https://www.live-feeds.com/feed/the-bull-market-turned-4-years-old-on-monday-investors-say-reaching-a-fifth-birthday-could-be-challengingContinuously updated, source-cited coverage. https://www.live-feeds.com/feed/the-bull-market-turned-4-years-old-on-monday-investors-say-reaching-a-fifth-birthday-could-be-challenginghttps://www.live-feeds.com/feed/the-bull-market-turned-4-years-old-on-monday-investors-say-reaching-a-fifth-birthday-could-be-challenging#u124801Fri, 16 Oct 2026 03:05:31 +0000The S&P 500 bull market turned four years old on Monday, having climbed nearly 120% since its closing low on October 12, 2022. Investors are now questioning whether the market can sustain its gains and reach a fifth birthday. The bull run has been driven largely by artificial intelligence enthusiasm, with Nvidia being a key beneficiary. However, analysts debate the sustainability of further gains.Why it mattersThe current bull market began after the S&P 500 hit a closing low on October 12, 2022. Since then, it has experienced a significant surge, driven primarily by the growing interes