Stock options are a distinct asset from actual shares of stock. Simplifi does not currently support options and instead (for at least some integrations) pulls in options as actual shares.
At a minimum, SImplifi should be able to track stock options in accounts. These options must have 1) A strike price 2) an expiration date. These should be displayed separately from shares of stocks.
For tracking potential value of unvested but granted options, vesting date would be a nice to have but isn't required for a first pass.
This was also mentioned in this thread.