Bitcoin prediction markets

Bitcoin's daily and monthly strike markets are among the most-traded books in prediction markets, period. Here's how they work, where the liquidity actually sits, and how Florida traders use them to hedge instead of gamble.

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How a Bitcoin contract works

Every BTC market reduces to one sentence: will Bitcoin be above this price at this exact moment? If you buy YES at 38¢ and it resolves true, you collect $1 — a 163% return on risk. If it resolves false, you lose the 38¢. There is no leverage, no liquidation price, and no funding rate.

Because prices are quoted in cents, the market is telling you a probability. A 38¢ YES on "BTC above $125,000 on August 31" is the crowd saying there's roughly a 38% chance. That's the number to argue with — not the headline price.

Polymarket vs Kalshi for BTC

Practical split most traders land on: price discovery and short-dated action on Polymarket, size and USD settlement on Kalshi.

The four BTC market types

• Daily strike: "Bitcoin above ___ on [today]" — highest turnover, resolves same day, brutal on late entries.
• Weekly basket: "What price will Bitcoin hit August 3–9?" — laddered strikes; you can build a range view instead of a single yes/no.
• Monthly basket: same shape, month-long horizon; the friendliest format for a macro thesis.
• Event contracts: ETF flows, reserve announcements, halving-adjacent milestones — thinner, but the biggest mispricings live here.

The settlement trap that costs beginners money

"Above $120,000" almost never means "traded above $120,000 at some point." It means the reference price at the resolution timestamp — usually 12:00 PM or 5:00 PM ET on the stated date. Bitcoin can spike through your strike at 3 AM and you still lose. Read the rules tab before you size anything, and note the exact index used, because thin-liquidity wicks on one exchange don't move a composite index.

Hedging a spot bag with defined risk

Say you hold $25,000 in BTC and don't want to sell into a tax event. Buying YES on "Bitcoin below $95,000 on September 30" at 18¢ costs $4,500 for a $25,000 payout if the drawdown lands. Compare that to a perp short: no liquidation, no funding, and the worst case is a known number you decided in advance.

Two rules keep this sane. First, hedge a fraction of the bag, not all of it — insurance you can't afford isn't insurance. Second, choose an expiry past the event you're afraid of, not before it.

Florida notes

Florida residents can trade on both venues, and these are financial event contracts, not state-licensed sports betting. Florida levies no state income tax, so the only tax layer is federal — but the recordkeeping burden sits on you for Polymarket US activity. Keep a simple ledger of entry price, size, and resolution for every position.

Miami's crypto concentration shows up in the order books: U.S. morning hours see the tightest spreads on daily strikes, and liquidity thins noticeably after 8 PM ET.

Trade $25, get $25

Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.

Sources

• › Polymarket — live Bitcoin markets
• › Kalshi — crypto event contracts
• › CFTC — event contracts overview

Related reading

• › Kalshi crypto markets
• › Kalshi vs Polymarket
• › Polymarket fees explained

Frequently asked questions

Where can I trade Bitcoin price odds in Florida?

Kalshi and Polymarket US are both open to eligible Florida users. Kalshi is the CFTC-regulated U.S. exchange and settles in USD from a bank account or debit card; Polymarket runs in USD in its CFTC-regulated U.S. app and lists far more BTC price brackets, including daily and weekly strikes.

How do Bitcoin prediction markets differ from buying BTC?

You are trading a binary contract that pays $1 if a price condition is true at expiry, and $0 if it isn't. Your maximum loss is the price you paid per contract, and you never custody Bitcoin.

What Bitcoin markets get the most volume?

Short-dated strike markets — 'Bitcoin above $X on [date]' and 'What price will Bitcoin hit this week/month' — are consistently among Polymarket's highest-volume books, often seven figures of 24-hour volume during volatile weeks.

How do BTC contracts settle?

Both venues settle against a published reference price at a stated time (typically an index or major-exchange close in ET). Always read the rules tab: 'above $120,000' means strictly above at the resolution timestamp, not at any point during the day.

Can I hedge a Bitcoin position with these markets?

Yes. Buying YES on a downside strike is defined-risk protection: you know the cost upfront, there is no liquidation, and no margin is posted. Size it as insurance, not as a second directional bet.

Are Bitcoin event contracts taxable in Florida?

Florida has no state income tax, but federal rules still apply. Kalshi issues U.S. tax forms for event-contract activity; Polymarket does not, so you are responsible for your own records. Talk to a CPA about your situation.