RIVN Rivian Automotive reports narrower than expected Q1 2026 loss shares rise 212 percent on upbeat investor sentiment Vanguard Total Stock Market ETF VTI A HighPriority Core Holding for LowCost Broad US Equity Exposure UZF Array shares slip 14 as quarterly earnings miss estimates by 33 MTNB Matinas posts narrower than expected Q4 2024 loss sending shares 747 percent higher in todays trading