Funding arb · Price arb /

ETH

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Swap Backtest

Alert: funding

Alert: spread

Funding you earn now, next payment 02:00 UTC−0.0032%/8h= −3.5% APRpaid last 24h +0.017%

Price spread now: Polymarket Perps against Kalshi+0.055%7-day average +0.020% · you sell dearer than you buy

Net, funding: paid 7d − costs−$9as in the Funding arb table

Net, price: spread back to 7d avg − costs−$19as in the Price arb table

costs, in and out, $10k−$230.226% of the position

Long on Kalshi Short on Polymarket Perps

What this pair did over the last

the charts below follow

Funding, last 7 days+0.139%+$14 on $10k

Price spread, last 7 days−0.065%−$6 · spread now +0.055%, 7d avg +0.020%

Together, before fees+0.074%+$7 on $10k · with fees, hour by hour

The price spread pays, funding is against you. Polymarket Perps is 0.034% dearer against Kalshi than usual: you sell high and buy low (spread +0.055% now, against its 7-day average of +0.020%): +$3 on $10k if it goes back. Holding the pair costs −$1 a day in funding at the current rate, which eats that in about 3.6 days. Mind the row above: over the last 7 days funding on this pair paid +0.139%, so the current rate has only just turned against you.

Leg	Exchange	Price	Funding /8h	Each payment	Next in	OI	Vol 24h	Max lev
Long	Kalshi KXETHPERP	2,750.6	0.0132	pay 0.0132% / 8h	2h 50m	$7.7M	$671.3M	4.9x
Short	Polymarket Perps ETH-USD	2,752.1	0.0100	get 0.0013% / 1h	50m 31s	$10.4M	$8.0M	50x

Funding history

latest

Range statsloading…

Price spread between the two exchanges

Polymarket Perps against Kalshi. Falling: the short leg gains. Rising: it loses.

latest

Price spreadloading…

Funding on every exchange

click an exchange to add or hide it

latest

How often the price spread is this wide · share of time at each level, last 7D show

Profit calculator

Position, each leg$Hold fordaysFee KalshibpFee Polymarket PerpsbpOrdersPrice spread, now +0.055%Rate

Funding earned: −$6.71
Price spread: +0.055% → +0.020%: $3.42
Slippage, 4 orders: −$4.59
Fee Kalshi: 5 bp × 2 orders: −$10
Fee Polymarket Perps: 4 bp × 2 orders: −$8
Net: −$25.89
Costs to cover: 0.226%
Break-even: never at this rate

Slippage from Kalshi: live order book, 4 min ago; Polymarket Perps: live order book, 4 min ago.

Cost to enter

taker fee + slippage from the mid, one side; closing costs about the same again

Leg	Half-spread	$10k	$100k	$1M	$5M
Buy Kalshi live order book, 4 min ago	0.36 bp	6.5 bp −$6	6.9 bp −$69	12.6 bp −$1,256	20.2 bp −$10.1K
Sell Polymarket Perps live order book, 4 min ago	0.91 bp	4.9 bp −$5	5.8 bp −$58	12.8 bp −$1,277	doesn't fit

ETH on 55 venues

lowest funding first. Swap a leg: a good short leg pays more funding and is priced higher.

Exchange	Funding /8h	Every	Price	Price vs long leg	OI	Vol 24h	Max lev
ApeX Omni ETHUSDT	−0.0449%	1h	2,745.8	−0.174%	$8.7M	$31.5M	100x	as long as short
Perpl ETH	−0.0447%	43m	2,749	−0.057%	$320K	$6.2M	8.3x	as long as short
Hotstuff ETH-PERP	−0.0080%	1h	2,749.7	−0.033%	$5K	$1K	50x	as long as short
RISEx ETH/USDC	−0.0071%	1h	2,753	+0.088%	$5.5M	$11.3M	25x	as long as short
GMX ETH/USD [ETH-USDC]	L −0.0010% / S +0.0043%	1h	2,751	+0.014%	$12.0M	—	200x	as long as short
Phoenix ETH	−0.0006%	1h	2,749.5	−0.040%	$863K	$3.1M	25x	as long as short
dYdX ETH-USD	0.0000%	1h	2,753.5	+0.105%	$10.9M	$41.9M	50x	as long as short
gTrade (Gains Network) ETH/USD	L +0.0006% / S −0.0006%	1h	2,751.1	+0.020%	$22.2M	—	200x	as long as short
01 Exchange ETHUSD	+0.0008%	1h	2,753	+0.087%	$181K	$1.1M	50x	as long as short
BingX ETH-USDT	+0.0028%	8h	2,752.7	+0.076%	—	$1.20B	—	as long as short

