Investors in SPDR Series Trust - SPDR S&P 400 Mid Cap Value ETF (MDYV) saw new options begin trading today, for the August 2025 expiration. One of the key data points that goes into the price an option buyer is willing to pay, is the time value, so with 239 days until expiration the newly trading contracts represent a possible opportunity for sellers of puts or calls to achieve a higher premium than would be available for the contracts with a closer expiration..