Everything it costs, and when you pay it.
A one-time start that includes your first month, a flat monthly, and a share of profit charged only on weeks that close in the green.
What $100 a month actually opens
This is not a server rental. One price connects every venue we support, runs both engines against them continuously, and puts your execution on a machine that is yours alone.
Connected venues (CEX and DEX)
20
Binance
DEX
Bybit
DEX
MEXC
DEX
Gate.io
DEX
BingX
DEX
OKX
DEX
Bitget
DEX
KuCoin
DEX
HTX
DEX
Phemex
DEX
BloFin
DEX
Hyperliquid
DEX
Poloniex
DEX
WEEX
DEX
CoinEx
DEX
Aster
DEX
Lighter
DEX
Toobit
DEX
Deribit
DEX
Kraken
DEXIncluded, every month
- Connected venues 20CEX and DEX, 3 of them decentralised. One maintained connection each.
- Orderbook feeds incremental, full depthThe fastest delta channel each venue offers, never a periodic snapshot. We maintain the full order book in memory, not a truncated top-of-book, so size is priced against real depth. A stale or shallow book is how you pay slippage.
- Spread engine ranked and backtestedContinuous cross-exchange scanning surfaces the best opportunities and backtests each one live against your own settings: your exchange fee tiers, order size, thresholds, cooldowns and hysteresis filters.
- Funding engine perp/perp and spot/perpFunding-rate differentials across both perp/perp and spot/perp pairs, ranked by the best current opportunities and backtested live on the same settings and fees you actually trade.
- Your server 1, dedicatedIsolated, running 24/7, with a static IP that is yours alone and rotates once a month.
- Server regions 4Tokyo, Singapore, Frankfurt, London. One free move a month, in one click, to sit closer to the venues you trade.
- Delist protection includedDelisting announcements monitored on the venues you trade, so a position is never left holding one leg into a delist.
- Telegram alerts includedSignal triggers, executions, position changes, daily PnL.
- Dashboard web and mobileYour open positions, live PnL and every running strategy, built for a phone first.
- Per-strategy controls per strategySpread thresholds, depth multipliers, leverage, position sizing, symbol filters. Set per strategy, not once for the whole account.
Nothing else is metered by us: no per-trade fee, no data fee, no fee on your capital. Exchange trading fees are paid to the venue and are already deducted before the performance fee is calculated.
Three optional extras exist and are priced in the dashboard before you confirm them: a VPN add-on, an out-of-cycle IP rotation, and a second region move inside the same month. You are never charged for one without choosing it.
Your keys, your funds
You connect your own exchange accounts with API keys that carry trade permission only. We never request withdrawal permission, so Arbitron can trade your account and cannot move funds out of it. On the three DEX venues you register an API wallet that can trade but cannot withdraw. Keys are AES-256 encrypted at rest, and because your server has its own static IP you can whitelist the key to it yourself.
Start ledger
40% of what you actually made
At the end of each week we compute your realized net PnL: fills and funding, after the exchange's own trading fees. If the week closes positive, the fee is 40% of that profit and you keep 60%. A flat or negative week carries no performance fee, and its loss carries forward: the weeks after it are billed only on what is left once that hole is filled.
fee = 40% × max(0, weekly net PnL + carried loss)
| Week | Net PnL | Carry in | Fee 40% | Cumulative kept |
|---|---|---|---|---|
| 1 | +$600 | — | $240 | +$360 |
| 2 | −$500 | — | — | −$140 |
| 3 | +$300 | −$500 | — | +$160 |
| 4 | +$600 | −$200 | $160 | +$600 |
| Total | +$1,000 | — | $400 | +$600 |
Week 2 closes red: it is invoiced nothing, and it leaves a $500 hole carried into week 3. Week 3 closes green and is still billed nothing, because +$300 does not fill it. Only week 4 clears the mark, and it is billed on the $400 above it, not on its full +$600. The four fees total $400, exactly 40% of the four-week net, because no dollar is charged twice. A fee already invoiced is not refunded by a later loss: a loss only reduces what comes after it.
Hypothetical weeks, chosen to show the formula. Arbitron does not forecast returns.
Why 40%
Because it is the only line we are paid on when things go well, and the only line that goes to zero when they do not. There is no management fee and nothing is charged on your capital, so a flat year costs you the access subscription and nothing else. If you are running size, or bringing a community, the rate is negotiable.
High-water mark
Unrecovered losses carry forward. Until your cumulative result climbs back past its previous peak, the performance fee is $0. You are never charged twice for the same dollar of profit. This is applied across your full billing history, not just from the day you read this.
Refer a trader and you earn 20% of the performance fee we collect from them, paid weekly out of our 40%, never added to theirs.
Run your own number
Enter a realized monthly profit. Everything below is that number put through the rates above. Nothing of ours is baked in but the rates.
The $100 is fixed, so its slice shrinks as the month gets bigger.
Break-even is $166.67 of realized profit a month: you keep 60%, and 60% of $166.67 is exactly the $100 access. Call it $167. In your first month it is $500, because the $300 onboarding lands in that month.
Your input, our arithmetic. Nothing here forecasts a result, and results scale with the capital, venues and conditions you actually trade.
The fee is calculated weekly, not monthly, and unrecovered losses carry forward, so a red week reduces what the weeks after it are billed on. It does not refund a fee already invoiced, so a month that starts green and ends red still bills more than 40% of the monthly total. This monthly view assumes one settlement.
Rates are negotiable in three cases
Everything above is the standard book. These situations are priced individually.
- High volume
- Performance fee negotiated individually for traders running significant volume.
- Communities
- Adjusted referral rates for community leaders bringing traders with them.
- Teams
- Tailored plans for professional trading desks.
Frequently Asked Questions
Why is access $100 a month?
What happens in a losing week?
If my funds never leave my exchange, how do you collect the fee?
What returns should I expect?
Can Arbitron withdraw my funds?
What can go wrong, and what we ask of you
Risk
Arbitrage can reduce directional exposure by pairing opposite positions, but it is not risk-free. Exchange outages, delayed execution, partial fills, liquidity gaps, delistings, funding changes, and other unforeseen events may affect results. Historical performance is not a forecast or a guarantee. You remain responsible for the funds in your exchange accounts.
Platform guidelines
To ensure reliable operation and accurate performance tracking for all users, please observe the following practices while your exchange accounts are connected to Arbitron.
- 01
Exclusive automation access
Your connected exchange accounts must be used exclusively with Arbitron. Running third-party trading bots, scripts, or other automated tools alongside our system can cause conflicting orders, unexpected position changes, and inaccurate performance reporting.
- 02
No manual trading on connected accounts
Please refrain from placing manual trades on accounts linked to Arbitron. Manual activity interferes with the system's position management and may lead to incorrect hedging, skewed PnL calculations, or unintended market exposure.
- 03
Maintain position integrity across exchanges
Arbitrage positions are always paired across two exchanges. Intentionally closing one side while leaving the other open disrupts the hedge and exposes both you and the system to unmanaged market risk. Always let Arbitron handle position lifecycle.