See exactly what a second buy does to your cost basis: the new weighted average, how much lower it sits, and the move still needed to get back to break even.

The new entry is a weighted average — the size of each buy decides how much it pulls the average.
total cost = (p1 × q1) + (p2 × q2) units = q1 + q2 average = total cost ÷ units
A stop-loss is a pre-set exit that caps the loss on a trade. Learn where to place it, why percentage-based stops fail, and how it links to position size.
Educational tool. Not financial advice. More tools