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主要な機関投資家マネージャーが開示した13Fポジション、手作業でキュレーションされ、QuantAbundanciaのバブルタクソノミーと相互参照。新しい提出のたびに更新。
Warren Buffett
Buffett & Munger's holding company. The most-watched 13F on Wall Street — concentrated, slow-rotating, with cash reserves above $300B as of 2025. Equity book is dominated by AAPL, BAC, AXP, KO, and a long energy leg (CVX + OXY).
Bill Ackman
Concentrated activist book — typically 8-12 positions, long-biased, run with a hedged-call options overlay. Portfolio is famously disclosed in real time on Twitter.
Michael Burry
"The Big Short" Burry's personal book. Q3 2025 13F-HR (filed 2025-11-03) shows a sharp anti-AI macro bet: long PUTS on PLTR ($912M notional, 5M contracts) and NVDA ($187M, 1M contracts) make up 80% of the $1.38B disclosed. Long calls on PFE ($153M) + HAL ($62M) round out the bullish leg. The long-share sleeve is small ($68M total): MOH, LULU, SLM, and a Bruker 6.375% preferred — Burry rotates aggressively quarter to quarter.
Cathie Wood
High-conviction disruptive-innovation manager. Consolidated 13F across the ARKK family — concentrated in TSLA, COIN, ROKU, RBLX, HOOD, PLTR. Daily-disclosed at the ETF level; the 13F here is the rolled-up institutional view.
Chase Coleman
Tiger-cub style growth-tech long book. Public-equity portion of a much larger private/public hybrid platform. Concentrated in mega-cap tech (META, MSFT, GOOGL) plus a global growth tail (SE, SPOT).
David Einhorn
Long/short value manager. Best known for big short calls (Lehman 2008, GMO 2015) but the long book is a concentrated value portfolio — GRBK has been the largest position for years; recent quarters added BRKB and select healthcare/casino names.
Jensen Huang
NVIDIA's corporate strategic-investment book — every position ties to its AI-compute supply chain or downstream demand. Concentrated (5 holdings, $13.1B disclosed) with each name underlying a publicly-announced partnership: Intel (custom x86 CPUs via NVLink, Sept 2025 deal), CoreWeave (GPU cloud renter, pre-IPO stake), Synopsys (EDA tool partnership), Nokia (Q4 2025 5G/AI JV), Nebius (European compute capacity).
Nancy Pelosi (US House)
Aggregated equity exposure of US Representative Nancy Pelosi (D-CA), inferred from her continuous STOCK Act Periodic Transaction Reports (PTRs) and consolidated by Autopilot + Quiver Quantitative. Famously concentrated in tech mega-caps via long-dated call options (NVDA / AVGO / GOOGL LEAPs); aggregators count call options as their underlying shares so the weights here include both direct holdings and option-equivalent exposure. Snapshot dated 2026-05-02 — Pelosi trades frequently, so this goes stale fast.
Larry Fink
World's largest asset manager. Q4 2025 13F-HR discloses $5.92T across 4,513 unique issuers — every BLK-managed product with US-equity discretion (iShares ETFs, index mutual funds, active funds, SMAs). Top holdings closely mirror S&P 500 weights because passive index AUM dominates the book; this is not a stock-pick portfolio. Top 12 named single tickers sum to 33.5%; iShares Trust cross-holdings add another 2.6% ($156B across many self-held ETF classes); the remaining ~63.9% is the long tail of 4,500+ issuers.
Guy Spier
Guy Spier's Buffett-style value-investing partnership, run from Zurich since 1997. Author of "The Education of a Value Investor"; famous for the $650K charity lunch with Buffett (alongside Mohnish Pabrai, 2008). Textbook concentrated value book — 7 positions in Q4 2025, anchored by both Berkshire classes (~48.6% combined) and a tight basket of capital-light compounders (Mastercard, AmEx, Moody's, Ferrari, Daily Journal).
Leopold Aschenbrenner
Leopold Aschenbrenner's AI-supercycle hedge fund (Situational Awareness LP, San Francisco), launched late 2024 after the founder left OpenAI's Superalignment team. Aschenbrenner (25) wrote the canonical AGI-imminence essay "Situational Awareness: The Decade Ahead"; the book is the financial expression of that thesis. Q1 2026 13F-HR documents a complete tactical pivot: 42 positions, $13.68B total notional (2.5× the Q4 2025 book). The portfolio is now 62% SHORT via $8.46B in puts hitting the entire chip stack — SMH the basket itself ($2.04B), NVDA ($1.57B), AMD ($969M), AVGO ($1.01B), ORCL ($1.07B), ASML ($494M), plus straddles on MU and TSM. The long side held the AI-infrastructure-bottleneck thesis: Bloom Energy ($879M anchor + $55M calls), SanDisk tripled to $1.11B aggregate (long+calls), CoreWeave ~$700M, all nine BTC-miners-to-HPC names retained (CORZ $389M, IREN $401M, APLD $320M, RIOT $142M, CLSK $104M, BITF, BTDR, HIVE, CIFR-out). Three new names this quarter: SHAZ (SharonAI), TE (T1 Energy), HIVE. Activist tier: CORZ 13D filed 2025-08-19 at 5.8%, amended 2025-10-14 to 9.4% — position survives at $389M, signal of conviction in the BTC-miner-to-GPU-datacenter conversion. The pivot reads as "the bottleneck has moved off the chip and onto the power plug": short the picks-and-shovels that the market has already priced for an AGI buildout, long the infrastructure (power generation, datacenter colo housed in ex-miner shells, NAND/HBM) that hasn't.
Donald J. Trump (US President, 47th)
Disclosed trading account of US President Donald J. Trump (47th). Surfaces the holdings reconstruction implied by two OGE Form 278-T Periodic Transaction Reports filed 2026-05-14 → 2026-05-15, covering 3,711 securities transactions executed January 6 → March 30, 2026 with a cumulative reported transaction value of $220M–$750M (OGE discloses bands, not exact dollar amounts). The Q1 buy concentration is overwhelmingly AI-supercycle: semiconductors (NVDA, AVGO, TXN, KLAC, CDNS, SNPS, AMD, MU, AMKR, INTC), data center hardware (DELL, JBL, ORCL), enterprise SaaS down 30-45% YTD as buy-the-dip (ADBE, NOW, WDAY, CRM, FIS), and crypto-linked equities (COIN with 9 buys, MARA, MSTR/Strategy). Three Mag-7 names sold in size on Feb 10 in the $5M–$25M band (MSFT, AMZN, META) while AAPL was net-bought (8 buys vs 1 sell). The account also liquidated $15M of VIG and material slugs of SPY/VOO/IVV in January, indicating a rotation out of broad-market ETF beta into single-name tech. This is the disclosed trading account only — it excludes real estate, the TMTG/DJT stake, branded businesses, and other reportable assets carried on the annual Form 278. Multiple outlets (NBC, CNBC, Euronews) have noted the 3,711-transactions-in-11-weeks cadence does not match the President's historical behavior; the account is widely understood to be discretionary-managed by an outside advisor. The holdings list is sorted here by YTD performance (descending) to mirror the @Speculator_io reconstruction image; OGE 278-T does not publish point-in-time weights so weight_pct is left NULL.
Real EDGAR-sourced filings refresh weekly via collectors/sec_13f.py (Sundays 05:13 UTC). Funds tagged editorial are bootstrap approximations from press coverage and get superseded by precise EDGAR data on the next collector run.
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