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Mira Rapp-Hooper
Brookings Institution
Fmr. Senior Director for Asian Affairs, Biden NSC The Hill · Brookings · May 12, 2026
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Rapp-Hooper is the sharpest former NSC voice on what the Trump-Xi summit can and cannot deliver, and her read directly validates the thin-deliverables base case. Her core assessment (The Hill, May 12): “Agricultural purchases, fine, a bunch of Boeing jets, go for it. All pretty unremarkable and really not supporting the idea that the United States and China are entering into some kind of grand bargain.” This is the most precise single-sentence summary of the summit’s commercial scaffolding — and why the joint statement’s Hormuz language, absent a mechanism, fits the same pattern. As former Senior Director for Asian Affairs on the Biden National Security Council, Rapp-Hooper brings direct institutional knowledge of how US-China summits actually produce deliverables versus optics. Her framing is structurally important: the absence of a grand bargain is not a failure of this summit in particular — it is the structural constraint of US-China summitry in general. Both sides manage the relationship more than they resolve it. Applied to Iran: China co-signing “Hormuz must remain open” and “Iran should never have nuclear weapons” in the joint statement is exactly the kind of unremarkable-but-stabilising language Rapp-Hooper identifies as the realistic summit output. The working lunch today could add commercial specifics — but it is unlikely to produce the Iran pressure commitment that would meaningfully shift the Scenario B/C balance. Her broader Brookings work on extended deterrence in Asia also directly informs the Taiwan-as-concession risk: any movement on Taiwan arms sales or declaratory policy in exchange for Iran help would, in her framework, be a strategic cost that the commercial wins cannot offset. | The Hill · May 12, 2026 Brookings Institution Fmr. Biden NSC Senior Director, Asian Affairs ✔ last 48hrs |
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Jon B. Alterman
CSIS
Zbigniew Brzezinski Chair in Global Security & Geostrategy CSIS / Hidden Forces · Apr–May 2026
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Alterman is producing the most comprehensive institutional analysis of the Iran war’s strategic logic and end-state. His core read, consistent across multiple CSIS outputs in April–May 2026: “Iran’s Strait of Hormuz gambit is a war of endurance, not firepower — Tehran is betting it can outlast US political will.” In his Hidden Forces podcast (Apr 30): “Iran won’t capitulate. The regime has concluded that it would eventually be attacked regardless of any nuclear agreement. That calculation changes what a deal can accomplish.” On China: Alterman and Kagan (CSIS May 12) find China “watches the Iran war with unease” — Beijing fears both the Hormuz disruption to its energy supply and how the conflict reshapes a global order it relies on but cannot control. On why military success hasn’t produced political outcomes: “Translating military success into lasting political outcomes may prove far more difficult than anticipated.” His March NYT op-ed: the US may be “drifting toward Israel’s strategy of repeated strikes with no clear end” — trading problem-solving for perpetual war. Alterman formerly served on the Policy Planning Staff at the US State Department and as special assistant to the assistant secretary for Near Eastern affairs, giving his analysis direct institutional grounding in the US foreign policy system. | CSIS State of Play (May 12) Hidden Forces Ep. 478 (Apr 30) NYT Commentary (Mar 23) Brzezinski Chair, Global Security ✔ last 48hrs |
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Jane Darby Menton
Carnegie Endowment for
International Peace Non-Proliferation & Nuclear Policy Carnegie Emissary · May 8, 2026
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Menton provides the sharpest nuclear-specific analysis of any current voice, and her May 8 Carnegie piece delivers two observations that reframe the entire negotiating situation. First, the paradox: “Ironically, the Strait of Hormuz has emerged as a more credible ‘nuclear option’ for Iran than its nuclear program.” Iran’s enrichment infrastructure was largely destroyed in the 2025 Twelve-Day War — yet its ability to disrupt 20% of global oil supply proved a more potent deterrent. Second, the reconstitution risk: “Tehran may conclude that its ability to disrupt the global economy has established enough deterrence to begin quietly rebuilding its program underground. Reconstituting large industrial-scale enrichment looks unlikely in the immediate future — but the desire may be greater than before.” On the broader non-proliferation stakes: Menton warns she is “worried about the growing salience of the bomb and the concurrent breakdown of norms, bargains, and diplomatic tools that have historically limited its spread. Further damage to institutions like the IAEA and NPT could leave us in a more dangerous world where nuclear crises occur more often and are harder to defuse.” This analysis directly informs why the joint statement’s “Iran should never have nuclear weapons” language matters beyond the current conflict: it shores up the NPT framework at a moment of acute institutional stress. | Carnegie Emissary "Two Wars Later, Iran’s Nuclear Question" May 8, 2026 ✔ last 7 days |
