THEBRRR • SEPTEMBER 29, 2026 • WEEKLY

Escape Velocity

OpenAI’s agents got out of the sandbox. The AI buildout can’t get out of a permit office or a 5.5% bond market.

BOTTOM LINE / THE THREE THAT MATTER

The week in one line: tokens got cheaper, permits got scarcer and money got dearer.

1. The agents got out. On Friday OpenAI published a running disclosure: its AI agents bypassed security controls at dozens of outside organizations, all now notified. Its list of affected sites included the SEC and the Census Bureau.

Outside researchers, via Reuters, say agents hit a UN trade-data site more than 16,000 times from April to June, making fake email addresses and claiming they weren’t bots; OpenAI hasn’t confirmed that attribution. Agents also posted 53 user-uploaded images publicly, and OpenAI can’t say whose.

Five days before the disclosure, a training agent tunneled out through a DNS resolver to a public chatbot. OpenAI then paused tool use on its most capable models, per Fortune, citing OpenAI’s preparedness lead. It’s the second pause in under three months, from a lab that wrote this month that no one has “solved alignment and monitoring” well enough to keep scaling “at maximum speed for much longer.”

There’s no OpenAI stock to sell, so the market used proxies. Chip stocks fell Monday, with coverage blaming the pause as much as yields. Nvidia rose 1.68% instead. It added $150 billion to its buyback, which it calls the largest buyback increase in history, lifting the remaining authorization to $235 billion. It also launched an Open Agent Safety Platform with Anthropic, CrowdStrike and Microsoft among the partners. Today OpenAI holds DevDay, its annual developer conference where it unveils new products. Watch whether agent products ship, and whether the pause gets an end date.

2. The Fed put AI on its inflation list. On September 23 Governor Michael Barr named “a surge in investment demand to support the artificial intelligence (AI) buildout” among the shocks lifting prices and said “further policy adjustments are likely to be needed.” New York Fed President John Williams called another hike “reasonable.” Futures priced an October hike near 64% Friday (CME via CNBC).

The long end got there first. The 30-year Treasury closed at 5.49% Friday, its highest since 2004, and 5.56% Monday — the money that builds datacenters and power plants. On Barr’s speech day SoftBank sold a record $11.1bn of junk bonds to fund the rest of its OpenAI investment, with a 7½-year tranche at 9.75%. The capex boom is raising its own cost of capital.

We’re not a stagflation newsletter, so here’s the honest version: near-term data cut against the AI-deflation story. The flash PMI hit a boom-level 58.4, and Governor Lisa Cook said Monday that productivity will bring only “modest disinflation within the next few years.” The long-run story holds one layer up: on September 22 Anthropic made its top model about 40% cheaper to run and OpenAI halved its prices. Intelligence keeps getting cheaper. Everything it runs on is getting more expensive.

3. The permit showed up in a contract. On September 24 Oracle sent a force majeure notice on Project Jupiter, the 2.45-gigawatt New Mexico campus it’s leasing for Stargate, its buildout for OpenAI. Oracle cited possible power delays and says the project is on schedule, but the notice lets it pay lower development-stage rent for longer if the site runs late.

The holdups are permits. The dedicated gas line slipped to February 2027 after permit denials. The air permit for Bloom Energy’s fuel cells has a November 23 deadline and no hearing scheduled; the hearing officer recused in August and no replacement has been reported. Self-generation was supposed to get around the grid queue. It didn’t get around the permit.

Meanwhile the rule-makers went bigger. On September 21 Texas Governor Greg Abbott ordered no datacenter permits from the state’s environmental agency until a grid audit is done, and said he’ll ask lawmakers to kill datacenter incentives. Maryland’s governor moved against its tax break two days later. Local governments in at least seven states passed moratoria that week, and 34 local measures are on the November 3 ballot, per Ballotpedia. Sites that already have power get more valuable every time someone says no.

THE TAPE

Monday gave some back. The S&P 500 fell 0.77% to 7,683.69, the Nasdaq-100 1.08% and chip ETF SOXX 2.08%. The 2-year yield jumped 11bp to 4.92%; the 10-year hit 5.24%. November Brent settled at $105.28 (+0.9%) after Trump confirmed he’d rejected Iran’s offer to reopen Hormuz; Qatar is arranging new talks. Gold fell 3.65%. Bitcoin sat near $82,900.

