INSIGHT WEEKLY: June 28, 2026
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🌐 Markets Overview
🌐 Markets Overview: Fracture in US markets
The Dow and the small-cap Russell 2000 pushed higher while the Nasdaq took a heavy hit. So some rotation. But also profit taking and some evaporation of demand as buyers held back. Investors have again been questioning whether valuations had run ahead of what even strong fundamentals could justify.
Value stocks outpaced growth by a wide margin and the equal-weighted S&P 500 beat its cap-weighted version, both signs that the market's narrow leadership is being tested.
The trigger was not bad news but good news that failed to satisfy. Micron delivered a blockbuster quarter with guidance well ahead of consensus, the kind of print that in an earlier phase of the cycle would have lifted the entire chip sector. Instead it became a reason to take profits, with a rippling outward into memory, semis and the infrastructure names that have led the rally all year.
Europe was quiet at the index level but masked real dispersion beneath. The FTSE 100 was the standout, helped by its heavy weighting in energy, financials and defensives, precisely the profile investors want when the growth trade wobbles. The continental indices with more cyclical and industrial exposure fared worse, and Germany in particular continued to struggle under soft domestic activity. Friday's global tech sell-off caught European semiconductor-adjacent names alongside their US peers.
Asia bore the sharpest version of the same story. Japan and the broader Asian complex had rallied early in the week on upbeat chip-sector sentiment before the reversal hit, while Korea's market suffered an outright rout as leveraged retail positions in the memory names unwound violently. The throughline everywhere was the AI trade losing its grip, with the damage scaling to however concentrated each market had become in it.
Beneath equities, the macro backdrop turned more supportive even as stocks fell. Treasury yields eased as oil retreated toward pre-war levels on the Iran framework ( there have been an exchange of strikes over the weekend), and the 10-year dropped below a threshold it had not seen in over a month. Falling energy costs and in-line inflation gave bonds room to rally, a reminder that the week's equity weakness was a story about crowded positioning in one theme, not a broad deterioration in conditions.
The Nikkei 225 has been the best performing market this year, but there was a retracement this week.
🤖AI Stocks
This was the week the AI trade was forced to confront its own success. The sell-off was indiscriminate at the surface but revealing underneath, separating the names with genuine demand visibility from those carried largely by momentum.
Micron is the tell. The company reported one of the strongest quarters in the sector's history, with data-centre revenue multiplying and management locking in multi-year customer agreements worth tens of billions in committed deposits, the closest thing to revenue visibility the memory industry has ever offered. Yet the stock barely moved on the week. When fundamentals that good produce a flat tape, the constraint is no longer the business but the price already paid for it. That dynamic set the tone for everything around it.
The richest valuations took the hardest punishment, which is how these episodes usually resolve. ARM was the epicentre, having entered the week trading at multiples that left no room for hesitation, and a New Street downgrade gave holders the permission they were looking for to lock in an extraordinary year-to-date run. Qualcomm and the high-multiple infrastructure names like Vertiv fell hard for the same reason. The selling was a function of how far each had travelled, not any change in thesis.
The divergences carried information. Snowflake's gain against a falling tape stands out, a sign that software with its own demand story can decouple when the hardware-led trade rolls over. Alphabet's steep drop sat oddly against a year of strong gains and looked more like profit-taking in a crowded mega-cap than anything company-specific. Alibaba and the China names extended their grind lower, where the issue remains sentiment and policy overhang rather than the AI cycle itself.
What the week exposed is a market that has stopped paying for the AI theme in the abstract and started discriminating by who can actually convert it into contracted revenue. Micron's customer agreements are the template the rest of the stack will increasingly be measured against. The infrastructure and power names that ran furthest on expectation, rather than booked demand, are the ones now most exposed to the reassessment.