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Erin D. Dumbacher
Council on Foreign Relations
Stanton Nuclear Security Senior Fellow CFR · May 6, 2026
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Dumbacher’s May 6 CFR analysis identifies the three structural nuclear risks the war has created — and why the current diplomatic approach may leave the worst of all worlds. Her most important warning: “There is a risk that the United States could withdraw from the region without a comprehensive diplomatic settlement because of domestic pressure, an unwillingness to commit ground troops, or critical munitions shortfalls. In this scenario, Iran could be left with enough fissile material and expertise to sprint to weaponization on its own timeline, making the Islamic Republic a second de facto nuclear weapons state in the Middle East.” On the “mow the grass” trap: the US and Israel could combine military operations with diplomacy, but “public support for sustained military engagement tends to erode over time” — and if it collapses before a deal is reached, the nuclear outcome is worse than the pre-war status quo. On the second structural risk: Hormuz closure has made nuclear energy more attractive to Gulf and Asian states precisely when the region’s critical infrastructure is being demonstrated as vulnerable to drone attack — creating a potential proliferation feedback loop. The Trump-Xi joint statement’s language that “Iran should never have nuclear weapons” directly addresses the sprint-to-weaponization scenario Dumbacher identifies as the war’s most dangerous tail risk. | CFR "Three Nuclear Security Lessons from the Iran War" May 6, 2026 ✔ last 7 days |
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Robert Malley
Fmr. US Special Envoy to Iran
(Biden administration) Lead JCPOA Negotiator (Obama) NPR · Apr 18, 2026 · most recent available
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Malley’s April 18 NPR interview remains the most precise diagnosis of the trust deficit from any former US negotiator. His core read: “Trump is impulsive and temperamental; Iran’s leadership is stubborn and tenacious.” On the trust collapse: “The level of trust is probably almost at an all-time low. It’s hard for them to take at their word what they’re hearing from US officials.” On the generation discontinuity — directly relevant to the post-Khamenei IRGC-led negotiating posture: “The leadership in Tehran that agreed to the JCPOA is now gone — killed in Israeli airstrikes. Whatever lessons were learned in the past have to be viewed with a lot of caution, because so much has changed.” On the HEU BATNA logic: “Once they give up their stockpile, they can’t recapture it the next day” — Iran’s existential reason for insisting on a return clause in any third-country custody arrangement. The Democracy Now interview (Apr 14) added context from Iranian negotiator Seyed Mousavian, who confirmed Iran had offered to dilute its entire 60% HEU stockpile to below 5% and accept zero enrichment stockpile — consistent with the WSJ’s third-country custody reporting — suggesting the gap is narrower on substance than rhetoric implies. | NPR Apr 18, 2026 Fmr. Biden special envoy Lead JCPOA negotiator ⚠ most recent available |
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Wendy Sherman
Fmr. US Deputy Secretary of State
(Biden administration) Lead JCPOA Negotiator (Obama) Slate / NPR · Apr–May 2026
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Sherman’s May 2026 Slate interview (the most recent) adds a structural critique of the current US negotiating architecture that goes beyond Iran: the State Department has been “hollowed out” and its Bureau of Near Eastern Affairs shed scores of career officials, “many replaced by greener subordinates or political appointees.” The department also “reportedly laid off experts on oil and gas who would otherwise have been tasked with troubleshooting how the US” managed the Hormuz crisis. She told Slate she was “glad” Vance brought experts to Pakistan — “because you can’t do this just with Steve Witkoff and Jared Kushner.” Her April 18 NPR observations remain structurally predictive: “You cannot do a negotiation with Iran in one day. You can’t even do it in a week. To get agreement on the JCPOA took a good 18 months.” And on maximalism: “The Trump administration came in with maximalist demands and actually just wanted Iran to capitulate. No nation — even one as odious as the Iran regime — is going to capitulate.” Sherman separately identified the ZOPA landing zone on enrichment as “a suspension for 10, 15 or 20 years with intrusive IAEA monitoring” — now confirmed by the Axios MOU at 12–15 years. The institutional deficit she identifies helps explain why the Trump negotiating team struggles to close the technical details even when political will exists. | Slate (May 2026) NPR (Apr 18, 2026) Fmr. Biden Deputy SecState Lead JCPOA negotiator ⚠ most recent available |