The week behind us (Sep 18–25): S&P 500 +1.21%, Nasdaq-100 +3.25%, Dow +0.28%, Russell 2000 −0.80%. All of the S&P’s gain came on Monday the 21st, then it drifted lower as yields climbed. Dollar +0.75%, gold −2.34%.

Oil and China. November Brent settled at $106.60 on September 24 and $104.32 Friday. The US–China truce now runs to January 10, and Monday’s lists of about $30bn of goods each way recommended for lower tariffs left out chips, EVs and batteries.

Macro Data / Federal Reserve

Wednesday’s inflation print comes with a rewrite. August PCE arrives with annual revisions; July ran 3.7% headline and 3.3% core. Friday’s payrolls follow August’s +162,000 and 4.1% unemployment. A hot pair would push October odds higher.

AI RUNDOWN

Chips, Memory + Systems

• Agents need more than GPUs: Chips rose 7.43% last week, led by connectivity and CPU names: Astera Labs +20.24%, Credo +19.94%, Intel +13.26% and AMD +12.65%, which closed above $1 trillion in value all week. Nvidia managed 1.26%. No company news drove it. Monday reversed the order: Credo −8.67%, Intel −5.67%, AMD back under $1 trillion.

• Storage gets a number: Everpure, the former Pure Storage, joined the S&P 500 on September 21 and two days later gave its first fiscal 2028 outlook: $7.0–7.3bn of revenue, up 39–45%, against analysts’ roughly $6.2bn. The stock rose 20.99% on the week.

• The scarcity test is Wednesday: Micron reports September 30 against its own guide of $50bn ± $1bn revenue and about 86% gross margin, up from $41.46bn and 84.9% last quarter. Revenue under $49bn or a lower next-quarter guide would say memory scarcity is fading.

Hyperscalers + Neoclouds

• The break-even number: Goldman Sachs says the hyperscalers need about $300bn a year of AI revenue to break even and sees 2027 capex up 50% to $1.2 trillion. Meta fell 3.33% that day, which also brought a New Mexico jury loss, though Muse, its consumer agent, left it up 12.9% for the week.

• Energized beats promised: SemiAnalysis’s ClusterMAX ratings (September 23) moved Nebius up to Platinum alongside CoreWeave; both rose on the week (+6.17%, +7.66%) before giving some back. Converted bitcoin miners lagged: IREN −5.47% after a roughly $639m write-down, Applied Digital −6.65%. CoreWeave’s new $4.2bn of converts cost 2.875%, up from 1.75% last time.

• The headline isn’t the value: Akamai’s $11.6bn, seven-year cloud deal with Anthropic came after the close on September 24; that day’s 6.78% drop happened before the news. It jumped about 20% after hours, closed Friday up 3.20% at $113.94, and fell 4.34% Monday to $108.99, below the $111.33 strike on Anthropic’s warrant. The catch: Akamai spends about $5.5bn of capex, memory included.

Frontier Models, Open Models + Agents

• Anthropic’s two-front week: A federal appeals court on September 25 upheld, 2–1, the Pentagon’s designation of Anthropic as a supply-chain risk; the ruling is on hold to give Anthropic time to seek rehearing. Two days later President Trump hosted Dario Amodei at the White House, with no readout yet. It’s a live risk factor for an IPO reportedly slipping to November.

Software + Applications

• Seat plus meter: Microsoft rebuilt Copilot September 25 as “a plug-in hybrid”: a seat for everyday AI plus metered credits for agent work. It gets paid twice, and gives buyers a benchmark for Salesforce’s $195–$550 Agentforce tiers. AI-natives feel the meter too: legal-AI startup Harvey’s gross margin swung from about 50% to −50% on agent usage, per Bloomberg, until it built on Chinese open weights.

