Archer Aviation got hit with multiple bearish catalysts last year, but a big trend is lifting the stock in 2026.Archer Aviation (ACHR +0.00%) stock lost altitude across 2025's trading despite a bullish backdrop for the broader market. The electric-vertical-take-off-and-landing (eVTOL) company's share price declined 22.9% last year, according to data from S&P Global Market Intelligence. Meanwhile, the S&P 500 rose 16.4%, and the Nasdaq Composite jumped 20.4%. Archer Aviation's valuation moved lower last year ...