The Market That Was Breaking Records Last Week Is Breaking Down This Week
Seven days ago, the S&P 500 was setting record highs daily. The Nasdaq was on a seven-session winning streak. The Dow Jones Industrial Average had just reclaimed 50,000. Nvidia was surging to six-session highs on the back of the Trump-Xi summit in Beijing and the US government's clearance of H200 chip sales to Chinese companies. The mood in global financial markets was, by any reasonable assessment, one of cautious but genuine optimism — the sense that the AI-driven technology rally had enough fundamental momentum to push through the geopolitical and inflationary headwinds created by the US-Iran war. That mood has now shifted sharply. The week beginning May 19, 2026, opened with global equity markets under severe pressure from a convergence of risks that have individually been present for weeks but are now arriving simultaneously, compounding each other, and testing the resilience of a bull market that has been carrying an increasingly heavy burden.
Dow Jones Industrial Average futures fell 417 points, or 0.84 percent, in early Monday trading — the single largest pre-market futures decline of the past month. S&P 500 futures declined 0.67 percent, and Nasdaq-100 futures fell 0.74 percent. In Asia, the selloff was broad and decisive. Australia's S&P/ASX 200 fell 1.32 percent. Japan's Nikkei 225 lost 0.92 percent. Hong Kong's Hang Seng declined 1.49 percent. Taiwan's Taiex fell 1.02 percent. The Japanese 10-year government bond yield jumped more than 9 basis points to 2.793 percent — its highest level since 1996 — extending a global bond market selloff driven by mounting inflation fears across multiple major economies simultaneously. In Europe, markets opened lower across all major bourses. The proximate causes of the Monday deterioration were clear and specific: the drone strike on the UAE's Barakah nuclear power plant — the first time the Arab world's only nuclear facility had been struck in the Iran war — and President Trump's Sunday social media warning to Tehran that the clock is ticking and there will be nothing left of Iran if it does not act.
Oil Surges: Brent at $110 — Deutsche Bank Warns of $120
The most direct market transmission mechanism from the Iran war to global equities remains crude oil, and on May 19 that mechanism was functioning with full force. West Texas Intermediate futures rose 1.8 percent in early Monday trading to $107.26 per barrel. Brent crude — the international benchmark most sensitive to Middle East supply disruptions — advanced to $110.47 per barrel before extending toward $112 as the trading day progressed. Both benchmarks have now been trading above $100 per barrel consistently for an extended period, representing a sustained energy price shock of a magnitude that the global economy has not experienced since the worst days of the COVID-era supply chain disruptions of 2021-2022.
Deutsche Bank analysts, in a note released on May 18, raised their oil market risk assessment significantly. The bank warned that if disruptions in the Strait of Hormuz persist — and with approximately 1,600 commercial ships still stranded in and around the waterway, there is no immediate prospect of those disruptions ending — Brent crude could exceed $120 per barrel in a worst-case scenario. That figure, if realised, would represent a level of energy price pressure not seen in the modern global economy outside of wartime conditions. Shell Chief Executive Wael Sawan had already warned that the world might have produced one billion fewer barrels of oil as a consequence of the Iran war, and that shortages could emerge within weeks. The combination of those supply constraints with the additional disruption risk created by the Barakah nuclear plant strike — which demonstrated that Iran and its proxies are prepared to target critical energy infrastructure in Gulf states — adds a risk premium to oil prices that is very difficult to quantify but very easy to feel in market prices.
The consequences of oil at $110 to $120 per barrel for the United States economy are significant and immediate. American gasoline prices have already risen more than 50 percent since the Iran war began in late February 2026. At $110 Brent and $107 WTI, further increases at the pump are virtually certain. The April consumer price index, which showed annual inflation at 3.8 percent — the highest since May 2023 — was calculated using oil prices that were several dollars per barrel lower than current levels. May's inflation reading, when it is published in June, will reflect the additional energy price increase that has occurred since April and is very likely to come in even higher than April's already elevated reading.
Federal Reserve's Impossible Position: Rate Hike Probability Hits 45 Percent
The most structurally significant market development of the week beginning May 19, 2026, may not be any single session's price movement but the dramatic shift in Federal Reserve policy expectations that has occurred over the past three weeks. Just six weeks ago, the CME FedWatch tool showed a near-certainty — close to 99 percent — that the Federal Reserve would hold interest rates steady throughout 2026. That probability distribution has now reversed completely. As of Monday, May 19, FedWatch showed a 45 percent probability that the Federal Reserve will raise interest rates at some point before the end of 2026 — a level that represents one of the most rapid reversals in market-implied Fed policy expectations in the modern era of forward guidance and futures-based policy pricing.
