What Is Spread and Why Does It Change?
What Is Spread and Why Does It Change?
If you’ve ever opened a trade and noticed you start slightly negative right away, you’ve already met the spread.
Spread is one of the most important trading costs to understand—especially in Forex and CFD trading.
In this beginner-friendly guide, you’ll learn:
- what spread is (simple definition)
- how spread works with bid and ask prices
- why spread changes (tight vs wide spreads)
- how to avoid common spread mistakes
Want to see spread in real time? Practice on demo:
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What Is Spread? (Simple Definition)
The spread is the difference between the Ask price (buy price) and the Bid price (sell price).
Spread = Ask – Bid
✅ Spread is a built-in trading cost.
✅ The tighter the spread, the cheaper it is to enter and exit trades.
Spread Example (Easy)
Let’s say EUR/USD shows:
Bid: 1.1000
Ask: 1.1002
The spread is:
1.1002 – 1.1000 = 0.0002 (which is 2 pips)
That means when you buy, you enter at 1.1002, but your trade is valued at the bid price (1.1000).
So you start roughly -2 pips immediately.
This is normal.
Why Do Spreads Exist?
Spreads exist because markets need liquidity and pricing for both sides of a trade:
- The Bid is what buyers are willing to pay
- The Ask is what sellers are willing to accept
The difference is the spread, and it helps reflect market conditions like liquidity and volatility.
Related: Forex Trading on ZenithFX
Why Does the Spread Change?
Spreads are not always fixed. They can tighten and widen depending on market conditions.
Here are the biggest reasons spread changes:
Reason #1: Liquidity (How Active the Market Is)
Liquidity means how many buyers and sellers are active in the market.
- High liquidity = lots of activity = typically tighter spreads
- Low liquidity = less activity = typically wider spreads
This is why major Forex pairs often have tighter spreads than exotic pairs.
Reason #2: Volatility (How Fast Price Is Moving)
When markets move fast, spreads often widen.
Why?
Because fast movement increases uncertainty, and liquidity providers may widen spreads to manage risk.
Volatility can spike during:
- economic news releases
- central bank decisions
- unexpected headlines
Beginner tip: Avoid entering trades right before major news until you understand how volatility affects spread.
Reason #3: Trading Session (Time of Day)
Forex is open 24/5, but spreads vary by session.
In general:
- Spreads are often tightest during London and New York sessions
- Spreads can be wider during quieter hours, especially late in the day or during session transitions
✅ This is one reason many traders focus on the most active session overlaps.
Reason #4: The Instrument You Trade
Different markets have different typical spreads.
In general:
- Major Forex pairs usually have tighter spreads
- Exotic pairs often have wider spreads
- Volatile instruments (some indices, metals, crypto) can have spreads that widen during fast movement
Explore markets: ZenithFX Trading Markets
Reason #5: Market Events (News, Holidays, Low Volume)
Spreads often widen during:
- major news events (CPI, NFP, rate decisions)
- unexpected headlines
- holidays (lower volume)
- market opens and closes
Best habit: check the calendar and avoid trading thin markets when you’re still learning.
How Spread Affects Your Trading (What Beginners Should Know)
✅ 1) Spread impacts your entry cost
You begin slightly negative because you enter at Ask and mark at Bid.
✅ 2) Spread affects stop loss and take profit triggers
Stops/targets can trigger earlier than expected in fast markets, especially when spreads widen.
✅ 3) Spread matters more for short-term trading
If you’re scalping or taking tiny targets, spread becomes a bigger percentage of your potential profit.
For swing trading, spread still matters—but it’s usually less important than for very short-term strategies.
Common Beginner Mistakes With Spread
❌ Mistake #1: Trading during high-impact news with tight stops
✅ Fix: Reduce risk, widen stops if needed, or wait until after the news settles.
❌ Mistake #2: Using very small take profit targets
✅ Fix: Make sure your profit target is worth the spread cost.
❌ Mistake #3: Confusing spread with “the broker taking money”
✅ Fix: Spread is a normal market cost and changes based on liquidity/volatility.
How to Trade Smarter Around Spread (Beginner Rules)
- Trade liquid instruments (start with major Forex pairs)
- Avoid trading right before major news releases
- Don’t use extremely tight stops when markets are volatile
- Be careful with very small profit targets (spread matters more)
- Practice on demo and watch spread changes in real time
Practice on demo: ✅ Open a Demo Account
Quick Spread Cheat Sheet
- Spread = Ask – Bid
- It’s a key trading cost in Forex/CFDs
- Spread can widen with low liquidity and high volatility
- Spread often changes by time of day and market events
- Spread matters most for short-term trading
Final Thoughts
Spread is normal—and once you understand it, trading becomes much less confusing.
The goal is not to obsess over spread. The goal is to:
- trade liquid markets
- avoid high-volatility traps
- use smart risk management
Explore Forex Trading on ZenithFX
Risk Disclaimer
Risk Warning: Forex and CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. Ensure you understand how CFDs work and whether you can afford to take the high risk of losing your money.
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