iPath Series B SP 500 VIX ShortTerm Futures ETN VXX Tactical Volatility Exposure Emerges as Critical Hedge Amid Mounting Geopolitical and Macro Risks JBI Janus Q4 2025 EPS lands 106 percent below estimates shares gain 433 percent today What affects John HTD stock price Why Amplitude AMPL ability to generate cash matters Crashes 20260508