Oil $105, Stocks Slide as Fed Hike Odds Hit 45%

TL;DR

WTI crude topped $105 per barrel on Friday as the Strait of Hormuz remained effectively closed and the Trump-Xi summit produced no resolution on the Iran conflict. Oil is up more than 9% for the week. That supply shock is feeding directly into inflation fears, with the Cleveland Fed tracking headline CPI at approximately 6.1%. CME FedWatch rate-hike odds for 2026 have surged from 1% to 45% in a single month. US equities sold off broadly as of midday ET, with the S&P 500 down roughly 1.1% (about 81 points), the Nasdaq Composite off 1.54% (about 456 points), and the Dow down around 0.8% (roughly 400 points). Bitcoin retreated near $82,000.

Oil Tops $105 as Stocks Sell Off and Fed Rate Hike Odds Reprice

What Happened

WTI crude oil futures climbed to approximately $105.40 per barrel on Friday, May 15, a gain of more than 4% on the day and roughly 9% for the week. The driver is the ongoing US-Iran military conflict, which has effectively closed the Strait of Hormuz to normal tanker traffic. Only a small number of vessels have managed to exit the Persian Gulf since hostilities began.

President Donald Trump delivered contradictory signals on Friday, initially stating that the US did not need the Strait open, then later saying alongside Chinese President Xi Jinping that "we want the straits open." Despite the high-level diplomatic engagement, the Trump-Xi summit produced no concrete agreement on Iran or a credible path to reopening the corridor.

The International Energy Agency warned this week that the global oil market could remain severely undersupplied through October, even if hostilities end next month. Separately, the Cleveland Fed's real-time inflation tracking model puts headline CPI running at approximately 6.1% and core PCE near 3.7%, both well above the Fed's 2% target.

Markets responded sharply. CME FedWatch data now shows a 45% probability of at least one Federal Reserve rate hike sometime in 2026, up from just 1% one month ago. Charles Schwab's morning market update flagged this repricing as one of the primary drivers of early selling pressure on equities at the open Friday.

As of midday ET, US equities were broadly lower. The S&P 500 was down roughly 1.1% (about 81 points), the Nasdaq Composite was off 1.54% (roughly 456 points), and the Dow Jones Industrial Average had fallen around 0.8% (about 400 points). Gold, often a beneficiary of inflation fears, was actually down about $125 to $4,552, weighed down by rising real yields. Bitcoin was retreating near $82,000.

Why Markets Moved

The logic is fairly direct. About one-fifth of the world's daily oil supply passes through the Strait of Hormuz. With tanker traffic severely limited, global inventories are tightening at pace. The IEA now projects the supply shortfall will persist well into autumn even under an optimistic scenario for when fighting ends.

Higher oil prices flow directly into energy costs across the economy, lifting headline inflation. When inflation readings are already running significantly above target, the Federal Reserve faces pressure to consider rate hikes rather than cuts. A 44-percentage-point swing in hike expectations within a single month is unusual and reflects how quickly the macro narrative shifted.

Higher rates, or a shift from expected cuts to expected hikes, compress equity valuations. This effect is most pronounced for high-multiple technology and growth stocks, which explains why the Nasdaq is underperforming on Friday. Investors are unwinding the valuation premium they applied when rate cuts were the expected base case.

Gold's pullback fits this picture. When nominal yields rise because of tightening expectations rather than growth optimism, they raise the opportunity cost of holding non-yielding assets like gold, suppressing the price even when inflation is elevated.

Implications for Traders

Equities and index futures: The sell-off is broad but concentrated in growth and tech. Futures traders should watch S&P 500 support levels near the 50-day and 100-day moving averages. If rate hike odds continue rising or if upcoming inflation data surprises to the upside, a technical breakdown in equities could accelerate the downside.

Energy and commodities: WTI at $105 with a closed Hormuz and undersupply forecasts extending to October provides energy bulls a structural argument. Geopolitical developments can reverse quickly, however, so careful position sizing and stop placement matter considerably in this environment.

Fixed income and rates: The repricing of Fed expectations has been rapid. Bond traders should watch the short end of the yield curve closely. Any Fed governor commentary or a CPI print above consensus could push 2-year yields sharply higher and add fresh pressure to equity markets when they reopen Monday.

