Funding arb · Price arb /

ETH

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Swap Backtest

Alert: funding

Alert: spread

Funding you earn now, next payment 05:00 UTC−0.0100%/8h= −11.0% APRpaid last 24h −0.022%

Price spread now: Kalshi against Aftermath Perps−0.052%7-day average — · you buy dearer than you sell

to open and closeno order booka leg has no order-book sample

Long on Aftermath Perps Short on Kalshi

What this pair did over the last

the charts below follow

Funding, last 3 days (all we have)—no history yet

Price spread, last 7 days—no price history on both exchanges yet

Together, before fees—needs both histories

Both sides work against this trade now: funding costs −$3 a day on $10k at the current rate, and Kalshi is 0.052% cheaper against Aftermath Perps than usual: you would sell low and buy high (−$5 if the spread goes back to zero (this spread has no 7-day history yet)). Swap the legs.

Leg	Exchange	Price	Funding /8h	Each payment	Next in	OI	Vol 24h	Max lev
Long	Aftermath Perps ETHUSD	2,730	0.0100	pay 0.0013% / 1h	12m 14s	$30K	$20K	20x
Short	Kalshi KXETHPERP	2,728.6	0	get 0.0000% / 8h	7h 12m	$6.2M	$686.2M	4.9x

Funding history

latest

Range statsloading…

Price spread between the two exchanges

Kalshi against Aftermath Perps. 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 Aftermath PerpsbpFee KalshibpOrdersPrice spread, now −0.052%Rate

Funding earned: −$21.02
Price spread: −0.052% → 0.000%: −$5.19
Slippage, 4 orders: no order book: not counted
Fee Aftermath Perps: 4.5 bp × 2 orders: −$9
Fee Kalshi: 5 bp × 2 orders: −$10
Net: −$45.2
Costs to cover: 0.190%
Break-even: never at this rate

Slippage unknown: Aftermath Perps: no order-book sample; Kalshi: live order book, 2 min ago. Net counts fees only.

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 Aftermath Perps no order-book sample	—	—	—	—	—
Sell Kalshi live order book, 2 min ago	0.37 bp	5.9 bp −$6	7.7 bp −$77	11.8 bp −$1,178	19.4 bp −$9,681

Aftermath Perps: no order-book sample. Either the market is below $100k of open interest and volume (not sampled), or the venue executes at an oracle price and its slippage is not modeled here: see the venue's docs.

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
Perpl ETH	−0.0335%	43m	2,728.4	−0.060%	$297K	$5.6M	8.3x	as long as short
Hotstuff ETH-PERP	−0.0080%	1h	2,728.6	−0.052%	$5K	$1K	50x	as long as short
HTX ETH-USDT	−0.0017%	8h	2,727.1	−0.105%	$1.05B	$1.20B	200x	as long as short
GMX ETH/USD [ETH-USDC]	L −0.0010% / S +0.0043%	1h	2,727.8	−0.082%	$11.9M	—	200x	as long as short
Phoenix ETH	−0.0006%	1h	2,729	−0.037%	$816K	$2.9M	25x	as long as short
Kalshi KXETHPERPshort	0.0000%	8h	2,728.6	−0.052%	$6.2M	$686.2M	4.9x
dYdX ETH-USD	+0.0006%	1h	2,729.5	−0.018%	$10.7M	$42.1M	50x	as long as short
gTrade (Gains Network) ETH/USD	L +0.0007% / S −0.0006%	1h	2,728	−0.075%	$28.0M	—	200x	as long as short
BingX ETH-USDC	+0.0027%	8h	2,727.3	−0.101%	—	$18.4M	—	as long as short
Bullet ETH-USD	+0.0032%	1h	2,727.1	−0.107%	$177K	$1.7M	20x	as long as short

