13% Q/Q. The onboard spending and close-in demand are accelerating. In 2026, the firm expects the positive momentum to continue.

Carnival benefits from revenue managers creating strong brand awareness, which increases ship booking volumes.

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