Opening bell, April 7, 2026: S&P 500 opens at 6,587 as AVGO surges ~4% on Google-Anthropic TPU pact

NEW YORK, April 7, 2026. Broadcom (AVGO) opened at $327.08 on April 7, 2026, up ~3.9% from Monday’s close of $314.43, after announcing multi-year TPU chip and networking deals with Google and Anthropic through 2031. The S&P 500 opened at 6,587.66 before deepening its decline to around 0.9% as Trump’s 8 p.m. ET Iran deadline approach drove oil to $116 per barrel. Managed-care stocks UNH and HUM surged after CMS finalised a 2.48% Medicare Advantage rate increase for 2027 — adding more than $13 billion in new sector funding, far above the 0.09% proposed in January — with HUM leading the S&P 500 on the session at +10.4%. The structural story of the morning is the AVGO-Google-Anthropic announcement: a formal SEC 8-K filing that converts Broadcom’s AI infrastructure role from cycle-dependent to contractually anchored through the end of the decade.

AVGO +4%: The Google-Anthropic TPU deal — what the 8-K actually says

After Monday’s close, Broadcom filed an 8-K with the SEC disclosing two formally structured, multi-year agreements that materially change its AI revenue visibility profile. The first is a long-term agreement with Google to design and supply custom Tensor Processing Units for future generations of Google’s TPU programme, along with a supply assurance agreement covering networking and other components for Google’s next-generation AI racks — both running through up to 2031. The two companies have co-designed Google’s custom silicon since 2016, and the seventh-generation TPU, internally codenamed “Ironwood,” is now in production. This agreement confirms Broadcom as Google’s primary external silicon partner for the remainder of the decade, eliminating the persistent market concern that Google might internalise its chip design capabilities entirely.

The second deal expands the existing three-way collaboration between Broadcom, Google, and Anthropic — the developer of the Claude AI model series. Under the expanded arrangement, Anthropic will access approximately 3.5 gigawatts of next-generation TPU-based AI compute capacity through Broadcom beginning in 2027, as part of Anthropic’s multi-gigawatt total compute commitment. Broadcom CEO Hock Tan had previously indicated on an earnings call that Anthropic’s demand for TPU compute is expected to scale from 1 GW in 2026 to over 3 GW in 2027. The 3.5 GW figure formalises that ramp with a structural commitment — though the 8-K specifies that Anthropic’s actual utilisation of that capacity “depends on its continued commercial success.” That contingency clause is material, but Anthropic’s current trajectory makes it a low-probability constraint: the company’s annualised revenue run rate has surpassed $30 billion (up from approximately $9 billion at year-end 2025), and it now counts over 1,000 business clients spending more than $1 million annually — a figure that doubled in the preceding two months. Anthropic CFO Krishna Rao described the deal as “our most significant compute commitment to date to keep pace with our unprecedented growth.”

Why the 2031 horizon is more significant than it looks

Semiconductor contracts of this length are structurally unusual. Standard chip supply agreements operate on 12–24 month cycles that align with product generations and capital expenditure planning windows. A 2031 horizon — effectively five years from the filing date — converts Broadcom’s ASIC revenue from a business that must continually re-compete for customer wins into one with contracted visibility across multiple TPU generations. For a market that has consistently worried about Google eventually bringing chip design fully in-house, or pivoting meaningfully to alternative ASIC vendors, the 2031 agreement is a definitive resolution of the most persistent bear case against AVGO’s AI revenue durability.

The networking component of the Google deal deserves equal analytical weight. The 8-K explicitly includes “networking and other components for Google’s next-generation AI racks” — Broadcom’s switching and interconnect silicon that has historically been a margin-accretive, often-overlooked piece of its hyperscaler revenue. As Google builds out TPU v7 (“Ironwood”) clusters at scale, the networking layer scales proportionally, creating a revenue stream that compounds alongside the silicon commitments rather than running in parallel. Broadcom’s Q1 FY2026 results — $19.3 billion in revenue (+29% YoY), with AI-specific revenue of $8.4 billion (+106% YoY) — provide the baseline from which the 2031 deal’s contribution will be calculated. The company has publicly targeted $100 billion in annual AI chip revenue by 2027. Monday’s announcement is the most credible single data point in support of that target the company has produced to date. For context on how AI infrastructure deals like this affect the technology sector more broadly, the custom silicon trend is replicating across every major hyperscaler’s capital expenditure programme.

