Brent crude rises on Iran-U.S. military exchange as Hormuz talks collapse

Brent crude prices rose after Iranian forces and U.S. troops exchanged fire overnight, with U.S. and Saudi strikes on Tehran-backed militias in Iraq compounding the pressure on the energy tape. Iran's rejection of a proposal to share Strait of Hormuz oversight removes a diplomatic pressure valve, and sources say Tehran is set to receive up to 400 Chinese-made shoulder-fired air-defense missile launchers within weeks. The Senate added a legislative dimension with an 86-12 vote to advance a bill that would authorize President Trump to impose tariffs on major buyers of Russian and Iranian energy.

The Hormuz factor and the setup for crude

Tehran's flat rejection of shared Strait of Hormuz control is the harder signal for energy traders to price. Iran's posture combined with an incoming Chinese weapons package leaves the supply-disruption risk premium with no near-term catalyst to unwind. The Senate's 86-12 margin on the tariff bill reflects broad bipartisan appetite for economic pressure on Moscow and Tehran, layering policy risk onto an already elevated geopolitical setup.

SK Hynix misses, commits $31 billion in capex

SK Hynix shares fell after the chipmaker's results came in below consensus. The company announced a capital expenditure commitment of at least $31 billion for the year, a figure that raises the stakes on any demand shortfall in the semiconductor cycle. South Korean officials called an emergency meeting for Wednesday evening to address a broader decline in domestic equity markets, treating the miss as more than an isolated print.

Hedge funds face higher collateral as AI stocks sell off

Wall Street banks raised collateral requirements for hedge funds during a sell-off in AI-related stocks. The tightening is mechanical: prime brokers responding to drawdowns, not a policy change. That dynamic can accelerate positioning unwinds in a sector already under pressure.

What to watch

Moonshot closed a $3.5 billion funding round that pushed its valuation to $35 billion. The U.S. government plans to terminate a subsidy program for Medicare drug plans. The Senate confirmed Jay Clayton as Director of National Intelligence, and Anthony Fauci testified before the Senate Homeland Security and Governmental Affairs Committee on COVID-19 origins. President Trump urged Senate leadership to pass a budget resolution before the August recess to advance the Save America Act. The next confirmable development for the energy tape: any formal move by Tehran or Washington on Hormuz, or a floor vote on the tariff legislation.