Why do some portfolio metrics show "—" instead of a percentage?

Some percentage-based metrics — such as Unrealized gain % and Annualized yield — divide a profit or loss amount by the amount you invested. If a position or portfolio has no invested amount, there's nothing to divide by, so these metrics show "—" instead of a percentage. Dollar-amount metrics, like Unrealized gain, are still calculated and displayed as usual.

When does this happen?

This shows up for a position or portfolio built entirely from reward transactions — assets added to your portfolio at zero cost, such as gifted shares or employer stock rewards. Since a reward transaction sets the position's cost basis to 0, there's no invested amount to measure a percentage return against.

Does this affect the whole portfolio?

Only if every open position in the portfolio was added exclusively through reward transactions. As soon as you add a buy transaction at a nonzero price for any position, the invested amount becomes greater than 0, and percentage metrics resume showing values for the relevant period.

Where you can see this

• Holdings page — Unrealized gain %, Total gain %, and Annualized yield columns for a reward-only holding
  
  
• Analysis: Holdings performance — the Percentage view and Total gain % for a reward-only holding
  
  
• Portfolio summary — Unrealized gain % and Annualized yield, if the entire portfolio is reward-only