** Red Rock Resorts RRR.O shares up 4.1% at $57.49 premarket as casino and gaming firm set to join S&P SmallCap 600 index .SPCY next week

** Las Vegas-based RRR to replace Sterling Infrastructure STRL.O in SPCY effective before the bell on Nov 13, the S&P Dow Jones Indices said late Thurs

** Texas-based construction co STRL moving to S&P MidCap 400 .IDX, replacing Light & Wonder LNW.O, which is expected to delist from Nasdaq and keep primary listing in Australia, S&P Dow Jones said

** STRL shares down 2.8% premarket at $377.93. Through Thurs close, stock up ~131% YTD

** RRR has ~105.4 mln shares outstanding for about $5.8 bln market cap

** Through Thurs close, RRR shares up 22% YTD

** 11 of 13 analysts rate RRR stock "strong buy" or "buy", 2 rate "hold" and median PT is $67.50, per LSEG data

(Lance Tupper is a Reuters market analyst. The views expressed are his own)

((lance.tupper@tr.com 1-646-279-6380))