Cathie Wood is a growth investor, but it's not always a "buy high, sell higher" mindset for the co-founder, CEO, and money manager for the Ark Invest family of aggressive growth exchange-traded funds. She often finds herself buying the dip when some of her positions fall out of favor.

Shares of Toast (NYSE: TOST), Ginkgo Bioworks (NYSE: DNA), and Robinhood Markets (NASDAQ: HOOD) tumbled 14%, 3%, and 14% respectively on Wednesday. She still added to all three holdings. Let's take a closer look.

Wood was adding to her Toast position on Monday, the day before it posted its third-quarter results. After the seeing the shares shoot higher after its second-quarter update in August, she was probably banking on another well-received performance for the provider of payments processing and other tech solutions for the restaurant industry. It proved to be more a case of indigestion than a savory course.

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Source Fool.com