Marvell to Join S&P 500; Historical Data Shows Early Gains Followed by Underperformance
Marvell Technology (MRVL) rose about 13% after being added to the S&P 500, but historical data suggests stocks often outperform before inclusion and underperform afterward. Yahoo Finance analysis shows median returns for scheduled additions beat the index by 3.3% in the weeks leading up to entry, then trail it significantly over subsequent quarters.
Topics: index funds Marvell Technology S&P 500 stock performance