Futures — Predicted Funding

GET /futures/predicted-funding/:symbol

Predicted funding rate for the next settlement period, based on current market premium.

Cost: $0.02 USDC

Path Parameters

Param	Type	Description
symbol	string	Symbol (e.g. BTC, ETH, SOL)

Request Example

curl -H "x-payment: <proof>" \
  https://api.foursec.xyz/futures/predicted-funding/ETH

Response

{
  "symbol": "ETH",
  "timestamp": "2026-07-08T14:30:00Z",
  "current_funding_rate": 0.0001,
  "predicted_funding_rate": 0.00012,
  "predicted_annualized_pct": 13.14,
  "next_funding_time": "2026-07-08T16:00:00Z",
  "time_to_funding_ms": 5400000,
  "premium_index": 0.00011,
  "mark_price": 2450.18,
  "index_price": 2449.50,
  "signal": "slightly_bullish",
  "funding_history": [
    { "time": "2026-07-08T08:00:00Z", "rate": 0.0001 },
    { "time": "2026-07-08T00:00:00Z", "rate": 0.00008 },
    { "time": "2026-07-07T16:00:00Z", "rate": 0.00015 }
  ]
}

How Predicted Funding Works

Binance perpetuals use an 8-hour weighted average of the premium index (difference between mark price and index price) to calculate the next funding rate. The predicted rate converges toward the actual rate as the settlement time approaches.

A positive predicted rate means longs will pay shorts at the next settlement. A negative rate means shorts will pay longs.

Data Source

Binance FAPI /fapi/v1/premiumIndex (current + predicted) and /fapi/v1/fundingRate (history). Cache TTL: 30 seconds.

Related Endpoints

• Current Funding Rate — latest settled rate
• Funding History — historical rates
• Cross-Exchange Compare — OKX/Bybit comparison