Contrarian Corpus
Claude Code skill · evidence-backed

Build contrarian arguments that move capital.

adversarial-research is a Claude Code skill that helps authors construct activist campaigns, short theses and persuasive investment memos — following the rhetorical and structural patterns validated across 670 real-world decks from Pershing Square, Elliott, Starboard, Muddy Waters, Hindenburg and 30+ other top funds.

The corpus below is the skill's training and reference material — every pattern it encodes is anchored in documented exemplars you can inspect.

670 Documents
22,572 Pages analyzed
3,158 Slides indexed
31 Funds
404 Targets

Rhetorical patterns

Filter the corpus by the specific argumentation techniques used.

See the full patterns hub →

Top-rated specimens

Decks scoring 4+ on narrative and visual craft — the library's masterclass.

Carl Icahn 2025-04-28

Phillips 66 PSX

Phillips 66's conglomerate structure and failed governance have cost shareholders 97% vs. peers; spinning Midstream and reconstituting the board targets $183/share — +75% upside.

N5 V5 C5
Elliott Management 2019-03-01

Telecom Italia TIT.MI

Vivendi's control of TIM destroyed 54% of shareholder value

N5 V5 C5
Elliott Management 2017-04-11

Arconic Inc. ARNC

Arconic shareholders lost ~70% of their value; CEO Kleinfeld is one of the worst-performing tenured CEOs in the U.S.

N5 V5 C5
Greenlight Capital 2024-10-23

Peloton Interactive PTON

Peloton's overlooked subscription business — 68% gross margins, 1.5% churn — can deliver $400-500M EBITDA once costs are right-sized, implying a $7.50-$31.50 share price versus $5.48 today.

N5 V4 C5
Pershing Square 2012-02-06

Canadian Pacific Railway CP

CP has the worst operating ratio of any Class I railroad while closest peer CN has the best

N5 V4 C5
Land & Buildings 2026-04-01

Welltower Inc. WELL

Welltower's 10-year executive program could pay CEO Mitra up to $3 billion while incentivizing dilutive growth at a 144% NAV premium — shareholders should sell WELL and rotate into Ventas or AHR.

N5 V4 C4
Elliott Management 2026-01-27

Toyota Industries Corporation 6201

Toyota Industries' ¥18,800 take-private undervalues the company by 39%; shareholders should reject the tender and pursue a Standalone Plan worth >¥40,000 per share.

N5 V4 C4
Elliott Management 2026-01-27

Toyota Industries Corporation 6201.T

Toyota Real Estate's ¥18,800 TOB undervalues Toyota Industries by 39% versus NAV and 85% on core business; shareholders should refuse to tender and pursue a standalone plan instead.

N5 V4 C4
Elliott Management 2026-01-18

Toyota Industries Corporation 6201

Toyota Fudosan's ¥18,800 squeeze-out of Toyota Industries undervalues NAV by ~40%; reject the TOB and back Elliott's Standalone Plan targeting >¥40,000 per share by 2028.

N5 V4 C4
Carl Icahn 2025-05-12

Phillips 66 PSX

Phillips 66's refining-plus-midstream conglomerate trades at a 6.1x discount to an 8.1x SOTP; breaking it up and replacing complacent directors unlocks ~75% upside to $183.

N5 V4 C4

Recent additions

Latest extractions from the pipeline.

