Thematic Flow Report: Investors Sell AI Hardware—and Buy the Grid Beneath It

Strong AI earnings are colliding with semiconductor-fund redemptions, while investors add to software, cybersecurity, electrification, pipelines, gold and cash-flow strategies. The message from flows is not “AI is over.” It is that capital is becoming more selective about where it pays for the theme.

The weekly signal

This week’s headlines reinforced several durable investment narratives: AI infrastructure demand remains exceptionally strong, data-center power needs are becoming an economic and political issue, geopolitical risk is keeping energy security in focus, and higher global yields are raising the hurdle rate for long-duration assets.

ETF flows, however, did not simply chase those stories. Investors sold some of the most obvious AI and defense vehicles even as the fundamental case strengthened. They bought other beneficiaries—software and cybersecurity, the electric grid, midstream energy and physical gold—often into falling prices.

That distinction matters. The strongest read-through from the September 3 data is a broadening of thematic exposure away from crowded first-order trades and toward cash flows, bottlenecks and portfolio hedges.

Flow dashboard

Source: ETFThemes.com thematic-flow dataset for September 3, 2026. Category returns are equal-weighted averages; category flows aggregate funds with reported data. Figures are rounded. Duplicate fund listings were removed from the analysis.

AI: the fundamentals are stronger than the fund flows

The week’s corporate news offered fresh evidence that AI spending is still expanding. Broadcom reported fiscal third-quarter revenue of $29.6 billion, up 86% from a year earlier, while AI semiconductor revenue reached $16.7 billion, up 221%. The company expects AI semiconductor revenue of roughly $21.7 billion in the fourth quarter. Hewlett Packard Enterprise reported record quarterly revenue of $12.2 billion, up 34%, citing strong demand and a record backlog. Snowflake, meanwhile, lifted its fiscal-year product-revenue outlook as AI products helped accelerate consumption. (Broadcom, HPE, Snowflake)

Yet semiconductor ETFs lost an estimated $469 million over the week and $6.13 billion over the past month. SMH alone shed $662 million for the week and $2.92 billion for the month; SOXX lost $3.68 billion over the month. AIQ, a broader artificial-intelligence fund, posted outflows of $185 million for the week and $942 million for the month.

This is the report’s most important negative divergence. It does not look like a rejection of AI demand. Broadcom’s outlook and HPE’s order book argue the opposite. Instead, the outflows point to valuation discipline, crowded positioning and concern that physical supply, deployment capacity and power availability may govern the pace of revenue conversion.

The flow tape also shows discrimination within AI. BAI attracted $127 million for the week and $226 million for the month even as AIQ lost assets. Software ETFs took in $365 million during a week when the group fell about 6%. Cybersecurity fund CIBR gathered $82 million for the week and $563 million for the month, while IGV added $131 million during the week despite a monthly outflow.

For thematic investors, the implication is that the market is beginning to separate AI exposure into three layers: expensive hardware capacity, application and data monetization, and security. Current flows favor selective exposure farther up the stack over a blanket allocation to chip beta.

The grid becomes an AI trade

Electrification was one of the clearest positive divergences in the dataset. The group fell 3.1% for the week and 3.0% for the month, yet attracted $101 million and $311 million over those periods. GRID accounted for $89 million of the weekly inflow and $278 million over the month; its year-to-date inflow stood near $5.79 billion.

That buying aligns with a developing constraint in the headlines. AI server demand is surging, but hyperscalers face supply bottlenecks, local opposition and the practical difficulty of connecting enormous new loads. The U.S. Department of Energy says data centers could represent 11.8% of U.S. electricity use by the end of the decade in its central scenario, and it has identified grid capacity and long interconnection timelines as barriers to deployment. (DOE data-center resource hub, DOE on grid constraints)

Flows suggest investors increasingly view transmission, power management and grid equipment as picks-and-shovels exposure to AI—with potentially less sensitivity to which model or chip architecture wins.

But investors are not treating every power theme alike. Uranium and reactor ETFs fell 5.2% and lost $151 million for the week and $397 million for the month. Clean-energy funds also lost nearly $50 million for the week and $195 million for the month. The divergence says the market currently prefers near-term grid spending to longer-duration generation projects carrying more financing, policy and execution risk.

Energy: buying toll roads, not chasing the spike

Energy prices and equities responded to renewed U.S.-Iran tension, risk around the Strait of Hormuz and reports of unusually tight gasoline inventories. Oil-services ETF OIH gained 5.2% for the week and 13.5% for the month; XOP rose 4.2% and 8.9%, respectively. Chevron’s plan to invest more than $7 billion over five years and more than double its Venezuelan joint-venture production reinforces the industry’s renewed supply focus. (Chevron)

Flows were more reserved. Legacy energy ETFs gathered only $43 million for the week and remained in a $103 million monthly outflow. OIH added $42 million for the week but was still down $96 million over the month.

