Ed Yardeni raised Yardeni Research's year-end 2026 S&P 500 target to 8,400 from 8,250 and lifted its 2026 earnings-per-share forecast to $375 from $330 and its 2027 estimate to $415 from $375, while Citi said on Aug. 14 that it raised its 2026 EPS view to $365 from $350 but kept its 8,100 year-end target. Both firms said second-quarter results showed further room for revenue and margin gains, arguing that the rally is being supported increasingly by earnings upgrades rather than only by richer valuations. Yardeni, now back at the top of Wall Street's 2026 target table, maintained a 10,000 S&P 500 target for the end of 2029, assigned an 80% probability to its "Roaring 2020s" scenario and said any pullback, even a meltdown, would be a buying opportunity rather than a 1999-2000-style collapse. Citi's equity strategy team led by Scott Chronert said AI-related revenue across infrastructure, semiconductors, cloud services and the power supply chain remains central to sustaining elevated valuations, while improving earnings breadth could reduce the market's dependence on a small group of technology giants.