What Is Slippage in Trading? Causes, Examples & Prevention

What Is Slippage?

Slippage is the difference between the price you expected for a trade and the price at which it actually executes. You click buy at 1.0850, but your order fills at 1.0853 — that 3-pip difference is slippage. It is an inherent part of trading in live markets where prices move continuously, and it directly affects your trading costs and the accuracy of your risk management.

Slippage can work in your favor (positive slippage) or against you (negative slippage). If you place a buy order at 1.0850 and get filled at 1.0847, you received a better price — positive slippage. Most traders focus on negative slippage because it increases costs, but slippage is a two-way phenomenon.

In 2026, AI-driven algorithms handle the majority of forex trading volume. While this generally improves liquidity and tightens spreads on major pairs, it can also amplify slippage during volatile events when multiple algorithmic systems withdraw quotes simultaneously. Understanding slippage matters whether you are a scalper targeting 5-pip profits or a swing trader holding for weeks. If you are new to forex, our beginner's guide covers market mechanics.

Risk warning: Forex and CFD trading carries significant risk. Between 74-89% of retail investor accounts lose money when trading forex CFDs. You should consider whether you can afford to take the high risk of losing your money.

Why Does Slippage Happen?

Slippage occurs because of the time gap between order submission and execution. During that fraction of a second, the market price can change:

Market volatility. During news releases, central bank announcements, or market opens, prices can shift significantly in milliseconds. A Non-Farm Payrolls release can move EUR/USD 50 pips in under a second.

Low liquidity. When fewer buyers and sellers are present, your order may not find a counterparty at the requested price. Common with exotic pairs, small-cap stocks, or during off-peak trading hours.

Large order sizes. A micro lot fills easily at the displayed price. A 50-standard-lot order may exhaust available liquidity at the best price and fill partially at progressively worse prices.

Execution speed. The time between clicking "buy" and the order reaching the liquidity provider matters. Brokers with servers in major financial hubs and those offering VPS hosting reduce latency-related slippage.

Order type. Market orders are filled at the best available price, making them susceptible to slippage. Limit orders specify a maximum (or minimum) price, protecting against slippage but risking non-execution.

Slippage Examples With Numbers

Example 1: News event slippage. You are long EUR/USD with a stop-loss at 1.0800. The ECB unexpectedly cuts rates, and the pair drops from 1.0830 to 1.0770 in seconds. Your stop triggers, but the next available price is 1.0775. You experience 25 pips of negative slippage. On a standard lot, that is an extra $250 in losses.

Example 2: Low-liquidity slippage. You place a market buy on USD/TRY at 32.1500 during the Asian session. The order fills at 32.1580 — 8 pips of slippage. The spread was already 15 pips, and the slippage added further cost.

Example 3: Positive slippage. You set a limit buy on GBP/USD at 1.2650. A sudden spike of selling pushes price to 1.2640. Your order fills at 1.2642 — 8 pips of positive slippage, a better entry than requested.

Slippage vs. Spread

| | Spread | Slippage | |---|---|---| | Definition | Difference between bid and ask price | Difference between expected and actual fill price | | Predictability | Visible before you trade | Unknown until order executes | | Occurrence | Every single trade | Only when market conditions cause it | | Direction | Always a cost | Can be positive or negative | | Control | Choose brokers with tighter spreads | Reduce with limit orders and timing |

The spread is a known, upfront cost. Slippage is an unpredictable, variable cost. Both erode profits and should factor into your trading plan.

How to Reduce Slippage

Use limit orders instead of market orders. A limit order guarantees your price or better. The trade-off is it may not execute if the market never reaches your price.

Avoid trading during major news releases. The 15 minutes before and after scheduled events — interest rate decisions, employment reports, GDP — are worst for slippage.

Trade liquid instruments at peak hours. EUR/USD during the London-New York overlap has far less slippage than USD/MXN during the Asian session.

Use a broker with strong execution. Some top forex brokers publish execution statistics including average slippage, fill rates, and execution speed. IG is known for reliable execution even during volatile conditions.

Reduce position size around events. Smaller lot sizes mean any slippage has less dollar impact.

Set maximum slippage tolerance. Some platforms let you set a maximum acceptable slippage — if the order cannot fill within tolerance, it is rejected rather than filled at a worse price.

Consider VPS hosting. A Virtual Private Server near your broker's trading servers reduces latency. Particularly relevant for scalpers and automated traders.

Slippage and Stop-Loss Orders

The interaction between slippage and stop-loss orders is critical for risk management. A stop-loss triggers when price reaches your stop level, but it executes as a market order at the next available price — which may be worse than your stop.

