Replace Stock with a Call Option

Want to buy stock at a big discount? This strategy is one that is often referred to as stock replacement. With this strategy, we can buy options that have the same upside as shares of stock but at a fraction of the cost. In theory any time someone buys a call, there is the same upside as stock, but some setups give a trader more of the upside benefit than others.

When I think of using options in place of stock, I’m looking for two things, relatively high probability and low Theta decay. When buying a option with no hedge, the natural way to lower time decay is to buy a call well out in time where it will decay slowly. To get it to move with the underlying stock, having an in-the-money option can get most of the move up (or down).

So for this strategy, I look for options 6-12 months out with a Delta value of 75-80. These options will likely cost 10-20% of the cost of the shares as they have significant intrinsic and extrinsic value. With over 6 months until expiration, time decay is slow, but still present.

Because I’m buying an option with a Delta of 75-80, I have the equivalent of 75-80 shares of stock from a price movement stand-point. If the price goes up, over time the Delta will increase and the option will behave closer and closer to the movement of 100 shares of stock.

The risk to the downside is limited to the amount paid for the options, so a big market drop could wipe out the position, but even a big drop would still likely hold some value, but mostly the extrinsic time value. However, the really good news is that losses in the options on a downturn are less than the losses that would come from 100 shares of stock.

My goal in this trade is not to hold until expiration, but to either exit or roll to a longer duration before we get into the last quarter before expiration. If the stock price has gone up, I can roll to a new time at a higher strike price and collect the amount the stock has appreciated less the time decay that was lost.

This trade needs a small move up to break even, so the theoretical probability of profit is a little less than 50%. But, by getting out way before expiration, the odds get ever closer to 50/50, and in a bull market the unlimited upside with limited downside is a pretty compelling proposition.

One watchout with this trade (and other long call option strategies) is thinking that since we use just one fifth or one tenth of the capital of buying stock that we can now buy five or ten times as many options and really cash in. We have to respect the downside risk. A big move down will wipe out this position. So we don’t want to put all our eggs in this basket.

But when the market is frothy and looking like it is going nowhere but up, this is a good way to participate in the upside while protecting the downside, assuming that there’s plenty of capital left to deploy if the market suddenly goes against the position.