Back to Blog
Galen Guan

Daily Briefing · 2026-09-29: Bond Storm Meets the AI Buyback Wave

📰 Daily Briefing · 2026-09-29 (Tuesday)

🌐 Politics · Geopolitics

  • US-Iran talks stay deadlocked, with mixed signals from Washington — After rejecting Iran's peace proposal on Saturday, Trump met Iranian counterparts through mediators on Monday and signaled openness to sanctions relief if "concrete progress" is made on the nuclear file. Iranian officials, however, are reportedly pessimistic about a deal before the US midterms, and an Iranian lawmaker said parliament is weighing a bill to withdraw from the Non-Proliferation Treaty. Sources also dismissed reports of Iranian flexibility as inaccurate. The standoff was the day's core geopolitical driver, pushing oil and Treasury yields higher; the gap between the White House's softer tone and Tehran's hardening posture is the thing to watch. CLS · Sina Finance
  • Tech CEOs head to the White House AI lunch on Tuesday — Anthropic CEO Dario Amodei, Meta's Mark Zuckerberg, Alphabet's Sundar Pichai, Nvidia's Jensen Huang, and OpenAI president Greg Brockman are expected at Tuesday's lunch with President Trump and Speaker Mike Johnson. The White House will use the all-day event to launch a new federal information portal, with panels on AI, energy, and space. Amodei had a private dinner with Trump on Sunday; the gathering gives tech leaders another chance to ease tensions with the administration at a moment when AI safety practices are under intense scrutiny. Sina Finance
  • Trump announces $15B steel plant plan — Trump announced Monday that Mesabi Metallics plans to invest roughly $15 billion in Iowa to build the largest steel mill of its kind in US history, targeting production by 2030 using ore mined in Minnesota's Iron Range. The announcement lands weeks before the November midterms, with manufacturing investment serving as an obvious political narrative as economic approval ratings sag. Sina Finance
  • FAA delays Boeing 737 Max 10 certification over software issue — FAA Administrator Bryan Bedford said the agency is still evaluating a software fault Boeing itself flagged last month — one that may affect certain landing procedures — and is holding off on Max 10 certification until it's cleared. Boeing closed down nearly 7%. CEO Kelly Ortberg had told investors earlier this month that approval was expected "soon," making this a real setback for the flagship program's delivery timeline. Sina Finance

💰 Finance · Markets

Snapshot (2026-09-29 close/intraday): S&P 500 7,683.69 (-0.77%) · Nasdaq 26,820.38 (-0.92%) · Dow 51,481.51 (-0.67%) · US 10Y intraday high 5.274% (highest since 2007) · US 30Y intraday high 5.581% (highest since 2002) · Shanghai Composite 3,823.62 (-1.67%) · CSI 300 4,340.75 (-2.22%) · USDCNY 6.7101

  • Bond storm continues: 10-year yield hits highest since 2007 — The US-Iran deadlock lifted oil and Treasury yields, with the 10-year touching 5.274% intraday, a 19-year high, and the 30-year reaching 5.581%, a record back to 2002. European debt sold off in sympathy; Germany's 30-year Bund had its worst day since September 9. Higher yields compressed equity valuations and drove the broad index decline. Fed Governor Lisa Cook's same-day remarks — AI won't offset near-term inflation, and the job market can absorb another hike — reinforced the higher-for-longer rate path. CLS
  • Nvidia adds $150B to its buyback — the largest single authorization increase ever — Nvidia's board approved a $150 billion expansion of its repurchase authorization, lifting remaining capacity to $235 billion through fiscal 2028, eclipsing Apple's $110B plan from May 2024. It's the second big expansion in about four months (after $80B). The stock rose ~1.68% Monday, one of the few bright spots in a down market. AI-driven cash flow is increasingly being converted into shareholder returns; the countervailing force to rising yields is now a genuine tug-of-war for equity pricing. CLS
  • China A-shares sell off broadly; Shenzhen Composite hits a year-to-date low — The Shanghai Composite fell 1.67% to 3,823.62, the Shenzhen Component dropped 3.44% to a YTD low, and the ChiNext lost 4.53%. More than 4,500 stocks declined, over 100 fell more than 9%, and turnover expanded to RMB 1.7T. Computing hardware (CPO, fiberglass, MLCC) and precious metals led losses; auto OEMs, oil services, and real estate services gained. The State Council's Standing Committee pledged stronger counter-cyclical macro policy and "a batch of incremental policies" — the scale of that response is the key variable ahead. CLS Daily Wrap · CLS Focus Review
  • Credit and commodities: high-yield issuance surges, copper seen higher — Goldman Sachs warned that surging high-yield debt supply is straining market absorption; the dollar firmed with yields and oil; Deutsche Bank argued supply shortages could push copper up more than 50% within six months. Credit spreads and industrial metals are useful early indicators for adjudicating between "overheating" and "stagflation" narratives. Sina — High Yield · Sina — Copper

