Group 1 - Comfort Systems (NYSE:FIX) has been selected for inclusion in the S&P 500 index, effective before the market opens on December 22, replacing LKQ Corp., Mohawk Industries Inc., and Solstice Advanced Materials Inc. [1] - The stock price of Comfort Systems tends to rise leading up to the S&P inclusion, although interest may wane post-inclusion, as noted by market strategist Matt Maley [2] - Following a third-quarter earnings beat on October 24, Comfort Systems received upgrades from UBS and Stifel, resulting in a consensus buy rating with a median price target indicating a 15.21% upside from current levels [3] Group 2 - Comfort Systems USA, Inc. provides mechanical and electrical installation, maintenance, replacement, renovation, and repair services, operating through Electrical and Mechanical segments, and specializes in ventilation, air conditioning, and heating systems [4]