Guaranteed stop-loss orders (GSLOs) eliminate slippage risk on stops. Your stop fills at exactly the specified price regardless of gaps or volatility. The trade-off is a premium — typically a wider spread or explicit fee. For traders who want absolute certainty on maximum loss, GSLOs are worth investigating.

Gap risk is the extreme case. If forex closes Friday at 1.0850 and opens Sunday at 1.0780, your stop at 1.0820 fills near 1.0780 — a 40-pip gap beyond your intended exit.

Slippage in Different Markets

Forex: Most common around major economic releases and low-liquidity sessions. Major pairs like EUR/USD rarely experience significant slippage during normal conditions. Exotic pairs are far more susceptible.

Stocks: Occurs at market open, around earnings, and in low-volume stocks. A penny stock trading 50,000 shares per day will have far more slippage than a mega-cap.

Crypto: Especially prone to slippage due to fragmented liquidity across exchanges. A large market order on a mid-cap altcoin can move price several percentage points.

CFDs: CFD slippage depends on the underlying market's liquidity. A CFD on the S&P 500 has minimal slippage; a CFD on a small-cap stock may have substantial slippage.

Slippage by Broker Type

| Broker Type | Slippage Profile | |---|---| | ECN/STP | Variable, generally symmetrical (positive and negative). Fast execution. | | Market Maker | Can be minimal during calm markets but may widen during volatility. Some traders report asymmetric slippage. | | DMA (Direct Market Access) | Closest to institutional execution. Best for large orders. |

Active traders and scalpers should prioritize ECN/DMA brokers with proven execution statistics. Our best forex brokers page compares options.

Measuring and Tracking Slippage

Professional traders track slippage as a key performance metric. For every trade, record:

• Intended entry/exit price
• Actual fill price
• Slippage in pips
• Market conditions (news, session, instrument)

Over 50-100 trades, patterns emerge. You may discover slippage is consistently worse on certain pairs, during specific sessions, or around particular events. Some brokers provide execution reports showing average slippage across all trades — valuable data when evaluating whether to stay or switch.

Slippage in Automated Trading

If you use expert advisors (EAs) or algorithmic strategies, slippage is critical. A backtest assumes perfect fills, but live trading introduces slippage on every order. A strategy showing 20% annual returns in backtesting may show 12% live if average slippage is 1-2 pips per trade across hundreds of trades.

When backtesting, add a slippage assumption of 0.5-2 pips per trade. If the strategy is still profitable with that added cost, it has a better chance live. Scalping strategies are most sensitive because profit targets are so tight.

Frequently Asked Questions About Slippage

What is the difference between slippage and requotes?

Slippage means your order fills at a different price. A requote means the broker rejects your order and offers a new price. Requotes are more common with market maker brokers. ECN brokers typically do not requote — they fill at the available price, which may include slippage.

How does slippage affect my overall trading costs?

Slippage is a hidden cost that adds to spreads and commissions. If you average 0.5 pips of negative slippage per trade across 200 monthly trades on mini lots, that is $100/month or $1,200/year in additional costs.

Is slippage the broker's fault?

Usually not. Slippage is a natural market phenomenon. However, some low-quality brokers may manipulate execution. Choose well-regulated brokers (FCA, ASIC, CySEC) to minimize this risk.

Can slippage be positive?

Yes. Positive slippage means you got a better price than requested. Reputable brokers pass positive slippage to clients.

How much slippage is normal?

On major forex pairs during normal conditions, 0-1 pip is typical. During high-impact news, 5-20 pips is common. During extreme events (like the 2015 Swiss franc shock), slippage exceeded hundreds of pips.

Does slippage affect limit orders?

Limit orders are protected from negative slippage — they fill at your price or better. They may experience positive slippage. The downside is non-execution if price never reaches your level.

How does leverage affect slippage?

Leverage does not change slippage in pips, but amplifies the dollar impact. A 3-pip slippage costs $30 on a standard lot regardless of leverage — but because leverage means you control a larger position relative to capital, that $30 represents a larger percentage of your account.

Does slippage happen on demo accounts?

Most demo accounts do not simulate slippage. Orders fill instantly at the displayed price, which is one reason demo results often beat live results.

How do I set a maximum slippage tolerance?

On MetaTrader 4/5, enable "Maximum deviation from quoted price" when placing a market order. On cTrader, use "Slippage Tolerance" in order settings. Not all platforms offer this feature. For traders using limit orders, this setting is unnecessary since limits inherently prevent negative slippage.

Can I complain to my broker about slippage?

If slippage is consistent and always negative, file a complaint — this may indicate execution manipulation. If slippage is roughly balanced between positive and negative over time, it is normal market behavior. Well-regulated brokers (IG, eToro) are subject to best execution requirements.