How to Check the Spot-Futures Price Difference on Gate.io

Understanding Spot-Futures Basis on Gate.io

1. The spot-futures price difference—commonly called the basis—is calculated as futures price minus spot index price, expressed in USDT or percentage terms.

2. Gate.io displays this value directly on the perpetual contract trading page under the “Funding Rate” and “Mark Price” panels for each USDT-margined pair.

3. A positive basis indicates contango: futures trade at a premium to spot, often reflecting bullish sentiment or strong funding incentives.

4. A negative basis signals backwardation: futures trade below spot, typically associated with short-term supply pressure or funding rate drag.

5. The basis fluctuates continuously due to order book depth, open interest shifts, and real-time funding rate accruals every 8 hours.

Locating Real-Time Basis Data

1. Navigate to Gate.io’s “Futures” tab, select “USDT-Margined Contracts”, then choose a symbol like BTC_USDT or ETH_USDT.

2. Below the chart area, locate the “Market Info” box showing Mark Price, Index Price, and Basis (in USDT and %).

3. The Index Price is derived from a weighted average across five major spot exchanges, updated every second.

4. Clicking the “i” icon beside “Basis” opens a tooltip explaining its calculation method and data sources.

5. Historical basis values are not stored on the UI but can be extracted via the /futures/usdt/candles endpoint using interval=1m and field=basis.

Using API to Retrieve Basis History

1. Access the Gate.io Futures API v4 with Read permission enabled and IP whitelisting configured.

2. Call /futures/usdt/contracts/{contract} to fetch current basis, mark price, and index price for any active contract.

3. Use /futures/usdt/funding_rate with parameters ‘contract=BTC_USDT’ and ‘limit=200’ to retrieve the last 200 funding intervals alongside their corresponding basis snapshots.

4. Parse the response field ‘basis’ which contains the absolute difference between mark and index price at each funding timestamp.

5. Store responses locally to compute rolling 5-minute or 1-hour basis standard deviation for volatility analysis.

Interpreting Basis Extremes

1. A basis exceeding +1.5% for BTC_USDT over 15 consecutive minutes often precedes short squeezes in leveraged long positions.

2. A sustained basis below −0.8% for SOL_USDT correlates with elevated liquidation volume in the 30–60 minute window following the deviation.

3. Basis divergence greater than ±2.0% triggers automatic recalibration of the index price feed by Gate.io’s risk engine.

4. During high-volatility events such as ETF rebalance days, basis may oscillate between −1.2% and +1.7% within a single hour without triggering circuit breakers.

5. Arbitrage bots monitor basis thresholds of ±0.3% to initiate cross-exchange triangular trades involving spot, futures, and stablecoin lending markets.

Frequently Asked Questions

Q: Does Gate.io display basis for inverse contracts?A: No. Basis calculation and display are only available for USDT-margined perpetual and quarterly futures. Inverse contracts use BTC-denominated margin and lack an indexed USDT-based basis metric.

Q: Can I set up email alerts when basis crosses a custom threshold?A: Gate.io does not offer native email alerts for basis. Users must build external monitoring using the /futures/usdt/contracts/{contract} API endpoint with scheduled polling and SMTP integration.

Q: Why does the basis shown on the UI sometimes differ from my manual calculation using mark and index prices?A: The displayed basis uses millisecond-precision timestamps aligned to the funding interval clock. Manual calculations using UI-rounded prices introduce rounding errors of up to ±0.002 USDT on high-value assets like BTC.

Q: Is basis data available for expired futures contracts?A: No. The API and UI only serve basis data for currently listed, actively traded contracts. Historical basis for delisted contracts is not archived or retrievable.