Stock Market Today: Nasdaq, S&P Reverse Slightly Higher; Sandisk, Lumentum Lead This Tech Rally — Live Feedhttps://www.live-feeds.com/feed/stock-market-today-nasdaq-s-p-reverse-slightly-higher-sandisk-lumentum-lead-this-tech-rallyContinuously updated, source-cited coverage. Nasdaq and S&P Reverse Higher as Tech Rally Led by Sandisk and Lumentumhttps://www.live-feeds.com/feed/stock-market-today-nasdaq-s-p-reverse-slightly-higher-sandisk-lumentum-lead-this-tech-rallyhttps://www.live-feeds.com/feed/stock-market-today-nasdaq-s-p-reverse-slightly-higher-sandisk-lumentum-lead-this-tech-rally#u78677Mon, 21 Sep 2026 13:21:12 +0000The Nasdaq and S&P reversed slightly higher, driven by a technology sector rally led by Sandisk and Lumentum. The positive movement follows a post-Fed market bounce, though broader Wall Street trading remains tepid amid falling oil prices and rising Treasury yields. Meanwhile, the Dow recently dropped to its record worst week in six months, marking its third consecutive weekly decline, as inflation trepidation offsets ongoing artificial intelligence optimism. Netflix shares also experienced a sharp drop during the session.Why it mattersMarket participants are weighing persistent inflation