Inflation set the tone last week. Consumer and producer price reports both ran hot, testing the idea that expected AI growth can carry U.S. stocks through higher interest rates. Yet rates eased after the producer report, and a strong retail sales headline leaned heavily on gas prices. Beyond inflation and interest rates, a major AI infrastructure forecast pointed to spending that favors some suppliers over others, and gold’s pullback put the royalty business model under a sharper light.
Hot Inflation Tests the Market’s AI Growth Assumptions
Two inflation reports ran hot last week. The consumer price index (CPI), which measures the change in prices consumers pay for goods and services, sparked a sell-off when it was released on Wednesday, October 14 [1], [2]. The producer price index (PPI), which measures the change in selling prices received by domestic producers [3], came in much hotter than expected on Thursday, October 15 [4], [5], [6]. They arrived after a prior week in which global interest rates kept climbing. U.S. stocks mostly shrugged off those higher rates, while European markets did not. The prevailing explanation was that expected AI growth in the U.S. could offset higher rates, a cushion Europe doesn’t have [7].
What matters here is how much of the U.S. market’s resilience rests on that one assumption. If AI growth expectations come down while rates stay high, the cushion that has let U.S. stocks look past higher borrowing costs gets thinner [2]. Late in the week, Reuters reported that investors were tempering expectations for Anthropic’s IPO valuation over slowing revenue growth [8], the kind of headline that tests that assumption [5]. The open question is whether AI growth expectations can hold up while inflation keeps rates elevated.
AI Infrastructure Spending Is Surging, but Not Every Supplier Will Win
A Bank of America Global Research forecast projects AI data-center hardware spending of about $2.2 trillion a year by 2030 [9], [10]. In the same forecast, AI networking, the gear that connects AI chips to each other, reaches about $400 billion, and optical networking accounts for about $111 billion of that [9], [10]. That puts optics at roughly 5% of total AI hardware spending, a small part but one the much larger budget can’t go around [7]. These are forecasts, not purchase orders.
The detail that matters is where the money lands. Even in BofA’s forecast, optics is only roughly a quarter of AI networking dollars, which means most networking spending flows to other gear, such as the switches that route data between chips and the cables that connect them [7]. The designs themselves are changing as well. Newer approaches that place optics on or next to the switch chip shorten the electrical path and cut power [11], and NVIDIA and Cisco proposed a plug-in optical module with four times today’s bandwidth in about the same space [12], though those are design targets for now.
For investors, the question is not whether the network grows but who gets paid as it does. NVIDIA’s newer design keeps a separate, replaceable laser [11], so laser makers keep a role. Credo is promoting designs that use fewer, simpler lasers [13], which means the network can carry more data while buying fewer parts per connection. The better measure of a supplier is whether it earns more on each connection, not just whether it ships more parts.
Gold’s Pullback Reveals the Strengths and Risks of Royalty Companies
Gold futures closed above $5,300 an ounce in late January and settled at about $4,162 on October 2, a drop of more than 20% in eight months. On October 2, the VanEck Gold Miners ETF was about 25% below its 52-week high, and royalty companies Franco-Nevada and Wheaton Precious Metals were about 16% and 18% below theirs [5]. Royalty and streaming companies don’t run mines. A stream, for example, pays a miner a large sum upfront, then an agreed price for each ounce of metal delivered [14].
Recent disclosures show what that model demands. Wheaton committed $4.3 billion, payable at closing, to a new silver stream on BHP’s share of the Antamina mine in Peru [14]. It forecasts roughly 50% production growth by 2030 [15], a management forecast that depends on operators building on schedule [5]. Elemental Royalty closed its Vizsla Royalties purchase on September 15 [16]. On September 21, it agreed to buy a $290 million portfolio from Orion Mine Finance, paying partly in new shares [17]. OR Royalties reported a 96.8% June-quarter cash margin, a company-defined measure that sits before overhead, financing, and taxes. Even so, an unscheduled six-day mill shutdown at its cornerstone Canadian Malartic asset helped push deliveries below the prior quarter [18].
That is also why “royalties are safe, unleveraged gold” is too simple. In a hypothetical 20% gold decline, a 2% revenue royalty loses about 20% of its income and a streamer paying a fixed price per ounce sees its margin per ounce fall about 22% [5]. Royalty companies also carry their own debt, expenses, and valuations. And deals paid in new shares can dilute existing shareholders, shrinking each share’s slice of the company [19]. The takeaway is that contract terms and growth in cash per share matter more than the number of ounces or deals.
Hot Inflation, Falling Rates: A Market Signal or a One-Day Reaction?
