Oil has driven markets lower for three straight sessions, with Brent now above 101 dollars as direct US-Iran strikes escalate and Treasury bond buying fails to calm the reaction.

The market is pricing both a supply shock and a policy response to it.

The dominant driver has been a widening exchange of strikes between the US and Iran.

Brent climbed toward 98 dollars Monday after the largest exchange of tanker attacks yet, then held near 98 Tuesday on reports of strikes on Middle Eastern energy infrastructure.

The US military targeted Kharg Island and the port of Jask as part of a campaign to pressure Iran economically.

Brent broke above 101 dollars Wednesday as tensions widened further.

A top Iranian official said Iran would expand counter-strikes if the US continues attacking its infrastructure.

Rising energy costs have pushed yields and rate expectations higher all week.

Short-term Treasury yields rose Tuesday, and money markets priced over 50 percent odds of a Fed hike this month.

Treasury Secretary Bessent broadened a buyback program for older government debt, saying it was meant to calm a fever in the bond market.

The Treasury then announced plans to buy up to 6 billion dollars in longer-dated paper.

• Ten year yields touched their highest level since 2023
• The S&P 500 fell for a third straight day
• The dollar stayed pinned near a seven month low

The reaction suggests investors had expected a larger intervention than they got.

Bessent also challenged traders to test his resolve on the yen, saying he would act with the benefit of inside information.

Away from oil and yields, AI investment kept advancing on its own track.

South Korean memory-chip stocks outperformed Monday as OpenAI's GPT-6 release renewed enthusiasm for the sector.

Qualcomm signed Amazon as a data center chip customer and investor, a notable win in its push into AI infrastructure spending.

Apple also unveiled a foldable smartphone, though it barely registered against the macro backdrop dominating the week.

Geopolitics → Oil → Inflation → Federal Reserve → Equity leadership

• Oil sits above 101 dollars with active military escalation behind it
• Ten year yields are at their highest since 2023
• More than half the market expects a Fed hike this month
• A Treasury intervention meant to calm bonds has not yet worked
• AI dealmaking continues to advance independent of the macro stress

The bond market is now signaling it wants more than words from policymakers. Oil is still the variable nobody controls.

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