Prediction Market Traders Push April 2026 Volume to $8.6B, Kalshi Takes the Lead

Key Takeaways:

• Kalshi posted $5.42B successful April 2026 taker volume, surpassing Polymarket’s $1.99B for the archetypal time.
• Polymarket collected $29.22M successful April fees contempt trailing Kalshi successful volume, signaling higher-value contracts.
• Prediction market unfastened involvement deed $1.11B connected May 1, 2026, with Kalshi and Polymarket holding 98% of it.

Kalshi Holds $630M successful Open Interest arsenic Sector-Wide OI Tops $1.1B astatine the Start of May

Essentially, prediction markets are platforms wherever participants bargain and merchantability contracts tied to the result of aboriginal events, from elections and sports to crypto prices and economical indicators. Contract prices bespeak the crowd’s corporate probability estimation of an outcome, settling astatine $1 if close oregon $0 if not.

The exemplary has roots stretching backmost to 19th-century predetermination betting connected Wall Street, and gained world credibility successful 1988 erstwhile University of Iowa professors launched the Iowa Electronic Markets to trial whether crowd-sourced declaration prices could outforecast accepted polls. It was realized that they could.

Commercial platforms followed, with Intrade drafting mainstream attraction successful the 2000s earlier U.S. ineligible unit unopen it down. Augur brought the conception to blockchain successful the 2010s, though the level ne'er gained meaningful traction. The existent inflection came successful the 2020s. Polymarket launched successful 2020, built connected Polygon and settled successful USDC.

The adjacent year, Kalshi received CFTC support arsenic a Designated Contract Market successful 2021, becoming the archetypal federally regulated prediction speech successful U.S. history. The 2024 U.S. statesmanlike predetermination pushed some platforms into mainstream sum and drove billions successful monthly volume. Total 2025 manufacture volume exceeded $63 billion, and monthly figures peaked adjacent $25.7 cardinal successful March 2026 earlier April settled astatine $8.6 cardinal successful taker terms.

Dune Analytics’ data from idiosyncratic @datadashboards, indicates that Kalshi generated $5.42 cardinal successful taker volume past month, giving it a wide pb implicit Polymarket’s $1.99 billion. The spread betwixt the 2 platforms has widened considerably since precocious 2025, erstwhile the brace traded person to parity. Predict.fun ranked 3rd with $579.2 cardinal successful April taker volume, followed by Opinion astatine $376.2 cardinal and Limitless astatine $205 million. All different platforms combined accounted for astir $12.2 million.

Image source: Dune

Monthly notional volume crossed the assemblage reached $29.8 cardinal successful April, the Dune dashboard shows. Kalshi led that metric arsenic well, logging $14.8 billion. Polymarket posted $9 cardinal successful notional terms, with its abstracted Polymarket U.S. merchandise contributing an further $1.26 cardinal aft the level re-entered the American marketplace legally successful precocious 2025 via the QCEX acquisition.

Prediction market transaction volume highlights an wholly antithetic story. Polymarket processed 87.4 cardinal transactions successful April compared to Kalshi’s 94.4 million. The 2 platforms unneurotic accounted for the overwhelming stock of the sector’s 184.3 cardinal full monthly transactions.

User counts remained Polymarket‘s clearest advantage. The level drew 678,342 unsocial users successful April, much than 8 times Kalshi’s implied idiosyncratic base. Limitless followed astatine 71,203 users, with predict.fun astatine 18,553 and Opinion astatine 3,423.

Image source: Dune

Open involvement crossed the assemblage stood astatine $1.11 cardinal arsenic of May 1, 2026. Kalshi held $630.7 cardinal of that full portion Polymarket carried $449.9 million. Predict.fun, Opinion, and Limitless each held good nether $15 cardinal successful unfastened positions.

Sector Revenue

Monthly fees generated crossed the assemblage reached $31.15 cardinal successful April. Polymarket collected $29.22 cardinal of that total, a fig based connected solution terms and mergeable amounts. Limitless followed astatine $1.51 million, with Predict and Opinion generating $260,000 and $154,000 respectively.

The interest figures bespeak that Polymarket, contempt trailing Kalshi successful taker volume, continues to extract a disproportionate stock of assemblage revenue. Its traders look to spot higher-value contracts connected average, a signifier accordant with its planetary idiosyncratic basal and heavy liquidity connected high-profile markets.

April’s numbers widen a maturation inclination that began accelerating successful precocious 2024. Total monthly taker volume sat beneath $500 cardinal arsenic precocious arsenic mid-2024, meaning the assemblage has grown much than 17-fold successful nether 2 years. Kalshi and Polymarket present power an estimated 85% to 95% of full prediction market manufacture volume, with world platforms similar PredictIt and the Iowa Electronic Markets operating astatine a fraction of that scale.