Oil options' Friday discount fades as crypto perps offer weekend hedge

The long-standing pattern of WTI crude options losing value on Friday afternoons is starting to shift. Implied volatility in short-dated contracts has historically dropped as traders closed positions they could not hedge over the weekend. That discount is narrowing, and analysts at Energy Aspects point to crypto perpetual futures as the reason.

Perps run 24 hours a day, seven days a week. They let anyone take a directional bet on oil without waiting for Monday's open. The mechanism has existed for years in crypto but only recently attracted meaningful volume in commodity-linked derivatives.

On March 8, a Sunday, the total open interest on the decentralized exchange Hyperliquid hit $1.2 billion. Traders rushed to hedge Iran-Israel risks that traditional markets could not price until Monday. The event was a turning point.

"For the first time, traders can hedge options exposure through the weekend, when geopolitical risk has become disproportionately concentrated," analysts led by Tim Skirrow wrote in a note. "This development has implications for the well-documented 'weekend effect' in short-dated WTI options, where implied volatility is structurally depressed on Fridays as long gamma holders liquidate positions they cannot hedge over the market closure."

Martin Lee, market insights lead at DWF Labs, said weekend volume for oil perps on Hyperliquid has grown roughly 25% since March, even after the spike from the Iran conflict cooled. Overall weekday volume still runs two to three times higher than weekend volume, but the gap is closing.

Energy Aspects estimates that if a continuous futures contract were available, it would create roughly 40% more hedging sessions over the life of a typical contract. That math assumes traders use perps to hold options they otherwise would have sold before Friday's close.

The shift is not yet large enough to pull in Wall Street's biggest firms. Liquidity remains modest. In March and April, the average volume of crude oil perps accounted for about 2% and 4% of the daily turnover in CME's primary futures contracts, according to Binance Research data.

"The main issue is not really that they can't," said Gracy Chen, CEO of Bitget, a centralized exchange that ranked second in commodities and stock perps volume during the second quarter. "It's probably more like they don't see it as profitable enough for them to invest … at least not yet."

Infrastructure is another barrier. Banks do not move collateral on weekends. Clearing systems are mostly dark from Friday evening to Monday morning. Mustafa Al Niama, former Goldman Sachs head of digital assets of the Americas and now head of capital markets at Mysten Labs, said collecting margin on a Saturday afternoon is not feasible under current rails.

"You cannot do that until you put the infrastructure in place that you have Monday through Friday," said Terry Duffy, chairman and CEO of CME Group.

CME itself has proposed 24/7 contracts for WTI crude and gold, but the Commodity Futures Trading Commission blocked the launch. CME is now suing the agency. The regulator's action suggests that institutional adoption of around-the-clock trading may face policy hurdles even as the market logic shifts.

Even without the big banks, perps are already changing how traders prepare for the week. Hein Tibosch, head of digital assets OTC and product at Flow Traders, said perpetual markets have become a price-discovery tool before traditional markets reopen.

"The perps ... will be a pretty good indicator of where the market is heading," he said. "You have some direction."

One trader at a proprietary market-making firm active in both traditional and crypto markets, who spoke on condition of anonymity, described the same shift. "It's not really a surprise anymore by Sunday's open," he said, noting that traders increasingly watch crypto markets over the weekend to gauge where CME futures will begin trading.

That may be the most concrete impact so far. Perps are not replacing CME, but they are giving traders a second source of price discovery while the rest of the market sleeps. For the first time, a Friday afternoon decision to hold an option position is no longer a blind bet on the weekend.

Duffy sees a longer-term shift. "I think that markets will be 24/7 down the road. All markets," he said.

Whether perps can actually reshape the traditional market remains uncertain. Volumes, by Wall Street's standards, are still modest. The total value of all perps on centralized exchanges reached $62 trillion in 2025, but that figure is dominated by crypto-native assets, not oil or gold.

Yet the trend is visible. The Friday discount on WTI volatility is narrowing. Traders have a tool they did not have two years ago. Some of them are already using it.

"For lots of players, for example, a hedge fund or quant shop, if you can just have your strategies run instead of five days a week, seven days a week, that's two extra days of trading," said Tibosch. "So if you can have alpha, bring it on."