** Generic drugmaker Lannett LCI.N down ~7%, while oil
refiner HollyFrontier Corp HFC.N off ~2% premarket, after S&P
Dow Jones announces index changes
** Organon & Co OGN.N OGN_w.N to be added to S&P 500
.SPX prior to open of trading on Thurs, June 3, as part of its
spin-off by Merck MRK.N urn:newsml:reuters.com:*:nPn5fJGtTa
** MRK will remain in S&P 500 and 100 indices
** In turn, HFC will move to S&P Midcap 400 .IDX prior to
open of trading on Fri, June 4
** Then, Service Properties Trust SVC.O is joining S&P
SmallCap 600 index .SPCY . Hospitality REIT's shares up 5%
before the bell
** As such, LCI to exit SPCY, as S&P Dow Jones says co "no
longer representative of the small-cap market space"
(Lance Tupper is a Reuters market analyst. The views expressed
are his own)
((lance.tupper.tr.com@reuters.net
lance.tupper@tr.com 1-332-219-1430))