Funding arb · Price arb /

RKLB

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Swap Backtest

Alert: funding

Alert: spread

Funding you earn now, next payment 00:00 UTC+0.0050%/8h= +5.5% APRpaid last 24h +0.020%

Price spread now: Polymarket Perps against Phemex−0.006%46s7-day average −0.048% · you buy dearer than you sell

Net, funding: paid 7d − costs−$88as in the Funding arb table

Net, price: spread back to 7d avg − costs—prices read too far apart to compare

costs, in and out, $10k−$1091.088% of the position

Long on Phemex Short on Polymarket Perps

What this pair did over the last

the charts below follow

Funding, last 7 days+0.211%+$21 on $10k

Price spread, last 3 days (all we have)−0.025%−$3 · spread now −0.006%, 7d avg −0.048%

Together, before fees+0.186%+$19 on $10k · with fees, hour by hour

Both sides work for this trade now. Funding pays +$2 a day on $10k at the current rate, and Polymarket Perps is 0.042% dearer against Phemex than usual: you sell high and buy low: +$4 more if the spread goes back to its 7-day average of −0.048%. The two prices were read 46 seconds apart, so part of this spread may be the market moving, not a spread.

Leg	Exchange	Price	Funding /8h	Each payment	Next in	OI	Vol 24h	Max lev
Long	Phemex RKLBUSDT	71.000	0	get 0.0000% / 8h	17m 35s	$2.0M	$774K	10x
Short	Polymarket Perps RKLB-USD	70.996	0.0050	get 0.0006% / 1h	17m 35s	$270K	$205K	10x

Funding history

latest

Range statsloading…

Price spread between the two exchanges

Polymarket Perps against Phemex. 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 PhemexbpFee Polymarket PerpsbpOrdersPrice spread, now −0.006%Rate

Funding earned: $10.5
Price spread: −0.006% → −0.048%: $4.21
Slippage, 4 orders: −$88.83
Fee Phemex: 6 bp × 2 orders: −$12
Fee Polymarket Perps: 4 bp × 2 orders: −$8
Net: −$94.11
Costs to cover: 1.088%
Break-even: 69.7 days

Slippage from Phemex: live order book, 1 min ago; Polymarket Perps: live order book, 59 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 Phemex live order book, 1 min ago	2.82 bp	43.5 bp −$43	doesn't fit	doesn't fit	doesn't fit
Sell Polymarket Perps live order book, 59 min ago	2.35 bp	6.3 bp −$6	6.5 bp −$65	12.5 bp −$1,252	doesn't fit

RKLB on 23 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
KuCoin RKLBUSDTM	−0.0131%	8h	70.950	−0.070%	$1.2M	$125K	20x	as long as short
Aster RKLBUSDT	0.0000%	8h	70.898	−0.143%	$25K	$53K	20x	as long as short
Extended RKLB-USD	0.0000%	1h	71.006	+0.008%	$12K	$170K	10x	as long as short
Bybit RKLBUSDT	0.0000%	8h	71.020	+0.028%	$2.5M	$1.8M	25x	as long as short
Gate RKLB_USDT	0.0000%	8h	71.020	+0.028%	$3.9M	$15.1M	75x	as long as short
Bitget RKLBUSDT	0.0000%	8h	71.040	+0.056%	$4.5M	$4.9M	20x	as long as short
Variational Omni RKLB	0.0000%	8h	71.015	+0.022%	$241K	$386K	—	as long as short
GRVT RKLB_USDT_Perp	0.0000%	8h	71.001	+0.002%	$6K	$140K	10x	as long as short
SunX RKLB-USDT	0.0000%	8h	70.980	−0.028%	$2K	$6.4M	10x	as long as short
HTX RKLB-USDT	0.0000%	8h	70.980	−0.028%	$10K	$25K	20x	as long as short

Show all 23 venues

Exchange	Funding /8h	Every	Price	Price vs long leg	OI	Vol 24h	Max lev
Phemex RKLBUSDTlong	0.0000%	8h	71.000	long leg	$2.0M	$774K	10x
Binance RKLBUSDT	+0.0004%	8h	71.018	+0.025%	$11.1M	$37.0M	20x	as long as short
QFEX RKLB-USD	+0.0020%	1h	71.020	+0.028%	$1.2M	$1.7M	10x	as long as short
Lighter RKLB	+0.0032%	1h	71.120	+0.169%	$125K	$50K	10x	as long as short
Injective RKLB/USDC PERP	+0.0033%	1h	69.710	−1.817%	$30K	$6K	12x	as long as short
tradeXYZ xyz:RKLB	+0.0050%	1h	71.003	+0.004%	$11.9M	$2.8M	10x	as long as short
Polymarket Perps RKLB-USDshort	+0.0050%	1h	70.996	−0.006%	$270K	$205K	10x
Vest RKLB-USD-PERP	+0.0062%	1h	71.160	+0.225%	—	$303K	25x	as long as short
ApeX Omni RKLBUSDT	+0.0100%	1h	70.890	−0.155%	$44K	$133K	50x	as long as short
OKX RKLB-USDT-SWAP	+0.0102%	8h	71.000	0.000%	$4.1M	$5.0M	20x	as long as short
Aevo RKLB-PERP	+0.0104%	1h	70.986	−0.019%	—	—	10x	as long as short
BloFin RKLB-USDT	+0.0120%	8h	71.030	+0.042%	$235K	$306K	20x	as long as short
edgeX RKLBUSDC	+0.0313%	4h	70.977	−0.033%	$42K	$257K	10x	as long as short