Prediction markets are seeing another major growth phase. Last week, Kalshi and Polymarket recorded a combined $4.4 billion in weekly non-sports trading volume, the highest level ever seen for this category.
While sports markets have attracted huge attention during the ongoing FIFA World Cup, what stands out is that users are also becoming increasingly active in non-sports markets. This suggests that prediction markets are evolving beyond sports betting into platforms where people trade on politics, economics, technology, and global events.
Kalshi Leads the Surge
Kalshi was responsible for most of the record-breaking activity, generating around $3.8 billion in weekly non-sports volume. The platform has benefited from its regulated structure and user-friendly mobile experience, making it easier for retail traders to participate in prediction markets.
Its strong growth indicates that many users who joined for sports events are now exploring a wider range of markets.
Polymarket Continues Strong Growth
Polymarket added nearly $573 million in weekly non-sports trading volume while also recording record activity in sports markets. The platform remains popular with international users, many of whom initially joined to trade World Cup-related contracts before expanding into political and macroeconomic predictions.
Although Polymarket's non-sports volume is smaller than Kalshi's, overall activity remains close to its all-time highs.
The World Cup Effect
The FIFA World Cup has acted as a powerful onboarding event for prediction markets. Millions of users created accounts to trade sports outcomes, but many stayed after funding their accounts and began participating in other markets.
This creates an important growth opportunity. Instead of attracting users for a single event, prediction market platforms may be building long-term communities that trade year-round.
Sports serve as the entry point, while politics, finance, crypto, AI, and global events become the reasons users continue using the platforms.
The Real Challenge Starts After July 19
The biggest question is whether this momentum will continue once the World Cup ends.
If weekly non-sports volume falls back toward previous levels of around $2 billion, it would suggest that much of the recent activity was driven by temporary sports interest.
However, if volumes remain close to current levels, it would indicate that prediction markets have successfully converted short-term sports traders into long-term users.
That would represent a major milestone for the industry.
Why This Matters
Prediction markets are becoming more than platforms for entertainment. They are increasingly being used to forecast elections, economic data, crypto trends, company decisions, and major global events.
Higher trading volume improves liquidity, making markets more efficient and attractive to both retail and institutional participants.
If current growth continues beyond the World Cup, prediction markets could become one of the fastest-growing sectors in digital finance, with Kalshi and Polymarket leading the way.
Final Thoughts
The record $4.4 billion in weekly non-sports trading volume shows that prediction markets are entering a new stage of adoption. While the World Cup provided the initial catalyst, the coming weeks will reveal whether this growth is sustainable.
If users continue trading after the tournament ends, it would signal that prediction markets are no longer dependent on major sporting events and are becoming a mainstream destination for forecasting real-world outcomes.
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