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▲ Prediction market, World Cup, Cryptocurrency, Bitcoin (BTC), Ethereum (ETH)/AI generated image
While Polymarket is fueling the prediction market trading frenzy with the World Cup special, it has been revealed that over 45,000 closed markets had no trading volume at all.
According to BeInCrypto, a cryptocurrency-focused media outlet, on July 3 (local time), a CNBC analysis showed that approximately 70% of markets closed on Polymarket from 2021 to the end of May 2026 had reported trading volumes of less than $10,000. This implies that the entire market's money was concentrated in a few large contracts, leaving many markets in a liquidity vacuum.
CNBC extracted closed market data from Polymarket's Gamma API. This API calculates the nominal trading volume for both sides of a trade. The analysis showed that less than 10% of closed markets recorded trading volumes between $100,000 and $1 million. Markets with no trading volume at all exceeded 45,000, accounting for approximately 5% of the total.
Joshua Della Vedova, a professor of business administration at the University of San Diego, analyzed that over 80% of the trading volume in small markets with less than $10,000 came from bots. He defined a bot as a wallet that made more than 50 transactions per day or more than 1,000 transactions in total. These bots earned approximately $1.2 million in markets under $10,000 and about $50.5 million in markets between $1 million and $10 million.
Della Vedova stated, “Bots are making money in all markets. Bots prefer larger markets because they make money on every trade, but they trade across all segments.” The report also noted that Kalshi recorded a significant number of shallow markets based on Dune on-chain data analysis. However, Kalshi's Dune nominal trading volume figures only reflect one side of the trade, unlike Polymarket's Gamma API.
On the other hand, the overall trading volume of prediction markets surged explosively with the World Cup. According to CryptoRank, the weekly World Cup-related trading volume on major platforms jumped from $65 million on June 1 to $5.4 billion on June 29. It peaked at $5.6 billion during the week of June 22. Kalshi led this increase, and BeInCrypto reported a clear polarization where high-value contracts drive market growth while tens of thousands of markets have little to no trading.
[Article Summary]
-Approximately 70% of Polymarket's closed markets had reported trading volumes of less than $10,000, and over 45,000 had no trading volume at all.
-In small markets with less than $10,000 in trading volume, bots accounted for over 80% of the trading volume.
-Weekly trading volume for World Cup prediction markets surged from $65 million on June 1 to $5.4 billion on June 29.
*Disclaimer: This article is for investment reference only, and we are not responsible for any investment losses based on it. The content should be interpreted for informational purposes only.*
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