What is the sentiment of this news? Please choose an answer from {strong negative/moderately negative/mildly negative/neutral/mildly positive/moderately positive/strong positive}.

Cathie Wood-led Ark Investment Management bought over 55,000 shares of automatic test equipment designer Teradyne, Inc. (NASDAQ: TER) at a valuation of over $4.8 million, based on Monday's closing price.
moderately positive