The strongest evidence comes from Reuters, which directly states in 'S&P 500 closes at fresh record, recovering all losses since start of US-Iran war | Reuters' that the S&P 500 closed at a new record high on April 15, 2026. That substantively supports the first half of the post. For the second half, 'Stock market today: Dow, S&P 500, Nasdaq edge higher as Trump says Iran wants to talk, US blockades Hormuz' from Yahoo Finance explicitly references the March 30 low as the pullback bottom and discusses the subsequent rebound, which aligns with the post's framing. However, the exact numerical claim of '11%' is not directly and cleanly confirmed in the fetched excerpts I obtained, so I cannot rate the claim as fully verified with high confidence. Still, the available evidence overall points in the same direction rather than contradicting it.