> For the complete documentation index, see [llms.txt](https://docs.lighter.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lighter.xyz/trading/real-world-assets-rwas/futures-contract-price-rolling-mechanism.md).

# Futures Contract Price Rolling Mechanism

Some markets (WTI, NATGAS, BRENTOIL, XCU, and WHEAT) use futures contracts as their underlying prices. To handle contract expirations, prices are gradually transitioned from the current month’s contract to the next month’s contract between the 5th and 10th business day.

Each day at 5:30 PM ET for WTI and NATGAS and at 7:00 PM ET for BRENTOIL, 20% of the price shifts from the current month to the next month. This means the price moves progressively, starting at 100% current month and ending at 100% next month over the five-day window.

Note: the underlying markets for WTI and NATGAS are closed between 5:00 PM ET and 6:00 PM ET, while for BRENTOIL they are closed between 6:00 PM ET and 8:00 PM ET (11PM London time - 1AM London time).

#### Example Roll Schedule (June, 2026)

| Date       | Time       | Front-Month | Next-Month |
| ---------- | ---------- | ----------- | ---------- |
| 2026-07-08 | 5:30 PM ET | 80%         | 20%        |
| 2026-07-09 | 5:30 PM ET | 60%         | 40%        |
| 2026-07-10 | 5:30 PM ET | 40%         | 60%        |
| 2026-07-13 | 5:30 PM ET | 20%         | 80%        |
| 2026-07-14 | 5:30 PM ET | 0%          | 100%       |

#### Roll Schedules (WTI, NATGAS, WHEAT, COPPER)

<table><thead><tr><th width="183.8173828125">Roll Date</th><th width="178.2109375">2026-07-08 5:30PM to 2026-07-14 5:30PM ET</th><th width="161.8525390625">2026-08-07 5:30PM to 2026-08-13 5:30PM ET</th><th width="169.314453125">WHEAT</th><th width="163.7666015625">2026-10-07 5:30PM to 2026-10-13 5:30PM ET</th><th width="167.072265625">2026-11-06 5:30PM to 2026-11-12 5:30PM ET</th><th width="160.24609375">2026-12-07 5:30PM to 2026-12-11 5:30PM ET</th></tr></thead><tbody><tr><td>WTI</td><td>Q6 to U6</td><td>U6 to V6</td><td>V6 to X6</td><td>X6 to Z6</td><td>Z6 to F7</td><td>F7 to G7</td></tr><tr><td>NATGAS</td><td>Q26 to U26</td><td>U26 to V26</td><td>V26 to X26</td><td>X26 to Z26</td><td>Z26 to F27</td><td>F27 to G27</td></tr><tr><td>WHEAT</td><td>U26</td><td>U26 to Z26</td><td>Z26</td><td>Z26</td><td>Z26 to H27</td><td>H27</td></tr><tr><td>COPPER</td><td>U6</td><td>U6 to Z6</td><td>Z6</td><td>Z6</td><td>Z6 to H7</td><td>H7</td></tr></tbody></table>

#### Roll Schedules (BRENTOIL)

<table><thead><tr><th width="183.8173828125">Roll Date</th><th width="178.2109375">2026-07-08 7:00PM to 2026-07-14 7:00PM ET</th><th width="161.8525390625">2026-08-07 7:00PM to 2026-08-13 7:00PM ET</th><th width="169.314453125">2026-09-08 7:00PM to 2026-09-14 7:00PM ET</th><th width="163.7666015625">2026-10-07 7:00PM to 2026-10-13 7:00PM ET</th><th width="167.072265625">2026-11-06 7:00PM to 2026-11-12 7:00PM ET</th><th width="160.24609375">2026-12-07 7:00PM to 2026-12-11 7:00PM ET</th></tr></thead><tbody><tr><td>BRENTOIL</td><td>U6 to V6</td><td>V6 to X6</td><td>X6 to Z6</td><td>Z6 to F7</td><td>F7 to G7</td><td>G7 to H7</td></tr></tbody></table>