Wash Trading
Wash trading means trading with yourself to create fake volume or prices. Learn how it works, why it is illegal, its role in crypto and how to spot it.
A wash trade is a trade in which the buyer and seller are effectively the same person or group, so no real change in ownership or risk occurs. Its usual purpose is to create a false impression of trading activity, to make an asset look more popular, liquid or valuable than it is. Wash trading is illegal in regulated securities and futures markets. It has been widespread on some unregulated crypto exchanges and in certain NFT markets. Despite the similar name, it is different from the wash sale rule, which is a tax rule. See Wash Sale Rule.
How wash trading works#
| Method | Example |
|---|---|
| Self trades | The same account places matching buy and sell orders |
| Coordinated accounts | Two accounts controlled by one person trade back and forth |
| Pre arranged trades | Parties agree to offset trades with no market risk |
| Exchange generated volume | A venue's own bots trade with each other to inflate reported volume |
Why people do it#
- Inflate volume to attract traders or listings and rank higher on data sites.
- Create a false price for a thinly traded asset, such as an NFT, to support loans or sales.
- Earn rewards from trading competitions, fee rebates or token incentives based on volume.
- Tax manipulation by creating artificial losses, which tax rules separately address.
Legal status#
| Market | Status |
|---|---|
| US futures | Prohibited by the Commodity Exchange Act |
| US securities | Prohibited as manipulation under securities laws |
| EU and UK | Prohibited under market abuse rules; MiCA extends rules to crypto in the EU |
| Unregulated crypto venues | Often unenforced, though regulators have brought cases against some firms |
Regulators have pursued wash trading in crypto, including cases against market making firms accused of generating fake volume for tokens.
Prevalence in crypto#
Several studies have estimated that a large share of reported volume on unregulated crypto exchanges was wash trading, particularly in the late 2010s. Estimates vary by study, period and exchange, but the consistent finding is that reported volume on some venues was far higher than genuine activity. Volume on regulated exchanges and major venues is generally considered more reliable. See Crypto Spot Trading and Centralized vs Decentralized Exchanges.
Spotting suspicious volume#
| Warning sign | Why it matters |
|---|---|
| Volume far above similar assets | Popularity not matched elsewhere |
| Volume without order book depth | Real liquidity is missing |
| Trade sizes in repeating round numbers | Bots trading in patterns |
| Volume that stops when incentives end | Volume driven by rewards |
| Price barely moves despite huge volume | Trades offset each other |
Compare volume across several reputable exchanges and look at order book depth near the price, which is harder to fake than reported volume. See Volume and The Order Book and Market Depth.
Why it matters for analysis#
Volume based indicators and liquidity estimates assume volume is real. On venues with wash trading, signals such as volume breakouts and relative volume can be meaningless. Use data from reliable venues for analysis. See Relative Volume and Volume Analysis Basics.
Frequently asked questions#
What is wash trading?#
Trading with yourself, or with accounts you control, to create artificial volume or prices without any real change in ownership.
Is wash trading illegal?#
Yes in regulated securities and futures markets, and increasingly in crypto under new rules; enforcement on unregulated venues has been weaker.
What is the difference between wash trading and a wash sale?#
Wash trading is a form of market manipulation; a wash sale is a tax rule about claiming losses when you rebuy the same asset within a set period.
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Mentioned in
- Spoofing and LayeringThe Trading Industry
- Market Maker Manipulation: Myth and RealitySmart Money Concepts