** Dutch Bros BROS.N shares up 5.1% premarket to $60.75 as coffee chain firm poised to join S&P MidCap 400 index .IDX next week

** BROS to replace PotlatchDeltic PCH.O in IDX effective Mon, Feb 2, S&P Dow Jones Indices announced late Tues

** Rayonier Inc RYN.N set to merge with timber REIT PotlatchDeltic

** Stephens analyst Melissa Roberts said in a note she anticipates passive funds will need to purchase ~15.4 mln BROS shares, which implies 5 days of buying demand

** Tempe, Arizona-based co has ~164.5 mln shares outstanding for $9.5 bln market cap

** Through Tues, shares down ~6% to begin 2026 after 17% gain last year

** 19 of 21 analysts rate the stock "strong buy" or "buy", 2 "hold"; median PT $75.50, per LSEG data

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

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