Midstream told a different story. MLP funds attracted $161 million for the week, $539 million for the month and more than $2.0 billion year to date. That is a useful signal: investors appear more comfortable underwriting fee-based infrastructure and distributions than paying up for the full commodity-price sensitivity of producers and oilfield services.

The geopolitical narrative is therefore being expressed through two portfolios—short-term price exposure in energy equities, but more durable asset allocation into pipelines and midstream cash flows.

Gold wins the hedge; miners lose the vote

Gold offered another sharp internal divergence. GLD fell 4.7% for the week but absorbed $1.57 billion, bringing its one-month inflow to almost $6.96 billion. GDX, by contrast, declined 5.8% and lost $426 million for the week; SLV also saw weekly redemptions.

Investors are buying bullion on weakness while avoiding operating leverage. That preference is consistent with a backdrop of Iran risk, rising Japanese yields, a potentially less stable currency regime and uncertainty around the path of U.S. rates. It also marks a reversal inside GLD: the fund’s large recent inflows have not yet erased its approximately $1.95 billion year-to-date outflow.

For allocators, the signal is less a tactical call on the next move in gold than a statement about implementation. When the objective is portfolio insurance, flows favor the cleaner commodity exposure over miners’ labor, cost and jurisdiction risks.

Defense, reshoring and international growth: three incomplete signals

Defense: Renewed military activity and newly effective U.S. tariffs of up to 100% on certain foreign drones strengthen the strategic case for domestic defense technology and supply chains. Yet aerospace and defense ETFs fell 5.1% and lost $147 million for the week, led by a $149 million outflow from ITA. Monthly flows remained positive at $239 million, suggesting short-term profit-taking rather than a wholesale break in the thesis. (White House drone proclamation)

Infrastructure and housing: Infrastructure funds attracted $210 million for the week after losing $911 million over the month. PAVE added $93 million weekly but remained down $576 million monthly. That is a tentative positive divergence—early buyers are returning before prices have confirmed a turn. Housing is less ambiguous: ITB lost $192 million for the week, consistent with pressure from elevated long-term borrowing costs.

International growth: Better services activity in China, Japan, the euro area and the U.K. supports selective international exposure. Broad emerging-markets flows were constructive—EEM took in roughly $799 million over the month and gained 4.8%—but China internet remained an exception. KWEB lost $63 million for the week and $76 million for the month while falling nearly 10% over the month. The message is that improving services data has not yet overcome China-specific trade, policy and geopolitical risk.

What thematic ETF investors should watch next

1. Whether chip outflows stabilize after earnings. Continued redemptions alongside rising AI revenue would strengthen the case that valuation and positioning—not the earnings cycle—are driving the reset.
2. Whether software inflows broaden beyond cybersecurity. A sustained move into data, application and productivity funds would confirm a rotation from AI buildout toward monetization.
3. Whether grid inflows survive rate volatility. Electrification is attracting capital before price momentum turns; that makes it one of the week’s most consequential leading signals.
4. Whether energy buyers move beyond midstream. A persistent Hormuz risk premium could pull assets back into producers and services. Until then, MLPs remain the cleaner flow-confirmed expression.
5. Whether defense’s weekly outflow is temporary. Positive monthly flows and new domestic-content incentives support the long-run thesis, but this week’s tape warns against assuming headlines automatically produce fresh allocations.

The broader conclusion is straightforward: thematic capital is moving from stories toward implementation. Investors are still funding AI, energy security and strategic infrastructure, but they increasingly want bottlenecks, recurring revenue and cash distributions—not simply the most visible ticker attached to the headline.

Sources and methodology

• ETF flow, asset and performance data: ETFThemes.com thematic-flow dataset supplied for September 3, 2026. Returns and flows reflect the values in the supplied file; unavailable observations were excluded rather than treated as zero. Category figures aggregate the listed ETFs and may be influenced by large funds.
• Broadcom fiscal third-quarter 2026 results
• HPE investor relations and fiscal third-quarter 2026 materials
• Snowflake investor relations
• U.S. Department of Energy: Powering America’s AI Future
• U.S. Department of Energy: large loads and grid support
• Chevron: Venezuela expansion plan
• White House proclamation on unmanned-aircraft imports
• News-flow context: the September 3 headline digest supplied with this report, including reporting from Bloomberg, Reuters, CNBC, the Financial Times, Nikkei, CNN, Axios, The New York Times and The Information.

Disclaimer: This material is for informational purposes only and does not constitute investment advice, a recommendation or an offer to buy or sell any security. ETF holdings, exposures, prices and flows can change. Past performance does not guarantee future results.