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Negative slippage can cut into your trading profits and separate newbies from experienced traders. With the right strategy, you can minimize slippage and its adverse effects. But first, you must understand the fundamentals of the bid-ask spread, slippage, and related concepts.
In this guide, you’ll learn about the bid-ask spread and slippage, and how to handle their impact.
Key Takeaways:
Liquidity measures how easily a cryptocurrency can be bought or sold in the market without significantly affecting its market value. A coin or token with strong liquidity will have many sellers and buyers, and a relatively deep order book waiting for orders.
This abundance of buyers and sellers narrows the bid-ask spread. As a result, the bid-ask spread is a good measure of liquidity. The smaller the bid-ask spread, the stronger the liquidity of the cryptocurrency asset. Likewise, with lower liquidity comes more potential for significant price swings and slippage.
Order Book: A ledger that displays all buy and sell instructions (orders) from the market. The order book shows the current market or order depth.
To execute a trade, bids, and asks are paired up as soon as their requirements are fulfilled. There are two main types of orders:
Order depth: The total number of limit orders on the order book ledger. Order depth can be calculated by adding up the volume of limit orders placed.
For example, the order depth in the image below shows in real-time the number of buyers and sellers with orders awaiting execution in the order book.
Under the “Price” column, the prices in red are the selling prices, and the prices in green are the buying prices.
The “Quantity” column shows the number of units at the stipulated price, while the “Total” column represents the corresponding accumulated number of contracts.
In this illustration, the current best ask price is “Sell” $31,985.50, and the best bid price is “Bid” $31,985.00. In order for Bitcoin to go up to $31,986.00, buyers must take up all of the 2,806,583 contracts at $31,985.50.
The greater the depth of an order book, the better its liquidity. A deep market offers the ability to maintain prices when executing large transactions. Greater order depth also means a lower chance of price manipulation.
Slippage: The difference between the expected price of a trade and the actual price at which it executes. There might not be enough interest or volume to fulfill an order at the expected price, especially when executing large orders.
When this happens, a part of the order can be filled at the next available price. Slippage also occurs in times of high market volatility. At such times, the bid-ask spread may change between the time a trader places a market order and the time the market maker or exchange executes the order. Slippage is then negatively correlated with liquidity. Liquidity and slippage have an inverse relationship: when liquidity is high, slippage is low, and with low liquidity, slippage is high.
Poor liquidity leads to price instability for an asset, which means that slippage and price manipulations are likely to increase. Lower liquidity also means longer waiting times, which could adversely affect traders and broker liquidity providers, especially during a market swing. A good trader understands how liquidity impacts their transactions and develops strategies for picking assets with suitable liquidity.
The bid-ask spread is an important trading concept to understand. Here’s how it works.
Bid vs. Ask
The bid price is the price that a trader is willing to pay for an asset. When you place a buy order, you bid for the asset. Meanwhile, the ask price is the sale price of a crypto asset that will seal the deal.
The Spread
The bid-ask spread is the difference between the lowest price a seller is willing to accept (the ask price) and the highest price a buyer is willing to pay (the bid price). In markets, the spread results from the difference between buyers’ and sellers’ limit orders. These orders show up as bids and asks in an order book.
Comparing the bid-ask spread of different crypto assets is best done using percentages. The formula for the bid-ask percentage calculation is simple:
Bid Ask Spread Percentage = [(Ask Price − Bid Price) ÷ Ask Price] × 100
For instance, a coin trading at $3.95/$4.05 means the bid price is $3.95, and the ask price is $4.05. You can calculate the bid-ask spread percentage using the given formula:
[(4.05 − 3.95) ÷ 4.05] × 100 = 2.5% (rounded up to the nearest tenth)
The smaller the bid-ask spread percentage of a crypto asset, the more liquid it tends to be. If you're executing substantial market orders, you'll have a lower risk of paying an unexpected price. This means your slippage is minimal.
Slippage happens when you create a market order, and an exchange matches your buy or sell request with the limit orders in the order book. The order book will try to fill your order at the best price. However, if there is an insufficient volume at your desired price, the order book will go up the order chain to the next best price. In the end, your order may execute at a less desirable price than expected.
If you want to quickly buy 1,000 units of an asset currently trading at $100 but the market doesn't have enough liquidity to execute your order, your execution price will be different. You'll have to take the orders above your bid price of $100 until your order is completed. This will make your average purchase price higher than the intended $100.
Slippage can be common in decentralized exchanges, especially without dedicated automated market makers. It's more likely to occur in high volatility, low liquidity markets.
Positive Slippage
Slippage isn't always bad for business. Positive slippage occurs when you place a buy order and the asset price decreases. That is, the final execution price is lower than expected for your buy market order. Similar positive slippage occurs when you make a sell order and the price increases. If the final execution price is better than the expected one, your positive slippage actually results in a more favorable trade for you.
Negative Slippage
Negative slippage is a major concern for any trader. If the price of an asset increases after placing a buy order, or reduces after you enter a sell order, you may face negative slippage.
Slippage is inevitable during fast-paced trading when you’re trying to execute orders quickly. However, you can minimize negative slippage by:
Trading in cryptocurrencies can be highly profitable, but it carries risks. Aside from the inherent market volatility, there is also the potential for trading losses from the bid-ask spread and slippage. While you can't always avoid these trading costs, it pays to factor them in while making trade decisions. This is especially true for larger volume trades, where the average price per cryptocurrency might end up higher or lower than expected.
Financial markets are structured to provide traders with as many trading options as possible, but market participants still determine whether slippage occurs, as well as its ultimate impact. Informed traders pay keen attention to liquidity constraints to maximize trading profits.