Polymarket has over 1.7 million trading accounts, which is quite eye-opening. According to on-chain data, only 30% of traders are profitable, meaning the vast majority of trading addresses (about 70%) are in a loss state. Want to join the profit club? Making more than $1,000 in profit can get you into the top 4.9%. But that's not even the most astonishing part—the wealth concentration in the entire market is extremely skewed, with less than 0.04% of top addresses capturing over 70% of the total gains. In other words, retail traders are engaging in high-frequency betting, while a small number of players are earning the majority of the profits. This data reflects the participant structure and market concentration issues in prediction markets, which are worth deep consideration.