Macro Watch: This Week’s Economic Developments
🇺🇸 United States. May inflation hit 4.1%, the hottest in three years and a third straight monthly rise, as high oil prices work through. Core inflation at 2.9% is sticky enough to deny the Fed any cover to cut interest rates, which leaves an awkward truth: the only route to lower rates now runs through an economy weak enough to force the Fed's hand, hardly what equities had been rallying on. That tension pulled the rug from under the AI names this week.
🇪🇺 Eurozone Inflation rose to 3.2%, and the European Central Bank finally lifted its interest rate to 2.25%, a first increase since 2023. But it fights from weaker ground than the Fed: growth is barely there, the bloc shrank last quarter, and Germany's factories remain a dead weight. Lagarde can lean against prices, but not hard, without snapping an economy with no momentum to spare.
🇬🇧 United Kingdom. Keir Starmer resigned as prime minister on June 22, with Andy Burnham the favourite to succeed him. Markets can price an interest rate; they cannot price a leadership vacuum. Rates at 3.75% should favour sterling, yet the upheaval reopens questions about the public finances at the worst moment, and investors already want paying more to hold British risk.
🇯🇵 Japan. The yen slid near 162 per dollar, its weakest since 1986, even as inflation crept to 1.5%. The Bank of Japan has edged interest rates to 1% and some of its board want to push toward 2%, but the currency falls anyway because traders fixate on the gap with a higher-yielding America. A cheap yen helps exporters while raising the cost of all Japan imports, the very inflation it is trying to contain.
🇨🇳 China's recovery looks more promised than delivered. Shoppers stayed home in May, retail sales falling from a year earlier, awkward for an economy Beijing insists is turning toward the consumer. Inflation is barely above zero and money keeps draining from property. Support comes in measured doses, not the decisive push markets await, and that gap keeps investors wary even with shares cheap.
🌐 Artificial Intelligence and Tech
Anthropic's consumer surge - Credit-card data covering millions of US consumers shows Claude's paying customers climbing steadily through the year, and the education platform DataCamp now ranks Claude above even the generic term "AI" as its most searched subject, with self-directed learners favouring Claude courses over ChatGPT by three to one. ChatGPT still dwarfs it on absolute users, but the direction of travel matters more than the gap.
Claude moves into Slack - Anthropic shifted Claude out of the private chat box and into shared team channels under a beta called Claude Tag. Tagged like a colleague, the agent runs multi-step tasks in the open thread and tracks them asynchronously, drawing on connected corporate tools without constant prompting.
OpenAI's first chip - OpenAI unveiled Jalapeño, a custom processor designed with Broadcom and built to run models rather than train them. Keeping ChatGPT responsive cost billions last year and will climb as weekly users near a billion, while Nvidia collects a large margin on every accelerator. Owning the silicon strips out that premium and tunes the chip to OpenAI's own models, the vertical move that served Apple, though Google, Amazon and Meta have shipped in-house chips for years.
Washington holds GPT-5.6 - The White House has reportedly asked OpenAI to keep its newest model from a general launch, releasing it instead to vetted partners with the government approving access customer by customer. The administration that began hands-off is now steering frontier releases directly, following an executive order asking AI firms to submit models for evaluation first. The worry is cyber capability, a model able to find and exploit software flaws faster than any human defender.
Anthropic's Fable 5 thaw - The same logic frames a reported softening on Anthropic's Fable 5. After Washington restricted the firm's most powerful cyber-focused models earlier in the month, prompting Anthropic to pull them, the administration is now said to be close to allowing access for a set of pre-approved organisations. OpenAI is being pushed toward exactly the gated approach Anthropic adopted voluntarily, and was criticised for. Raw capability is no longer the only axis of competition; the terms on which a model reaches the public are becoming part of the product itself.
Crypto highlights
Crypto stayed firmly on the back foot, and the more useful question is why it has stopped behaving like the high-beta risk asset many still assume it to be. Through this stretch the link to equities has been loose, which means the selling has its own internal logic rather than simply tracking the Nasdaq's bad week.
The relative moves within the top names fit a familiar risk-off template, with the smaller, higher-beta tokens giving back more than Bitcoin as liquidity thins.
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