Settings8H · net · $10k
LanguageThe language of the site
FundingPeriod funding rates are shown in
UnitsPercent or basis points
CostsCount taker fees and slippage in Net
SizePosition per leg used for Net and slippage
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Funding arb · Price arb / Crypto

GRAM

All GRAM markets →
Backtest 30d
LegExchangePriceFund. /8hEach paymentNext inOIVol 24hLev
LONG
HTXGRAM-USDT
1.5062+0.0100pay 0.0050% / 4h1h 07m$231K$514K30xLong HTX
SHORT
PopdexGRAMUSDT
1.5010+0.0096get 0.0012% / 1h7m 31s$103K$388K50xShort Popdex
Price gap−0.345%
Funding gap−0.0004% /8h

Funding is ≈ 0 and the gap is 0.257% under its 7d average: the price leg works against you, −$26 on $10k if it goes back.

If you open now and hold

on $10k a leg · figures of the last 7D, not a forecast
Funding−$1−0.0004% /8h now · paid −0.008% over the last 6 days (all we have)
Price−$26spread −0.345% now, avg −0.089% → −0.257% if it goes back
Costs−$730.732% of $10k · taker + slippage, in and out
Result−$100−1.00%no pointsWhat the last 7D really paid, hour by hour → backtest

Funding history

you earnyou payavg
RANGE STATS · 7D
Average /8h—
Highest—
Lowest—
Paid you—

Short leg rate minus long leg rate, per 8h. Above zero: the pair pays you.

Price spread between the two exchanges

Popdex price against HTXnow
RANGE STATS · 7D
Now−0.345%
Average—
Range—
Wider than now—

Where the spread has been, last 7D

share of time at each level

Funding on every exchange

/8h

GRAM on 22 exchanges

lowest funding first

Before you open

0 ok · 5 to watch
  • Watch: Thin at this size28.3 / 11.7 bp
    At $10k entering HTX costs 28.3 bp, fee and slippage, 2.4× Popdex’s.
  • Note: Margin at max leverage$333 + $200
    HTX 30x, Popdex 50x. Keep about 2× this so a sharp move doesn’t liquidate one leg.
  • Watch: Payment intervals differ4h / 1h
    Payments land at different times. Close right after the slower leg pays.
    Next 24h at the current rates, on $10k a leg: −$0.12Long HTX: 6 payments, −$3.00; short Popdex: 24 payments, +$2.88.
  • Watch: Gap narrower than usual−0.345% vs −0.089%
    Less room for the price leg to pay you. If it goes back to average, the short loses.
  • Watch: Short leg is thinner$103K vs $231K OI
    Popdex sets your exit cost. Check its book before closing.
  • Note: No points program—
    Neither exchange runs points right now.
  • Watch: KYCHTX Limited · Popdex No
    No ID for accounts opened since 2026-03-30: futures up to 5x and no API trading; more leverage and the API need level-2 KYC.

Profit calculator

both legs, in and out
Position, each leg
Hold for
Orders
Price spread
Funding rate
Funding earned−0.0005%/8h × 21 periods−$0.97
Price spread−0.345% → −0.089% (7d avg)−$25.66
Slippage, 4 orderslive order books−$54.83
Fee HTX bp × 2 orders−$12.00
Fee Popdex bp × 2 orders−$6.40
Net · 7 days · $10k−$99.86
Costs to cover0.732%Break-evennever at this rate
Slippage: HTX: live order book, 51 min ago; Popdex: live order book, 51 min ago

Cost to enter

taker + slippage from mid, one side
BUY · LONGHTX16.2428.3 bp−$28doesn’t fitdoesn’t fitdoesn’t fit
SELL · SHORTPopdex3.3211.7 bp−$1260.2 bp−$602doesn’t fitdoesn’t fit

Closing costs about the same again.

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