MARKET INSIGHTS

Weekly market commentary

Beyond the AI bubble debate

BlackRock Bottom Line: 2026 Midyear outlook

Wei Li, Global Chief Investment Strategist, BlackRock Investment Institute

We believe we’re in a world of scarcity. Strengthening mega forces are putting increasing pressure on supply-side constraints—labor, energy, infrastructure and capital. That in turn is shaping growth, inflation and market pricing.

AI offers the promise of a permanent growth breakout through accelerating innovation, but the investment needed to build that future is reinforcing scarcity.

That backdrop shapes the three investment themes we're focused on in our 2026 Midyear Outlook.

First, AI scarcity.

The AI buildout is accelerating and we’re focused on opportunities where bottlenecks are appearing: power, grids, chips and data centers. We see physical AI, including robotics and autonomous manufacturing, as the next frontier.

Second, durable income.

Higher yields have made income attractive again, but where that income comes from matters. We favor short-duration maturities, particularly euro area government bonds, along with public and private credit backed by resilient cash flows.

Third, beyond labels.

Traditional asset-class buckets are becoming less useful – and infrastructure highlights this. We think investors should start with the themes and risks they want exposure to—and then choose the best way to access them.

The bottom line: AI may reshape the long-term growth outlook, but the route to such abundance runs through scarcity. We think investors should regularly reassess their exposures and get more granular with views as this economic transformation evolves.

Disclosures

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Reconciling AI earnings and valuations

The debate over whether AI exuberance is overdone is less about today's valuations than whether future earnings can remain at extraordinary levels.

Market backdrop

The S&P 500 rose 2% last week and capped its strongest quarter in six years as markets increasingly price the possibility of an AI-driven growth breakout.

Week ahead

We eye minutes from the Fed’s June policy meeting for signs that policymakers struck a less hawkish tone than markets inferred from the June dot plot.

Are we in an AI bubble? We think the answer depends on whether AI can turn today's scarcity into tomorrow's abundance. Markets are increasingly pricing that outcome, expecting AI to lift productivity and growth enough to sustain today's extraordinary earnings. Whether those earnings can endure – not where valuations sit relative to history – is key. Still-elevated margins suggest they can. We remain overweight U.S. equities, favoring the scarce inputs every AI system requires.

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Parting ways?
Shiller CAPE ratio and S&P 500 forward earnings ratio, 1985-26

This chart shows that higher equity prices have been accompanied by stronger earnings expectations. The Shiller P/E looks stretched by historical standards, but the 12-month forward P/E has remained closer to its long-run average.

The figure shown relates to past performance. Past performance is not a reliable indicator of current or future results. Source: BlackRock Investment Institute with data from LSEG Datastream, July 2026. Note: Shiller P/E is based on the ten-year average of inflation-adjusted earnings. The 12-month forward P/E is based on future 12-month earnings estimates. Historical averages: 1900–2026 for Shiller CAPE and 1985–2026 for the S&P 12-month forward P/E.

U.S. equities are enjoying an extraordinary earnings run. S&P 500 earnings are expected to grow 23% year on year in Q2, marking a seventh-consecutive quarter of double-digit growth. The Shiller price-to-earnings (P/E) ratio has climbed to 40, back to levels last seen during the dot-com bubble. Yet the 12-month forward P/E ratio offers a more balanced perspective. At around 21, valuations look less stretched because earnings expectations have risen sharply with share prices. See the chart. Median external forecasts also point to U.S. growth of about 3.5% – roughly 1.7 times its historical trend – reinforcing market expectations that AI could drive a growth breakout. Whether today’s valuations prove justified comes down to whether the earnings momentum can be sustained.

One essential nuance? Concluding AI has become a bubble is itself a significant call: it assumes the technology will not generate a lasting breakout in productivity and growth. Previous technological revolutions did not deliver a lasting breakout in productivity and growth, but AI could prove different by creating new, durable sources of revenue. The evidence so far has been supportive. Incremental margins remain above operating margins across most AI value-chain baskets, suggesting AI-related revenues are still translating into unusually strong profits. That reinforces our view that the investment cycle has further to run and supports our overweight to U.S. equities. While identifying the ultimate AI winners is difficult, we believe many will be found in the U.S. given its leadership in chips, frontier AI models and deep capital markets.

An active approach to AI scarcity

Within that, we prefer expressing the AI theme through scarcity. We do not need to know which AI model or application ultimately wins to know that every AI system depends on chips, memory, power and data center infrastructure. Companies supplying these scarce inputs benefit from sustained capital investment and, in many cases, long order books that provide greater visibility into future earnings. That makes scarcity one way to navigate uncertainty around earnings durability, and our highest-conviction AI investment idea.

The AI opportunity, however, extends well beyond today's bottlenecks. As the buildout shifts toward physical AI, opportunities are emerging in robotics, sensors and industrial automation, making active security selection increasingly important. China has advantages across parts of that value chain, including manufacturing and batteries. Yet manufacturing strength alone does not guarantee attractive equity returns, reinforcing our preference for active investing rather than broad regional calls. We also see opportunities beyond today's mega caps. Select small-cap companies, emerging market infrastructure providers and industrial firms could offer attractive exposure to the scarce inputs powering the next phase of AI.