UNH +6.6%, HUM +10.4%: CMS finalises 2.48% Medicare Advantage rate for 2027

The managed-care sector’s best session of 2026 arrived Monday evening when CMS published its final 2027 Medicare Advantage and Part D payment rates — 2.48% above 2026 levels, translating to more than $13 billion in additional funding flowing to private insurers. The magnitude of the outperformance versus the January proposal is the story: in January, CMS had floated only a 0.09% rate increase — a near-zero adjustment that had sent managed-care stocks sharply lower and raised investor questions about the regulatory trajectory of Medicare Advantage under the Trump administration. The final 2.48% rate is a 25-fold increase over that proposal, and with estimated risk-score trends included, the all-in effective rate increase reaches approximately 4.98%.

The market reaction on Tuesday premarket reflected the severity of the January overhang being lifted: Humana (HUM) surged 10.4% — best-performing stock on the S&P 500 on the session; UnitedHealth Group (UNH) gained 6.6%; CVS Health (CVS) rose 7.3%; Elevance Health (ELV) climbed 5.3%; Centene and Molina Healthcare both added between 3% and 5%. Mizuho analyst Ann Hynes captured the sector’s collective sigh of relief: “This improvement should allow the industry to expand margins in 2027 when coupled with benefit cuts.” Leerink analyst Whit Mayo added that the rate “lessens the growing perception that CMS’ harsh policy stance on the group is worsening” and makes the sector “perceived to be more investable.” CMS Administrator Dr. Mehmet Oz framed the decision in beneficiary terms: “Medicare Advantage and Part D must be beneficial for those who depend on them.” The rate applies to the more than 34.1 million Americans enrolled in Medicare Advantage plans — more than half of all Medicare-eligible beneficiaries. For managed-care investors, the path to 2027 margin expansion is now structurally better defined than it has been at any point in 2026. Analyst coverage on the managed-care sector will update materially through Tuesday’s session as sell-side models incorporate the 2.48% baseline.

The Iran backdrop: oil at $116 and Trump’s 8 PM deadline

The positive AVGO and managed-care catalysts are operating against a worsening Iran war backdrop that drove the S&P 500 from its 6,587 open to approximately –0.9% by midday. WTI crude oil hit $115.8 per barrel during Tuesday’s session — its highest level since April 2008 — following overnight U.S. strikes on Kharg Island, Iran’s primary oil export hub and the origin of approximately 90% of the country’s crude export volume. Brent climbed to $111.0. Trump issued escalatory social media posts before the 8 PM ET deadline he had set, with reports of his characterisation that “a whole civilization will die tonight.” The Kharg Island strikes represent the single most consequential escalation of the conflict’s energy infrastructure dimension: where prior strikes targeted military and nuclear facilities, strikes on Kharg Island directly threaten the physical infrastructure through which Iran’s remaining oil export capacity operates — adding a supply disruption risk on top of the Hormuz throughput constraint that has been in place since February 28.

The dual oil price structure — paper futures at $115 WTI versus the Dubai physical benchmark already at a significant premium — is converging toward paper as physical market reality forces futures to reprice upward. The SPR release buffer that had been dampening retail price impact is entering exhaustion, and gasoline prices at the national average are now above $4 with the seasonal driving demand pick-up approaching. For the energy sector, Tuesday’s session is straightforwardly constructive — Kharg Island strikes remove ambiguity about whether the conflict would reach core export infrastructure. For equities broadly, the combination of $115 oil and a looming 8 PM deadline compresses risk appetite precisely at the moment when AVGO and managed-care are generating genuine fundamental positive catalysts. That tug-of-war between company-specific strength and macro headwind defines Tuesday’s session dynamic more precisely than any single price level does. The VIX remaining elevated above 25 is the market’s honest summary of where uncertainty sits.

Tuesday’s session in context — AI competes with Iran for the tape

Tuesday April 7 is the most concentrated collision of AI structural bullishness and geopolitical macro bearishness since the Iran conflict began. Broadcom’s 2031 Google deal and the managed-care CMS rate release are among the strongest sector-specific catalysts of the quarter. The Kharg Island strikes and Trump’s 8 PM deadline are among the most acute escalation signals of the war period. In a normal macro environment, either set of developments would dominate a session’s price action. In the current environment, they are occurring simultaneously, with the result that individual positions — long AVGO, long HUM — are working even as the broader tape struggles to advance. That selective performance is characteristic of the late-stage conflict market structure that has prevailed since early March: institutional capital concentrating in businesses structurally immune to the Iran shock (AI infrastructure, managed care with regulatory tailwinds) while reducing exposure to Iran-sensitive consumer, transportation, and discretionary sectors. The 8 PM deadline’s resolution — whatever it produces — will set Tuesday’s closing dynamic and Wednesday’s opening context. Until then, the session is trading on two separate narratives simultaneously. PreMarket Daily’s daily trading plan covers each session’s key catalysts before the open.