Crypto: Bitcoin near $82,000 is pulling back alongside broader risk assets. Crypto tends to underperform in risk-off moves driven by rate expectations tightening, particularly when the sell-off is equity-led. If equities find a floor, Bitcoin may stabilize. A sustained loss of the $80,000 level would be a meaningful technical signal for near-term direction.

Potential Positives vs Negatives

Potential positives:

A diplomatic resolution to the Strait of Hormuz closure could trigger a sharp reversal in oil prices and lift market sentiment quickly. The Trump-Xi summit, while producing no deal, kept dialogue open.
US domestic energy producers are benefiting from high oil prices, with exports near record levels. Energy sector equities offer a natural long hedge in this environment.
If hike odds plateau rather than continue rising, equities could stabilize once the initial repricing is absorbed.

Potential negatives:

Headline CPI tracking at 6.1% is already well above Fed tolerance. If oil holds at current levels into the next print, a reading above 6.5% could shift Fed rhetoric toward an explicit hike signal.
A rate hike cycle, even a modest one, would reprice equity multiples more broadly and could introduce volatility in credit markets beyond equities.
Extended Hormuz disruption raises global recession risk through energy supply shocks and rising transportation and logistics costs. Airlines and freight operators are already under pressure.
Gold declining despite elevated inflation suggests real yields are rising, which is an additional headwind for both equities and Bitcoin.

What Could Happen From Here

Base case: Diplomatic talks continue without a near-term breakthrough. Oil consolidates between $100 and $110 per barrel, equities remain under pressure, and the Fed maintains a hawkish tone without explicitly committing to a June hike. The S&P 500 pulls back toward technical support levels but does not break down structurally.

Confirmed by: Continued Hormuz closure, steady-to-rising oil prices, and cautious Fed language without an explicit hike commitment.
Invalidated by: A credible ceasefire announcement or diplomatic agreement that reopens the corridor to normal tanker traffic.

Upside case: A surprise diplomatic resolution leads to partial reopening of the Strait. Oil falls sharply, inflation expectations ease, rate hike odds reverse, and equities recover. The Nasdaq leads the rebound as growth stocks recover the multiple compression from the past week.

Confirmed by: Official statements from Iran or the US confirming a ceasefire or supply agreement; WTI falling decisively back below $90.
Invalidated by: Diplomatic talks collapsing, further escalation, or another incident in the Hormuz area.

Downside case: Oil pushes and holds above $110 per barrel, driving the next CPI reading above 6.5%. Fed officials signal a rate hike is on the table at the June meeting. Equities enter a more serious correction, bond yields spike, and credit conditions tighten beyond equity markets.

Confirmed by: CPI print above 6.5%, Fed governor speeches signaling active consideration of a hike, oil sustaining above $110.
Invalidated by: Supply normalizing faster than expected, or inflation data printing materially below current Cleveland Fed tracking.

What to Watch Next (Next 24 Hours)

Any statement from the US State Department, Pentagon, or Iranian officials on ceasefire progress or negotiation terms.
Trump administration comments on Federal Reserve policy or the Iran strategy over the weekend.
University of Michigan Consumer Sentiment data, which may reflect early consumer response to energy prices.
Crude oil futures weekly close relative to the $105 level and how energy markets settle into the weekend.
Bitcoin holding or losing the $80,000 support level through the weekend.
Any Fed governor speeches or media appearances scheduled before the June FOMC meeting.

FAQ

Why are stocks falling when oil is rising? Higher oil prices feed into inflation. When inflation is already elevated, the Federal Reserve faces pressure to raise interest rates. Higher rates reduce the present value of future corporate earnings, putting downward pressure on stock prices, especially in growth and technology sectors where valuations are most rate-sensitive.

What is the Strait of Hormuz and why does it matter to markets? The Strait of Hormuz is a narrow waterway between Oman and Iran. Approximately 20% of the world's daily oil supply passes through it. When the strait is closed or significantly disrupted, global oil supply tightens rapidly, pushing energy prices higher across the world and directly feeding into inflation and growth expectations.

Sources

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Feature image: Strait of Hormuz from NASA Space Shuttle STS-59. Public domain via Wikimedia Commons.

Header image source: wikimedia by Ken Lund from Reno, Nevada, USA. License: CC BY-SA 2.0.

Oil Tops $105 as Stocks Slide and Fed Rate Hike Odds Jump to 45%