Market making provides real, two-sided liquidity that independent traders can buy from and sell to. Wash trading is buying and selling with yourself (or a coordinated party) to create the false appearance of volume or price activity. Wash trading is market manipulation: in October 2024 the U.S. SEC and DOJ charged firms that described themselves as market makers with wash trading on behalf of token promoters, and the EU’s MiCA regulation prohibits market manipulation involving crypto-assets.
Key takeaways
- Market making: resting orders that other people trade against. Wash trading: self-trades with no change in ownership or economic purpose.
- The SEC alleged firms used bots that at times generated billions of dollars of artificial volume per day.
- Token promoters who hired those firms were charged too.
- Exchanges and data sites screen for fake volume; CoinMarketCap says manipulated figures lead to permanent disqualification.
The difference in one table
| Market making | Wash trading | |
|---|---|---|
| What happens | Resting bids and asks that others trade against | Matched buys and sells between the same or coordinated parties |
| Change in ownership | Yes, with independent counterparties | No real change |
| Effect on market | Tighter spreads, more depth | Fake volume and misleading price signals |
| Who benefits | Traders, the project, the exchange | Whoever is deceiving buyers |
| Legal status | Normal market activity | Manipulation and fraud in many jurisdictions |
The 2024 U.S. cases
On 9 October 2024 the SEC announced fraud charges against ZM Quant, Gotbit, and CLS Global, which it called “so-called market makers”, and nine individuals. According to the SEC, token promoters hired ZM Quant and Gotbit to provide “market-manipulation-as-a-service”, including wash trading using algorithms that at times generated quadrillions of transactions and billions of dollars of artificial trading volume each day. ZM Quant and CLS Global were also alleged to have manipulated the market for a token created at the FBI’s direction as part of the investigation.
The U.S. Attorney’s Office for the District of Massachusetts announced parallel criminal charges against 18 individuals and entities, in what was reported as Operation Token Mirrors.
EU rules
MiCA (Regulation (EU) 2023/1114) includes a title on preventing and prohibiting market abuse involving crypto-assets, including a prohibition on market manipulation. Exchanges operating in the EU are expected to detect and report suspicious trading.
How to stay on the right side
- Contract for spread, depth, and uptime, never volume. See KPIs.
- Include an explicit anti-manipulation clause with termination rights.
- Ask for trade-level data and check it.
- Avoid any vendor that offers “volume packages” or “chart support”. See red flags.
Frequently asked questions
Is wash trading illegal in crypto?
It can be prosecuted as fraud and market manipulation in many jurisdictions. In the U.S., the DOJ and SEC brought criminal and civil cases in October 2024. In the EU, MiCA prohibits market manipulation involving crypto-assets. Exchanges also prohibit it in their terms.
How can a project tell if its market maker is wash trading?
Warning signs include volume that rises without changes in depth, trades that print without moving the book, a large share of volume attributed to the market maker, and reports that focus on volume rather than spread and depth. Ask for trade-level data and check it.
Is buying volume ever acceptable for a listing?
No. Exchanges and aggregators look at the sources of volume, CoinMarketCap says projects that manipulate figures are permanently disqualified, and the people who pay for fake volume have been charged alongside the firms that provide it.
Sources
- U.S. SEC press release 2024-166: SEC charges three so-called market makers and nine individuals (9 Oct 2024)
- U.S. DOJ, District of Massachusetts: Eighteen individuals and entities charged (Operation Token Mirrors)
- Regulation (EU) 2023/1114 (MiCA), Title VI on market abuse, EUR-Lex
- CoinMarketCap: Listings Criteria (house rules on manipulated figures)
Last reviewed 11 November 2026. Exchange and platform policies change; always confirm on the official page before acting.
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