Wash Trading in Crypto: What It Is, How It Works, and How to Spot Safe Exchanges in 2026

The FBI built a token. Listed it on the market. Then waited.

The token was called NexFundAI — marketed as an artificial intelligence project for decentralised finance. It had a whitepaper, a website, a team. All of it was fake, constructed by federal agents as a honeypot to expose the firms selling artificial trading volume to crypto projects.

They did not have to wait long. Within weeks, several companies offered to inflate NexFundAI's volume for a fee. In October 2024, the Department of Justice announced 18 charges, the arrest of three individuals across Texas, the UK and Portugal, and the seizure of more than $25 million in cryptocurrency. Sixty automated trading bots were disabled.

This was not a one-off scandal. It was a window into standard industry practice.

What Is Wash Trading in Crypto?

Wash trading is the practice of buying and selling the same asset to yourself — or through connected entities — to create the illusion of trading activity. The price may stay flat: the goal is not profit on the individual trade, but making an asset appear far more liquid and in-demand than it actually is.

In traditional financial markets, it has been banned for decades. In crypto, it was for years treated as an open secret — frowned upon but rarely prosecuted, and commercially rational for everyone except the retail investor who buys based on a volume number that means nothing.

The economic logic is simple. An exchange with high volume ranks higher on CoinMarketCap and CoinGecko, attracts more users, commands higher listing fees from new token projects, and can justify premium trading commissions. A token with high volume looks legitimate, secures listings on better exchanges, and attracts capital allocation from funds. Everyone benefits from the illusion — except the person who buys believing demand is real.

How Wash Trading Works: Matched Buy/Sell and Disperse Wallets

Chainalysis, in its 2025 Crypto Crime Report published February 2025, identified two dominant patterns of wash trading detected on DEXs throughout 2024:

Heuristic 1 — Matched Buy & Sell: purchase and sale transactions executed within 25 blocks (approximately 5 minutes), with less than 1% volume difference, repeated at least 3 times by the same address. Chainalysis identified $704 million of this activity on Ethereum, BNB Chain and Base in 2024. A single address executed over 54,000 transactions matching this pattern.

Heuristic 2 — Disperse-Based: a single entity controls 5 or more wallets that trade the same asset between themselves. This more sophisticated method generated $1.87 billion in suspicious volume in 2024. A single bad actor identified by Chainalysis accounted for 16.7% of all wash trades flagged that year.

On centralised exchanges, the historical picture is even worse. A 2022 Forbes analysis of 157 exchanges found that over 51% of declared trading volume was likely fake or "non-economic." A subset of 35 exchanges showed an 80–99% discount between real and stated volume: $7.7 billion in actual trades against $59 billion reported. Bitwise had already flagged the problem in 2019, estimating that 95% of volume on CoinMarketCap at that time was fabricated.

The FBI Sting That Exposed the Industry

Gotbit was one of the largest market-making firms in the crypto industry. Founded by Aleksei Andriunin, it had built a business around inflating trading volumes for meme tokens — Saitama, Robo Inu — presenting this as a professional service with contracts, clients, and structured pricing.

When NexFundAI appeared, Gotbit offered its services. It was a trap.

The October 2024 indictments named Andriunin alongside executives from Gotbit, ZM Quant, CLS Global, MyTrade MM, Saitama LLC, Robo Inu Finance, VZZN, and Lillian Finance. Andriunin subsequently pleaded guilty.

In March 2026, a second wave of indictments targeted four firms — Gotbit, Vortex, Antier Solutions, and Contrarian — charging 10 additional individuals. Three executives were arrested in Singapore and extradited to the United States: Gleb Gora (CEO of Vortex, 24, Russian national), Manu Singh (CEO of Contrarian), and Vasu Sharma (BD at Contrarian). Maximum sentences reach 20 years under the wire fraud statute (18 U.S.C. §§ 1343/1349).