Show all 55 venues

Exchange	Funding /8h	Every	Price	Price vs long leg	OI	Vol 24h	Max lev
Bybit ETHUSDT	+0.0036%	8h	2,727.9	−0.079%	$2.36B	$4.38B	150x	as long as short
01 Exchange ETHUSD	+0.0048%	1h	2,728.3	−0.063%	$187K	$814K	50x	as long as short
SunX ETH-USDT	+0.0061%	8h	2,727.6	−0.088%	$957K	$11.2M	100x	as long as short
KuCoin ETHUSDTM	+0.0066%	8h	2,727.8	−0.080%	$377.8M	$575.1M	100x	as long as short
Deribit ETH-PERPETUAL	+0.0073%	1h	2,728.9	−0.042%	$258.6M	$202.5M	50x	as long as short
OKX ETH-USDT-SWAP	+0.0078%	8h	2,728.3	−0.065%	$1.67B	$10.74B	100x	as long as short
Aster ETHUSDT	+0.0080%	8h	2,727.7	−0.084%	$250.7M	$840.3M	200x	as long as short
Aevo ETH-PERP	+0.0080%	1h	2,725.3	−0.173%	$4.9M	$155K	20x	as long as short
MEXC ETH_USDT	+0.0086%	8h	2,727.8	−0.082%	$1.56B	$2.58B	500x	as long as short
Binance ETHUSDT	+0.0087%	8h	2,727.8	−0.082%	$6.32B	$15.94B	150x	as long as short
Phemex ETHUSDT	+0.0087%	8h	2,727.7	−0.087%	$264.3M	$64.8M	150x	as long as short
SoDEX ETH-USD	+0.0088%	1h	2,727.7	−0.085%	$54.3M	$187.8M	40x	as long as short
ApeX Omni ETHUSDT	+0.0089%	1h	2,731	+0.036%	$8.6M	$31.2M	100x	as long as short
Lighter ETH	+0.0096%	1h	2,728.1	−0.071%	$112.3M	$435.3M	50x	as long as short
Lighter RH ETH	+0.0096%	1h	2,729.4	−0.021%	$23.4M	$104.7M	50x	as long as short
Jupiter Perps ETH-PERP	L +0.0096% / S +0.0048%	1h	2,728.4	−0.058%	—	$31.0M	500x	as long as short
Injective ETH/USDC PERP	+0.0096%	1h	2,730.8	+0.029%	$117K	$22.5M	52x	as long as short
Katana Perps ETH-USD	+0.0100%	8h	2,727.9	−0.077%	$498K	$3.4M	50x	as long as short
Paradex ETH-USD-PERP	+0.0100%	8h	2,729.6	−0.016%	$15.5M	$8.0M	50x	as long as short
Nado ETH-PERP	+0.0100%	1h	2,727.9	−0.078%	$13.9M	$104.7M	50x	as long as short
Hyperliquid ETH	+0.0100%	1h	2,729.9	−0.004%	$3.09B	$2.05B	25x	as long as short
Pacifica ETH	+0.0100%	1h	2,729.3	−0.026%	$31.9M	$334.6M	50x	as long as short
Ondo Perps ETH-USD.P	+0.0100%	1h	2,729	−0.037%	$2.7M	$16.7M	25x	as long as short
Arcus ETH-USD	+0.0100%	1h	2,728.8	−0.044%	$1.5M	$16.0M	25x	as long as short
Bulk ETH-USD	+0.0100%	1h	2,728.2	−0.066%	$167.8M	$301.9M	25x	as long as short
Gate ETH_USDT	+0.0100%	8h	2,727.8	−0.082%	$3.33B	$8.95B	200x	as long as short
Bitget ETHUSDT	+0.0100%	8h	2,727.7	−0.086%	$2.07B	$2.73B	150x	as long as short
Backpack ETH_USDC_PERP	+0.0100%	1h	2,728.2	−0.068%	$14.9M	$41.6M	50x	as long as short
Variational Omni ETH	+0.0100%	8h	2,728.8	−0.044%	$134.7M	$323.0M	—	as long as short
edgeX ETHUSDC	+0.0100%	4h	2,729.5	−0.020%	$183.6M	$673.1M	100x	as long as short
GRVT ETH_USDT_Perp	+0.0100%	8h	2,730	+0.001%	$158.8M	$86.9M	50x	as long as short
StandX ETH-USD	+0.0100%	1h	2,730	−0.001%	$21.0M	$70.5M	40x	as long as short
Vest ETH-PERP	+0.0100%	1h	2,728.8	−0.044%	—	$845K	50x	as long as short
Polymarket Perps ETH-USD	+0.0100%	1h	2,729	−0.037%	$11.2M	$9.4M	50x	as long as short
Bluefin ETH-PERP	+0.0100%	1h	2,728.2	−0.067%	$21K	$20K	25x	as long as short
Derive ETH-PERP	+0.0100%	1h	2,729.5	−0.017%	$40.9M	$29.9M	15x	as long as short
Aftermath Perps ETHUSDlong	+0.0100%	1h	2,730	long leg	$30K	$20K	20x
Extended ETH-USD	+0.0104%	1h	2,726.9	−0.115%	$30.5M	$73.5M	50x	as long as short
RISEx ETH/USDC	+0.0107%	1h	2,728.5	−0.056%	$5.6M	$11.7M	25x	as long as short
Coinbase International ETH-PERP-INTX	+0.0120%	1h	2,728.9	−0.043%	$50.5M	$4.28B	50x	as long as short
Kraken Futures PF_ETHUSD	+0.0153%	1h	2,728.5	−0.057%	$83.5M	$315.9M	100x	as long as short
Orderly PERP_ETH_USDC	+0.0191%	8h	2,730	−0.001%	$32.1M	$11.6M	100x	as long as short
Reya ETHRUSDPERP	+0.0208%	1h	2,726.9	−0.114%	$7.3M	$1.2M	25x	as long as short
Hibachi ETH/USDT-P	+0.0232%	1h	2,729.8	−0.006%	$247K	$1.4M	20x	as long as short
BloFin ETH-USDT	+0.0347%	8h	2,728.2	−0.066%	$282.3M	$174.6M	150x	as long as short