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Why Your Crypto Trades Sometimes Cost More Than Expected: Understanding Slippage

BeginnerLast Updated February 12, 2026
Cryptocurrency Account Security
Why Your Crypto Trades Sometimes Cost More Than Expected: Understanding Slippage
Have you ever placed a crypto trade expecting one price, but received a slightly different execution price?
That difference is called slippage: the gap between your expected price and the actual filled price.

1. What Exactly Is Slippage?

Slippage = Expected Price − Actual Execution Price
Example: You want to buy 1 ETH at 3,000, but due to market conditions, your order is filled at 3,015. That’s $15 in slippage.

2. Why Does Slippage Happen?

  1. Market Volatility: Prices move fast. In the milliseconds between order and execution, the price can change, especially during high-volatility periods like news events or high trading volume.

  1. Low Liquidity: Liquidity refers to how easily an asset can be bought or sold without impacting its price. If there aren’t enough buy/sell orders near your target price, your trade may "slip" to the next available price.

3. How Slippage Impacts Your Trades

  • Higher Costs: Paying more to buy or receiving less when selling.
  • Strategy Disruption: Especially affects scalping, arbitrage, and stop-loss orders.
  • Large Order Impact: The bigger your order, the more slippage you might experience.

4. How to Reduce Slippage

  1. Use Limit Orders: Set your exact price. The trade only executes if the market reaches that price. (Note: Your order may not fill if the price doesn’t reach your limit.)
  1. Trade High-Liquidity Pairs: Stick to major pairs like BTC/USDT or ETH/USDT, where order books are deeper.
  1. Avoid Extreme Volatility Times: News events, major economic releases, or low-liquidity hours (like weekends) often see higher slippage.
  1. Split Large Orders: Break big trades into smaller chunks to reduce market impact.

5. KuCoin Tools to Help Manage Slippage

KuCoin offers built-in features to give you more control:
✅ Post-Only Orders – Ensures your order adds liquidity (maker order), helping avoid taker fees and reduce slippage.
✅ Real-Time Order Book – Visually check market depth before trading.
✅ IOC (Immediate-or-Cancel) Orders – Fills immediately at available prices, cancels the rest. Ideal for partial fills without unwanted slippage.
✅ KuCoin Trading Bots – Like Grid Trading, which automates limit orders in a range, aiming for better average entry prices. (Link: https://www.kucoin.com/trade/strategy/BTC-USDT)
 
KuCoin Trading Bots

6. Final Tip: Always Check the Order Book

Before you trade, glance at the order book.
  • Tight spread between bid and ask? ✅ Good sign.
  • Deep order book with large volumes near your price? ✅ Even better.
  • Thin order book with big gaps? ⚠️ Slippage risk is higher.
Disclaimer: This content is for educational purposes only and not financial advice. Trading carries risk. Consider your risk tolerance and trade responsibly.

Disclaimer: The information on this page may come from third parties and does not necessarily reflect KuCoin’s views. It is provided for general reference only and should not be interpreted as financial or investment advice.

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