Fernandes continued: "It's not just rogue actors. It's projects, market-making firms and even venues themselves, all benefiting from higher reported volume. Volume attracts attention, listings and capital, so inflating it becomes a shortcut to relevance."

The Scale: $2.57 Billion in Fake DEX Volume — and the Bigger CEX Problem

A peer-reviewed working paper from NBER (National Bureau of Economic Research), authored by Cong, Li, Tang and Yang and published in Management Science in 2023, analysed 29 crypto exchanges and found a statistically significant pattern:

• Regulated exchanges: normal trading patterns comparable to traditional financial markets
• Unregulated exchanges: average wash trading exceeding 70% of declared volume
• The phenomenon generates "trillions of dollars in fabricated annual volume"
• Artificial volume temporarily distorts prices and improves exchange rankings

A separate Columbia University study (November 2025), covering prediction market Polymarket, found approximately 25% of its historical volume showing signs of wash trading. The problem is not sector-specific.

MiCA and ESMA: How EU Law Now Criminalises Wash Trading

The regulatory picture for European investors has changed structurally.

The MiCA Regulation (Markets in Crypto-Assets), in force since July 2025, explicitly classifies wash trading as market abuse under Article 91. CASPs (Crypto Asset Service Providers) licensed in the EU are now legally required to:

1. Implement real-time trading surveillance systems
2. Identify patterns consistent with wash trading or other market abuse
3. Submit Suspicious Transaction Reports (STRs) to ESMA for any flagged activity
4. Risk licence revocation for failure to report or complicity in manipulation

The ESMA guidelines on market abuse for CASPs become fully operative on July 28, 2026. From that date, the enforcement framework applies in full across all 27 EU member states.

Which Exchanges Have Surveillance Systems in 2026?

Not all exchanges carry the same risk profile. EU-authorised CASPs are legally obligated to implement anti-market-abuse systems. Among the exchanges currently authorised or in advanced authorisation under MiCA:

Exchange	CASP Country	MiCA Status	Surveillance
Bitvavo	Netherlands	Authorised	Mandatory (STR)
Kraken Europe	Ireland	Authorised	Mandatory (STR)
Coinbase (EU)	Ireland	Authorised	Mandatory (STR)
Bitpanda	Austria	Authorised	Mandatory (STR)
Crypto.com (EU)	Netherlands	Authorised	Mandatory (STR)
Binance	France (CASP pending)	In progress	Voluntary (pre-MiCA)
Bybit	No EU entity	Non-compliant	Unverifiable
KuCoin	No EU entity	Non-compliant	Unverifiable

For authorised CASPs, declared volumes are subject to external verification by the relevant national competent authority — the DNB in the Netherlands, the CBI in Ireland, the FMA in Austria. This is not an absolute guarantee, but it represents a fundamental shift from the previous unregulated baseline.

How to Detect Wash Trading on an Exchange

Positive signals (volume is likely real):

• CASP licence in the EU or equivalent (FinCEN, FCA, MAS) — verifiable on public registers
• Volume consistent with order book depth: high volume on pairs with tight spreads indicates genuine liquidity
• High CoinGecko Trust Score (based on web traffic correlation and liquidity audits)
• Published surveillance reports or third-party audits
• Volume that reacts to market events — spikes during volatility, dips during quiet periods

Red flags (volume may be fabricated):

• Very high volume on obscure pairs with wide bid-ask spreads
• Flat volume during flash crashes or major macro events
• No public information on compliance team or surveillance infrastructure
• Registered in jurisdictions with no crypto oversight (Seychelles, Marshall Islands, etc.)
• Not listed in the ESMA CASP register or any equivalent regulated register

The Andriunin conviction, the Singapore extraditions, and the ESMA guidelines taking effect in July 2026 represent a genuine inflection point. Wash trading will not disappear overnight — but for the first time, anyone running a volume-inflation operation inside the EU risks losing their operating licence, not just a fine. And anyone running one from abroad risks a US federal indictment.

The volume numbers you see on any exchange screen have never been more political.