> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tc.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Roll Schedules

> WTI and Brent futures contract transitions by roll window.

WTI/USDC and BRENT/USDC use dated futures contracts as reference prices. Both markets follow the same five-point monthly roll schedule, which blends the outgoing and incoming contract prices.

## Contract codes

The table uses [public Pyth futures contract codes](https://docs.pyth.network/price-feeds/pro/futures-terminology). For example, `WTIU6` identifies the September 2026 WTI contract and `BRENTU6` identifies the September 2026 Brent contract.

## Schedule

All times are in Eastern Time (ET). Each transition uses the following outgoing/incoming daily weights: 80/20, 60/40, 40/60, 20/80, and 0/100.

| Instrument | 2026-08-07 5:30 PM to<br />2026-08-13 5:30 PM ET | 2026-09-08 5:30 PM to<br />2026-09-14 5:30 PM ET | 2026-10-07 5:30 PM to<br />2026-10-13 5:30 PM ET |
| ---------- | ------------------------------------------------ | ------------------------------------------------ | ------------------------------------------------ |
| WTI/USDC   | `WTIU6` to `WTIV6`                               | `WTIV6` to `WTIX6`                               | `WTIX6` to `WTIZ6`                               |
| BRENT/USDC | `BRENTV6` to `BRENTX6`                           | `BRENTX6` to `BRENTZ6`                           | `BRENTZ6` to `BRENTF7`                           |