Lululemon shares tumble 20% as it cuts full-year guidance, citing 'dynamic macroenvironment'
1. Lululemon beat earnings expectations but cut full-year guidance significantly. 2. Shares plummeted approximately 20% in extended trading after guidance cut. 3. Company reported net income of $314 million, slightly lower than last year. 4. Comparable sales rose only 1%, below Wall Street's 3% expectations. 5. Tariff fears and slower economy concerns impact Lululemon's outlook.