Monday, August 24

The global equity pullback was concentrated in semiconductors and AI-linked technology, with the Nasdaq falling 0.76% while the Dow gained 0.26%. Market commentary increasingly described the AI trade as “currently broken,” reflecting concerns that data-center spending may slow and that hardware and cloud providers are offering more cautious guidance. Nvidia’s upcoming earnings therefore carry unusually broad significance: investors are testing whether recent AI capex and profit expectations remain credible, not merely whether the company can beat estimates.

The pressure was visible overseas. Samsung Electronics fell more than 8% after its record $79 billion shareholder-return plan disappointed investors seeking larger capital returns and clearer future buybacks. Alibaba also declined after launching a $10.2 billion share sale to fund AI investments. The synchronized selloff suggests active re-rating of the AI complex ahead of earnings and Jackson Hole, rather than a one-stock reaction.

Treasury Secretary Scott Bessent unveiled “Operation Economic Outcast,” which he called an “economic D-Day,” expanding U.S. secondary sanctions against entities and countries maintaining business ties with Iran. The measures represent a material tightening of economic pressure roughly six months into the Iran-related war and give Washington greater reach over indirect financial and trade links. Tehran has threatened retaliation, keeping the risk of further Middle East disruption embedded in the market outlook.

The immediate commodity response was notably restrained: WTI and Brent each fell about 2.35%, to roughly $85.01 and $92.17 per barrel, ending a six-session rally. The oil reversal helped long Treasury yields ease, but it does not erase the recent link between Middle East risk, inflation expectations, and long-end volatility. The sanctions therefore raise geopolitical tail risk without yet producing a fresh energy shock.

U.S.–Canada trade talks broke down, followed by the announcement of 50% U.S. tariffs on about $20 billion of Canadian goods. Canada is expected to retaliate with matching tariffs effective September 8, moving the dispute from negotiation risk toward a bilateral trade shock. The Canadian dollar weakened visibly, underscoring how quickly currency markets are pricing the threat to cross-border commerce and supply chains.

The timing is unfavorable for Canada: an earlier rebound in second-quarter growth was already clouded by the trade dispute, while weaker housing and elevated long-term yields add to North American macro headwinds. The new measures also complicate the broader dollar and inflation outlook, even as the immediate market reaction remained concentrated in the Canadian currency rather than a wider commodity selloff.

The 10-year Treasury yield fell more than three basis points to about 4.704%, while the 30-year yield declined more than four basis points to roughly 5.234%. That offered some relief after the 30-year yield reached 5.34%, its highest level in about 19 years. The move was aided in part by lower oil prices, but traders have not treated the improvement as a durable resolution of the long-end stress.

Treasury will double repurchases of longer-dated debt beginning in September, financing them with greater short-term issuance. The program initially pulled long yields lower but has not fully convinced markets, which are questioning whether it amounts to quasi-yield-curve control. With three of twelve recent FOMC voters favoring a hike and several officials still seeing a need for further tightening, Kevin Warsh’s Jackson Hole speech, alongside PCE and GDP data, could determine whether relief at the long end holds.