The prediction market for the national average price of regular gasoline at the end of March 2026 has undergone a significant repricing, with traders scaling back bets on extreme price spikes above $4.60 per gallon. This shift followed government intervention aimed at stabilizing energy markets. The probability has been reallocated to a moderately high range, primarily between $4.10 and $4.50 per gallon, suggesting a consensus that while prices will remain elevated, the most severe tail risks have been mitigated.
Distribution Analysis
On March 18, the market saw a sharp, coordinated drop in the probabilities for the highest price outcomes. The contract for prices "Above 4.80" fell by 33.0 percentage points, while the "Above 4.60" and "Above 5.00" contracts fell by 32.0 and 23.0 points, respectively.
This substantial probability mass shifted into the middle-to-upper end of the distribution. The contract for prices "Above 4.40" saw the largest single gain, rising 18.0 percentage points. Other significant gainers included contracts for prices above $4.30 (+14.0 pp), $4.10 (+13.0 pp), and $4.20 (+13.0 pp). The market's median forecast, or the point at which the outcome is considered more likely than not, now sits between $4.40 and $4.45 per gallon.
| Outcome | Current Prob | Change (24h) | Volume (24h) |
|---|---|---|---|
| Above 3.60 | 99% | +1.0pp | 6,228 |
| Above 3.90 | 98% | +6.0pp | 20,614 |
| Above 4.00 | 92% | +8.0pp | 28,466 |
| Above 4.10 | 90% | +13.0pp | 43,402 |
| Above 4.20 | 89% | +13.0pp | 44,335 |
| Above 4.30 | 80% | +14.0pp | 44,843 |
| Above 4.40 | 54% | +18.0pp | 52,792 |
| Above 4.50 | 40% | +12.0pp | 57,861 |
| Above 4.60 | 35% | -32.0pp | 9,685 |
| Above 4.70 | 24% | -4.0pp | 10,870 |
| Above 4.80 | 14% | -33.0pp | 12,160 |
| Above 4.90 | 9% | -8.0pp | 20,781 |
| Above 5.00 | 10% | -23.0pp | 25,235 |
Table includes a selection of the 26 eligible outcomes, sorted by current probability. Full distribution available on the market page.
What's Driving the Shift
The sharp repricing appears to be a direct reaction to US government announcements on March 18 aimed at easing supply constraints amid escalating geopolitical tensions [7]. According to market news service Trading Economics, the measures included a 60-day waiver of the Jones Act of 1920—a law that restricts shipping between U.S. ports to American-flagged ships—and a coordinated release of 172 million barrels from strategic petroleum reserves [7].
The Jones Act waiver is intended to allow international tankers to transport fuel between domestic ports, alleviating regional supply bottlenecks that can exacerbate price spikes [7]. This, combined with the large-scale reserve release, seems to have convinced traders that the federal government is taking decisive action to prevent a worst-case scenario for fuel prices, even as the underlying supply disruptions persist.
Market Context
This market shift occurred against a backdrop of rapidly rising fuel costs throughout March. The national average price for regular gasoline surged from $3.015 per gallon on March 2 to $3.720 by March 16, according to data from the U.S. Energy Information Administration (EIA) [3]. By March 19, AAA reported the national average had climbed further to $3.884 per gallon [1].
The price surge was largely attributed to an escalating conflict in the Middle East, including U.S. strikes on Iran and the subsequent disruption of oil and LNG traffic through the Strait of Hormuz [5, 7]. This vital chokepoint handles approximately 20% of the world's oil supply, and its effective closure sent crude oil prices above $100 per barrel, fueling fears of a prolonged global energy crisis [5, 7].
Prior to the government's intervention, the market had priced in a high probability of prices continuing their rapid ascent through the end of the month. The recent shift indicates that while the consensus remains that prices will be high—well above current levels—traders believe the announced supply-side interventions will be sufficient to place a ceiling on the price rally and prevent a run toward the record high of $5.016 per gallon set in June 2022 [4]. Trading volumes were robust across the contracts that saw the most significant price action, indicating a high-conviction move toward this new consensus.
What to Watch
The market is set to close on March 31, 2026, with the settlement price determined by the AAA National Average for regular gasoline on that date. Traders will be closely watching for any new developments in the Middle East conflict, as well as data on the real-world impact of the Jones Act waiver and strategic reserve releases on domestic fuel inventories and prices. The market's current pricing suggests that while the immediate risk of a catastrophic spike has been curtailed, significant uncertainty remains.
