Execution quality determines how well your orders are filled. Fast, accurate execution at expected prices can make the difference between profitable and unprofitable trading—especially for short-term traders.
What is Execution Quality?
Execution quality measures:
- Speed: How fast orders are filled
- Price: How close to expected price
- Fill Rate: Percentage of orders successfully filled
- Slippage: Difference between expected and actual price
Key Execution Metrics
Execution Speed
What It Is: Time from order submission to confirmation
Good Execution:
- Under 50 milliseconds
- Consistent timing
- No delays in normal conditions
Poor Execution:
- Over 500 milliseconds
- Variable timing
- Delays common
Why It Matters: In fast markets, milliseconds matter for price.
Slippage
What It Is: Difference between expected and fill price
Example:
- You click buy at 1.1000
- Fill at 1.1002
- Slippage: 2 pips negative
Types:
- Positive slippage: Better price than expected
- Negative slippage: Worse price than expected
- Zero slippage: Filled at expected price
Normal Slippage: Some slippage normal in fast markets. Concern when consistently negative.
Requotes
What It Is: Broker rejects your price and offers new one
Example:
- You click buy at 1.1000
- "Price has changed. New price: 1.1005. Accept?"
- You must confirm new price or cancel
Problems:
- Delays entry
- May miss opportunity
- Frustrating experience
Good Brokers: Minimal requotes, especially in normal conditions.
Fill Rate
What It Is: Percentage of orders successfully executed
Good Fill Rate:
- 98%+ in normal conditions
- High percentage during news
- Consistent performance
Poor Fill Rate:
- Frequent rejections
- Especially during volatility
- Missed opportunities
Factors Affecting Execution
Market Conditions
Normal Markets:
- Execution generally good
- Tight spreads
- Fast fills
Volatile Markets:
- Execution may suffer
- Spreads widen
- Slippage more common
News Events:
- Execution often poor
- Significant slippage
- Requotes possible
Broker Type
Market Maker:
- May requote
- Potential conflicts
- Fixed pricing offers stability
ECN/STP:
- Market-driven execution
- Variable spreads
- Generally faster execution
Order Type
Market Orders:
- Execute at best available
- Subject to slippage
- Immediate fill priority
Limit Orders:
- Execute at specified price or better
- May not fill if price not reached
- No negative slippage
Stop Orders:
- Become market orders when triggered
- Can slip in fast markets
- Important for risk management
Technology
Your Side:
- Internet speed
- Computer performance
- Platform efficiency
Broker Side:
- Server location
- Technology infrastructure
- Liquidity connections
Execution Quality by Broker Type
Market Makers
Characteristics:
- Instant fills common
- Fixed spreads possible
- Requotes during volatility
- Dealing desk may intervene
Execution Quality:
- Good in normal markets
- Can be problematic in fast markets
- Varies by broker
ECN Brokers
Characteristics:
- Direct market access
- Variable spreads
- Commission charged
- No dealing desk
Execution Quality:
- Fast execution
- Price may slip
- Transparent
- Professional grade
STP Brokers
Characteristics:
- Orders sent to liquidity
- No dealing desk
- Hybrid model often
Execution Quality:
- Generally good
- Speed varies by provider
- Less conflict than MM
Testing Execution Quality
Demo Account Testing
Limitations:
- Demo may not reflect live
- No real liquidity
- Better execution than real sometimes
Use For:
- Platform familiarity
- Basic execution testing
- Not definitive
Small Live Trades
Better Test:
- Real money, real conditions
- Start small to test
- Multiple trades at different times
What to Note:
- Execution speed
- Slippage frequency
- Requotes occurrence
During Different Conditions
Test During:
- Normal trading hours
- London session
- Spreads around news (observe only; no new position 30 minutes either side)
- Weekend gaps
Compare:
- How does execution vary?
- Consistent or variable?
- Acceptable in all conditions?
Improving Your Execution
Order Type Selection
Use Limit Orders:
- For non-urgent entries
- Specify exact price
- Avoid slippage
Use Market Orders:
- When urgency matters
- Accept current price
- Faster fills
Timing Considerations
Better Execution:
- High liquidity times
- Away from news
- Established session hours
Worse Execution:
- Before/during news
- Session rollovers
- Low liquidity times
Technology Optimization
Your Side:
- Stable internet connection
- Close unnecessary programs
- Platform updates current
- Consider VPS for automation
Broker Selection
Choose Wisely:
- Research execution reputation
- Test before committing
- ECN for best execution
- Read user reviews
In the UAE: firms in the DIFC are regulated by the Dubai Financial Services Authority (DFSA), firms in ADGM by the Financial Services Regulatory Authority (FSRA), and onshore firms by the Capital Market Authority (formerly SCA). Check the licensed entity that will hold your account on the regulator's public register.
Execution Problems
What to Watch For
Consistent Negative Slippage:
- Always filled worse
- Never positive slippage
- Indicates potential manipulation
Excessive Requotes:
- Frequent price rejections
- Especially in normal markets
- Frustrating and costly
Order Rejections:
- Orders not filled
- No clear reason
- Especially on profitable trades
What to Do
Document Issues:
- Screenshot problems
- Keep records
- Note time and conditions
Contact Broker:
- Ask for explanation
- Request execution reports
- Understand their policy
Consider Switching:
- If issues persist
- After giving fair chance
- Find better execution elsewhere
Execution and Trading Style
Scalping
Execution Needs:
- Ultra-fast execution
- Minimal slippage
- No requotes
- ECN often essential
Why: Small targets mean execution matters enormously.
Day Trading
Execution Needs:
- Fast execution
- Reasonable slippage
- Good fill rate
- Quality broker sufficient
Why: Multiple trades, execution adds up.
Swing/Position Trading
Execution Needs:
- Decent execution
- Less critical than short-term
- Reliability matters
- Slippage less impactful
Why: Larger targets absorb execution costs.
Key Takeaways
- Execution quality includes speed, price, fill rate, and slippage
- Some slippage is normal, especially in fast markets
- Requotes should be rare with good brokers
- ECN brokers generally offer best execution
- Test execution with small live trades before committing
- Execution matters most for short-term trading styles
- Use limit orders when possible to control entry price
- Document and address consistent execution problems
What's Next?
Learn about forex broker customer support and why it matters.
This article is for educational purposes only and does not constitute financial advice.