By January 2026, monthly transaction volume rose from $1.2 billion in early 2025 to more than $20 billion. The prediction market sector expanded beyond earlier forecasts. Around ten companies now operate prediction markets. Their platforms include topics such as sports, politics, crypto, and economic data. Most sites follow a similar model. They provide binary yes-or-no contracts, settle trades with USDC, and use a limit order book. Traders visit https://predictionmarketscomparer.com/ to compare prediction market sites and choose where to trade. People examine fee structures, settlement speed, licenses, and market depth to compare differences.

Market Dominance in 2026

By early 2026, the site may offer access to over 1,000 markets. In 2025, Polymarket recorded a total volume of $21.5 billion. Together, Kalshi and Polymarket make up about 97.5% of the market.
DraftKings introduced its product on December 19, 2025. By July 2026, federal regulation applies to 13 options. CME Group and DraftKings manage the product through their partnership.
By late 2025, Polymarket’s monthly volume exceeded $3 billion. Around the same period, DraftKings, FanDuel, and Fanatics launched their own products. DraftKings projects that prediction markets will see $400 million in spend in 2026.

How Do Volume and Liquidity Impact Your Trading?

Kalshi and Polymarket offer trading volume and liquidity. When participation increases, market pricing adjusts more efficiently.

• Kalshi processed $12.35 billion March 2026;
• Polymarket processed $10.15 billion March 2026;
• Polymarket politics category generated $2.97 billion March;
• Polymarket crypto markets produced $2.72 billion March;
• World Cup winner: Polymarket $3 billion versus Kalshi $500 million versus PredictStreet $57,000;
• Polymarket hosts 4,000+ active sports markets;
• Wide bid-ask spreads create hidden costs;
• Low volume distorts probabilities and prices.

Which Fee Structure Costs You Less?

Traders focus more on the bid-ask spread than on the posted fees. When liquidity is low, spreads widen and trading costs increase beyond the commission costs.
Polymarket charges a 0.01% fee on each take order, so a $75 trade costs less than one cent. Kalshi’s fees are higher. Each Yes or No event transaction has a fee of about 1.4%. ACH and wire transfers do not have deposit or withdrawal fees. Deposits made with a Kalshi debit card include a 2% processing fee.
DraftKings charges a fee of about $0.04 for every contract a user buys or sells. FanDuel Predicts takes 2% from each payout. Kalshi offers an annual percentage yield that ranges from 3.75% to 4.05% on cash.

Contract Types Across Categories

Sites such as Polymarket rely on binary contracts, which settle at either $1.00 or $0.00. Kalshi issues contracts linked to weather derivatives and economic indicators, a feature not found on other platforms. In March 2026, sports contracts accounted for 87% of all trading volume on Kalshi.
Polymarket lets users trade on crypto price markets with 15- and 5-minute options. Kalshi offers markets on Fed rate decisions, inflation, GDP, temperature, and hurricanes. Metaculus covers questions in science, geopolitics, AI, and long-term economic trends.
OG includes spreads, totals, props, futures, and four-leg parlays. In 2021, DCMs listed approximately 131 event contracts each year. By 2025, they had certified nearly 1,600 contracts.

Deposit Methods and Account Access

Some sites let users register anonymously, while others require bank information for identity verification; registration processes vary by site.

1. Polymarket International allows users to deposit USDC from any wallet. There is no requirement to complete KYC.
2. Kalshi asks users for their Social Security number to verify identity.
3. Manifold does not require users to complete KYC. Users can create markets immediately.
4. In May 2026, Polymarket removed the waitlist. Now anyone can use the app.
5. OG accepts ACH, PayPal, Venmo, Apple Pay, Google Pay, and debit cards.

What Settlement Technology Powers Each Exchange?

A prediction market lets traders buy contracts linked to specific events, paying $1 if the event happens and $0 if not. Contract prices show the probability traders assign to outcomes. Polymarket, the largest such platform, operates on the Polygon blockchain and processes transactions in USDC.
Polymarket acquired QCEX, a derivatives exchange that holds a CFTC license. In addition, the CFTC issued Polymarket an Amended Order of Designation. Kalshi serves as another example of a prediction market site.
Users can place trades on Polymarket with up to 32 predictions in a single transaction. Ratio links directly to Polymarket’s liquidity. The CFTC expects to establish rules for contract categories by late 2026.

New Competitors Enter the Space

Two years ago, users had access only to Polymarket and Kalshi. The landscape shifted when DraftKings and FanDuel joined the market with larger budgets. In February 2026, DraftKings reached an agreement with Crypto.com. This partnership allowed DraftKings to introduce player-specific NFL and NBA contracts. DraftKings also expanded its offerings to include markets covering politics, entertainment, and crypto.
Flutter plans to invest $200–300 million in FanDuel Predicts in 2026. The company anticipates losses of $200–250 million that same year. OG.com operates a marketplace during events, offering users markets for sports competitions. Crypto.com connects prediction-style products to its crypto ecosystem, allowing users who hold crypto to participate.
ProphetX operates a mobile exchange based on the sportsbook model. Users can place no-fee parlays, and each bet slip displays American odds. On Kalshi, users traded over $1.1 billion in the Men’s World Cup Winner market. Polymarket US partners with MLB, NHL, and UFC exchanges.

Selection Criteria for Traders

Traders choose according to their priorities. Some focus on low fees, while others consider available markets, contract types, or access. Every trading option offers a distinct mix of value, volume, availability, and technology. Traders seek out options that align with their needs.
Monthly volume measures the total money movement through a site. Higher volume leads to better liquidity, which results in tighter spreads. Tighter spreads contribute to more efficient pricing. Traders focus on bid-ask spreads in their markets and often concentrate on areas of expertise like economic policy, politics, or sports.
A trader profits by securing the right entry price, choosing an exit time, minimizing fees, and ensuring sufficient liquidity. The asset type also influences how traders deposit or withdraw funds and handle taxes. Some platforms accept bank transfers or debit cards, while others use crypto or USDC. Traders often create accounts on multiple sites to compare prices and assess liquidity for each event.

Conclusion

In 2026, competition changes the prediction market. Trading volume increases as new exchanges challenge the two established platforms, giving traders more options. About a dozen regulated sites are active, with several crypto-native alternatives alongside them. Each site offers different fee structures, liquidity depths, and contract types. Regulators provide clearer rules for the market. Technology improves settlement speed, and users can access more contracts as a result.