Our bottom line

We focus on companies best positioned to deliver a durable earnings breakout, expressing our AI conviction through scarcity while relying on an active approach to identify opportunities. We’re overweight U.S. equities on the AI theme.

Market backdrop

The S&P 500 added 2% last week and capped off its strongest quarterly gain in six years. Semiconductors fell sharply – a prime example of the tension between our scarcity and abundance theme. The Japanese yen slid to a 40-year low against the dollar, though we don’t see these moves as the prelude to another bout of cross-asset volatility for now. U.S. 10-year Treasury yields climbed 10 basis points to 4.48% on concerns of potential interest rate hikes ahead.

We eye the minutes from the Federal Reserve's June policy meeting for insight into the debate behind the decision to hold rates steady despite still-sticky inflation and a resilient labor market. What’s key is whether the discussion supports our view that markets took the June dot plot's hawkish signals too literally or instead points to a more meaningful shift in the Fed's policy approach.

Week ahead

The chart shows that brent crude is the best-performing asset year-to-date, while bitcoin is the worst.

Past performance is not a reliable indicator of current or future results. Indexes are unmanaged and do not account for fees. It is not possible to invest directly in an index. Sources: BlackRock Investment Institute, with data from LSEG Datastream as of July 2, 2026. Notes: The two ends of the bars show the lowest and highest res at any point year to date, and the dots represent current year-to-date res. Emerging market (EM), high yield and global corporate investment grade (IG) res are denominated in U.S. dollars, and the rest in local currencies. Indexes or prices used are: spot Brent crude, ICE U.S. Dollar Index (DXY), spot gold, spot bitcoin, MSCI Emerging Markets Index, MSCI Europe Index, LSEG Datastream 10-year benchmark government bond index (U.S., Germany and Italy), Bloomberg Global High Yield Index, J.P. Morgan EMBI Index, Bloomberg Global Corporate Index and MSCI USA Index.

July 6

S&P Global PMI final

July 7

U.S. trade balance

July 8

Fed June meeting minutes

July 9

China PPI and CPI

Read our past weekly market commentaries here.

Intersecting mega forces

Since we launched our mega forces framework it has become clearer how their intersection shapes almost all our investment views and opens up alpha opportunities. They cut across asset class labels, spurring a rethink of portfolio construction. Investors need to be deliberate about the economic or thematic exposures they own, the vehicles they use to implement them and their investment horizons.

The chart shows BlackRock's five mega forces framework and how their intersection shapes investment views and opens up investment opportunities.

From drivers to portfolio expressions

Our highest conviction views, July 2026

Driver What we think Portfolio expression
Growth and AI scarcity The AI buildout is speeding up, making bottlenecks binding. Overweight U.S. equities; focus on AI bottleneck opportunities: power, chips and data centers.
Duration and diversification Long bonds carry high rate sensitivity and are less reliable diversifiers. Prefer short- and medium-term government bonds over long bonds for income.
Credit spreads and liquidity Selectivity is crucial amid tight spreads and uneven fundamentals. Credit with clear cash flows, lender protections and recovery value; higher-rated high yield.
Inflation and scarcity Scarcity, secure supply and power demand carry inflation risks. Infrastructure, energy bottlenecks, EM local debt and real-asset-linked exposures.
Alpha opportunity Macro outcomes matter again in the new regime. Macro hedge funds, venture capital, market-neutral strategies, and selected private credit and non-U.S. alpha.

Note: Views are from a U.S. dollar perspective, July 2026. This material represents an assessment of the market environment at a specific time and is not intended to be a forecast of future events or a guarantee of future results. This information should not be relied upon by the reader as research or investment advice regarding any particular funds, strategy or security.

Asset class implications

Six- to 12-month tactical positioning, July 2026

This shows the implementation of our key investment views from the previous page through an asset class lens.

Legend Granular

Past performance is not a reliable indicator of current or future results. It is not possible to invest directly in an index. Note: Views are from a U.S. dollar perspective. This material represents an assessment of the market environment at a specific time and is not intended to be a forecast or guarantee of future results. This information should not be relied upon as investment advice regarding any particular fund, strategy or security.

Euro-denominated tactical granular views

Six to 12-month tactical views on selected assets vs. broad global asset classes by level of conviction, July 2026

Legend Granular

We have lengthened our tactical investment horizon back to six to 12 months. The table below reflects this and, importantly, leaves aside the opportunity for alpha, or the potential to generate above-benchmark returns – especially at a time of heightened volatility.

Past performance is not a reliable indicator of current or future results. It is not possible to invest directly in an index. Note: Views are from a euro perspective, July 2026. This material represents an assessment of the market environment at a specific time and is not intended to be a forecast or guarantee of future results. This information should not be relied upon as investment advice regarding any particular fund, strategy or security.

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Meet the authors
Jean Boivin
Head – BlackRock Investment Institute
Wei Li
Global Chief Investment Strategist – BlackRock Investment Institute
Vivek Paul
Global Head of Portfolio Research – BlackRock Investment Institute
Beata Harasim
Senior Investment Strategist – BlackRock Investment Institute