When the PPI report came in much hotter than expected on Thursday, October 15 [4], [6], interest rates went down rather than up [6]. One possible explanation is “buy the rumor, sell the fact,” the pattern in which investors position ahead of expected news and then reverse once it arrives [20]. The other is renewed confidence that the Federal Reserve has inflation under control [5].
Neither explanation is confirmed, and a single day’s move doesn’t settle it. What would make the reaction meaningful is whether rates keep easing as inflation data stays hot, or catch up with the inflation picture in the weeks ahead.
Retail Sales Jumped 0.8%, but How Much Was Real Consumer Strength?
U.S. retail sales rose 0.8% in September, beating expectations [21], [6] and suggesting consumers were holding up despite higher prices. But the report released Thursday, October 15, told a less impressive story beneath the headline. Gasoline station sales jumped 6.4%, while retail sales excluding gas stations rose just 0.2% [21]. With gasoline prices up 9.1% in September’s consumer price index [1], much of the headline strength reflected consumers paying more at the pump rather than a broad acceleration in purchasing.
The distinction matters because retail sales measure dollars spent and are not adjusted for price changes [21]. Stronger sales figures can reflect higher prices, greater quantities purchased, or both. For investors, the better question is whether spending growth is broad-based and supported by household purchasing power, rather than concentrated in categories where prices are rising sharply. What would make the headline a more durable signal is solid growth outside gas stations in the months ahead.
Frequently Asked Questions
Why do inflation reports matter so much to interest rates and stock prices?
Inflation reports shape expectations for what the Federal Reserve may do next, and those expectations ripple through borrowing costs and stock valuations. When prices rise faster than expected, investors often anticipate higher interest rates for longer. That raises the return available on safer assets and can make future company earnings worth less in today’s terms. Last week offered a clear example: the hot consumer price report on October 14 was followed by a sell-off [1], [2]. For investors, the useful habit is to look past a single day’s reaction and ask whether the inflation trend is changing the longer-term path for rates.
What is the difference between the consumer price index and the producer price index?
The consumer price index measures the change in prices households pay for goods and services, while the producer price index measures the change in selling prices received by domestic producers [1], [3]. Because producer prices are measured earlier in the supply chain, they may foreshadow price changes that later reach consumers [3]. Both ran hot last week. September consumer prices rose 0.6% for the month and 3.7% over the year [1]. Producer prices for final demand rose 1.3%, the largest monthly increase since March 2022 [4]. Watching both helps investors judge whether inflation pressure is easing or still building.
Why can interest rates fall even after a hot inflation report?
Interest rates respond to many forces at once, so a hot inflation reading does not always push them higher. Markets may have already positioned for bad news, investors may grow more confident that the central bank will respond, or money may move into government bonds when other assets look riskier. After last week’s hot producer price report, rates fell [6]. Axios pointed to one possible reason: a flight to quality. Money appeared to move into safer Treasury securities as optimism around the AI buildout faded and chip stocks fell [6]. A single day’s move rarely settles which explanation is right, which is why we look for a pattern over several weeks.
How should investors read large industry spending forecasts?
A large spending forecast describes where a market could go, not money that has already been committed. Forecasts help show the scale of an opportunity, but they are not purchase orders, and the details often matter more than the headline total. Last week’s example was a Bank of America forecast of about $2.2 trillion in annual AI data-center hardware spending by 2030 [9], [10]. Inside that total, optical networking was a far smaller slice, about $111 billion [9], [10]. For investors, the more useful questions are how the spending is divided and which suppliers can earn a durable profit from their share of it.
How do royalty and streaming companies make money, and how is that different from owning a mining company?
Royalty and streaming companies provide money to miners in exchange for a share of future revenue or metal rather than running mines themselves. A stream, for example, pays a large sum upfront and then an agreed price for each ounce delivered [14]. Because the royalty company does not carry most operating costs, margins can be very high. That structure does not remove risk. These companies depend on operators they do not control, carry their own debt and valuations, and can dilute shareholders when they pay for deals with new shares [19]. Last week’s look at gold’s pullback was a reminder that contract terms matter as much as the metal price.
What makes a market development “news” rather than “noise” for investors?
News is a development that changes the underlying facts investors rely on, such as earnings power, costs, interest rates, or the supply of a scarce product. Noise is a market reaction or narrative that moves faster than the evidence behind it. The distinction is not about whether something is worth discussing, but whether it is likely to matter after the headline fades. Last week, hot inflation data that tested assumptions about AI growth was news. A one-day drop in interest rates after a hot report remained an open question rather than a verdict. We separate the two so clients can focus on what is durable.
