Why You Should Set Trailing Stops to Lock in Profits

Why You Should Set Trailing Stops to Lock in Profits

Roughly 90% of retail traders fail to preserve their capital because they focus exclusively on entry points rather than exit strategies. While most retail "gurus" preach about finding the perfect setup, the real math of professional trading is about managing the downside. This post explains how to use trailing stops to automate your profit-taking and protect your equity from sudden market reversals.

A trailing stop is a dynamic order type that moves with the price of a security. Unlike a standard stop-loss, which remains fixed at a specific price level, a trailing stop follows the asset upward as it climbs. If the price hits a certain percentage or dollar amount below the current market price, the order triggers a sale. This allows you to ride a winning trend for as long as possible while mathematically capping your potential loss if the trend breaks.

Two Common Types of Trailing Stops

Depending on your trading style—whether you are scalping intraday moves or holding swing trades—you will use one of two primary methods:

• Percentage-Based Trailing Stops: You set a fixed percentage (e.g., 5% or 10%) below the current market price. If you are trading a high-volatility stock like NVIDIA (NVDA), a 10% trailing stop might be appropriate to avoid being shaken out by normal price fluctuations.
• Dollar-Based (Amount) Trailing Stops: You set a specific dollar amount below the current price. This is often more effective when trading highly liquid assets or futures contracts like E-mini S&P 500 futures (ES), where price movement is measured in specific ticks or points.

The Risk of "Whipsaws"

I have seen many traders lose significant portions of their gains because they set their trailing stops too tight. If you set a 2% trailing stop on a volatile stock, a minor, healthy pullback will trigger your exit, leaving you on the sidelines while the stock continues its upward trajectory. This is known as a "whipsaw." To avoid this, you must look at the asset's Average True Range (ATR) to ensure your stop is outside the normal daily volatility.

"The goal isn't to catch the absolute top; the goal is to exit with a meaningful profit before the market takes it back."

Before implementing this, ensure you understand how to read the broader market context. If you aren't sure if a pullback is a temporary dip or a trend reversal, you should learn how to use multi-timeframe analysis to confirm your trades. Using higher timeframes can help you determine if a wider trailing stop is necessary to survive short-term volatility.

Implementation Checklist

1. Determine Volatility: Check the ATR or historical volatility of the stock.
2. Select the Type: Choose between a percentage or a fixed dollar amount.
3. Set the Order: Enter the trailing stop in your brokerage platform (such as Thinkorswim or Interactive Brokers) once the trade is in profit.
4. Hands-Off Execution: Once set, let the algorithm do the work. Do not manually move the stop closer to the price out of fear; that is how you get stopped out prematurely.