Marvell Technology is trading at $21.43, up 6.41%, with the October 6 Investor Day appearing to be the key catalyst. - It raised its fiscal 2028 revenue target to $20 billion and forecast $70 billion–$90 billion in fiscal 2031 revenue. - Analysts responded with higher price targets; TD Cowen upgraded the stock to Buy. - The gain stands out against October 7’s weaker market and semiconductor backdrop; broad-market strength does not explain the move.