Implied Volatility Surging for Theravance Biopharma (TBPH) Stock Options Posted byZacks Equity Research December 20, 2021 Leave a comment on Implied Volatility Surging for Theravance Biopharma (TBPH) Stock Options Investors need to pay close attention to Theravance Biopharma (TBPH) stock based on the movements in the options market lately.