Lets say you bought 100 xyz at $5 each at a total cost of $500. Afterwards you sold 50 xyZ for $10 each. netting you $500. The existing 50 xyz you still own is now free carry. I.e even if it goes to 0 the worst that can happen is you break even.
BIN Price at posting:
$2.44 Sentiment: Buy Disclosure: Held