Family Office / Private Investment Firm

Caledonia (Private) Investments Pty Ltd — 13F Portfolio

Melbourne, Australia Australian Financial Services License; SEC Registered for U.S. Holdings Private Family Capital CIK: 0001352924
13F Score ?
5
3Y · Top 10 · Mgr Wt
13F Score ?
6
7Y · Top 10 · Mgr Wt
S&P 500 ?
80
Benchmark
$3.44B
AUM
-14.06%
2026 Q1
-48.78%
1-Year Return
+99.24%
Top 10 Concentration
+4.35%
Turnover
-34.10%
AUM Change
Since 2012
First Filing
16
# of Holdings

Fund Overview

13F Filed: 2026-05-15

As of 2026 Q1, Caledonia (Private) Investments Pty Ltd manages $3.44B in reported 13F assets , holds 16 positions with +99.24% top-10 concentration , and delivered a 1-year return of -48.78% on its disclosed equity portfolio. Filing 13F reports since 2012. View full holdings list →

About

Investment Strategy

Analytics Summary

Risk Profile

Key Personnel

Mark Nelson — Chairman
Will Vicars — Chief Investment Officer
Mike Messara — Director
Official 13F Filings — SEC EDGAR Key personnel and Fund Overview may contain mistakes

Activity Summary — 2026 Q1

Q1 2026 13F Filed: May 15, 2026

Top Buys

% $
Stock % Impact
+2.56%
+1.71%
+0.06%
+0.01%
+0.01%

Top Sells

% $
Stock % Impact
-20.59%
-19.69%
-8.91%
-3.73%
Sold All 😨 Was: 0.75% -1.15%
-0.74%

Top Holdings

2026 Q1 Top 6 mgr. wt. · 2026 Q1-14.06%
Stock %
31.17%
25.30%
13.69%
10.73%
10.00%
2.56%
View All Holdings

Activity Summary

Latest
Market Value $3.44B
AUM Change -34.10%
New Positions 2
Increased Positions 3
Closed Positions 2
Top 10 Concentration +99.24%
Portfolio Turnover +4.35%
Alt Turnover +30.22%

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

Caledonia (Private) Investments Pty Ltd 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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Sharpe
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Win Rate
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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: Caledonia (Private) Investments Pty Ltd

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Underperformance Analysis — Top 10 Holdings vs SPY

Backtesting Caledonia (Private) Investments Pty Ltd's top 10 holdings against SPY identified 41 underperformance periods. Worst drawdown: 2021-02 – 2021-04 (-43.5% vs SPY, 3 quarters). Currently underperforming.

Avg. lag: -12.5% vs SPY Avg. duration: 2.0 quarters
Backtest Snapshot — Top 10 Holdings (Mn-Weighted)

The ticker-level breakdown shows how each of Caledonia (Private) Investments Pty Ltd'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: CCJ (2025 Q1 – 2025 Q4, +4.8 pts), LNW (2021 Q2 – 2025 Q3, +4.8 pts), FWONK (2023 Q3 – 2025 Q4, +3.9 pts), RPRX (2025 Q1 – 2025 Q4, +2.2 pts) .

Strategy ann.: 2.2% SPY ann.: 15.0% Period: 2013–2026
Best Recent Contributors — Last 5Y
2 of 4 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.
2025 Q1 – 2025 Q4 • 4Q in Top 10 Beat SPY
CCJ
+119%
SPY
+27%
Contrib
+4.8%
2021 Q2 – 2025 Q3 • 18Q in Top 10 Lagged SPY
LNW
+41%
SPY
+63%
Contrib
+4.8%
2023 Q3 – 2025 Q4 • 10Q in Top 10 Lagged SPY
FWONK
+38%
SPY
+70%
Contrib
+3.9%
2025 Q1 – 2025 Q4 • 4Q in Top 10 Beat SPY
RPRX
+62%
SPY
+27%
Contrib
+2.2%
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 Caledonia (Private) Investments Pty Ltd invest in?
Caledonia (Private) Investments employs an extraordinarily concentrated, long-term investment strategy characterized by deep fundamental research, conviction-driven position sizing, and holding periods measured in years rather than months. The firm's approach combines value investing discipline with growth company identification, seeking businesses with durable competitive advantages, exceptional management, and long runways for value creation—then holding these positions through volatility as underlying business value compounds. Examination of the firm's **13F Portfolio Composition** reveals extreme concentration even by concentrated portfolio standards, with disclosed holdings often numbering in the single digits and individual positions representing substantial percentages of disclosed equity exposure. This concentration reflects absolute conviction in each investment—positions are established only when analysis supports exceptional confidence, and sizing reflects the magnitude of perceived opportunity rather than diversification considerations. **Top 10 Holdings Concentration** analysis reveals that essentially all disclosed exposure typically resides in the top holdings, with the firm avoiding the small "tracking" positions that characterize many institutional portfolios. Historical disclosed positions have included transformational technology and consumer companies identified during earlier growth phases, with the firm's patient holding approach allowing participation in multi-year compounding as these businesses scaled globally. **Sector Allocation History** demonstrates the firm's opportunistic approach, with sector exposure reflecting bottom-up company identification rather than top-down allocation frameworks. Historical positioning has emphasized technology platforms, consumer businesses with network effects, and media properties with durable content advantages—sectors where great businesses can compound value for extended periods. The firm has demonstrated willingness to concentrate in a single sector when opportunities warrant. Turnover is extraordinarily low, reflecting holding periods that may extend a decade or longer for successful investments. The private capital structure enables this patience—without external capital redemption pressures, Caledonia can maintain positions through multi-year periods of underperformance or volatility when conviction in underlying business quality remains intact.
What is Caledonia (Private) Investments Pty Ltd's AUM?
Caledonia (Private) Investments Pty Ltd reported $3.44B 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 Caledonia (Private) Investments Pty Ltd's portfolio?
Caledonia (Private) Investments Pty Ltd holds 16 disclosed positions. The top 10 holdings represent +99.24% of the reported portfolio, indicating a highly concentrated investment approach.
How to track Caledonia (Private) Investments Pty Ltd 13F filings?
Track Caledonia (Private) Investments Pty Ltd'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 Caledonia (Private) Investments Pty Ltd?
Caledonia (Private) Investments Pty Ltd is managed by Mark Nelson (Chairman), Will Vicars (Chief Investment Officer), Mike Messara (Director).

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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