AMPH Q1 2026 Earnings EPS Misses Estimates as Amphastar Faces Operational Pressures DHCNL Q1 2026 Earnings EPS Misses Estimates Amid Continued Operational Headwinds Vistagen Therapeutics Q1 2026 Earnings Narrower Loss Than Expected Boosts Investor Sentiment MTDR Q1 2026 Earnings Strong Earnings Beat Offsets Market Caution HQI Q1 2026 Earnings EPS Slightly Misses Estimates Stock Declines ARM Q1 2026 Earnings EPS Beat Amidst Revenue Discrepancy Uncertainty