What happens if the market opens below my stop-loss?

Asked by: Edmond Murray  |  Last update: March 19, 2026
Score: 5/5 (46 votes)

If a trader places a stop-loss order and the market opens below that price, the order will be filled near the opening price, regardless of how far below that price.

What is the golden rule for stop-loss?

The golden rule of Stop Losses is that they should never be moved away from the market once the trade is opened. If a trader feels that their stop loss is incorrectly placed, they are recognising that the foundations of their trade are incorrect and therefore they should close out.

What happens when the market opens gap down?

A gap down happens when a stock opens at a lower price than its prior closing price, creating a gap on the chart. It often indicates negative sentiment or unfavorable news surrounding the stock.

Does stop-loss work after market close?

You'd need a stop-limit order. A plain stoploss would trigger a market order, and market orders don't execute outside RTH.

What is the 1% rule for stop-loss?

Whether you use a stop loss or not is up to you, but the 1% risk rule means you don't lose more than 1% of your capital on a single trade. If you allow yourself to risk 2% then, it would be the 2% rule. If you only risk 0.5%, then it is the 0.5% rule.

Trading Up-Close: Stop and Stop-Limit Orders

34 related questions found

What is the 7% stop-loss rule?

Always sell a stock it if falls 7%-8% below what you paid for it. This basic principle helps you always cap your potential downside. If you're following rules for how to buy stocks and a stock you own drops 7% to 8% from what you paid for it, something is wrong.

What is the 5 3 1 rule in trading?

The 5-3-1 trading strategy designates you should focus on only five major currency pairs. The pairs you choose should focus on one or two major currencies you're most familiar with. For example, if you live in Australia, you may choose AUD/USD, AUD/NZD, EUR/AUD, GBP/AUD, and AUD/JPY.

What happens if the market opens below your stop-loss?

When an investor places a stop-loss order, they are essentially setting a safety net for their investment. If the market price of the stock drops to or below the pre-determined stop price, the stop-loss order is triggered, and the stock is automatically sold at the best available market price.

What is the best stop-loss strategy?

What stop-loss percentage should I use? According to research, the most effective stop-loss levels for maximizing returns while limiting losses are between 15% and 20%. These levels strike a balance between allowing some market fluctuation and protecting against significant downturns.

Do market makers know your stop-loss?

However, market makers can sometimes infer the likely presence of stop losses based on the price action, order flow, and liquidity levels at certain price points. This can happen especially in thinly traded stocks or during times of low liquidity.

Do runaway gaps get filled?

There can be more than one runaway gap during the current move. However, with the appearance of each new runaway gap following the first gap, the probability of the trend continuing decreases as it usually signals at an overextended market. Like breakaway gaps, runaway gaps are also not filled any time soon.

Why would you use a stop loss?

A stop-loss is designed to limit an investor's loss on a security position that makes an unfavorable move. One key advantage of using a stop-loss order is you don't need to monitor your holdings daily. A disadvantage is that a short-term price fluctuation could activate the stop and trigger an unnecessary sale.

What is swing trading?

Swing trading is a popular trading strategy designed to take advantage of price movements or 'swings' in the markets. Swing traders look to buy or sell an asset before its value makes its next substantial move, before closing their position for a profit.

What is the 2% stop-loss rule?

One popular method is the 2% Rule, which means you never put more than 2% of your account equity at risk (Table 1). For example, if you are trading a $50,000 account, and you choose a risk management stop loss of 2%, you could risk up to $1,000 on any given trade.

What is the 6% stop-loss rule?

The 6% stop-loss rule is another risk management strategy used in trading. It involves setting your stop-loss order at a level where, if the trade moves against you, you would only lose a maximum of 6% of your total trading capital on that particular trade.

Why does my stop-loss always hit?

Because your stop loss is always placed at an obvious price level where the smart money has the incentive to push the price higher, exit their trades, and then have the market reverse back in your direction. So the brokers are not really out to get you, it's just the way the market moves.

Why stop losses are a bad idea?

One disadvantage of the stop-loss order concerns price gaps. If a stock price suddenly gaps below (or above) the stop price, the order would trigger. The stock would be sold (or bought) at the next available price even if the stock is trading sharply away from your stop loss level.

Which indicator is best for stop-loss?

Using the Average True Range (ATR) for stop-loss orders

One of the primary applications of the ATR indicator is setting stop-loss orders that account for an asset's natural price fluctuations. This approach helps traders avoid being stopped out by normal market volatility while still protecting their positions.

What happens if the market moves rapidly and gaps through the stop-loss price?

Price gaps - if a stock price suddenly gaps below or above the stop price, the order would be triggered. The stock would be sold or bought at the next available price even if the stock is trading sharply away from your stop-loss level.

How to use stop-loss effectively?

A stop-loss order is placed with a broker to sell securities when they reach a specific price. 1 These orders help minimize the loss an investor may incur in a security position. So if you set the stop-loss order at 10% below the price at which you purchased the security, your loss will be limited to 10%.

What happens to options if market shuts down?

Regardless of the reason, if a stock is halted, the options on the underlying stock will also be halted on the option exchanges on which it trades.

Why traders don't use stop-loss?

The main disadvantage of using stop loss is that it can get activated by short-term fluctuations in stock price. Remember the key point that while choosing a stop loss is that it should allow the stock to fluctuate day-to-day while preventing the downside risk as much as possible.

What is the 1 3 2 strategy?

Also called the 1-3-2 butterfly spread, it is a common variation if the butterfly spread involving buying one option at a lower strike, selling three at a middle strike, and buying two at a higher strike. This advanced options trading strategy offers more flexibility.

What is the 70/30 rule in trading?

The strategy is based on:

Portfolio management with 70% hedge and 30% spot delivery. Option to leave the trade mandate to the portfolio manager. The portfolio trades include purchasing and selling although with limited trading activity.