
Trading platform Interactive Brokers' IBKR.O shares rise 4.5% to $65.59 in extended trading
IBKR will replace Walgreens Boots Alliance WBA.O in the benchmark S&P 500 index .SPX, effective prior to opening of trading on August 28
Walgreens is set to be taken private by buyout firm Sycamore Partners, with the deal expected to close later this week
Meanwhile, power producer and energy infrastructure company Talen Energy TLN.O will replace IBKR in the S&P MidCap 400 index, effective prior to opening of trading on August 28
Talen Energy's shares up 4.6% at $372
Also, midstream operator Kinetik KNTK.N will join the S&P SmallCap 600 index, effective prior to opening of trading on September 2
Kinetik's shares up 5.9% at $43.03