The DOJ and CFTC have sued New York, Connecticut, Arizona, and Illinois for trying to regulate Kalshi and Polymarket. California's absence from that list is the story. And it's why CA traders enjoy uniquely stable access right now.
On March 12, 2026, the CFTC published the most consequential piece of paper for prediction markets in two years. Combined with the February withdrawal of the 2024 sports-contract ban, it locks the federal door open for California traders. Here's what's in it.
California has no legal sportsbooks. But every Sunday, exchanges like Kalshi and ProphetX run hundreds of NFL contracts, all federally legal. Here's the full guide.
The same contract trades on both platforms. Sometimes the prices diverge. Here's how prediction market arbitrage actually works, and why it's harder than it looks.
Every month, Kalshi runs contracts on the BLS Consumer Price Index release. Here's how the cleanest, most data-driven recurring market on the platform actually works.
Over $5.9M wagered across Kalshi, Polymarket, and Betfair on Senate control. Here's which seats actually matter and how to trade them from California.
The 2028 race is the deepest political contract on prediction markets. Kalshi, Polymarket, and PredictIt collectively trade nine figures. Here's how to read it from California.
Kalshi lists no fees for bank or debit card withdrawals. Here's the step-by-step process, how long each method takes, and what can delay your money.
Yes, you can use Polymarket in California. The Polymarket US iPhone app takes US-dollar deposits. Here's the step-by-step for funding your first account, no crypto needed.
Polymarket has no per-trade fees. Kalshi charges roughly $0.07 per round trip. But the all-in cost picture is different. Here's the side-by-side that actually matters.
Yes, your Kalshi and Polymarket profits are taxable, federally and in California. The IRS hasn't said how event contracts are classified yet. Here's what's settled, what isn't and what to keep.
California's water year runs October through September. The first major storms typically arrive in November. Here's how prediction markets cover LA and SF monthly rainfall, and what to actually do with that.