Fastly is trading 6.02% lower at $24.51, primarily as broader risk-off sentiment pressures shares. - The Nasdaq Composite is down 0.80%, Treasury yields are elevated, and oil prices are rising. - Fastly surged 14.92% on September 21 after launching AI security capabilities. Available coverage characterized the September 22 pullback as profit-taking after that rally. - No new company announcement directly explains the September 23 decline.