Oil futures settled lower Friday, marking a third consecutive weekly loss during regular trading, but reversed sharply higher in after-hours activity following confirmation of a U.S. military retaliatory strike against Iran. The development sent shockwaves through energy derivatives markets just minutes before the close of extended trading.
Market Context
The geopolitical escalation comes as oil had been grinding lower amid concerns over demand headwinds and sluggish traffic through the Strait of Hormuz. Brent crude had been hovering near multi-month lows, while West Texas Intermediate (WTI) struggled to maintain support levels that traders had considered key technical inflection points heading into the weekend.
Implied volatility in energy options contracts spiked immediately following the strike confirmation, with at-the-money (ATM) puts on crude ETFs seeing rapid unwinding as traders scrambled to adjust positions. The CBOE Volatility Index (VIX), which had been drifting lower this week, reversed course and climbed more than 3 points in after-hours trading.
The timing of the announcement—coming just minutes before the end of electronic trading—left many institutional desks scrambling to reassess weekend risk exposure ahead of Sunday futures rollover.
Analysis
Options market participants are now facing a classic geopolitical risk premium re-pricing scenario heading into the weekend. Traders who had been selling volatility in energy contracts, particularly those holding short gamma positions in WTI weekly expirations, are likely experiencing significant mark-to-market stress.
The strike response to Iran's Thursday attack on a commercial vessel transiting the Strait of Hormuz raises the specter of potential disruptions to roughly 20% of global oil supply that moves through this critical chokepoint. Market watchers had grown complacent about Middle East risk following months of relative quiet, and positioning reflects that—the most recent CFTC data showed net long positions in WTI near three-month lows.
Zero-days-to-expiry (0DTE) energy contracts are expected to see elevated activity Sunday night as traders look to express views ahead of the Asia open. The gamma profile of existing positions will likely see dealers forced into significant hedging adjustments, potentially amplifying price moves beyond what fundamentals alone would suggest.
Key Numbers
- Third consecutive weekly loss for oil futures before after-hours reversal
- Strait of Hormuz handles approximately 20% of global oil supply
- VIX climbed more than 3 points in after-hours following strike confirmation
- CFTC data showed WTI net longs near three-month lows entering the week
- Strike announced minutes before electronic trading session close
What to Watch
Traders should monitor U.S. Energy Information Administration (EIA) inventory data scheduled for release next week, as supply disruptions could complicate an already uncertain demand picture. Key technical levels to watch include $75 and $78 per barrel on WTI, with Brent facing resistance near $80.
Any escalation in rhetoric from Tehran will be closely watched by options desks, as further strikes or counter-strikes could trigger a sustained volatility spike in energy markets through month-end. The upcoming OPEC+ meeting calendar should also be factored into position sizing for those holding short gamma heading into July expiration.