Trading Fees: Paid to Exchanges (Not Us)

Every time the vault executes an arbitrage trade, it pays fees to the exchanges involved. These fees go directly to Aster, Backpack, or zkLighter—not to Arbitrix. We have zero control over these fees, but we can optimize execution to minimize them.

Exchange Fee Rates:

• Aster: 0.035% taker fee per trade

  • Spot trading: 0.035%

  • Futures trading: 0.035%

  • Best rate for high-frequency strategies

• Backpack: Variable based on tier

  • Spot trading: 0.10% taker (Tier 1) → 0.08% (Tier 3 at $10M+ volume)

  • Futures trading: 0.05% taker (Tier 1) → 0.03% (Tier 3)

  • We'll quickly reach Tier 3 with vault volume

• Lighter: 0.001% maker/taker

  • Lowest fees in the ecosystem

  • Only offers perpetual futures (no spot)

  • Ideal for funding rate arbitrage

How This Impacts You:

Every arbitrage trade requires a buy and a sell. That means we pay fees on both sides. Let's calculate the worst-case and best-case scenarios:

Worst case (Aster-Backpack spot trade at Tier 1):

• Buy on Aster: 0.035%

• Sell on Backpack: 0.10%

• Total round-trip cost: 0.135%

Best case (Aster-zkLighter futures trade):

• Execute on Aster: 0.035%

• Execute on zkLighter: 0.001%

• Total round-trip cost: 0.036%

Realistic average (blended across all strategies):

• 0.08% total trading fees per round-trip

Real dollar example: Vault executes a $10,000 arbitrage trade with 0.15% gross profit. That's $15 profit before fees. We pay $8 in trading fees (0.08% of $10,000). Net profit: $7. You receive 80% of that $7 after our performance fee (explained below) = $5.60 in your pocket.

Now multiply that by 15 trades per day × 30 days = 450 trades per month. Even after all fees, profits compound dramatically.

Why we're telling you this: Other vaults hide trading fees in their reported APY numbers, showing you inflated returns that don't account for execution costs. We're showing you the net numbers after every single cost.