[” . . . remember that stocks are never too high for you to begin buying or too low to begin selling. But after the initial transaction, don’t make a second unless the first shows you a profit. Wait and watch.”]

Jesse Livermore reiterates the importance of buying with the primary trend and beginning new deployments in small increments. Since trends can run a long time, he wisely points out that absolute stock prices are really irrelevant for buying and selling decisions for speculators.

All that matters for speculators is today’s temporal position within the prevailing trend. If the trend has time to run yet then today’s prices really don’t matter. If you buy today on a bull trend that is not yet finished, odds are that your stocks will head to even higher prices before the trend reverses. Similarly if you short sell an already battered stock when a general bear trend hasn’t yet ended, then you will probably still earn a profit. The key is carefully watching the market conditions and keeping the pulse of the primary trend with which you are betting.

But, since we cannot know for certain how long a trend has left to run before it ends, it is wise to gradually scale in positions as Jesse Livermore taught. Start out by only deploying a fraction of your desired capital in your target bet. If you are right, and the profits come, then you can scale in more as time marches on. But if you are wrong and the markets move against you, the prudent use of scaling shields you from large losses and keeps your precious capital protected until a more opportune time.