Marvell Technology and Flex slated for S&P 500 inclusion; additional firms to enter MidCap 400 and SmallCap 600

Marvell Technology and Flex have been announced for addition to the S&P 500 index. Their inclusion reflects recent growth and market capitalization gains. The move will adjust the index composition at the next quarterly rebalancing. Several other companies are slated to join the S&P MidCap 400. Additional firms will also be added to the S&P SmallCap 600. Index managers said the changes aim to keep the benchmarks representative. Investors may see fund flows shift as index-tracking products adjust holdings. The updates will take effect on the scheduled rebalancing date.