The strongest evidence is the validated Reuters article, "VIEW S&P 500, Nasdaq notch fresh records, casting aside war fears | Reuters," which explicitly says the Nasdaq rose 1.6% on April 15, 2026 and hit a fresh record close, with both the Nasdaq and S&P 500 also reaching intraday records. That directly supports the statement that the Nasdaq closed at a fresh all-time high. Corroborating search results from CNBC and CNN are consistent with Reuters, and X search results also echo the same figures. The only limitation is that the original supplied X URLs could not be fetched directly in this run.