The unrealized gains/losses of all open holdings during the reporting period based ont he report's Beginning Market Value. For purchases made during the reporting period, the unrealized gain/loss is based on cost basis of those purchases.
Calculation Notes:
Holdings purchased within the reporting period: Market Value on Report End Date - Buy Amount = Period Unrealized Gain/Loss.
Holdings purchased prior to the reporting period: Market Value on Report End Date - Beginning Market Value on report Start Date = Period Unrealized Gain/Loss.