The Identical Commerce, Totally different Money Flows
These are **hypothetical examples, not stay quotes**: 100 contracts purchased in a single fill at 40 cents, then both offered in a single fill at 60 cents or held to settlement. They assume no rebates, promotions or middleman expenses and start with cleared account money. Funding, withdrawals and taxes are separate.
For a concrete contract kind, take into account a full-game football-winner contract on the identical crew and sport. Polymarket US’s sports activities guidelines and Kalshi’s soccer phrases each embrace time beyond regulation by default. The examples cowl an odd accomplished sport with a winner: the profitable contract pays $1 and the dropping contract pays $0.
If the taker purchaser holds a winner as an alternative of promoting early, the $100 settlement fee leaves a revenue of $58.33 on Polymarket US or $58.32 on Kalshi. A dropping settlement pays nothing: the loss is the total $41.67 or $41.68 entry value. The early-sale and settlement situations are alternate options, not funds so as to add collectively.
The usual taker formulation are related: **0.0695 × C × p × (1 − p)** on Polymarket US and **0.07 × C × p × (1 − p)** on Kalshi for a multiplier-one market. Right here, C is contract amount and p is the greenback worth. Polymarket US rounds to the closest cent utilizing half-to-even rounding. Its table-tennis and combo schedules differ; Kalshi additionally lists market-specific exceptions.
Resting Orders Change the Invoice
A taker removes an out there order; a maker leaves an order resting for another person to commerce towards. Merely selecting a restrict order doesn’t assure maker therapy if it instantly matches.
Polymarket US’s Tier 1 maker receives no rebate and pays no maker buying and selling charge. Kalshi’s schedule applies a maker coefficient of 0.0175 to its professional-football-game collection. For a similar hypothetical 100-contract buy at 40 cents, which means $40 paid on Polymarket US versus $40.42 on Kalshi.
If each entry and exit qualify as maker fills, promoting at 60 cents returns $60 on Polymarket US and $59.58 on Kalshi, producing income of $20 and $19.16. If held as an alternative, regular profitable settlement produces income of $60 and $59.58; a dropping settlement loses $40 and $40.42. These maker costs are assumptions, not promised fills. Kalshi doesn’t cost maker charges in each market, whereas greater Polymarket US tiers can obtain rebates.
Value, Guidelines and Transferring Cash
The unfold is the hole between the very best shopping for and promoting costs. A market purchase takes the ask; a market sale takes the bid. Obtainable measurement issues too: if the very best worth can’t fill your complete order, the rest can execute at worse ranges. That may outweigh the one-cent taker-fee distinction on this instance.
Matching the crew identify will not be sufficient to ascertain equal contracts. Kalshi’s soccer phrases usually require a postponed sport to start out inside 48 hours of its unique date; Polymarket US’s steerage permits rescheduling earlier than contract expiration, sometimes two weeks from the unique occasion date. Evaluate the actual market’s interval, end result supply, tie and cancellation phrases earlier than evaluating prices.
Transferring cash is a separate invoice. Kalshi’s schedule lists no ACH deposit or withdrawal charge, a most 2% card-deposit charge, and doable third-party processor expenses for crypto transfers. Polymarket US describes money withdrawals as free; funding-method expenses needs to be checked individually earlier than depositing quite than assumed to be included within the buying and selling examples.
Money proceeds are usually not essentially instantly withdrawable. Polymarket US says deposits should absolutely clear earlier than withdrawals, sometimes taking three to 4 enterprise days, together with proceeds from trades tied to these deposits.
