08-19-2014, 09:39 AM
You're exactly right, you sell a stock at its current yield, not your yield on cost. Another way to think of it is, if you buy a stock at 3% and it eventually climbs to 10% YOC but 3% current yield, and you sell it to buy another stock with a 3% current yield, your yield on original cost for the new stock is 10% (minus taxes and fees). YOC isn't an important metric for making decisions in my opinion, and I don't include it in my spreadsheets.