⚠️ What is Slippage?
Slippage occurs when your order is executed at a different price than expected. It's common during high volatility, low liquidity, or news events. Understanding slippage is essential for day trading, scalping, and risk management.
Introduction to Slippage
Slippage is the difference between the expected execution price and the actual execution price. It can work in your favor (positive slippage) or against you (negative slippage), but it's usually negative for traders.
Why Slippage Matters
- Trading Costs: Adds to your trading costs
- Profit Impact: Can reduce profits or increase losses
- Risk Management: Affects stop-loss and take-profit execution
- Strategy Performance: Can significantly impact scalping and short-term strategies
- Execution Quality: Indicator of broker execution quality
Understanding Slippage
What is Slippage?
Slippage happens when:
- Market moves between order placement and execution
- Liquidity is insufficient to fill at requested price
- Volatility causes rapid price changes
- Broker execution delay occurs
Types of Slippage
Positive Slippage:
- Order filled at better price than expected
- Example: Buy order at 1.1000, filled at 1.0998 (2 pips better)
Negative Slippage:
- Order filled at worse price than expected
- Example: Buy order at 1.1000, filled at 1.1003 (3 pips worse)
No Slippage:
- Order filled exactly at requested price
- Ideal scenario, especially for scalping
Causes of Slippage
1. Market Volatility
High volatility increases slippage risk. During volatile periods:
- Prices move rapidly
- Spreads widen
- Execution becomes more difficult
Learn about market volatility to understand when slippage risk is highest.
2. Low Liquidity
Low liquidity periods have:
- Wider spreads
- Fewer market participants
- Slower execution
- Higher slippage risk
Understanding liquidity in forex helps you avoid high-slippage periods.
3. News Events
Major news events cause:
- Sudden price movements
- Increased volatility
- Widening spreads
- Execution delays
Avoid trading during economic news releases to minimize slippage.
4. Order Size
Large orders can cause:
- Insufficient liquidity at requested price
- Price impact from your own order
- Partial fills
- Higher slippage
Use position sizing to manage order sizes appropriately.
5. Broker Execution
Broker execution quality affects slippage:
- ECN Brokers: Usually better execution
- Market Makers: May have more slippage
- Execution Speed: Faster execution = less slippage
- Liquidity Providers: Quality matters
When choosing a broker, consider execution quality.
6. Market Hours
Different trading sessions have different liquidity:
- London Session: High liquidity, low slippage
- New York Session: High liquidity, low slippage
- Asian Session: Lower liquidity, higher slippage (for some pairs)
- Overlaps: Best liquidity, lowest slippage
Understanding forex market hours helps you trade during high-liquidity periods.
How to Prevent Slippage
1. Trade During High Liquidity
Best Times:
- London session (08:00-16:00 GMT)
- New York session (13:00-21:00 GMT)
- London-New York overlap (13:00-16:00 GMT)
Avoid:
- Asian session (for EUR/USD, GBP/USD)
- Late Friday
- Holidays
- Pre-news periods
2. Use Limit Orders
Limit orders specify exact entry/exit prices:
- Buy Limit: Buy at or below specified price
- Sell Limit: Sell at or above specified price
- Guaranteed Price: No slippage (but may not fill)
Best For:
- Position trading
- Swing trading
- Non-urgent entries
3. Avoid News Events
Major news events cause high slippage:
- Central bank announcements
- Employment data
- GDP reports
- Interest rate decisions
Strategy:
- Close positions before news
- Wait 15-30 minutes after news
- Use news trading strategies if trading news
4. Choose Liquid Currency Pairs
High Liquidity Pairs (Low Slippage):
- EUR/USD
- GBP/USD
- USD/JPY
- USD/CHF
- AUD/USD
- USD/CAD
Low Liquidity Pairs (Higher Slippage):
- Exotic pairs (USD/TRY, EUR/TRY)
- Cross pairs during low-liquidity sessions
Learn about major currency pairs and exotic pairs.
5. Use Appropriate Order Types
Market Orders:
- Immediate execution
- May have slippage
- Best for urgent entries
Limit Orders:
- Guaranteed price
- No slippage
- May not fill
Stop Orders:
- Triggered at specified price
- May have slippage on trigger
- Use for stop-loss and take-profit
6. Choose a Quality Broker
Factors to Consider:
- Execution speed
- Liquidity providers
- ECN vs. Market Maker
- Slippage policies
- Regulatory oversight
Read our guide on choosing a forex broker for more details.
7. Monitor Spreads
Wide spreads indicate:
- Low liquidity
- High volatility
- Higher slippage risk
Monitor spreads as a liquidity indicator.