The reversal reflects the accumulated impact of two consecutive months of above-consensus inflation data — the April CPI reading of 3.8 percent and the April PPI reading of 6 percent year-on-year, the highest since December 2022 — compounded by an oil price that has added additional inflationary pressure on top of already elevated core readings. Kevin Warsh, who took over as Federal Reserve chairman in the days preceding May 19, finds himself in an extraordinarily uncomfortable position at the very start of his tenure. Trump, who appointed Warsh and has publicly demanded that the Fed lower interest rates, is simultaneously pursuing a war policy in Iran that is driving the oil price increases that are making rate cuts impossible. Collin Martin of Schwab noted that Fed rate hikes are now being priced in rather than cuts — the opposite of what Warsh wants — but that it will be very difficult for him to argue for lower rates when inflation has reaccelerated. Ed Yardeni added that the macroeconomic backdrop no longer supports an easing bias, let alone a rate cut. The 20-year and 30-year US Treasury yields, both above 5 percent, are applying sustained upward pressure on mortgage rates, corporate borrowing costs, and the valuation multiples of growth stocks — creating a headwind that affects the entire equity market even as AI-driven technology stocks continue to outperform.
Nvidia Shares Down 1.4 Percent Monday — Earnings Wednesday Is the Week's Defining Moment
In the context of a broad risk-off session, Nvidia Corporation's 1.4 percent decline on Monday, May 19, was a relatively modest move for a stock that has been one of the most volatile large-cap names in the market through 2026. The decline brought Nvidia's share price to approximately $222 — still up more than 11 percent for the month and approximately 19 percent year to date. The stock has climbed roughly 20 percent in the past month alone, driven by the US government's clearance of H200 chip exports to China during the Trump-Xi summit, continued strong demand signals from AI hyperscalers, and anticipation of what is expected to be a blockbuster earnings report on Wednesday, May 20.
Wall Street consensus expectations for Nvidia's fiscal first quarter 2027 results are, by any historical standard, extraordinary. Analysts expect revenue of approximately $78.8 to $79 billion — representing year-on-year growth of approximately 77 to 78 percent. Earnings per share estimates centre on approximately $1.76 to $1.77 on an adjusted basis. The data centre segment, which houses Nvidia's AI chip revenues from hyperscalers and enterprise customers, is expected to account for the overwhelming majority of total revenues. Management guidance for the second quarter of fiscal 2027 is expected to show further acceleration — with Wall Street modelling approximately $86.6 billion in revenue, representing growth of approximately 85 percent year-on-year — a number that, if confirmed or beaten, would represent a continued acceleration of what is already one of the fastest growth trajectories of any company at Nvidia's scale in stock market history.
Options markets are pricing an implied move of approximately 8 percent in either direction following the earnings release — consistent with a large-scale event that could significantly move not just Nvidia's stock but the broader technology sector and, through it, the S&P 500 and Nasdaq indices. Wedbush analyst Matt Bryson noted that the company is fully expected to exceed estimates and guide above the Street given continued positive data points, healthy AI infrastructure spending, and superior supply chain positioning. The real question, Bryson wrote, is whether this will finally produce a more positive stock reaction after a series of relatively muted post-earnings moves following solid quarterly prints. One Kiplinger analyst warned that to say Nvidia is priced for perfection is an understatement — a sentiment that captures the core tension facing any investor approaching Wednesday's results: the fundamentals are extraordinary, the valuation reflects those fundamentals, and the margin for negative surprise is therefore very thin.
NextEra-Dominion Mega-Deal: The $67 Billion Signal the Market Is Watching Too
Amidst the noise of oil surges, Iran escalations, and Fed rate hike fears, Monday, May 19 also brought a major corporate announcement with significant long-term implications for global markets, energy policy, and the AI infrastructure story. NextEra Energy announced it will acquire Dominion Energy in an all-stock deal valued at approximately $67 billion — the largest utility merger in years and a transaction that would create the largest regulated electric utility in the world. The combined company would serve approximately 10 million utility customers across Florida, Virginia, North Carolina, and South Carolina. NextEra shareholders would own 74.5 percent and Dominion shareholders 25.5 percent. The deal is expected to close in mid-to-late 2027.
The strategic rationale for the transaction is directly tied to the AI boom and the extraordinary surge in electricity demand it is generating. Technology companies are racing to build data centres across the United States to support the computational requirements of large AI models, and those data centres require enormous and rapidly growing quantities of electricity. Microsoft has stated plans to invest $190 billion in calendar year 2026 in AI infrastructure. Amazon anticipates investing approximately $200 billion. Alphabet is planning to significantly increase capital expenditures through 2027. All of that spending translates directly into electricity demand — demand that utility companies like NextEra and Dominion are uniquely positioned to supply. The NextEra-Dominion merger is, in its deepest strategic logic, a bet that the AI data centre buildout will sustain electricity demand growth at a pace that makes the scale and geographic reach of the combined utility enterprise one of the most valuable assets in the American energy economy for decades to come.