S&T Bancorp (STBA) is a financial holding company headquartered in Indiana, Pennsylvania. It provides a full range of financial services to individuals and businesses. On 5 June 2019, S&T Bancorp announced a merger with DNB Financial Corporation (DNBF) pursuant to which S&T will acquire DNB in an all stock transaction. The below chart from Raltin’s Options analytics indicates that the implied volatility (IV) for the 30 Day At The Money (ATM) call is 37% near its 52 week high of 38%. The ATM straddle premium of 9.23% is also close to yearly high of 10.04%. The put call ratio (based on open interest) has shot up to 320. STBA is estimated to report interim earnings on 17-19 July 2019.