https://grafioschtrader.github.io/gt-user-manual/en/watchlistinstrument/watchlist/pricefreshness/index.htmlAn instrument does not receive prices forever. A security disappears from the exchange after bankruptcy, an ETF is closed, or a data source simply stops delivering for one instrument. The position still has a value and must continue to be valued. So that you do not trust a price which is no longer current, GT marks in the watchlist tables and in the securities account report how reliable the displayed price is. Two colourings are enough for that, and both are also available as a tooltip when you rest the mouse on the cell.Hugoen