2026-04-01
Land & Buildings
Welltower Inc. WELL
Welltower's 10-year executive program could pay CEO Mitra up to $3 billion while incentivizing dilutive growth at a 144% NAV premium — shareholders should sell WELL and rotate into Ventas or AHR.
N5 V4
2026-04-01
Land & Buildings
Multiple REITs (21 underperformers)
Land & Buildings names 21 REIT CEOs who trail their own proxy peers on 1-, 3-, and 5-year TSR yet collect multi-million packages — shareholders should vote against say-on-pay and the comp committees.
N3 V3
2026-03-30
Muddy Waters
SoFi Technologies SOFI
SOFI booked a $312M JPMorgan borrowing as a loan sale, inflating ~$1B of EBITDA and enriching management while shareholders absorb ~15% annual dilution.
N4 V3
2026-03-22
Muddy Waters
SoFi Technologies SOFI
SOFI's silence on 11 specific accounting questions confirms Muddy Waters' view that 2025 Adjusted EBITDA is inflated ~90% via mislabeled financings, hidden debt, and misstated risk retention.
N4 V2
2026-03-17
Muddy Waters
SoFi Technologies, Inc. SOFI
SoFi's $1,054M reported 2025 EBITDA is ~90% inflated via manipulated charge-off rates, off-balance-sheet VIEs and subsidized seller-financed sales that feed CEO Noto's comp — real EBITDA is ~$103M.
N5 V3
2026-03-10
Starboard Value
CarMax Inc. KMX
CarMax's omnichannel flywheel is intact but stalled; new CEO Keith Barr can unlock value by fixing digital conversion, reconditioning costs, dynamic pricing, and SG&A discipline.
N4 V1
2026-03-08
Starboard Value
Lamb Weston Holdings, Inc. LW
Lamb Weston's recovery is real but insufficient; doubling cost cuts to $500M, targeting 4.5% SG&A, and divesting APAC can restore 25% EBITDA margins at a 6.7x multiple.
N3 V2
2026-03-01
Citron Research
Credit Acceptance Corporation CACC
Citron reverses course on CACC: with CFPB/NYAG overhang resolved Feb 13 2026, 61% of float retired, and an Amazon-bred CEO, fair value is $714 (16x 2026E EPS of $44.62).
N4 V3
2026-02-18
Starboard Value
Riot Platforms, Inc. RIOT
Riot's 1.7GW of powered Texas sites could generate $1.6bn of AI/HPC EBITDA and drive shares to $23-$53 if management urgently signs more hyperscaler deals like the AMD proof-of-concept.
N3 V2
2026-02-17
Starboard Value
Tripadvisor, Inc. TRIP
Tripadvisor's Board has tolerated ~50% value destruction under CEO Goldberg; Starboard demands a sale of the entire company or will run a majority-slate proxy fight at the 2026 meeting.
N4 V2
2026-02-11
Pershing Square
Pershing Square Holdings PSH.L
PSH NAV grew 20.9% and TSR 33.9% in 2025, beating S&P, FTSE 100 and HFRX Activist indices
N3 V4
2026-01-27
Elliott Management
Toyota Industries Corporation 6201.T
Toyota Real Estate's ¥18,800 TOB undervalues Toyota Industries by 39% versus NAV and 85% on core business; shareholders should refuse to tender and pursue a standalone plan instead.
N5 V4

By fund

Fund Docs Active
Muddy Waters short seller 133 4.0 1.8 2010—2026
Elliott Management activist 101 3.6 3.2 2011—2026
Starboard Value activist 95 3.8 2.6 2012—2026
Pershing Square activist 73 3.6 3.0 2005—2026
Trian Partners activist 32 3.9 3.1 2011—2025
Engine Capital activist 26 3.3 1.7 2022—2025
Land & Buildings activist 24 3.2 2.5 2015—2026
Kerrisdale Capital short seller 20 3.9 2.8 2014—2025
Greenlight Capital activist 18 4.8 2.6 2002—2024
Bluebell Capital activist 18 3.1 2.1 2023—2024
Citron Research short seller 18 3.7 2.2 2015—2026
Oasis Management activist 17 3.5 2.4 2013—2025
Carl Icahn activist 15 4.0 2.9 2006—2025
Ancora activist 13 3.8 3.1 2017—2025
TCI Fund activist 12 3.1 2.0 2019—2023
Sandell activist 9 3.9 2.9 2011—2016
Third Point activist 8 4.2 3.0 2011—2022
Marcato activist 8 3.9 3.4 2012—2017
Palliser Capital activist 8 4.5 3.4 2022—2025
JANA Partners activist 4 3.2 2.5 2007—2013

Distribution by year