Funding arb · Price arb /

SP500

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Swap Backtest

Alert: funding

Alert: spread

Funding you earn now, next payment 01:00 UTC−0.0268%/8h= −29.4% APRpaid last 24h −0.078%

Price spread now: Bitget against Aftermath Perps+0.086%7-day average — · you sell dearer than you buy

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

Long on Aftermath Perps Short on Bitget

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

The price spread pays, funding is against you. Bitget is 0.086% dearer against Aftermath Perps than usual: you sell high and buy low (spread +0.086% now, against zero (this spread has no 7-day history yet)): +$9 on $10k if it goes back. Holding the pair costs −$8 a day in funding at the current rate, which eats that in about 26 hours.

Leg	Exchange	Price	Funding /8h	Each payment	Next in	OI	Vol 24h	Max lev
Long	Aftermath Perps US500USD	7,765.6	0.0268	pay 0.0034% / 1h	12m 20s	$559	$21K	10x
Short	Bitget SP500USDT	7,772.3	0	get 0.0000% / 8h	7h 12m	$7.2M	$773K	50x

Funding history

latest

Range statsloading…

Price spread between the two exchanges

Bitget 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 BitgetbpOrdersPrice spread, now +0.086%Rate

Funding earned: −$56.34
Price spread: +0.086% → 0.000%: $8.63
Slippage, 4 orders: no order book: not counted
Fee Aftermath Perps: 4.5 bp × 2 orders: −$9
Fee Bitget: 6 bp × 2 orders: −$12
Net: −$68.71
Costs to cover: 0.210%
Break-even: never at this rate

Slippage unknown: Aftermath Perps: no order-book sample; Bitget: live order book, 1 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 Bitget live order book, 1 min ago	1.99 bp	22.1 bp −$22	35.5 bp −$355	41.2 bp −$4,120	doesn't fit

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.

SP500 on 18 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
Injective US500/USDC PERP	−0.0220%	1h	7,664.8	−1.298%	$7K	$107	52x	as long as short
QFEX US500-USD	−0.0045%	1h	7,768.9	+0.042%	$11.9M	$3.2M	30x	as long as short
OKX US500-USDT-SWAP	0.0000%	8h	7,766.5	+0.012%	$152K	$246K	20x	as long as short
Bitget SP500USDTshort	0.0000%	8h	7,772.3	+0.086%	$7.2M	$773K	50x
Variational Omni US500	0.0000%	8h	7,742.9	−0.292%	$17.2M	$8.9M	—	as long as short
Bullet US500-USD	0.0000%	1h	7,767.8	+0.028%	$13K	$108K	10x	as long as short
Lighter US500	+0.0032%	1h	7,766	+0.005%	$2.2M	$29.0M	50x	as long as short
Extended SPX500m-USD	+0.0032%	1h	7,768.2	+0.033%	$3.2M	$14.7M	25x	as long as short
Markets by Kinetiq mkts:US500	+0.0046%	1h	7,738.3	−0.352%	$1.6M	$7.1M	25x	as long as short
Vest SPX-USD-PERP	+0.0046%	1h	7,832.8	+0.865%	—	$3.8M	50x	as long as short

Show all 18 venues

Exchange	Funding /8h	Every	Price	Price vs long leg	OI	Vol 24h	Max lev
Popdex US500USDT	+0.0048%	1h	7,768.7	+0.040%	$545K	$439K	20x	as long as short
Paradex US500-USD-PERP	+0.0050%	8h	7,765.3	−0.004%	$43K	—	5x	as long as short
tradeXYZ xyz:SP500	+0.0050%	1h	7,767.8	+0.028%	$433.9M	$241.1M	50x	as long as short
Polymarket Perps SP500-USD	+0.0050%	1h	7,765.6	0.000%	$9.0M	$2.3M	50x	as long as short
SoDEX US500-USD	+0.0050%	1h	7,767.6	+0.026%	$1.1M	$85K	20x	as long as short
Ondo Perps US500-USD.P	+0.0050%	1h	7,768.1	+0.032%	$9.5M	$7.1M	25x	as long as short
Pacifica SP500	+0.0100%	1h	7,768.3	+0.035%	$261K	$178K	20x	as long as short
Aftermath Perps US500USDlong	+0.0268%	1h	7,765.6	long leg	$559	$21K	10x