Ackman's Pershing Square snapped up Domino's Pizza stock last year, and plowed about $2 billion into its portfolio holdings in the spring of 2020.
### Instruction: What is the sentiment of this news? Please choose an answer from {negative/neutral/positive}
### Input: Ackman's Pershing Square snapped up Domino's Pizza stock last year, and plowed about $2 billion into its portfolio holdings in the spring of 2020.
### Response: mildly positive