Investors in Vanguard Scottsdale Funds - Vanguard Long-Term Corporate Bond ETF (VCLT) saw new options become available this week, for the September 19th 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 240 days until expiration the newly available 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..