The Throughline
Last week kept returning to the same lesson: the headline number rarely tells the whole story. Inflation reports came in hot, yet interest rates eased after one of them. Retail sales looked strong, yet much of the gain came from higher gas prices. AI infrastructure spending is forecast to reach enormous totals, yet only part of that money flows to any one group of suppliers. Gold royalty companies are often described as a safer way to own gold, yet their results still depend on contract terms, operators, and deal costs.
What connects these stories is the gap between a single figure and what sits underneath it. For investors, the distinction that matters is composition: what is driving a number, who benefits from it, and whether it reflects lasting change or a price effect. The largest unresolved question is whether expectations for AI growth can keep supporting U.S. stocks while inflation keeps interest rates elevated. That tension did not settle last week, and it is the thread we plan to keep following.
The common thread is simple: look beneath the headline before drawing conclusions. One concrete thing we are watching next is the October retail sales report, scheduled for November 17 [21], to see whether spending outside gas stations picks up or stays modest. That will help show how much consumer strength reflects real buying rather than higher prices.
If you’d like to talk through how last week’s developments relate to your own plans, you can reach us at https://tuttlewealth.com/contact/
Sources & References
- [1] U.S. Bureau of Labor Statistics, “Consumer Price Index – September 2026,” October 14, 2026. View source
- [2] M. Tuttle, “The Portfolio Built for the Next Empire,” The Daily H.E.A.T., October 15, 2026. View source
- [3] U.S. Bureau of Labor Statistics, “Producer Price Index (PPI) Overview.” View source
- [4] U.S. Bureau of Labor Statistics, “Producer Price Indexes – September 2026,” October 15, 2026. View source
- [5] M. Tuttle, “The 43-Person Gold Giant,” The Daily H.E.A.T., October 16, 2026. View source
- [6] N. Irwin, “The too-hot-for-comfort economy,” Axios, October 15, 2026. View source
- [7] M. Tuttle, “Sold Out Into 2029. Now Read the Fine Print.,” The Daily H.E.A.T., October 12, 2026. View source
- [8] Reuters, “Investors temper Anthropic IPO valuation expectations over revenue growth slowdown, sources say,” October 15, 2026. View source
- [9] XXQuant, “Institutional research summary of Bank of America Global Research report, September 29, 2026; title not retrieved.” View source
- [10] XXQuant, “Institutional research summary of Bank of America Global Research report, September 29, 2026; title not retrieved.” View source
- [11] NVIDIA Developer, “A New Era in Data Center Networking with NVIDIA Silicon Photonics-Based Network Switching.” View source
- [12] HPCwire, “NVIDIA and Cisco Introduce New Pluggable Optics Form Factor to Scale AI Factories,” October 12, 2026. View source
- [13] Credo, “Silicon Photonics PICs.” View source
- [14] Wheaton Precious Metals, “Wheaton Precious Metals Announces Closing of Silver Stream with BHP on Antamina,” Form 6-K, U.S. Securities and Exchange Commission, April 1, 2026. View source
- [15] Wheaton Precious Metals, “Wheaton Precious Metals Exceeds 2025 Production Guidance and Provides 2026 and Long-Term Outlook Projecting Approximately 50% Growth to 1.2 Million Gold Equivalent Ounces by 2030.” View source
- [16] Elemental Royalty, “Elemental Royalty Completes the Acquisition of Vizsla Royalties and Its 2-3.5% NSR Royalties on the Panuco Project,” Form 6-K, U.S. Securities and Exchange Commission, September 15, 2026. View source
- [17] Elemental Royalty, “Elemental Royalty Announces US$290 Million Acquisition of Royalty and Streaming Portfolio, Strategic Divestment of Generation Business and Management Succession,” Form 6-K, U.S. Securities and Exchange Commission, September 21, 2026. View source
- [18] OR Royalties, “Second quarter 2026 consolidated financial results news release,” August 2026. View source
- [19] Nasdaq, “Stock Dilution: Meaning, Types, Effects and Risks.” View source
- [20] IG, “‘Buy the rumour, sell the news’ explained.” View source
- [21] U.S. Census Bureau, “Advance Monthly Sales for Retail and Food Services, September 2026,” Release No. CB26-165, October 15, 2026. View source
- [22] Board of Governors of the Federal Reserve System, “October 2026 [calendar of events].” View source
- [23] Federal Reserve Bank of Chicago, “Bank Holidays [FOMC meetings and blackout periods].” View source
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