Monday's stock market session delivered notable moves across the S&P 500, with digital marketing leader Applovin surging 5.8% to claim top performer status. However, TTD (The Trade Desk), the programmatic advertising platform, faced headwinds and became the index's worst performer, declining 4.7% in early trading.

For investors tracking TTD value, the decline marks a continuation of weakness, with the stock down roughly 8.3% year-to-date. Meanwhile, Applovin's recent bounce offers little reassurance given its steep 17.7% loss since the start of the year. Beyond this main list of movers, semiconductor giant Intel dropped 4.2%, while networking specialist Arista Networks climbed 5.2%, highlighting the mixed sentiment across the technology sector during the session.

The divergent performances underscore the shifting landscape in digital advertising and enterprise technology—sectors where investor sentiment remains fluid and individual stock valuations continue to experience significant volatility.