> For the complete documentation index, see [llms.txt](https://docs.ticko.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ticko.xyz/trading-on-ticko/funding.md).

# Funding

Funding is a periodic payment between long and short position holders that keeps the perpetual contract price anchored to the spot oracle price. Ticko does not take any portion of funding payments.

## Funding rate calculation

The funding rate is composed of two parts:

| Component         | Description                                                                                                                                   |
| ----------------- | --------------------------------------------------------------------------------------------------------------------------------------------- |
| Interest rate (I) | A fixed base rate representing the cost-of-carry between the quote and base currencies. Default: 0.01% per 8 hours.                           |
| Premium index (P) | Measures the deviation between the Ticko contract price and the oracle price. Sampled every 5 seconds and averaged over the funding interval. |

The premium index is calculated using impact bid/ask prices derived from the order book at a depth defined by the impact margin notional (configured per symbol).

`Funding Rate = clamp(P + clamp(I - P, -d, +d), Floor, Cap) × (funding_interval / 8h)`

Where:

* `d` is the clamp deviation (default: 5 bps)
* `Cap / Floor` are the maximum and minimum rates per interval, derived from the maintenance margin rate
* The `funding_interval / 8h` factor scales the rate proportionally when the interval differs from 8 hours

## Funding interval

All symbols settle funding every 1 hour.

## Settlement

* If funding rate is positive: longs pay shorts.
* If funding rate is negative: shorts pay longs.
* Payment per position: `oracle_price × position_size × funding_rate`
* Settlement uses the oracle price (not mark price).
* Funding is settled per position at the end of each funding interval.


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