Align Technology stock surged 13% in overnight trading. The medical device firm's Q4 revenue grew 5.3% yr/yr, beating analyst expectations. Adjusted EPS for Q4 beat analyst expectations. Company repurchased 0.7 mln shares, completing $200 mln buyback plan.

Shares of e.l.f. Beauty rose 5% in overnight trading after the cosmetics maker boosted its full-year outlook, as shoppers continue to seek out lower-priced cosmetics and as its acquisition of Hailey Bieber's minimalist beauty and skincare brand Rhode shows signs of paying off.

Snap beat Wall Street estimates for fourth-quarter revenue, as more advertisers turned to the social media platform during the holiday season, sending its shares up 3% in overnight trading.

Fluence Energy Inc. (NASDAQ: FLNC) shares plummeted 7% in overnight trading. The sharp decline came after Fluence Energy reported a quarterly loss of $0.34 per share, which significantly missed analyst consensus estimates that ranged from a loss of $0.17 to $0.23 per share. The company's adjusted EBITDA of negative $52.1 million also fell short of the estimated negative $31.7 million, while net loss reached $62.6 million for the quarter.

Alphabet said on Wednesday that capital expenditure could as much as double this year, in yet another aggressive spending ramp-up by the Google parent as it deepens investments to push ahead in the AI race. Shares fell 0.6% in overnight trading.