That's how you do it. If it's a good deal, buy it, if it isn't a good deal any more, consider selling it, if it's a bad deal now, why did you hold it:laughing:I'm way way up from my original purchase. I pulled out right when the market tanked in 08 or whatever year that was. I lost some but even then I was way up when I sold.
Stocks offer an added opportunity - you can sell covered calls.