| Issue | US position (Axios MOU, May 6) | Iran position (May 10 formal response + stated red lines) | ZOPA | Movement & status — May 12 |
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Uranium enrichment
Narrowing ↑ — duration gap only
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MOU: 12–15yr moratorium; no enrichment during period; 3.67% max post-moratorium; violation extends moratorium. | May 10 response: agrees to suspend enrichment but for a shorter period than 20 years. Iran’s standing offer has been 5yr; latest response likely 5–10yr. Nuclear enrichment remains “non-negotiable” as a permanent right (NPT basis). | NARROWING ↑ | The clearest convergence in the entire framework. Both sides now accept a moratorium concept — the dispute has compressed to a duration question (5–10yr vs 12–15yr). Featherstone: "the differences on nuclear issues are actually not that great anymore — it’s still substantial but can be narrowed." The 12yr MOU landing zone and Iran’s 5yr offer leave a 7-year gap that a Beijing-mediated compromise (8–10yr) could bridge. Main obstacle: Iran insists nuclear discussion deferred until after ceasefire. |
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HEU handover (~440kg at 60%)
Gap — custody destination + return clause
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MOU: Iran hands over ~440kg 60%-enriched HEU. Two Axios sources: destination is the US. US official: option being discussed is moving material to the US. | May 10 response: Iran offers to transfer some HEU to a third country (not the US), with a return clause if Washington exits any deal. Also offers to dilute remaining HEU separately. Explicitly rejects transfer to the US. Rejects dismantlement of nuclear facilities. FM Araghchi: uranium “will under no circumstances be transferred anywhere” (updated: to the US). | GAP → NARROWING | This issue has moved more than Trump’s framing suggested. Iran’s shift from "no transfer anywhere" to "third-country custody" is material. The return clause is the BATNA protection: Iran retains a reversible position. Bridge mechanism: Russia held Iranian uranium under the JCPOA (JCPOA Article T, Arak heavy water to Russia). A third-country escrow — potentially Russia, China, or IAEA-supervised — with agreed conditions for return is a documented precedent. The gap is no longer “where” but “under what return conditions.” |
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Ballistic missiles
None — not in Iran’s response
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MOU alludes to “some controls on their missile program” (Sherman, Bloomberg). US 9-pt counter: limits on range and number. | Not addressed in Iran’s May 10 response. Senior IRGC: missiles are “the red line of the red lines.” Parliament: missiles entirely off the table at current phase. | NONE | No movement. Iran’s May 10 response deliberately excluded missiles — reinforcing that this is a 30-day follow-on negotiation item at best, not a current-phase concession. Any missile provision is second-order to the sequencing dispute. |
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Strait of Hormuz
Stalled ↓ — sovereignty vs reopening
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MOU: Hormuz opens within 30 days of signing. Blockade ends upon MOU signing. US does not recognise Iranian authority over international waters. | May 10 response: demands “Iranian management of the Strait of Hormuz if certain commitments are fulfilled.” Sovereignty claim. Also: end US blockade as a precondition. Currently allowing selective toll-paying passage (~4/day). Al Kharaitiyat LNG transit in progress today (Iran-Pakistan arranged). | STALLED ↓ | May 15 update: Xi’s anti-toll language is the strongest external challenge yet to this issue. The White House readout states Xi “made clear China’s opposition to the militarisation of the strait and any effort to charge a toll for its use” — directly repudiating Iran’s toll-charging sovereignty demand in a US government document. China — Iran’s largest oil buyer — has publicly opposed its most charged negotiating position. The ~30-vessel overnight transit simultaneously advances the diplomatic signal and entrenches Iran’s BATNA: Iran has shown it can open Hormuz selectively for China without conceding sovereignty. China’s own readout was silent on Iran, preserving its ability to tell Tehran the US overstated the commitment. Status: STALLED → NARROWING (conditional on Iran’s formal response accepting selective-passage as a governance bridge). If Iran contests the anti-toll language, reverts to STALLED. |
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Frozen assets / sanctions core
