CME Group’s 1-Ounce Gold futures (1OZ) have traded around the clock since Friday, July 24, 2026, weekends included. Nearly 15,000 contracts changed hands in the first weekend session, about $60 million in notional value, CME said. For traders on a futures prop firm evaluation, the open question is whether the firm and its platform route that weekend session at all.
What changed
CME’s clearing notice 26-220, published on June 26, 2026, set out amendments to the 1-Ounce Gold futures contract for 24/7 trading hours on CME Globex, effective July 24, 2026. 1OZ is one tenth the size of Micro Gold (MGC).
Several contract details moved with the hours. Trading Technologies told its users that weekend trading began that Friday, with day-one maintenance extended to 30 minutes from 4:00 to 4:30 pm CT, and that 1OZ moved to MDP 3.0 channel 329 and market segment 74. Where weekend trading is not enabled in GC2, the same note says, GT (good-till) orders are eliminated on Friday at 4:00 p.m. CT.
| Item | Before July 24, 2026 | From July 24, 2026 |
|---|---|---|
| 1OZ trading hours | No weekend session | 24/7 on CME Globex |
| Block trades in 1OZ | Supported | No longer supported |
| 1-Ounce Gold TAS (TG) | Listed | Delisted |
First weekend volume
The first weekend’s nearly 15,000 contracts sit against an average of 87,000 contracts a day for 1OZ in the first half of 2026, on CME’s figures. The contract launched in January 2025. CME also reported that its metals business set a record in the first half of 2026 at 1.3 million contracts traded daily, up 55% year on year.
What prop traders should check
An evaluation or funded account at a futures prop firm is a paid service on simulated trading, and the firm and its platform decide which products and which sessions a trader can reach. None of the sources above covers firm policy, so the exchange opening a weekend session says nothing about whether any given firm permits it.
Three things are worth confirming with the firm directly: whether 1OZ appears in its product list at all, whether its platform routes the weekend hours rather than closing at the old Friday cutoff, and how a position carried through Saturday and Sunday is treated against the firm’s daily loss limit and drawdown rules. Firms that prohibit weekend holding may treat the new session as a closed period regardless of the exchange calendar.
