Cathie Wood bought shares of AMD, Toast, and Shopify on Tuesday. AMD hit a new 52-week low after posting mixed quarterly results last week. Toast shares have soared 108% over the past year, and the eatery tech specialist has a critical earnings report on the menu for next week.

Cathie Wood, head of Ark Investment Management, is known for making bold bets — but she’s not afraid to change course when the market proves her wrong. That’s what she did this week. She unloaded a tech stock that tumbled nearly 50% last year.