Five Below shares rose 1.5% after hours as it raised annual revenue guidance to $4.44-4.52 billion and EPS to $4.76-5.16. Q2 revenue jumped 24% to $1.03 billion, topping estimates, with same-store sales up 12.4%. CEO Winnie Park credited simplified pricing and strong back-to-school demand. Retail sentiment on Stocktwits turned 'extremely bullish'.