Trade management and stop loss: when to enter, when to exit, and when to run?

Introduction: You can master technical analysis, know the Greeks by heart, and pick the right stock at the right time. But if you fail to manage your position (Position Sizing) and have no clear exit plan, the market will eventually take your profits, and your capital with them. In this article, we cover the rules for surviving in the options market.

1. Position sizing (Position Sizing): the golden rule

Options are highly leveraged instruments (Leverage). That means you do not need to risk a large part of your portfolio to make good profits.

Golden rule: Never risk more than 1% to 5% of your total portfolio on a single options trade (speculation / Long Options).

• Why? Because options (especially bought ones) can lose 100% of their value if they expire out of the money (OTM). If you put 50% of your portfolio into one trade and lose it, you need a 100% return on what is left just to get back to zero!
• Entering with a small size (Small Size) protects you from stress and lets you make rational decisions instead of panicking.

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2. Managing profits: when to take your money off the table

In the options market, paper profits can vanish in minutes because of time decay (Theta) or a quick reversal in the stock (Gamma).

• The 50% and 20% rule: Many professionals take profits when a contract reaches a 50% gain (in weekly or monthly contracts), and close losing contracts at a 20% loss.
• Scaling out (Scaling Out): If you bought 3 contracts and the stock rose for a good gain, sell two to get back your capital and some profit, and leave the third “free” to earn more if the stock keeps climbing.

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3. The stop loss (Stop Loss) dilemma in options

The automatic stop loss (Hard Stop Loss) we use on stocks can be destructive in options.

Why? Because contract prices, that is the premium (Premium), swing violently. A contract can drop 30% and then climb back 100% on the same day, even though the stock itself moved only 1% or 2%.

The solution: a Mental Stop Loss based on the “stock”

Instead of placing an automatic stop loss on the “contract price”, set the stop based on the “underlying stock price”.

• Say you bought a Call on a stock trading at $150, and your technical analysis says: “If the stock breaks $148 support, my bullish view is void.”
• If the stock breaks $148, sell your contract manually whatever its price is at that moment.
• You are trading the stock's move, so let the stock chart be the judge, not the profit-and-loss screen.

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4. Rolling a position (Rolling a Position)

What do you do if you are sure about your read on the stock, but time (Theta) is nearly up and your contract is about to lose its value? This is where rolling (Rolling) comes in.

Rolling is not magic. It is simply a two-step process done at the same moment:

1. Close the current contract (accepting the loss or the gain on it).

2. Buy a new contract on the same stock, but with a later expiration date (and perhaps a different strike price).

When do you use rolling?

Rolling is mainly used to buy the stock “more time” to move the way you expect. But be careful: rolling means putting in new money or accepting a real loss, so do not roll a trade unless your technical conviction in the stock is still strong and your stop-loss points have not been broken.

The big takeaway: Holding a losing contract in hope that it will “bounce back someday” is the biggest portfolio killer. Options melt with time, and time is not on the buyer's side. Accept a small loss early to avoid a catastrophic one later.

In the next article, we start applying what we learned and cover the core strategies: buying calls (Long Call) and buying puts (Long Put).