Moon vs Polymarket: two different bets on being right

Both let you back an opinion with crypto; the resemblance ends there. Moon pays you for being right about where a price goes, scaled by up to 1000× leverage. Polymarket pays you $1 a share for being right about whether an event happens — with no leverage anywhere on the platform. Different instrument, different risk math, different custody. Table first.

Outcome shares vs leveraged price wagers

A Polymarket share is a yes/no claim on an event, priced between $0 and $1 — the price is the crowd's probability. Right at resolution, each share pays $1; wrong, it pays nothing. A Moon wager is continuous exposure to a price path, and leverage multiplies every tick: at 1000×, a 0.1% move against you ends the bet. Polymarket has zero leverage by design — nothing can bust early, but nothing compounds either. How the wager mechanics work end to end is on how Moon works.

Both cap your loss. Differently.

Rare honesty in this genre: neither platform can cost you more than you put in. On Moon the cap is structural — a bust settles as a lost wager, no margin calls. On Polymarket the cap is the purchase itself: shares can only fall to zero, and there's no bust threshold at all — a position at 3¢ can still resolve to $1. The trade-off is time: Moon settles the moment you close; Polymarket capital rides until resolution, or until you sell into the order book.

Price feeds vs event calendars

Moon covers prices: crypto, stocks, indices, commodities and forex, wagerable 24/7 including weekends. Polymarket covers events: elections, Fed decisions, sports, culture — plus discrete crypto-price questions ("BTC above X by date"), which are strike-and-date bets, not continuous exposure. Both trade around the clock; on Polymarket the market's payoff still waits for the real-world outcome. If your thesis is "SPX drifts up over the weekend," only Moon carries that instrument. If it's "this candidate wins," only Polymarket does.

Platform account vs on-chain wallet

Moon is a platform account: KYC before your first crypto deposit, balances held with Moon. Polymarket's main site is on-chain — USDC in a Polygon wallet you control, trades settled on-chain; its US exchange runs KYC'd accounts under CFTC rules (as of mid-2026). Fees invert too: Moon charges 1% of the wager, an 8-hour rolling fee, and min. 10% of profit; Polymarket, fee-free for years, now charges takers a small category-based fee (geopolitics still free, makers rebated) as of July 2026. Polymarket deposits and withdrawals are free minus network costs (per their help docs, July 2026); Moon's deposit/withdrawal fee schedule is unpublished — verify in-app.

The US question has different answers

Polymarket bought QCEX, a CFTC-licensed exchange and clearinghouse, in 2025 and relaunched in the US — live in 40+ states as of mid-2026, with a filing pending to open its main exchange to US users. Moon operates under an Anjouan (Comoros) gaming license through Moon International Limited, and hasn't published US availability. If regulated US access decides it for you, that's Polymarket's column — stated plainly.

Pick the machine that matches the thesis

Polymarket if you trade discrete real-world outcomes, want defined risk with no leverage and no bust mechanics, prefer self-custody, or need a regulated US venue. Moon if you want continuous price exposure with leverage up to 1000×, stocks and forex at 3am Sunday, and one-click wagers with the loss hard-capped. They're complements more than competitors — also see how Moon stacks against the futures exchanges in Moon vs Bybit vs Binance.