What Is Slippage? Price Difference During Trade Execution

What Is Slippage?

Slippage is the difference between the expected price of a trade and the actual price at which the trade is executed.

It occurs when market conditions change between the time an order is placed and when it is filled.

Why Slippage Occurs

Slippage happens due to:

Low liquidity
High market volatility
Large order sizes
Network delays (on-chain trades)

It can be either positive or negative.

How Slippage Works

Trader submits an order
Market price moves
Order fills at available prices
Final execution price differs
Trade completes

Slippage reflects real-time market dynamics.

Positive vs Negative Slippage

Type	Description
Positive Slippage	Better price than expected
Negative Slippage	Worse price than expected

Slippage in CEX vs DEX

Feature	CEX	DEX
Cause	Order book depth	Pool size
User Control	Limited	Slippage tolerance
Fees	Taker fees	Gas fees
Execution	Instant	Network dependent

When Slippage Is Most Likely

Market orders
Low-liquidity pairs
High volatility periods
Large trades

Advantages and Risks of Slippage

Aspect	Impact
Advantage	Faster execution
Risk	Unexpected pricing
Control	Via order type
Awareness	Essential for traders

How to Reduce Slippage

Use limit orders
Trade in liquid markets
Reduce order size
Adjust slippage tolerance (DEX)

Frequently Asked Questions (FAQ)

Is slippage always bad?
No, it can be positive.

Do limit orders eliminate slippage?
They greatly reduce it.

Is slippage common on DEXs?
Yes, especially in small pools.

Can slippage cause failed trades?
Yes, if tolerance is exceeded.

Conclusion

Slippage is a natural part of trading that reflects changing market conditions. Understanding and managing slippage helps traders improve execution quality and reduce unexpected costs.