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{"created_at":"2026-04-21T21:31:18.735 {"created_at":"2026-04-21T21:31:18.735453+00:00","signal_type":"discovery_unusual_volume_delta","source":"discovery_ingestor","url":"https://www.nasdaq.com/articles/why-aerovironment-stock-jumped-today","value":{"fp":"c7c5525713ca9ee5","kind":"unusual_volume","published_at":"2026-04-21T20:46:11+00:00","source":"Nasdaq Markets","summary":"Key PointsAeroVironment achieved a major milestone in directed energy systems.","tickers":[],"title":"Why AeroVironment Stock Jumped Today","url":"https://www.nasdaq.com/articles/why-aerovironment-stock-jumped-today"}}... |