Funding arb · Price arb /

CASHCAT

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Swap Backtest

Alert: funding

Alert: spread

Funding you earn now, next payment 07:00 UTC−0.0316%/8h= −34.6% APRpaid last 24h −0.083%

Price spread now: MEXC against Polymarket Perps+0.134%7-day average +0.020% · you sell dearer than you buy

Net, funding: paid 7d − costs−$114as in the Funding arb table

Net, price: spread back to 7d avg − costs−$55as in the Price arb table

costs, in and out, $10k−$670.666% of the position

Long on Polymarket Perps Short on MEXC

What this pair did over the last

the charts below follow

Funding, last 7 days−0.479%−$48 on $10k

Price spread, last 7 days−0.009%−$1 · spread now +0.134%, 7d avg +0.020%

Together, before fees−0.487%−$49 on $10k · with fees, hour by hour

The price spread pays, funding is against you. MEXC is 0.114% dearer against Polymarket Perps than usual: you sell high and buy low (spread +0.134% now, against its 7-day average of +0.020%): +$11 on $10k if it goes back. Holding the pair costs −$9 a day in funding at the current rate, which eats that in about 29 hours.

Leg	Exchange	Price	Funding /8h	Each payment	Next in	OI	Vol 24h	Max lev
Long	Polymarket Perps CASHCAT-USD	0.1638	0.0756	pay 0.0095% / 1h	39m 11s	$64K	$1.3M	3x
Short	MEXC CASHCAT_USDT	0.1640	0.0440	get 0.0220% / 4h	1h 39m	$8.2M	$527K	20x

Funding history

latest

Range statsloading…

Price spread between the two exchanges

MEXC against Polymarket 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 Polymarket PerpsbpFee MEXCbpOrdersPrice spread, now +0.134%Rate

Funding earned: −$66.36
Price spread: +0.134% → +0.020%: $11.42
Slippage, 4 orders: −$38.62
Fee Polymarket Perps: 4 bp × 2 orders: −$8
Fee MEXC: 10 bp × 2 orders: −$20
Net: −$121.56
Costs to cover: 0.666%
Break-even: never at this rate

Slippage from Polymarket Perps: live order book, 4 min ago; MEXC: live order book, 3 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 Polymarket Perps live order book, 4 min ago	3.36 bp	10.2 bp −$10	18.6 bp −$186	doesn't fit	doesn't fit
Sell MEXC live order book, 3 min ago	3.36 bp	19.3 bp −$19	193.1 bp −$1,931	959.6 bp −$96.0K	doesn't fit

CASHCAT on 22 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
Lighter CASHCAT	−0.0520%	1h	0.1637	−0.018%	$1.1M	$1.8M	3x	as long as short
Lighter RH CASHCAT	+0.0096%	1h	0.1637	−0.018%	$339K	$955K	3x	as long as short
Hyperliquid CASHCAT	+0.0100%	1h	0.1640	+0.147%	$44.8M	$20.3M	3x	as long as short
Gate CASHCAT_USDT	+0.0100%	4h	0.1639	+0.073%	$1.5M	$2.0M	20x	as long as short
KuCoin CASHCATUSDTM	+0.0100%	4h	0.1637	−0.049%	$575K	$2.4M	10x	as long as short
Variational Omni CASHCAT	+0.0100%	4h	0.1639	+0.065%	$1.1M	$1.8M	—	as long as short
SunX CASHCAT-USDT	+0.0100%	1h	0.1637	−0.005%	—	$2.4M	10x	as long as short
SoDEX CASHCAT-USD	+0.0100%	1h	0.1637	−0.018%	$491	$1K	3x	as long as short
HTX CASHCAT-USDT	+0.0100%	1h	0.1639	+0.112%	$19K	$293K	10x	as long as short
ApeX Omni CASHCATUSDT	+0.0258%	1h	0.1637	−0.043%	$74K	$59K	50x	as long as short

Show all 22 venues

Exchange	Funding /8h	Every	Price	Price vs long leg	OI	Vol 24h	Max lev
Nado CASHCAT-PERP	+0.0332%	1h	0.1634	−0.232%	$206K	$194K	5x	as long as short
Bybit CASHCATUSDT	+0.0421%	4h	0.1641	+0.189%	$12.3M	$19.2M	10x	as long as short
MEXC CASHCAT_USDTshort	+0.0440%	4h	0.1640	+0.134%	$8.2M	$527K	20x
Extended CASHCAT-USD	+0.0480%	1h	0.1638	+0.022%	$106K	$756K	5x	as long as short
edgeX CASHCATUSDC	+0.0739%	4h	0.1641	+0.238%	$50K	$168K	5x	as long as short
Polymarket Perps CASHCAT-USDlong	+0.0756%	1h	0.1638	long leg	$64K	$1.3M	3x
Arcus CASHCAT-USD	+0.0990%	1h	0.1641	+0.232%	$102K	$280K	5x	as long as short
BingX CASHCAT-USDT	+0.1036%	4h	0.1640	+0.153%	—	$1.1M	—	as long as short
OKX CASHCAT-USDT-SWAP	+0.1057%	4h	0.1640	+0.153%	$1.5M	$12.2M	20x	as long as short
BloFin CASHCAT-USDT	+0.1380%	4h	0.1640	+0.153%	$53K	$563K	20x	as long as short
Aster CASHCATUSDT	+0.1823%	1h	0.1638	+0.031%	$549K	$1.1M	10x	as long as short
Injective CASHCAT/USDC PERP	+0.5000%	1h	0.1659	+1.313%	$8K	$19K	5.5x	as long as short