Exploiting Self-Matching Market-Maker Orders on Crypto Exchanges
Summary
The document explains how a crypto exchange market-making bot can create artificial trading activity by placing buy and sell orders near the current market, sometimes matching its own orders to produce chart history. Because those orders are not perfectly synchronized, network and matching delays can leave one side exposed to other traders. The article describes an opposing high-frequency tactic: repeatedly place and cancel orders around the best bid or ask to capture a market maker’s exposed order, then reverse the position to seek a spread gain.
It presents an example involving an ETH/USDT market and claims the tactic was profitable in a live run, but provides no independently verifiable performance data in the text. The method depends on identifying the target market maker’s order behavior, winning execution priority, and covering fees and inventory risk. The article also suggests defenses for market makers, including sequencing their own orders and keeping quotes within prices that can be hedged elsewhere. Its claims should be treated as anecdotal rather than general evidence of reliable profitability.
Key ideas
- Self-matching market-making orders can create artificial trades and chart activity.
- Execution delays can expose one side of a market maker’s paired orders to other traders.
- The described tactic uses frequent placement and cancellation near the best quotes to target exposed orders.
- Profitability depends on execution success, fees, and the risk of ending up with an unhedged position.
- Market makers can reduce exposure by sequencing orders or keeping trades within hedgeable price ranges.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.