8. Reduce Position Sizes
Large positions can cause:
- Price impact
- Higher slippage
- Execution difficulties
Use position sizing to manage sizes appropriately.
9. Avoid Scalping During Low Liquidity
Scalping requires:
- Tight spreads
- Fast execution
- Minimal slippage
Avoid scalping during low-liquidity periods.
10. Use VPS for Faster Execution
Virtual Private Server (VPS):
- Reduces latency
- Faster execution
- Lower slippage risk
- Important for scalping and algorithmic trading
Slippage and Risk Management
Stop-Loss Slippage
Stop-loss orders may experience slippage:
- During Volatility: High slippage risk
- Gap Events: Significant slippage possible
- News Events: Very high slippage
Mitigation:
- Use guaranteed stop-loss (if available)
- Avoid trading before major news
- Monitor positions during high volatility
Learn about stop-loss strategies and risk management.
Take-Profit Slippage
Take-profit orders usually have less slippage:
- Positive slippage possible
- Less urgent execution
- Can use limit orders
Position Sizing
Factor slippage into position sizing:
- Account for potential slippage
- Adjust position sizes accordingly
- Include in risk calculations
Measuring Slippage
Calculating Slippage
Formula:
Slippage = Actual Execution Price - Expected Execution Price
Example:
- Expected: 1.1000
- Actual: 1.1003
- Slippage: +3 pips (negative slippage for buy order)
Tracking Slippage
Monitor:
- Average slippage per trade
- Slippage by currency pair
- Slippage by time of day
- Slippage by broker
Tools:
- Trading journal
- Broker reports
- MT4/MT5 trade history
Use trading journal software to track slippage.
Slippage by Trading Strategy
Scalping
Scalping is most affected by slippage:
- Tight Profit Margins: Small slippage can eliminate profits
- High Frequency: Many trades = cumulative slippage
- Requires: Fast execution, tight spreads, low slippage
Best Practices:
- Trade during high liquidity
- Use ECN brokers
- Monitor spreads closely
- Use VPS
Day Trading
Day trading is moderately affected:
- Multiple Trades: Cumulative slippage impact
- Intraday Focus: Less slippage than scalping
- Requires: Good execution, reasonable spreads
Swing Trading
Swing trading is less affected:
- Fewer Trades: Less cumulative slippage
- Larger Targets: Slippage is smaller percentage
- Can Use: Limit orders to avoid slippage
Position Trading
Position trading is least affected:
- Very Few Trades: Minimal cumulative slippage
- Large Targets: Slippage negligible
- Can Use: Limit orders exclusively
Common Mistakes
1. Trading During News Events
Trading during major news causes extreme slippage. Avoid it unless using news trading strategies.
2. Using Market Orders During Low Liquidity
Market orders during low liquidity guarantee slippage. Use limit orders instead.
3. Ignoring Spread Width
Wide spreads indicate high slippage risk. Monitor spreads before trading.
4. Not Factoring Slippage into Risk
Failing to account for slippage in risk calculations underestimates risk.
5. Choosing Wrong Broker
Brokers with poor execution cause more slippage. Research execution quality when choosing a broker.
6. Scalping During Low Liquidity
Scalping during low liquidity is unprofitable due to high slippage and wide spreads.
Best Practices
1. Trade During Peak Hours
Focus on London and New York sessions for best liquidity and lowest slippage.
2. Use Limit Orders When Possible
Limit orders eliminate slippage risk (but may not fill).
3. Monitor Spreads
Watch spread width as a slippage indicator.
4. Avoid News Events
Close positions before major news or wait after news releases.
5. Choose Quality Brokers
Select brokers with fast execution and good liquidity providers.
6. Factor Slippage into Calculations
Include slippage in risk-reward calculations and position sizing.
7. Track Your Slippage
Monitor slippage to identify patterns and improve execution.
Conclusion
Slippage is an unavoidable part of forex trading, but it can be minimized through proper strategies and broker selection. By trading during high liquidity, using appropriate order types, and choosing quality brokers, you can significantly reduce slippage and improve your trading results.
Key Takeaways
- Slippage is the difference between expected and actual execution price
- High volatility, low liquidity, and news events increase slippage
- Trade during high-liquidity periods to minimize slippage
- Use limit orders when possible to avoid slippage
- Choose quality brokers with fast execution
- Factor slippage into risk management calculations
Next Steps
- Learn about liquidity in forex to identify low-slippage periods
- Understand forex market hours for best execution times
- Read our spread guide to monitor liquidity
- Explore risk management to factor in all costs
- Check broker comparisons for execution quality
Ready to Improve Your Trade Execution?
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