🚀 Tech · AI

  • AMD to acquire Fei-Fei Li's World Labs for $8.2B in all stock — AMD announced Monday an all-stock, ~$8.2B deal for World Labs, the spatial-intelligence startup founded by AI pioneer Fei-Fei Li that builds "world models" capable of generating and reconstructing 3D environments. The deal is expected to close by year-end, pending regulatory approval. Lisa Su's framing — "the more you understand end-to-end, the better the systems you can build" — signals AMD is buying research talent and first-hand insight into spatial AI to inform its hardware roadmap. It's both another ecosystem move against Nvidia and a landmark acquisition in the world-model startup space. Sina Finance
  • Anthropic ships the cheaper Sonnet 5.5 — Anthropic released Sonnet 5.5 on Monday, pitched as faster and more cost-effective, with claimed gains in coding, well-scoped task execution, and polished documents/slides/spreadsheets. It lands less than a week after the pricier Opus 5.5, and the cheapest sibling, Haiku 5.5, is coming soon. The product ladder (Opus for judgment, Sonnet for value, Haiku for cost) targets cost-sensitive customers running routine execution workloads — a notably fast shipping cadence for a CEO who has publicly urged the industry to slow down. Sina Finance
  • OpenAI tried to invest in Hugging Face before Nvidia's $13B takeover — According to people familiar with the matter, OpenAI attempted a $100M investment in Hugging Face before Nvidia agreed to acquire the platform for ~$13B (announced September 3). The talks, which began after HF's July security incident, would have made HF a distribution channel for OpenAI's Broadcom-built custom chip, codenamed Jalapeño; they broke down early. The disclosure fills in a shadow storyline of the infrastructure consolidation race: open-source model distribution platforms have become strategic chip assets, and the losing bidder is now building its own channel. Sina Finance
  • SpaceX Starship reaches Earth orbit, deploys 26 Starlink satellites — The latest Starship test flight successfully reached orbit and completed deployment of 26 Starlink satellites, advancing both rapid reusability and on-orbit batch deployment. Sina Finance

🧠 Thinkers · Views & Research

  • Michael Burry: the AI bubble may burst sooner than expected — The "Big Short" investor said Monday he's pulling forward his bearish timeline, converting short positions in key AI names (Micron, Nebius) into put options — Micron into June-expiry puts struck around $500 — because unusually tight VIX pricing makes the options relatively cheap leverage on a shorter horizon. Moving from stock shorts to options is an upgrade from "right on direction" to a bet with a deadline: if the AI trade runs past his window, losses compound instead. The position structure itself is worth studying. Sina Finance
  • Fed Governor Lisa Cook: AI won't rescue near-term inflation — Cook argued AI's productivity gains "will not arrive in time" to counter inflation pressure building later this year; data-center competition for energy and construction labor has already pushed power and water costs up ~5% over the past year, while only a fraction of the $2T in committed capex has been spent. She defended this month's rate hike and said the labor market can withstand more — formally folding the "AI capex → input costs → inflation" transmission chain into Fed policymaking. Sina Finance
  • Yu Chengdong: HarmonyOS Intelligent Mobility shifts focus to the "Four Realms" — At the Luxeed RX launch, Huawei's Yu Chengdong publicly addressed the partnership restructuring for the first time: existing AITO (Wenjie) owner rights are unaffected; the brand will now be led by Seres with Huawei participating as an enabler, while Huawei devotes more resources to the other four brands. His second public response in two weeks. CLS

