Fees & Calculations

Understanding the fee structure is essential for calculating your true trading costs and expected returns.

Fee Overview

Fee Type	Rate	When Applied
Opening Fee	0.1%	When position opens
Closing Fee	0.1%	When position closes
Hourly Interest	Variable	Continuously while open
Network Gas	Variable	Every transaction

Opening Fee

A fee charged when your trade is matched and your position opens.

Opening Fee = Position Size × 0.1%

Example:

Collateral: 100 USDC
Leverage: 10x
Position Size: 1,000 USDC
Opening Fee: 1,000 × 0.0008 = 0.80 USDC

The opening fee is deducted from your collateral immediately upon opening.

Closing Fee

A fee charged when your position closes, regardless of how it closes (manual, stop-loss, take-profit, or liquidation).

Closing Fee = Position Size × 0.1%

Example:

Position Size: 1,000 USDC
Closing Fee: 1,000 × 0.0008 = 0.80 USDC

The closing fee is deducted from your settlement amount.

Interest (Borrowing Fee)

When you open a leveraged position, you’re effectively borrowing funds from matchers. Interest accrues continuously while your position is open.

Interest Calculation

Hourly Interest = Position Size × Hourly Rate
Daily Interest = Hourly Interest × 24

Current Rates

Pair	Base Rate (Hourly)	APR Equivalent
BTC/USDC	0.001%	~8.76%
ETH/USDC	0.001%	~8.76%
SOL/USDC	0.0015%	~13.14%
ARB/USDC	0.002%	~17.52%
OP/USDC	0.002%	~17.52%

Interest rates are variable and may change based on utilization and market conditions.

Interest Example

Position Size: 1,000 USDC
Hourly Rate: 0.001%
Duration: 48 hours

Hourly Interest: 1,000 × 0.00001 = 0.01 USDC
Total Interest: 0.01 × 48 = 0.48 USDC

Network Gas Fees

Every transaction on Base requires a small ETH gas fee:

Action	Typical Gas Cost
Open Trade	$0.05 -$ 0.15
Close Trade	$0.05 -$ 0.15
Cancel Pending	$0.02 -$ 0.05
Modify SL/TP	$0.02 -$ 0.05
Deposit	$0.02 -$ 0.05
Withdraw	$0.02 -$ 0.05

Gas fees vary based on network congestion. Keep at least $1-2 of ETH in your wallet.

Total Cost Calculation

Formula

Total Fees = Opening Fee + Closing Fee + Interest + Gas

Complete Example

Full Trade Cost Breakdown

Trade Setup:

Collateral: 100 USDC
Leverage: 10x
Position Size: 1,000 USDC
Duration: 24 hours
Entry Price: $50,000
Exit Price: $52,500 (+5%)

Fee Calculation:

Fee	Calculation	Amount
Opening Fee	1,000 × 0.1%	1.00 USDC
Closing Fee	1,000 × 0.1%	1.00 USDC
Interest (24h)	1,000 × 0.001% × 24	0.24 USDC
Gas (open + close)	Estimate	~0.20 USDC
Total Fees		2.04 USDC

P&L Calculation:

Item	Amount
Gross Profit	1,000 × 5% = 50.00 USDC
Total Fees	-2.04 USDC
Net Profit	47.96 USDC
Return on Collateral	47.96%

Fee Impact by Trade Duration

Fees affect short-term and long-term trades differently:

Short-Term Trades (< 24 hours)

Fixed fees (open/close) dominate
Interest is minimal
Need larger price moves to be profitable

Breakeven calculation:

Breakeven Move = (Opening Fee + Closing Fee) / Position Size
          = (0.1% + 0.1%)
          = 0.2% price move needed

Long-Term Trades (> 1 week)

Interest becomes significant
Fixed fees less impactful
Need to factor daily interest into profit targets

Example (1 week hold):

Position: 1,000 USDC
Opening + Closing Fees: 1.60 USDC
Interest (168 hours): 1,000 × 0.001% × 168 = 1.68 USDC
Total Fees: 3.28 USDC
Breakeven: 0.328% price move

Fee Comparison

How do Limora fees compare?

Platform	Trading Fee	Funding/Interest
Limora	0.1% + 0.1%	~0.001%/hour
GMX	0.1%	0.01%/hour (variable)
dYdX	0.05% taker	0.00125%/hour
CEX (typical)	0.02-0.05%	0.01-0.03%/8h

Reducing Costs

Hold positions longer

Fixed fees (open/close) are amortized over longer holds. A 24-hour trade pays the same opening fee as a 1-hour trade.

Target larger moves

Aim for price moves that significantly exceed your fee breakeven point. Don’t scalp for 0.1% moves.

Time gas-heavy actions

If not urgent, wait for lower network activity to submit transactions. Off-peak hours typically have lower gas.

Batch operations

If depositing and trading, do so in one session to minimize separate gas transactions.

Fee Distribution

Where do the fees go?

Recipient	Share	Purpose
Protocol Treasury	30%	Development, audits, operations
Matchers	70%	Incentive to provide liquidity

Interest payments are split 70% to matchers and 30% to the protocol treasury.

Liquidation Fees

If your position is liquidated:

Fee	Rate
Liquidation Penalty	5% of remaining collateral
Closing Fee	0.1% of position size

Liquidation is costly—use stop-losses to avoid it.

Calculator

Estimate your trading costs: Inputs:

Collateral: [Amount] USDC
Leverage: [Multiplier]x
Expected Hold: [Hours]
Target Move: [Percent]%

Outputs:

Position Size
Opening Fee
Closing Fee
Estimated Interest
Total Fees
Breakeven Price Move
Net Profit at Target

A fee calculator tool will be available in the trading interface.

Next Steps

Trading Overview

Return to trading fundamentals.

Lending Overview

Learn how matchers earn fees.

Getting Started

Protocol

Trading

Trading Game

Matching

Staking

Features

Resources

Legal

Fee Overview

Opening Fee

Closing Fee

Interest (Borrowing Fee)

Interest Calculation

Current Rates

Interest Example

Network Gas Fees

Total Cost Calculation

Formula

Complete Example

Full Trade Cost Breakdown

Fee Impact by Trade Duration

Short-Term Trades (< 24 hours)

Long-Term Trades (> 1 week)

Fee Comparison

Reducing Costs

Fee Distribution

Liquidation Fees

Calculator

Next Steps

Trading Overview

Lending Overview

​Fee Overview

​Opening Fee

​Closing Fee

​Interest (Borrowing Fee)

​Interest Calculation

​Current Rates

​Interest Example

​Network Gas Fees

​Total Cost Calculation

​Formula

​Complete Example

Full Trade Cost Breakdown

​Fee Impact by Trade Duration

​Short-Term Trades (< 24 hours)

​Long-Term Trades (> 1 week)

​Fee Comparison

​Reducing Costs

​Fee Distribution

​Liquidation Fees

​Calculator

​Next Steps

Trading Overview

Lending Overview

Fee Overview

Opening Fee

Closing Fee

Interest (Borrowing Fee)

Interest Calculation

Current Rates

Interest Example

Network Gas Fees

Total Cost Calculation

Formula

Complete Example

Fee Impact by Trade Duration

Short-Term Trades (< 24 hours)

Long-Term Trades (> 1 week)

Fee Comparison

Reducing Costs

Fee Distribution

Liquidation Fees

Calculator

Next Steps