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Decagon Asset Management LLP

Location
LONDON, X0
Portfolio Value
Small $504,939,624
Diversification
Diversified
Filing Date
Global Rank
#3,820 / 8,820 ▲ 511
Top Industry
Shell Companies 44.3%
3Y Alpha vs SPY
-24.2%
Period ended 4 months ago
Filed Aug 14, 2026 · 3mo
7 quarters · since Dec 2024

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type
Unknown

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.

Style
Concentrated
The top 10 positions are 65.0% of the book (60%+)
Turnover
High turnover
170.2% over the last four quarters (100%+)
Horizon
Short horizon
Value-weighted holding period 1.7 quarters (under 4)

Closest benchmark: the S&P MidCap 400 as of 2026-06-30, active share 99.0%; sector active share 62.3% against the combined 13F book's sector weights.

Over time 7 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

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Portfolio Concentration

79 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
11.5%
−5.7 pts
Top 5
49.7%
−3.7 pts
Top 10
64.1%
−8.6 pts
HHI
600
Dec 2024 → Jun 2026 · range 600 – 3,168
Diversified−209

Portfolio Trend

7 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Financial Services 44.3% $223,580,679
Healthcare 27.6% $139,274,753
Industrials 14.2% $71,815,040
Communication Services 13.5% $68,325,389
Technology 0.2% $1,242,300
Unclassified 0.1% $701,463

Last Quarter's Activity

Export CSV
Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased
24 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
6 positions
Ticker Δ Shares Shares Value Open

New Positions

Positions the filer opened this quarter
25 positions
Ticker Shares Value Open
— 2,715,536 $44,833,499
— 334,030 $701,463

Sold Out

Positions the filer fully exited
16 positions
Ticker Shares Value Open
— 133,559 $27,228,673
— 1,139,167 $26,941,300
— 275,000 $20,787,250
— 2,924,720 $20,385,299
— 52,856 $10,927,978
— 69,665 $18,113

Portfolio Positions

Export CSV View 13F filing
79 tracked positions · $504,939,624 total · filing declares 104 positions · $524,724,011 · as of Jun 30, 2026
Showing 1–50 of 79 positions by value · page 1 of 2
Ticker Company Shares Value (USD) % of Portfolio History
2,715,536 $44,833,499 8.88%
PUT
523,200 $13,948,512 2.76%
334,030 $701,463 0.14%

Showing the top 50 of 79 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.