8.7% drop in Comfort Systems USA's short interest, stock rises on strong Q3 results and upgrade from StockNews.com.

Comfort Systems USA saw an 8.7% drop in short interest, totaling 442,900 shares as of September 30, 2021. The company's stock rose $4.57 to $419.25 following strong quarterly results, reporting $3.74 EPS and $1.81 billion in revenue, exceeding expectations. Institutions own 96.51% of its stock. StockNews.com upgraded the company from "hold" to "buy," and a quarterly dividend of $0.30 was recently paid to shareholders.