← Weekly

2026-W19

Kalshi, Spectacles, and Stripe Sessions 2026 — agentic commerce gets its protocols

2026-05-04 → 2026-05-10

Tarek Mansour on building Kalshi against the regulators, Evan Spiegel on Spectacles and the post-feed internet, and the Stripe Sessions 2026 keynote with MPP, UCP, Stripe Database, Treasury, and the agentic commerce stack.

TL;DR · the week in 60 points

12 items

May 5Bloomberg

Money Stuff (Matt Levine): the Avis short squeeze — Pentwater + SRS owned 108% of the float via swaps, Section 16(b) caught a different fund

  • Avis: $99 (Mar 20) → $713 (Apr 21) → $182. Pentwater + SRS at 108% economic ownership via cash-settled swaps.
  • Total return swaps post-Archegos: still off-balance-sheet for the fund, banks hedge by buying the shares themselves.
  • Section 16(b) matches lowest-buy with highest-sell — statutory profit decouples from actual P&L.
  • Pentwater dodged 16(b) on a parallel fund; sold 4.3M shares for $1.75B in proceeds.
  • The arb idea: short interest >30% + creeping past the 16(b) disclosure threshold = self-reinforcing squeeze, no dilution to existing holders.
May 5SemiAnalysis

SemiAnalysis: AI Value Capture — the shift to model labs

  • Anthropic ARR $9B → $44B+; inference GM 38% → 70%+. Labs are now the value capture layer.
  • Opus blended price ~$0.99/MTok on agentic workloads (300:1 input:output, 90%+ cache hits).
  • GB300 → VR NVL72 capex/W: $37.4 → $38.1 — flat despite 2x perf/W. Nvidia is intentionally under-pricing.
  • SOCAMM2 = socketed, repriceable memory at ~60% GM. Hidden pricing lever for Rubin.
  • Two moats keep lab margins: real frontier quality gap (Kimi K2.6 at $0.95/$4 barely dents Opus) + structural compute scarcity.
May 4Bloomberg

Money Stuff (Matt Levine): GameStop Doesn't Have Enough Stock — the $56B eBay bid

  • GameStop ($12B) bids $56B for eBay ($46B) at $125/share — half cash / half stock.
  • $8B GME cash + $20B TD-Bank LBO debt secured against eBay + $28B new GME stock = not enough authorized shares (1B cap, 448M used).
  • Ryan Cohen pay package: 171.5M options @ $20.66, ~$35B payout at $100B mkt cap + $10B cumulative EBITDA.
  • Moonshot-pay arithmetic favours M&A: growing $60B → $150B is easier than $10B → $100B even with adjustment clauses.
  • Social casinos: $11B+ revenue in 2025, whales spending >$1M — "promise nothing, get money, deliver nothing."
May 5Bloomberg

Money Stuff (Matt Levine): Investment Banking Without a License — Morgan Stanley Budapest + sports-betting jurisdiction trap

  • Morgan Stanley Budapest: FINRA investigating front-office IB work done by unlicensed analysts, 2024 memo acknowledged the gap.
  • Anthropic shipped 10 financial-services AI agents — will an AI banker need Series 79?
  • CFTC-Kalshi logic implies state-licensed sportsbooks are illegal off-exchange swaps — states lose jurisdiction over sports gambling entirely.
  • James Vorley sues Deutsche Bank for £12M, alleging senior traders taught him spoofing on-desk.
  • Musk's 2022 Twitter 13D settled at $1.5M (admit-nothing); SEC originally sought $200M+. ~$150M shareholder loss → 1% tax.
May 6Bloomberg

Money Stuff (Matt Levine): ChatGPT Can't Pick the Stocks — Alpha Arena, daily private prices, TD3C

  • Nof1 Alpha Arena: Claude/Gemini/GPT/Grok + 4 others, $10K each → only 6 of 32 results profitable, portfolio lost ~⅓.
  • WSJ's ChatGPT picks (Lockheed et al.) gained ~5.5% vs S&P 8% — chatbot optimises for engagement, not portfolio outcome.
  • Apollo: >$830B credit assets on daily pricing by end of September; 100% of credit business daily-priced.
  • Sklarov fake-margin-loan: collateral worth 3× the loan immediately sold; Salinas Pliego the named victim.
  • TD3C shipping benchmark spiked $40-100K → $600K/day after Ras Tanura route went idle; Mercuria refusing to pay; Libor parallel.
May 7Bloomberg

Money Stuff (Matt Levine): Sell on eBay to Buy eBay — Blue Owl ouroboros, HSBC $400M, Aave run

  • Cohen sold personal items on eBay (including a pair of socks) to 'finance' the $56B GME-eBay bid; eBay suspended the account.
  • 30 lawyers/traders indicted in Boston M&A insider ring — Nourafchan (Yale Law 2011, Goodwin/Latham), Yadgarov coordinator, Zelle kickbacks 1–50%.
  • Blue Owl ouroboros: debut credit secondaries fund could buy back its own discounted BDC shares while Saba tenders for them.
  • HSBC $400M fraud charge: indirect MFS exposure via Apollo Atlas SP at 80% LTV — fake diversification, concentrated middle layer.
  • Aave run: $230M bad debt from KelpDAO hack, bailed out by Lubin/Sun/LayerZero/Mantle — 12-20 men keeping crypto alive.
May 4Uncapped