Show all 55 venues

Exchange	Funding /8h	Every	Price	Price vs long leg	OI	Vol 24h	Max lev
OKX ETH-USDT-SWAP	+0.0036%	8h	2,752.4	+0.066%	$1.68B	$11.10B	100x	as long as short
HTX ETH-USDT	+0.0043%	8h	2,750.6	−0.002%	$1.07B	$1.23B	200x	as long as short
Aster ETHUSDT	+0.0049%	8h	2,752.8	+0.078%	$256.1M	$854.8M	200x	as long as short
Aevo ETH-PERP	+0.0056%	1h	2,749.3	−0.049%	$4.9M	$163K	20x	as long as short
MEXC ETH_USDT	+0.0057%	8h	2,752.9	+0.085%	$1.58B	$2.53B	500x	as long as short
Binance ETHUSDT	+0.0060%	8h	2,752.6	+0.072%	$6.36B	$16.32B	150x	as long as short
Gate ETH_USDT	+0.0065%	8h	2,753.1	+0.089%	$3.33B	$8.72B	200x	as long as short
KuCoin ETHUSDTM	+0.0081%	8h	2,752.8	+0.080%	$385.5M	$607.1M	100x	as long as short
Bitget ETHUSDT	+0.0083%	8h	2,751.8	+0.043%	$2.07B	$2.86B	150x	as long as short
Coinbase International ETH-PERP-INTX	+0.0088%	1h	2,752.5	+0.068%	$59.6M	$4.40B	50x	as long as short
Aftermath Perps ETHUSD	+0.0096%	1h	2,750.4	−0.009%	$30K	$21K	20x	as long as short
Lighter ETH	+0.0096%	1h	2,753.3	+0.098%	$113.4M	$439.0M	50x	as long as short
Lighter RH ETH	+0.0096%	1h	2,754.9	+0.157%	$25.1M	$105.9M	50x	as long as short
Jupiter Perps ETH-PERP	L +0.0096% / S +0.0056%	1h	2,751.1	+0.017%	—	$35.7M	500x	as long as short
Variational Omni ETH	+0.0097%	8h	2,750.3	−0.011%	$133.4M	$346.5M	—	as long as short
Deribit ETH-PERPETUAL	+0.0099%	1h	2,752.1	+0.055%	$258.7M	$202.4M	50x	as long as short
Paradex ETH-USD-PERP	+0.0099%	8h	2,756.4	+0.210%	$15.9M	$8.2M	50x	as long as short
Katana Perps ETH-USD	+0.0100%	8h	2,752.1	+0.055%	$470K	$2.9M	50x	as long as short
Nado ETH-PERP	+0.0100%	1h	2,753	+0.087%	$14.0M	$113.3M	50x	as long as short
Hyperliquid ETH	+0.0100%	1h	2,753.9	+0.120%	$3.13B	$2.14B	25x	as long as short
Pacifica ETH	+0.0100%	1h	2,753.6	+0.109%	$31.3M	$332.2M	50x	as long as short
Bybit ETHUSDT	+0.0100%	8h	2,752.6	+0.072%	$2.47B	$4.36B	150x	as long as short
Ondo Perps ETH-USD.P	+0.0100%	1h	2,751.7	+0.040%	$2.8M	$16.6M	25x	as long as short
Arcus ETH-USD	+0.0100%	1h	2,753.6	+0.107%	$2.8M	$16.8M	25x	as long as short
Bulk ETH-USD	+0.0100%	1h	2,752.6	+0.074%	$169.2M	$297.0M	25x	as long as short
Backpack ETH_USDC_PERP	+0.0100%	1h	2,750.5	−0.003%	$14.9M	$42.5M	50x	as long as short
edgeX ETHUSDC	+0.0100%	4h	2,743.2	−0.267%	$183.8M	$733.9M	100x	as long as short
GRVT ETH_USDT_Perp	+0.0100%	8h	2,747.1	−0.128%	$159.8M	$82.0M	50x	as long as short
StandX ETH-USD	+0.0100%	1h	2,750.2	−0.015%	$21.3M	$66.1M	40x	as long as short
Vest ETH-PERP	+0.0100%	1h	2,752.3	+0.064%	—	$871K	50x	as long as short
Polymarket Perps ETH-USDshort	+0.0100%	1h	2,752.1	+0.055%	$10.4M	$8.0M	50x
Bullet ETH-USD	+0.0100%	1h	2,750.5	−0.003%	$183K	$1.7M	20x	as long as short
Bluefin ETH-PERP	+0.0100%	1h	2,751.2	+0.023%	$21K	$22K	25x	as long as short
Derive ETH-PERP	+0.0100%	1h	2,752.8	+0.081%	$42.0M	$29.0M	15x	as long as short
SunX ETH-USDT	+0.0100%	8h	2,750.7	+0.005%	$965K	$12.7M	100x	as long as short
SoDEX ETH-USD	+0.0100%	1h	2,750.8	+0.007%	$54.8M	$187.6M	40x	as long as short
Phemex ETHUSDT	+0.0100%	8h	2,751.4	+0.029%	$267.5M	$66.2M	150x	as long as short
Extended ETH-USD	+0.0104%	1h	2,752	+0.050%	$30.6M	$74.3M	50x	as long as short
Kalshi KXETHPERPlong	+0.0132%	8h	2,750.6	long leg	$7.7M	$671.3M	4.9x
Orderly PERP_ETH_USDC	+0.0160%	8h	2,753.9	+0.120%	$32.4M	$11.2M	100x	as long as short
Hibachi ETH/USDT-P	+0.0168%	1h	2,750	−0.020%	$250K	$1.5M	20x	as long as short
BloFin ETH-USDT	+0.0178%	8h	2,751.2	+0.022%	$286.2M	$179.0M	150x	as long as short
Injective ETH/USDC PERP	+0.0209%	1h	2,749.9	−0.025%	$118K	$22.5M	52x	as long as short
Reya ETHRUSDPERP	+0.0217%	1h	2,751.5	+0.032%	$7.3M	$1.1M	25x	as long as short
Kraken Futures PF_ETHUSD	+0.0354%	1h	2,752.3	+0.062%	$93.2M	$316.3M	100x	as long as short