Why Did the Iran War Restart? | Macro Mondays, July 14, 2026

Trump declared the ceasefire finished over the weekend and launched heavy attacks on the IRGC, with a message sent roughly ninety minutes before recording stating the US wants to control the Strait of Hormuz and no return to negotiations in sight. The ceasefire collapse is attributed to the IRGC disrupting the memorandum of understanding following a US miscalculation, with the IRGC viewing strait control as both a revenue source and a guarantee of their future position. The Omani transit route has been closed following IRGC attacks, and the current oil flow deficit from the region is estimated at four million barrels per day.

Despite the renewed escalation, oil has not exceeded Thursday's peak and the supply math looks less severe than in March or April. A large volume of oil departed the region during the first two weeks of the ceasefire and will reach Asia and elsewhere over the next four weeks, providing a near-term buffer. Both the US and China are drawing on strategic reserves to cover the four million barrel gap, giving a buffer of roughly three to five months. Oil is seen as unlikely to approach 100 dollars again, with equilibrium around 80 dollars, and the argument is made that if the strait closes completely, China can simply stop buying oil as a countermeasure, which limits IRGC leverage.

Refined products such as jet fuel and diesel are identified as a more serious problem than crude oil itself, because refiners cannot be relocated the way crude flows can be rerouted. Crack spreads in the US are at record highs as refiners shift marginal capacity toward jet fuel, and refinery capacity constraints prevent the full pass-through of oil price disinflation to consumers.

The upcoming US inflation report is forecast at 3.7 percent headline and 2.7 percent core, against a consensus of around 3.9 percent and a prior print of 4.2 percent, which would represent a significant market surprise and is expected to massively reprice the front end of the US yield curve. The FOMC minutes released the prior week were characterized as the most hawkish Federal Reserve message since the 2022 hiking cycle, with many members expressing forward-looking concern about inflation rather than concern grounded in current data. The Fed shift is framed as a forecasting error rather than a policy error, and the restart of the Iran war is seen as giving Fed chair Kevin Warsh a convenient excuse to delay rate cuts by pointing to disturbances in oil and energy markets.

Hyperscalers spending all of their free cash flows on semiconductors is described as the defining story of 2026 and likely 2027. Underlying spot prices for memory semiconductors are up approximately 20 percent since recent updates from Micron and Hynix, and a smaller Taiwanese player quoted expectations of 30 to 40 percent price hikes from major players in the third quarter. Hynix has communicated a solid order book through 2031, and the semiconductor cycle is predicted to peak in late 2027 or early 2028, not currently. Michael Burry's mean reversion arguments for the memory trade are dismissed as lazy analysis. The portfolio described holds approximately 9 to 10 percent in memory stocks and over 25 percent in semiconductors overall, with two weeks of losses attributed to momentum trade weakness caused by the Federal Reserve forecasting error in June driving higher dollar yields and rate hike fears.

South Korea export data for the first ten days of July looks slightly weaker than June, but June is described as likely the most significant month in financial history for semiconductor-related exports based on TSMC results. July softness is partly attributed to the global vacation season, and the data is not yet sufficient to declare a rollover. The warning is clear that when the South Korea semiconductor export chart does roll over, the memory trade will be finished.

On the US-China relationship, the trade dynamic is described as frosty despite the Beijing ceasefire meeting, with data through June 1 showing no reversal in the three to four weeks following that meeting. China holds significant leverage over US oil prices ahead of midterms by choosing to buy large volumes of oil. On metals, the decoupling trade is seen as unlikely to work while the dollar remains strong and energy costs are high, with the upcoming inflation report identified as a potential entry point and Fed acknowledgment of softer inflation data considered a prerequisite for the short dollar trade to function.