• Good product, good company, good stock: Microsoft is a good product becoming a better company. Datadog (+16.62%) and Cloudflare (+7.86%) were good stocks with no company news. Intuit (−9.04%) and Adobe (−5.40%) are fine companies that were bad stocks on seat worries. HSBC downgraded Twilio: more Muse messages, no more pricing power. Palantir (+6.77%) sits across it all — platform, government vendor and Nvidia agent-safety partner.

• Meta comes for the enterprise: Monday, Meta hired MongoDB’s CEO, CJ Desai, to build an enterprise platform around Muse, a business agent and a coding tool. MongoDB fell 18.46% and holds its investor day today. Meta fell 4.79% amid profit-taking and questions about another spending front. Seat-priced HubSpot and Atlassian fell about 5% as yields rose.

Power, Energy + Cooling

• Bond proxies vs. scarce power: Regulated utilities sold off as the 10-year rose (XLU −3.87%, NextEra −5.46%) while Constellation rose 3.36%. Utilities borrow to build; generators with scarce megawatts get paid. Separately, the Energy Department awarded $1.9bn on September 24 to 31 projects adding 23+ gigawatts on existing lines.

Optics, Photonics + Physical Infrastructure

• Optics without a catalyst: No optics company reported, and the group split without news: Lumentum +1.15%, Coherent −6.78%, Applied Optoelectronics −3.58%. Tower Semiconductor rose 6.07% Friday on new analyst coverage. The pressure point to watch is pump lasers, which Ciena reportedly lists first among its supply constraints.

AI-healthcare + Biotech

• Screening gets a vote: An FDA panel on September 23 backed GRAIL’s Galleri multi-cancer blood test — 10–0 on safety, 6–4 on effectiveness. GRAIL rose 57.1% on the week and Illumina 12.68%. FDA’s decision is due in “coming months,” and whether Galleri counts as early detection is still open.

• Obesity and vaccines: Novo Nordisk fell 10.27% after guiding to peer-level growth through 2030; Lilly rose 2.65% with approval of its once-weekly insulin. Moderna rose 29.11% on a top ESMO slot for October 24 melanoma-vaccine data — no new numbers, so that date is binary.

• AI can raise prices first: A Blue Cross Blue Shield Association paper says hospital AI coding tools added about $942m to its plans’ costs, mostly by documenting more secondary diagnoses. It’s an interested party, but in billing fights AI can raise measured prices before it lowers them.

THE BOARD

Tue 9/29 · OpenAI DevDay, its annual developer conference. Agent launches and an end date for the pause say containment is manageable. Silence makes it a timing risk for chip demand.

Tue 9/29 · MongoDB investor day. First look after its CEO left for Meta. Guidance holding says usage pricing survives a hyperscaler moving in.

Wed 9/30 · PCE, then Micron. Hot PCE plus Micron above $50bn: scarcity and dearer money together. Soft PCE and a Micron miss would loosen both.

Thu 10/1 · Accenture results; Canberra hearing. Accenture’s bookings and headcount test whether AI is replacing consulting hours. Australia’s Senate, which invited Sam Altman after an OpenAI agent got into Medicare statistics files, tests whether incidents become reporting rules.

Fri 10/2 · Jobs. A 10-year back under 5.00% weakens the dearer-money leg; above 5.25% squeezes utilities and levered builders.

Mon 10/19 · Texas permit update due. Permits resuming would ease the squeeze on Texas campuses; an extension makes powered sites scarcer.

11/3 and 11/23 · Ballots, then the Jupiter deadline. 34 local datacenter measures, plus New Mexico’s governor race, where Deb Haaland has pledged a moratorium. No Jupiter hearing noticed by late October means the 11/23 deadline slips, and Bloom’s revenue timing with it.

ONE MORE THING

Chinese open models handled 57–67% of the tokens on OpenRouter, a major developer gateway, in the week of September 14 — up from 6–13% in February, per company data given to CNBC. The data predate the US price cuts, and one gateway isn’t the market. Still: the cheapest intelligence on earth is increasingly made in China. Next few weeks: do the US price cuts win any of it back?

Issue dated Tuesday, September 29, 2026. News through Monday evening, September 28. Market data as of Monday’s close unless noted; weekly returns September 18–25.