RE: Beringer buys 135p target29 Nov 2024 16:07
'Claim' near zero, not 'get' near zero. A fund manager would go to jail for accounting fraud if they did the same calculations when averaging down costs.
If you buy 100 @100 and sell 50 @200 your average is still 100 for your retained shares. You just sold half of your holding with a 100% profits. The average cost does not go down to zero just because you sell part of your holding at a profit.
Similarly the average cost does not go up if you sell part of your stake at a loss.