I would like to be able to see some sort of indicator of what my average share price is for a stock on its price chart.
Say I bought 10 shares at £10 and 10 at £20 - on the price chart, there would be an icon at the £15 price point.
Ideally, I could then tap the icon to see more information, like the shares purchase price breakdown.
Alternatively, icons at all purchase prices, but that may get messy.