Risk Limits

AFX employs a tiered risk limit system that adjusts the maximum available leverage and maintenance margin rate (MMR) based on position size. As your position grows larger, the maximum leverage decreases and the maintenance margin requirement increases.

How It Works

Each trading pair is assigned to a margin table. The table determines the leverage tiers and base MMR for that pair. Query live product metadata to map a market to its current marginTableId:

GET /info/public/product-meta

When a position's notional value crosses into a higher tier, the entire position is subject to the new tier's maximum leverage. If the current leverage exceeds the new tier's maximum, you will need to reduce leverage or close part of the position.

Margin Table 1

Applies to: Not yet

Position Notional (USDC)	Max Leverage	MMR
0 – 20,000,000	40x	1.25%
> 20,000,000	20x	1.25%

Margin Table 2

Example markets: XAUUSDC, CLUSDC, SOLUSDC, XRPUSDC

Position Notional (USDC)	Max Leverage	MMR
0 – 2,000,000	25x	2%
2,000,000 – 5,000,000	20x	2%
> 5,000,000	10x	2%

Margin Table 3

Example markets: ZECUSDC, ONDOUSDC

Position Notional (USDC)	Max Leverage	MMR
0 – 1,000,000	20x	2.5%
> 1,000,000	10x	2.5%

Margin Table 4

Example markets: equity, ETF, and other lower-leverage markets

Position Notional (USDC)	Max Leverage	MMR
0 – 50,000	10x	5%
> 50,000	5x	5%

Margin Table 5

Example markets: BTCUSDC, ETHUSDC

Position Notional (USDC)	Max Leverage	MMR
0 – 1,000,000	100x	0.5%
1,000,000 - 2,000,000	60x	0.5%
2,000,000 - 20,000,000	40x	0.5%
> 20,000,000	20x	0.5%

Maintenance Margin Rate

The Maintenance Margin Rate (MMR) is the minimum margin percentage required to keep a position open. For the lowest tier of each type, the base MMR is shown in the table. Higher tiers have a proportionally higher effective MMR, calculated as:

Effective MMR = 1 / (2 × Max Leverage)

When the margin ratio (Maintenance Margin / Position Equity) reaches 100%, the position is liquidated. See Liquidation for details.