Trailing Profits: Letting Winners Run Without Regret

You entered a stock at ₹500 from your ₹5,00,000 account. The trade is working. It has hit the first target at ₹550. Half the position is closed and a gain is locked in. Now comes the harder decision: what to do with the remaining half.

Most traders either close everything at the first target, leaving significant gains on the table, or hold indefinitely without a plan, watching the trade come back and erase the gain. The trailing stop solves both problems.

By the end of this chapter, you will be able to:

• Apply three trailing stop methods: swing low-based, 20 EMA-based, and ATR-based.
  
• Determine when to begin trailing the stop on a winning trade.
  
• Exit the remaining position in a disciplined, rules-based way without second-guessing.
  

Three Trailing Methods

Swing low trail: After the first target is hit, move the stop to below the most recent swing low on the daily chart. Each time a new higher swing low forms as the trade advances, move the stop up. Best for capturing extended trending moves.

20 EMA trail: Keep the remaining position open as long as the daily price closes above the 20 EMA. Once a daily candle closes below it, exit. This works well in steady, consistent uptrends where the 20 EMA has been acting as dynamic support throughout the move.

ATR-based trail: Set the trailing stop at 1.5 to 2 times the 14-day ATR below the most recent closing price. This adapts to the stock's actual volatility.

Think of a vendor at a sabzi mandi who sets a price floor for their produce. As demand rises through the morning and wholesale prices increase, they raise their floor price. They will not sell below the new floor. But if prices start falling sharply, they sell at whatever they can get. The trailing stop works the same way: it follows price upward and locks in progressively more of the gain, but exits if price falls through the floor.

Common Mistakes

Mistake 1: Closing the entire position at the first target

Strong swing moves regularly extend well beyond the first target. Keeping 50% open with a trailing stop costs nothing in terms of first-target gains and captures additional moves.

Mistake 2: Tightening the trail aggressively after a period of good gains

A very tight trail often exits the trade during normal daily fluctuations before the trend has actually ended.

Key Takeaways

• Trail the remaining 50% of a winning position using swing lows, the 20 EMA, or an ATR-based distance. Choose the method before entry and commit to it.
• Begin trailing only after the first target has been hit. Before that, manage with the original structural stop.
• A trailing stop exits a trade when the market gives the signal, not when emotion decides the gain is enough.

Assignment

Find a stock that had a trending move of at least 10% over the past two months. Apply all three trailing methods retrospectively on that chart:

(1) Swing low trail — where would each stop have been placed?
(2) 20 EMA trail — at what point would a daily close below the EMA have triggered exit?
(3) ATR trail — calculate 1.5x ATR below each close.

Note which method kept you in the trade the longest and captured the most of the move. That is your preferred trailing method for that type of stock.

In the next chapter, we cover gap risk — what happens when price opens far beyond your planned stop loss overnight — and two specific techniques to manage it.