The unit values reflect how much a unit in each Passport Fund is worth in a specific month; these values fluctuate from month to month. Therefore, your fund account balance(s) would also vary each month. If unit values go up, your units would be worth more, and your account would generally increase. If unit values go down, your units would be worth less, and your account would generally decrease.

Here's a simplified example: If you invest $100 in March and the unit value is $25, you have purchased 4 units. If the unit value increases to $26 in April, those 4 units would now be worth $104. Keep in mind that additional contributions, loans, and other account activity would also affect the number of units and your account balances. In addition, TRS increases the number of units slightly each month.