Shares of PacWest Bancorp slid in premarket trade on Thursday, dragging other regional lenders down, as news that the Los Angeles-based bank was in talks about strategic options spurred market fears of a worsening financial crisis. PacWest slumped 38 percent, after having lost 29 percent since Monday. Reuters had reported on Wednesday that PacWest was exploring strategic options including a … Continue reading PacWest, Western Alliance stocks tumble as US banking concerns deepen