Market Specifications
Contract specifications for every perpetual market listed on the Nexus Exchange. Every value below is a per-market parameter the venue is configured with, not a platform-wide constant — a market's tick size, margin rates, funding cap, and position limits are set when it is listed and tuned between release gates.
Some values below are not deployed yet. The table specifies the configuration for the next release. As of the venue check on 2026-08-18, the deployed testnet venue still serves different values for the following:
Everything else on this page matches what the venue serves today.
BTC-USDX-PERP
Maintenance margin rate
2%
1%
ETH-USDX-PERP
Maintenance margin rate
2%
1%
SOL-USDX-PERP
Initial margin rate
2%
5%
SOL-USDX-PERP
Maintenance margin rate
2%
2.5%
SOL-USDX-PERP
Maximum leverage
50×
20×
Instruments
BTC-USDX-PERP
Bitcoin, the largest crypto asset by market capitalization.
BTC / USD index
USDX
24/7, continuous
ETH-USDX-PERP
Ether, the native asset of the Ethereum network.
ETH / USD index
USDX
24/7, continuous
SOL-USDX-PERP
Solana, the native asset of the Solana network.
SOL / USD index
USDX
24/7, continuous
All markets are quoted, margined, and settled in USDX, and trade continuously — there are no session breaks, daily settlement windows, or expiries. The underlying is an external index price, not the last trade on the Nexus book; see Price Oracles for how the index is constructed and how stale feeds are handled.
Order and price increments
BTC-USDX-PERP
0.5 USDX
0.001 BTC
0.001 BTC
100 BTC
ETH-USDX-PERP
0.10 USDX
0.01 ETH
0.01 ETH
1,000 ETH
SOL-USDX-PERP
0.01 USDX
0.1 SOL
0.1 SOL
10,000 SOL
Tick size is the smallest price increment an order may be priced at. Lot size is the smallest quantity increment. An order is rejected if its price is not a whole multiple of the tick size, if its quantity is not a whole multiple of the lot size, or if its quantity falls outside the minimum/maximum bounds. See Order Types.
Margin, leverage, and position limits
BTC-USDX-PERP
50×
2%
1%
10,000 BTC
ETH-USDX-PERP
50×
2%
1%
50,000 ETH
SOL-USDX-PERP
20×
5%
2.5%
200,000 SOL
Initial margin rate is the fraction of position notional your account equity must cover to open a position; maintenance margin rate is the fraction it must keep to avoid liquidation. Maximum leverage is the reciprocal of the initial margin rate. Margin is whole-account cross margin — your entire USDX balance backs every open position. See Margining and Liquidations.
Open interest is capped per market. The cap bounds the total size of all open positions on one side of a market. Once a market is at its cap, orders that would increase open interest are rejected; orders that reduce it — closing or reducing an existing position — continue to be accepted. The cap is a venue risk control, not a per-account limit.
Funding
BTC-USDX-PERP
Hourly
Every 60s
0.1%
ETH-USDX-PERP
Hourly
Every 60s
0.1%
SOL-USDX-PERP
Hourly
Every 60s
0.1%
Funding settles at the interval above, with the mark/index premium sampled at the sampling interval and time-weighted across the period. The rate paid in any one interval is clamped to the funding-rate cap in both directions. See Funding Rates.
Fees
BTC-USDX-PERP
2 bps rebate
5 bps
ETH-USDX-PERP
2 bps rebate
5 bps
SOL-USDX-PERP
2 bps rebate
5 bps
Maker rebates are credited and taker fees charged on filled notional. This is the venue's base tier; query the schedule in effect for your account at any time via GET /account/fees. See Exchange REST.
Generated from the per-market config home, the configuration the exchange and oracle services boot from. Cross-checked against the venue's public GET /markets response of 2026-08-18. Where the two disagree, the difference is stated at the top of this page; an undocumented disagreement is a bug — the page is regenerated and diffed on every change to a market's configuration.
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