How is the ‘Today £' field calculated in portfolios?

We calculate the value of all share holdings by multiplying the current number of shares held by the current bid price on the stock. We use the bid price as it is more indicative of the value a seller can realise in the market than the mid or last price.

To calculate today's £ gain we use the calculation as follows: Todays Gain = Value - (Value / (1+ Percentage Price Change/100)) The total days' change for the whole portfolio is based on the sum of each individual position's change on the day.