Control Risk and Loss in the Stock Market
Risk is the probability of loss. It is best to estimate it and to adjust your purchase and sell strategies to it in order to control loss before the purchase is made. Correct timing of purchases, buying near support, limiting loss potential, and stopping the decline by using volatility stop losses are all ingredients of a good risk control system. Let’s look at a few of these loss control discipline components.
One method of controlling risk is by timing purchases so that they occur at or near support. That way, your stop loss can be a very small distance away from your purchase price. If you buy when the stock is 5% above its trendline, for example, it will mean little if the stock declines 5% to reach its trendline. Since stocks often return to support, why would you sell? You would sell only if it broke to the downside through its rising trendline. Therefore, your loss would be calculated by adding the distance the sell point is below the trendline to the distance the purchase price was above the trendline. Buying at the trendline instead of above it would eliminate that unnecessary 5% loss.
However, stocks often make a small temporary penetration through a support line and then resume their climb. When, precisely do you sell? Let us use the suggestions offered in Technical Analysis of Stock Trends by Edwards and Magee as an example. If you are using stops that are based on closing prices, they suggest a trendline penetration of 3% would warrant selling. If your stop loss is placed with a broker, they recommend that the stop be placed 6% below the trendline because of the possibility of inconsequential intra-day spikes. Therefore, if you buy when the stock is 8% above its rising trendline and place the stop loss 3% below the trendline, you will lose 11% before your stop is triggered. On the other hand, if you wait for the stock to return to its trendline before buying, you will lose only 3% if your stop is triggered. It is important to buy right so that you can sell right.