Uncapped (Jack Altman): Tarek Mansour on building Kalshi — hackathon → CFTC fight → landmark 2024 win

  • YC hackathon Oct 2018: judges said the idea was "not allowed in the US" — they won anyway.
  • CFTC approved Kalshi as a regulated exchange Nov 2020; Kalshi sued the government in 2023 over a blocked election market.
  • Landmark Oct 2024 ruling redefined gambling vs financial markets — Kalshi is a regulated exchange + clearing house.
  • Open book: users trade against each other, Kalshi takes a transaction fee — no house.
  • ~127 people, no managerial layers, self-organizing around the company's most critical problem at any time.
May 4Cheeky Pint

Cheeky Pint: Evan Spiegel on Spectacles, the post-feed internet, and AI-written code at Snap

  • Spectacles thesis: phones isolate, see-through glasses are social by default — opposite of VR headsets.
  • Snap built its own Linux-based OS to escape Android bloat at glasses weight.
  • >2/3 of new code at Snap is now AI-written.
  • Snapchat separates social (private messaging) from media (Discover) — sidesteps endless-feed incentives.
  • Snapchat+ at 25M subscribers; Norway was the first country to embrace Snap.
May 4Stripe Sessions

Stripe Sessions 2026 Keynote: Projects, Database, Checkout Studio, Treasury, Signals + MPP and UCP protocols

  • Stripe Projects: agents deploy services, DBs (Supabase), hosting (Vercel) programmatically.
  • Stripe Database = Postgres-shaped read API over your business data, queryable by agents.
  • Two new protocols: MPP (agent-to-agent payments via Link wallet) and UCP (cross-platform commerce standard).
  • Stripe Treasury: multicurrency, FDIC-insured US balances, payouts to 160 countries, stablecoin rails.
  • Public roadmap at stripe.com/roadmap through Q1 2027 — Meta, Amazon, Salesforce, Microsoft on UCP committee.
May 4GitHub

RTK (Rust Token Killer): CLI proxy that compresses dev-command output before it hits the LLM context

  • 13,454 commands run · 17.9M tokens saved (35.9%) on my Claude Code sessions.
  • Single Rust binary, zero deps, <10ms overhead — drop-in CLI proxy that compresses tool output.
  • Hook rewrites bash commands transparently (git status → rtk git status); the model only sees compressed output.
  • Best savings on lint (~98%), gh pr/issue calls (~99%), and curl-style fetches (~95–98%).
  • Works with Claude Code, Cursor, Gemini CLI, Aider, Codex, Windsurf, Cline.
May 4GitHub

context-mode: MCP sandbox + per-project SQLite that gives Claude Code session continuity (98% context reduction)

  • 98% context reduction on tool output (e.g., 315 KB → 5.4 KB) by sandboxing execution.
  • Per-project SQLite captures every meaningful event so /compact and --continue rebuild your working state automatically.
  • Registers PreToolUse / PostToolUse / PreCompact / SessionStart hooks + 11 MCP tools (6 sandbox, 5 meta).
  • Install via Claude Code: /plugin marketplace add mksglu/context-mode → /plugin install context-mode@context-mode.
  • Full continuity on Claude Code, Gemini CLI, VS Code Copilot, JetBrains Copilot — 14 platforms supported.
May 4GitHub

Compound Engineering plugin (Every): 37 skills + 51 agents — /ce-setup green across 7/7 tools

  • Every-built official plugin — 37 skills + 51 agents covering review, planning, ideation, design, debugging, docs.
  • Install: /plugin marketplace add EveryInc/compound-engineering-plugin → /plugin install compound-engineering.
  • /compound-engineering:ce-setup runs check-health and reports Plugin v3.4.1 · 7/7 tools · 1/1 skills green.
  • Tools provisioned: agent-browser, gh, jq, vhs, silicon, ffmpeg, ast-grep.
  • Same plugin already underpins many of the agents I delegate to in /skills.

Timeline · commits + curated notes

4 entries

  1. noteMoney Stuff daily log added for May 4–7 — GameStop/eBay bid, Morgan Stanley Budapest + sports-betting jurisdiction trap, ChatGPT-picks-the-stocks (Nof1 Alpha Arena + Apollo daily pricing), and the Blue Owl ouroboros + HSBC/Atlas SP + Aave run.
  2. noteTuesday reading log merged in — Avis short squeeze (Levine), SemiAnalysis AI value-capture flows, TBPN earnings quad-kill, two Stratechery posts, LATAM-payments and Stripe-crypto tweets.
  3. noteAdded 3 dev-tooling finds to built rail: RTK (token killer), context-mode (MCP sandbox + SQLite session continuity), Compound Engineering plugin v3.4.1.
  4. noteInitial publish — three watched entries (Kalshi, Spiegel, Stripe Sessions 2026 keynote) with anchored prose sections.