Hedge Fund

Arbiter Partners Capital Management LLC

New York, NY SEC Registered Investment Advisor Institutional CIK: 0001513193
13F Score ?
32
3Y · Top 10 · Mgr Wt
13F Score ?
19
7Y · Top 10 · Mgr Wt
S&P 500 ?
80
Benchmark
$175M
AUM
-21.92%
2026 Q1
+64.99%
1-Year Return
+71.55%
Top 10 Concentration
+15.37%
Turnover
-14.94%
AUM Change
Since 2011
First Filing
45
# of Holdings

Fund Overview

13F Filed: 2026-05-12

As of 2026 Q1, Arbiter Partners Capital Management Llc manages $175M in reported 13F assets , holds 45 positions with +71.55% top-10 concentration , and delivered a 1-year return of +64.99% on its disclosed equity portfolio. Filing 13F reports since 2011.

About

Investment Strategy

Analytics Summary

Risk Profile

Key Personnel

Paul J. Isaac — Founder & Managing Partner
Official 13F Filings — SEC EDGAR Key personnel and Fund Overview may contain mistakes

Activity Summary — 2026 Q1

Q1 2026 13F Filed: May 12, 2026

Top Buys

% $
Stock % Impact
PUT Option
+3.10%
+2.01%
N/A ATRIUM THERAPEU..
+1.76%
+1.55%
+1.35%
+1.25%

Top Sells

% $
Stock % Impact
-20.15%
Sold All 😨 Was: 3.61% -4.25%
Sold All 😨 Was: 2.62% -3.08%
-1.47%
-0.76%
-0.60%

Top Holdings

2026 Q1
Stock %
30.64%
PUT Option
10.52%
9.78%
3.89%
3.19%
3.04%
View All Holdings

Activity Summary

Latest
Market Value $175M
AUM Change -14.94%
New Positions 3
Increased Positions 10
Closed Positions 7
Top 10 Concentration +71.55%
Portfolio Turnover +15.37%
Alt Turnover +23.92%

Sector Allocation Trends

Quarterly History
Free View: Last 10 Quarters. Subscribe to see full history

Holdings Analysis

Size: % of Portfolio Color: Last Full-Quarter Return No data
Free: 10 quarters

Positions Dynamics

Visualizing Top 20 holdings weight history over the last 10 quarters.

Portfolio Analytics — Latest

Arbiter Partners Capital Management LLC risk dashboard covering volatility, beta, value-at-risk, drawdowns, concentration, factor tilts, benchmark comparison, and stress testing for the latest disclosed portfolio.

Risk access
Building institutional risk profile...
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Real-time Analytics
High-Conviction Alpha
AAPL 92.4
NVDA 88.1
MSFT 74.3
Strategy Guardian
Style Drift 0.12
Sector Rotation 0.38

Tracking institutional benchmark deviation

Scenario Lab
2008 GFC -32.4%
Covid-19 -18.1%
2022 Bear -24.7%
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Real conviction scores for every holding  ·  Strategy Guardian alerts  ·  Live Scenario Lab stress tests
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Best Strategy vs. Benchmarks

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Returns
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Risk
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Std Deviation
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Max Drawdown
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Beta vs SPY
Quality
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Edge Metrics Last 10 quarters only
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Alpha annualized
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Up Capture
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Down Capture

Strategy Backtester: Arbiter Partners Capital Management LLC

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Find the best N! Test multiple portfolio sizes at once to discover the optimal configuration.

Risk insights! Identify periods when the fund lagged the benchmark – critical for timing entries.

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Underperformance Analysis — Top 10 Holdings vs SPY

Backtesting Arbiter Partners Capital Management LLC's top 10 holdings against SPY identified 44 underperformance periods. Worst drawdown: 2026-02 – 2026-02 (-25.5% vs SPY, 1 quarter). Currently underperforming.

Avg. lag: -8.9% vs SPY Avg. duration: 2.2 quarters
Backtest Snapshot — Top 10 Holdings (Mn-Weighted)

The ticker-level breakdown shows how each of Arbiter Partners Capital Management LLC's top holdings contributed to portfolio returns quarter by quarter. Strongest recent contributors inside the last 5 years of the quarterly Top 10 backtest window: GRAL (2024 Q2 – 2025 Q4, +78.1 pts), SNDA (2021 Q2 – 2025 Q4, +14.1 pts), GEF/B (2021 Q2 – 2025 Q4, +7.4 pts), JXN (2021 Q4 – 2023 Q4, +5.8 pts), SPNT (2024 Q3 – 2025 Q4, +2.6 pts) .

