In Polymarket events across the 0-100% probability range:

The 0-10% and 90%-100% probability intervals have the highest number of trading users and transactions. Both intervals have accumulated over 1.8 million trading users and over 100 million transactions, significantly higher than other intervals.

Trading volume ranking generally follows the sequence from low to high probability. The 90-100% probability interval has accumulated trading volume exceeding $22 billion, almost equal to the sum of all other intervals combined; the second highest is the 41-50% probability interval, exceeding $5.2 billion.

Interestingly, while 0-10% is conventionally considered the least likely to occur, from redeemed trades, bets on 0-10% achieved a win rate of 9.185%, placing it in the middle range; the lowest win rate is actually in the 41-50% middle probability interval, where information is relatively symmetric and win rates are at their lowest. Although the 91-100% win rate is the highest, the odds are actually quite mediocre—if one continuously places large bets, they will definitely end up losing everything eventually.

Of course, there are notable limitations in the statistics. Many users who lost everything simply chose not to redeem, making it difficult to capture those cases, so the actual win rate for retail traders may be even lower.