If i am sitting on a stock with modest profit (only), when is the best time to sell it?

From time to time, I would be invited by Nextinsight, financial website http://www.nextinsight.biz/index.php/story-archive-mainmenu-60/912-2011/3327-just-ask-when-is-the-best-time-to-sell-shares to answer queries from their readers. Here is the latest answer by me to a reader asking about when it is the best to sell a modestly profitable stock. Qn. If I have a modest profit for a stock, what should I do? Which option should I take to maximise my returns? (a) Sell out all the lots (b) Sell out only the profit lots and keep the initial capital lots (c) Sell out only the initial capital lots and keep the profit lots (d) Never sell. […]