Today's Markets 5-Minute Digest (2026.08.18)

A deepening global bond sell-off dominated the tape, with the 30-year U.S. Treasury yield hitting its highest level since 2007 and equity-index futures — especially tech — pointing lower. US-Iran tensions added pressure by lifting oil, while earnings from Klarna and Home Depot and fresh AI capex headlines rounded out the day.

1. 30-year Treasury yield tops 5.33%, a 19-year high, as global bond rout deepens

Screenshot of 30-year Treasury yield tops 5.33%, new 19-year high on infla
Source: 30-year Treasury yield tops 5.33%, new 19-year high on infla (click for the original)

The 30-year U.S. Treasury yield climbed above 5.33%, described as a new 19-year high and its highest level since 2007, amid a broad global bond sell-off. CNBC linked the move to inflation and government-spending concerns, while other outlets tied rising global yields to the US-Iran stalemate.

Related coverage noted U.S. debt is set to reach $40 trillion months earlier than expected. Strategas strategists told MarketWatch that stocks have so far shrugged off higher yields, arguing a much worse bond selloff would be needed before equities feel real pain.

Watch the pace of the yield move and any level that markets treat as 'competitive' with equities; the debt-supply and spending backdrop are the variables cited, not a set trigger point.

2. Tech futures sink — Nvidia, Micron, Sandisk fall as yields jump

Screenshot of Stock Market Today: Tech Futures Sink As Treasury Yields Jum
Source: Stock Market Today: Tech Futures Sink As Treasury Yields Jum (click for the original)

Tech-heavy futures fell as Treasury yields rose, with live coverage citing declines in Nvidia, Micron and Sandisk. Google News aggregation described a deepening global bond rout dragging Nasdaq futures lower, with US-Iran tensions cited among the drivers.

Against that backdrop, a Bank of America survey said fund managers have rarely been this bullish on stocks, and reports noted 11 S&P 500 stocks hit record highs. Separately, central bank economists warned to CNBC that the AI-driven rally could presage a market correction.

The tension to watch is stretched bullish positioning and record highs against a rising-yield, correction-warning backdrop; these are described conditions, not a directional forecast.

3. US-Iran tensions lift oil to near three-week high

Screenshot of Stock market today: Dow, S&P 500, Nasdaq futures extend loss
Source: Stock market today: Dow, S&P 500, Nasdaq futures extend loss (click for the original)

Futures extended losses amid US-Iran tensions, with reporting on a Trump threat toward Oman framed by a former ambassador as an attempt to get attention as a ceasefire deadline approached. Reuters reported oil prices at a near three-week high as US-Iran peace hopes faded.

Multiple outlets tied the surge in global government bond yields to the US-Iran stalemate, and options data cited by Susquehanna pointed to positioning in gold prices.

The Strait of Hormuz and any ceasefire extension are the key variables for oil and safe-haven flows; direction depends on unresolved diplomacy, not a settled outcome.

4. Earnings: Klarna plunges on trimmed volume outlook, Home Depot reaffirms guidance

Screenshot of Earnings live updates: Klarna stock plunges on trimmed guida
Source: Earnings live updates: Klarna stock plunges on trimmed guida (click for the original)

Klarna shares fell after the company posted Q2 profit and revenue growth but trimmed its volume outlook. Home Depot reaffirmed its guidance, citing 'frozen housing market conditions,' and its stock gained in early coverage (HD quoted around $337.88 in Yahoo's trending tickers).

In AI infrastructure, coverage highlighted strong AI-related orders at Cisco Systems, an OpenAI data center in Ohio with an Nvidia guarantee, and Anthropic telling investors its annualized revenue run rate reached $65 billion in July. CNBC also reported Nvidia's competitive edge is shifting from chips toward capital.

Guidance revisions and management commentary — Klarna's outlook cut versus Home Depot's reaffirmation — are the concrete data points; the AI capex headlines describe order and revenue trends, not investment advice.

Disclaimer: This content is for informational purposes only and is not investment advice. Investment decisions are your own responsibility.
This digest summarizes the past 24 hours of news from public RSS feeds. See the linked sources for details.

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