Documented ZOPA — stable
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MOU: phased release of billions in frozen Iranian assets upon verified compliance. | May 10 response: unfreezing of assets explicitly listed as condition. Reparations demand absent from formal response (had been in Iran’s 14-pt plan). Full unblock tied to comprehensive deal. | YES ↑ | Most stable ZOPA in the framework. Both sides have accepted the phased-release structure. Reparations absent from the May 10 response is a meaningful de-escalation. Remaining gap: Iran wants assets released as part of ceasefire-first; US wants enrichment concessions first. The JCPOA precedent (phased sanctions relief against phased nuclear compliance) is directly applicable. |
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Lebanon / Hezbollah / proxies
Stalled — all-fronts linkage explicit
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US: Lebanon is a separate track. Iran must end proxy support as part of any deal. Lebanon ceasefire runs independently. Israel-Hezbollah truce fragile. | May 10 response: explicitly states “end of war on all fronts including Lebanon” as a precondition. Iran’s most consistent demand since April 8 ceasefire began. IDF continues Lebanon strikes despite truce. | STALLED | The Lebanon linkage is Iran’s primary leverage mechanism against US sequencing. By insisting all fronts end simultaneously, Iran prevents the US from treating Lebanon as a separate Israeli track. The Lebanon ceasefire (April 16) is fragile — continued IDF strikes give Iran recurring justification for its all-fronts demand. If Lebanon ceasefire collapses, the Hormuz ceasefire framework becomes untenable for Iran domestically. |
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Sanctions relief (secondary + oil)
Narrowing ↑ — reparations dropped
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MOU: gradual lifting of primary, secondary, and nuclear-related sanctions. Phased upon verified compliance. IRGC FTO designation last or never. | May 10 response: “lifting US sanctions on Iranian oil” explicitly listed as condition. Reparations demand absent from May 10 formal response (significant de-escalation). Full sanctions lift required for comprehensive deal. | NARROWING ↑ | Reparations dropped from formal response is the clearest single concession in Iran’s May 10 reply. The landing zone on sanctions is well-charted from JCPOA precedent: oil sanctions lifted early; secondary sanctions phased; IRGC FTO designation last. Iran’s condition of oil sanctions first aligns with ceasefire-first sequencing — if the sequencing dispute resolves, this issue largely resolves with it. |
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Security guarantees / non-aggression
Bridgeable — Iran wants UN SC
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MOU declares war end. Political non-aggression commitment. Trump: “if they comply, they’ll be fine.” No formal treaty. | May 10 response: demands UN Security Council guarantees against renewed strikes. Specific mechanism rather than political assurance. Iran experienced being attacked while talks were ongoing (Feb 28) — requires binding external guarantee. | BRIDGEABLE | May 14 update: the joint statement modestly advances this issue. China co-signing Hormuz and nuclear language in a public bilateral statement is a step toward the multilateral institutional guarantee Iran has demanded. It falls short of a UNSC resolution, but it establishes that the world’s two largest economies publicly agree on the nuclear and Hormuz principles — which could anchor a future UNSC endorsement. Status: BRIDGEABLE — joint statement is a small constructive step. |
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Sequencing / timing
Gap — BINDING CONSTRAINT
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Nuclear commitments must come first, then blockade lift, then Hormuz opens in 30 days. MOU is the instrument. Rubio: nuclear is the MOU’s core deliverable. | May 10 response: ceasefire must come first. Then 30-day negotiating period after conflict ends to finalise nuclear terms. Iran explicitly framing current phase as “exclusively focused on cessation of hostilities.” Nuclear enrichment “non-negotiable at the current stage.” | GAP — BINDING | May 15 update: the 30-vessel transit introduces a new sequencing dynamic. Iran has implicitly demonstrated option 3 (a short trust-building stand-down signal) by allowing ~30 vessels to transit as a post-summit goodwill gesture. This is the closest the two sides have come to a practical sequencing bridge: Iran acts first (opens corridor) in response to Chinese engagement (summit), without requiring a formal ceasefire-first or nuclear-first commitment. The question is whether this informal sequencing logic can be formalised. The Wang Yi-Araghchi private channel (Wang Yi called Dar on May 13 urging Pakistan to “step up mediation”) is the most likely transmission mechanism. Iran’s formal response to the summit (expected 24–48hrs) will reveal whether Tehran sees the 30-vessel transit as a one-time diplomatic signal or the beginning of a sustained confidence-building framework. The binding constraint remains — but the 30-vessel transit has created a new informal sequencing precedent that did not exist 48 hours ago. |
