Crypto Gloss

Wash Trading

Wash trading is the act of buying and selling the same asset simultaneously (or in rapid succession through related accounts) to artificially inflate reported trading volume without any genuine change in ownership. The practice creates the appearance of market activity and liquidity without any real economic transfer occurring. It is explicitly illegal in US regulated securities and commodities markets; in crypto, it flourishes due to limited regulatory enforcement and is widespread across spot exchanges, NFT marketplaces, and DeFi protocols.

How It Works

The following sections cover this in detail.

Basic Mechanics

  1. Trader A places a sell order for 100 BTC at $50,000
  2. Trader A (via a second account or bot) immediately buys those 100 BTC at $50,000
  3. No economic change: Trader A still holds 100 BTC and has roughly the same USD (minus fees)
  4. The exchange’s recorded volume increases by 100 BTC × $50,000 = $5M

This can be automated at high frequency, generating massive reported volume at very low real cost (just the trading fees, or zero fees on some exchanges).

Why Exchanges Tolerate or Encourage It

Exchanges benefit from wash trading because:

  • Rankings: CoinMarketCap, CoinGecko, and similar aggregators rank exchanges by volume — high volume attracts users and projects listing tokens
  • Listing fees: Projects pay more to list on “high volume” exchanges
  • Rebates: Some exchanges offer market maker fee rebates that effectively pay wash traders to trade

Scale in Crypto

Academic and industry research consistently finds wash trading comprises a substantial share of reported crypto volume:

  • Bitwise (2019): Analysis found that approximately 95% of reported Bitcoin trading volume on unregulated exchanges was wash traded or fake
  • National Bureau of Economic Research (2022): Study found ~70% of volume on unregulated exchanges was wash traded; regulated exchanges (Coinbase, Kraken, Gemini) had negligible wash trading
  • Chainalysis (2023): NFT wash trading volume exceeded $580M in 2022, with certain NFT platforms generating 80%+ artificial volume

NFT Wash Trading

NFT wash trading took on a new dimension because NFT creators earn royalties on secondary sales. By wash trading their own NFTs — selling them between their own wallets for artificially high prices — creators could:

  1. Fake provenance: Create the appearance that an NFT sold for a high price, establishing artificial “market value”
  2. Earn royalties from themselves: On platforms paying royalties, each sale generates a royalty payment (self-payment with trading profit minus royalty)
  3. Qualify for airdrop criteria: Many protocol airdrops rewarded traders by volume — wash trading inflated volume metrics to capture more airdrop rewards

Regulatory Status

United States:

  • Wash trading is explicitly illegal under the Commodity Exchange Act (for commodities) and Securities Exchange Act (for securities)
  • The CFTC has brought wash trading enforcement actions against crypto exchanges
  • Most crypto spot trading exists in a regulatory gray zone, limiting enforcement

EU: Market Abuse Regulation (MAR) prohibits wash trading in traditional markets; MiCA (2024+) extends similar provisions to crypto assets

Practical enforcement: Due to the pseudonymous nature of crypto and exchange jurisdiction complexity, wash trading enforcement has been rare compared to its prevalence

Common Misconceptions

“High volume always means real liquidity”

Entirely false in crypto. Reported volume figures from unregulated offshore exchanges are largely unreliable. The “real” volume for most tokens is a fraction of what is reported. Bitwise’s analysis is the landmark study demonstrating this.

“Wash trading affects only obscure tokens”

Studies found wash trading even on major tokens like Bitcoin and Ethereum, though primarily on smaller offshore exchanges rather than on Coinbase or Kraken.

“DeFi DEXes can’t wash trade because it’s all on-chain”

False. On-chain wash trading exists and is detectable via blockchain analytics. A trader controlling multiple wallets can route trades through a DEX, paying gas and swap fees while generating artificial volume.

Social Media Sentiment

Wash trading is one of the more acknowledged forms of crypto market manipulation, even within crypto communities. It’s frequently cited by crypto critics as evidence that crypto markets are manipulated and unreliable. The Bitwise report is widely cited. Within crypto, sophisticated participants largely accept that volume figures are inflated and apply mental discounts. The NFT market in particular burned many buyers who paid premiums based on manipulated price histories.

Last updated: 2026-04

Related Terms

Sources

  • Bitwise Asset Management. (2019). Analysis of Real Bitcoin Trading Volume. Presentation to the SEC.
  • Cong, L. W., Li, X., Tang, K., & Yang, Y. (2023). Crypto Wash Trading. Management Science.
  • Chainalysis. (2023). The Chainalysis 2023 Crypto Crime Report. Chainalysis.