Strategy ann.: 10.8% SPY ann.: 13.8% Period: 2011–2026
Best Recent Contributors — Last 5Y
2 of 5 recent top contributors lagged SPY, which means even some of this fund's best return drivers still failed to beat a simple index over the same window.
2024 Q2 – 2025 Q4 • 7Q in Top 10 Beat SPY
GRAL
+287%
SPY
+39%
Contrib
+78.1%
2021 Q2 – 2025 Q4 • 19Q in Top 10 Lagged SPY
SNDA
+19%
SPY
+76%
Contrib
+14.1%
2021 Q2 – 2025 Q4 • 19Q in Top 10 Lagged SPY
GEF/B
+65%
SPY
+76%
Contrib
+7.4%
2021 Q4 – 2023 Q4 • 9Q in Top 10 Beat SPY
JXN
+86%
SPY
+25%
Contrib
+5.8%
2024 Q3 – 2025 Q4 • 6Q in Top 10 Beat SPY
SPNT
+58%
SPY
+26%
Contrib
+2.6%
Stock return (green = beat SPY)   Stock return (red = lagged SPY)   SPY same period   Cumulative contribution during the last 5 years of the quarterly Mn-weighted Top 10 strategy

Frequently Asked Questions

What does Arbiter Partners Capital Management Llc invest in?
Arbiter Partners Capital Management employs a deep value and special situations investment strategy under Paul Isaac's leadership, targeting securities trading at significant discounts to intrinsic value where specific catalysts or time-driven factors can unlock value. The **13F Portfolio Composition** derived from regulatory filings reveals a diversified but concentrated portfolio that often includes unconventional holdings—smaller-capitalization companies, out-of-favor industries, and situations involving corporate complexity that create analytical barriers for generalist investors. Paul Isaac's investment philosophy is rooted in classical value investing principles extended to include special situations, distressed opportunities, and contrarian positioning. The approach emphasizes fundamental business analysis, asset value assessment, and margin of safety rather than momentum or growth characteristics. Holdings may include companies undergoing restructuring, businesses in temporarily depressed industries, or firms whose true asset values are obscured by complex corporate structures or negative market sentiment. The willingness to hold positions through periods of market disagreement reflects deep conviction in fundamental analysis. The **Sector Allocation History** observable through sequential filings demonstrates Arbiter Partners' opportunistic approach across industries where deep value opportunities emerge. Unlike sector-specialist managers, the firm follows value wherever it appears, resulting in sector positioning that reflects bottom-up opportunity discovery rather than top-down sector views. Low to moderate turnover reflects extended holding periods characteristic of deep value strategies where thesis realization often requires patience. Analysis of holdings evolution reveals position-building patterns around identified value dislocations.
What is Arbiter Partners Capital Management Llc's AUM?
Arbiter Partners Capital Management Llc reported $175M in 13F assets as of 2026 Q1. Note: 13F AUM reflects only long equity positions reported to the SEC and may differ from total assets under management.
How concentrated is Arbiter Partners Capital Management Llc's portfolio?
Arbiter Partners Capital Management Llc holds 45 disclosed positions. The top 10 holdings represent +71.55% of the reported portfolio, indicating a highly concentrated investment approach.
How to track Arbiter Partners Capital Management Llc 13F filings?
Track Arbiter Partners Capital Management Llc's quarterly filings on SEC EDGAR or on this page — data is updated within days of each filing deadline. Subscribe to 13Foresight for position-change alerts.
Who manages Arbiter Partners Capital Management Llc?
Arbiter Partners Capital Management Llc is managed by Paul J. Isaac (Founder & Managing Partner).

Disclaimer: 13Foresight is not a registered investment adviser, broker-dealer, or financial planner. All information on this site is provided solely for informational and educational purposes and does not constitute investment advice, a solicitation, or a recommendation to buy or sell any security. Portfolio backtests shown on this page are hypothetical and simulated — they do not represent actual trading results and were constructed with the benefit of hindsight. Actual results would differ materially. 13F filings disclose only long equity positions valued above $10,000, submitted up to 45 days after quarter-end; they do not capture short positions, options, bonds, cash, private investments, or non-U.S. securities. A fund's backtest performance may not reflect its actual returns, as managers frequently generate alpha through strategies not visible in 13F data. Past performance is not indicative of future results. All data sourced from public SEC EDGAR filings. Use at your own risk. Full Terms of Use.

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