| — Iran Attribution — | — Total Return — | — Weekly path Δ% — | — NTM P/E — | — Q1'26 EPS Rev. — | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Industry (GICS L3) | Industry Group | % war | Materiality | Mar 31 | Apr 28 | Signal | W1–3 | W4–5 | W7+(blk) | Feb 27 | Apr 28 | Δ% | Direction | Δ$ est |
| Exposure type | A · Peace (~5%) | B · Stalemate (~37%) base | C · Escalation (~58%) — LEADING | Structural action |
|---|---|---|---|---|
| Energy-intensive ops Airlines · Chemicals · Shipping | Fuel normalises to $72–78 WTI by Q3 (4–8 week physical lag). Deferred hedges vindicated. | WTI $85–95 structural floor through FY27. Budget from physical (~$150), not futures (~$95). 500M+ barrels already lost. | WTI $125+. Airline multi-quarter losses. Chemical margin collapse. Goldman recession >65%. | Lock 6–12mo Brent hedge at $95–100 NOW. Physical ~$150 = futures temporarily suppressed. |
| GCC revenue exposure >15% revenue from KSA/UAE/Qatar | GCC capex recovers H2. Vision 2030 re-accelerates. | IMF MENA 3.2%→1.1%. Do not assume pre-war GCC trajectory. | Aramco infrastructure risk reactivated. Qatar LNG further impaired. | Re-stress all GCC LOIs at IMF 1.1%. Hold M&A until Q2 prints. |
| Specialty inputs Semis · LNG · Fertilizer | Helium/xenon compress over 3–6 months. Qatar LNG restores. | Helium +180%, xenon +220% remain structural. Physical normalisation ≥8 weeks post any deal. | Helium shortage acute. TSMC Q3 output risk. Semiconductor supply chain fractures. | Lock alternative helium/xenon now. No Hormuz normalcy before Q3. |
| European operations Mfg · Airlines · Chemicals | EU natgas retreats. European airlines fuel cost moderates. | EU natgas structurally elevated. LH/IAG/AF-KLM cancellation risk materialises Q2. German GDP 0.5%. | EU natgas doubles. Germany in technical recession. ECB stagflation constraint. | Model EU ops at $85–100/bbl Brent floor. Begin contingency jet fuel routing now. |
| Capital markets / M&A Banks · PE · GCC M&A | M&A pipeline unlocks. IPO window reopens H2. GCC infra deals proceed. | VIX 18–24 keeps risk premiums elevated. Q1 record bank trading ($40B, 5 majors). PE deployment constrained. | M&A freezes. SPX −15–20%. Credit provisions spike. IPO window closes entirely. | Hold FY27 capex and GCC M&A until Q2 earnings (July). |
| — Iran Attribution — | — Total Return — | — Weekly path Δ% — | — NTM P/E — | — Q1'26 EPS Rev. — | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Industry (GICS L3) | Industry Group | % war | Materiality | Mar 31 | Apr 28 | Signal | W1–3 | W4–5 | W7+(blk) | Feb 27 | Apr 28 | Δ% | Direction | Δ$ est |
| Exposure type | A · Peace (~5%) | B · Stalemate (~37%) base | C · Escalation (~58%) — LEADING | Structural action |
|---|---|---|---|---|
| Energy-intensive ops Airlines · Chemicals · Shipping | Fuel normalises to $72–78 WTI by Q3 (4–8 week physical lag). Deferred hedges vindicated. | WTI $85–95 structural floor through FY27. Budget from physical (~$150), not futures (~$95). 500M+ barrels already lost. | WTI $125+. Airline multi-quarter losses. Chemical margin collapse. Goldman recession >65%. | Lock 6–12mo Brent hedge at $95–100 NOW. Physical ~$150 = futures temporarily suppressed. |
| GCC revenue exposure >15% revenue from KSA/UAE/Qatar | GCC capex recovers H2. Vision 2030 re-accelerates. | IMF MENA 3.2%→1.1%. Do not assume pre-war GCC trajectory. | Aramco infrastructure risk reactivated. Qatar LNG further impaired. | Re-stress all GCC LOIs at IMF 1.1%. Hold M&A until Q2 prints. |
| Specialty inputs Semis · LNG · Fertilizer | Helium/xenon compress over 3–6 months. Qatar LNG restores. | Helium +180%, xenon +220% remain structural. Physical normalisation ≥8 weeks post any deal. | Helium shortage acute. TSMC Q3 output risk. Semiconductor supply chain fractures. | Lock alternative helium/xenon now. No Hormuz normalcy before Q3. |
| European operations Mfg · Airlines · Chemicals | EU natgas retreats. European airlines fuel cost moderates. | EU natgas structurally elevated. LH/IAG/AF-KLM cancellation risk materialises Q2. German GDP 0.5%. | EU natgas doubles. Germany in technical recession. ECB stagflation constraint. | Model EU ops at $85–100/bbl Brent floor. Begin contingency jet fuel routing now. |
| Capital markets / M&A Banks · PE · GCC M&A | M&A pipeline unlocks. IPO window reopens H2. GCC infra deals proceed. | VIX 18–24 keeps risk premiums elevated. Q1 record bank trading ($40B, 5 majors). PE deployment constrained. | M&A freezes. SPX −15–20%. Credit provisions spike. IPO window closes entirely. | Hold FY27 capex and GCC M&A until Q2 earnings (July). |
| Company | Ticker | Sector | Call date | Iran mentions | Guidance action | Framing type | Primary impact channel |
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