Skip to main content

One River Asset Management, LLC

Registered adviser
Location
STAMFORD, CT
Portfolio Value
Small $116,523,326
Diversification
Diversified
Filing Date
Global Rank
#5,056 / 8,814 ▼ 13 · as of Jun 2026
Top Industry
Semiconductors 19.6%
Period ended 22 days ago
Filed Oct 21, 2026 · 1d
16 quarters · since Dec 2022

Regulatory profile

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

Holder type
Registered adviser
Form ADV roster, Oct 1, 2026
Form ADV adviser
CRD 167835
Roster of Oct 1, 2026
Regulatory AUM
$2,386,106,000
Main clients
Pooled investment vehicles (73% of AUM)
Private funds
10 funds · Hedge funds
Focus by fund count, roster of Oct 1, 2026
$1,673,197,000 gross assets
LEI
549300KBHAKPOTW1D008
Private funds on Schedule D 7.B.(1)
As filed Jun 26, 2024; SEC's bulk Form ADV archive ends with 2024 filings.
$2,678,181,122 gross assets in 11 funds Hedge funds $2,678,181,122 (11)
Form ADV history
Monthly rosters from Dec 2019; each row is a run with the same figures, newest first.
Rosters Regulatory AUM Main clients
Apr 2026 to Oct 2026 $2,386,106,000 Pooled investment vehicles (73%)
Apr 2025 to Mar 2026 $3,183,085,000 Pooled investment vehicles (68%)
Jul 2024 to Mar 2025 $4,030,196,000 Pooled investment vehicles (70%)
Apr 2024 to Jun 2024 $4,030,196,000 Pooled investment vehicles (70%)
Jul 2023 to Mar 2024 $2,548,165,000 Pooled investment vehicles (82%)
May 2023 to Jun 2023 $2,548,165,000 Pooled investment vehicles (82%)
6 earlier changes not shown.

Portfolio style

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

Style
Concentrated
The top 10 positions are 80.2% of the book (60%+)
Turnover
High turnover
134.7% over the last four quarters (100%+)
Horizon
Short horizon
Value-weighted holding period 2.2 quarters (under 4)

Closest benchmark: the S&P 500 as of 2026-06-30, active share 80.5%; sector active share 52.0% against the combined 13F book's sector weights.

Over time 15 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.

View clone backtest

Portfolio Concentration

74 tracked positions · as of Sep 30, 2026 · Δ vs Jun 30, 2026
Top Position
27.7%
+9.2 pts
Top 5
61.0%
+21.9 pts
Top 10
74.3%
+21.6 pts
HHI
1,259
Dec 2023 → Sep 2026 · range 336 – 2,011
Diversified+727

Portfolio Trend

16 quarters · across all stocks

Sector Breakdown

As of Sep 30, 2026
Sector % Portfolio Value
Unclassified 50.3% $58,583,454
Technology 22.7% $26,482,056
Communication Services 7.3% $8,485,366
Financial Services 4.6% $5,331,530
Healthcare 4.0% $4,683,551
Industrials 3.2% $3,673,917
Consumer Defensive 3.0% $3,496,852
Consumer Cyclical 2.9% $3,387,753
Energy 1.3% $1,463,431
Basic Materials 0.5% $561,036
Utilities 0.3% $328,332
Real Estate 0.0% $46,048

Last Quarter's Activity

Export CSV
Sep 30, 2026 vs Jun 30, 2026

Added To

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

Trimmed

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

New Positions

Positions the filer opened this quarter
17 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
25 positions
Ticker Shares Value Open
— 7,270 $177,896

Portfolio Positions

Export CSV View 13F filing
74 tracked positions · $116,523,326 total · filing declares 183 positions · $116,523,351 · as of Sep 30, 2026
Showing 1–50 of 74 positions by value · page 1 of 2
Ticker Company Shares Value (USD) % of Portfolio History

Showing the top 50 of 74 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.