📝 New Blogs (24h)

  • Anthropic Engineering · Designing AI resistant technical evaluations — Confirmed updated 2026-09-28: a new post on designing evaluations that resist AI "cheating" — keeping benchmarks trustworthy when models can memorize or game them. It extends Anthropic's recent eval-awareness work (see also eval-awareness-browsecomp) and is required reading for anyone building model benchmarks this cycle. Original
  • No updates in the past 24h from the other target blogs (Lilian Weng, Cognition, Manus, Baoyu, DeepSeek, Qwen, Chip Huyen); HuggingFace Blog was unreachable this run (HTTP 000) — reported as not retrieved. The 2026-09-25 date on Cognition's listing page points to a Sept 22 post and falls outside the window.

⭐ GitHub Trending

(3-day window since 2026-09-25, sorted by stars, spam filtered)

  • dzhng/jevgrep (TypeScript · ⭐1,372) — "Find code by asking what it does": a CLI for coding agents that uses the Jev model to discover relevant files and source semantically instead of via regex. Attacks the "which file do I even read?" bottleneck in large repos — a representative of the agent-tooling shift from grep to semantic retrieval; worth wiring into agent workflows. repo
  • feitangyuan/onetake (Python · ⭐814) — Generates "one-take" motion films where every beat grows out of the previous one in a single continuous camera move, rather than slide-style cuts. A structurally new take on AI video generation continuity, directly relevant to shot-to-shot coherence in video pipelines. repo
  • yihui-dev/awesome-opus5-5-videos (⭐692) — A growing collection of viral videos made with Claude Opus 5.5, each with the prompt behind it. repo
  • lemomo-ai/lemo-opuscar (JavaScript · ⭐512) — 39 film styles, each a reusable style prompt plus a short film made entirely in code by Claude Opus 5.5. repo
  • kaankiziltug/logo-design-skill (HTML · ⭐403) — A comprehensive logo-design skill for Claude, Gemini CLI, Codex and other AI agents: principles, process, SVG output. Agent skills keep fragmenting into verticals; its skill structure is a useful comparison point for organizing custom skills. repo
  • Rieranthony/product-film-skill (TypeScript · ⭐356) — A product-film generation skill (no description; from naming and ecosystem position, presumably AI-code-driven video generation). repo

Filtered out as low-quality/off-topic: Discord-Booster-Server (Discord boost bot), UCashier-USDT-Payment (crypto payments), xikhar/spiderbench (no description), inkwave (Splatoon-style browser game).

🔭 GitHub Watch · Watchlist

(github-watch pipeline run of 2026-09-29)

  • 8 watched repos updated (1 commit each): Comfy-Org/ComfyUI, crewAIInc/crewAI, huggingface/diffusers, hypit-ai/hypit, langchain-ai/langgraph, langfuse/langfuse, openai/openai-agents-python, promptfoo/promptfoo. The overnight board review concluded "no actionable adoption today" (that summary task is excluded from briefing items by rule): ComfyUI #16626 is a YuE2 audio AR sampling speedup (no matching scenario), diffusers #14872 fixes flattened CLIP text encoder LoRA loading (the video pipeline uses ComfyUI's own loaders, not diffusers), and langgraph #8542 is a Docker deployment fix — none directly adoptable. Change list · Source: github-watch pipeline / ShuJieTai board

References