ATRA Atara shares plunge 16 as Q4 loss widens missing estimates by 43 iShares 20 Year Treasury Bond ETF TLT Market Analysis Report SBUX Starbucks Corporation Q1 2026 earnings show 28 percent revenue growth but miss EPS estimates stock dips slightly Cartesian Therapeutics RNAC Stock Abandons Cartesian Therapeutics RNAC Stock Eye on Rally 20260418