Asset Manager

HERALD INVESTMENT MANAGEMENT Ltd — 13F Portfolio

London, UK SEC 13F Filer / FCA Authorized Institutional CIK: 0001512022
13F Score ?
66
3Y · Top 10 · Mgr Wt
13F Score ?
66
7Y · Top 10 · Mgr Wt
S&P 500 ?
80
Benchmark
$718M
AUM
+35.75%
2026 Q1
+66.61%
1-Year Return
+44.24%
Top 10 Concentration
+10.17%
Turnover
-6.25%
AUM Change
Since 2010
First Filing
97
# of Holdings

Fund Overview

13F Filed: 2026-05-13

As of 2026 Q1, Herald Investment Management Ltd manages $718M in reported 13F assets , holds 97 positions with +44.24% top-10 concentration , and delivered a 1-year return of +66.61% on its disclosed equity portfolio. Filing 13F reports since 2010. View full holdings list →

About

Investment Strategy

Analytics Summary

Risk Profile

Key Personnel

Katie Potts — Founder & Managing Director
Anna Sherlock — Head of Operations
Louis Sherwood — Investment Manager
Official 13F Filings — SEC EDGAR Key personnel and Fund Overview may contain mistakes

Activity Summary — 2026 Q1

Q1 2026 13F Filed: May 13, 2026

Top Buys

% $
Stock % Impact
+1.24%
+1.19%
+1.12%
+0.79%
+0.75%
+0.51%

Top Sells

% $
Stock % Impact
-1.78%
-1.25%
-0.82%
-0.81%
-0.69%
-0.67%

Top Holdings

2026 Q1 Top 6 mgr. wt. · 2026 Q1+35.75%
Stock %
8.21%
7.27%
5.75%
4.93%
4.07%
4.06%
View All Holdings

Activity Summary

Latest
Market Value $718M
AUM Change -6.25%
New Positions 3
Increased Positions 5
Closed Positions 3
Top 10 Concentration +44.24%
Portfolio Turnover +10.17%
Alt Turnover +13.50%

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

HERALD INVESTMENT MANAGEMENT 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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Latest Quarter
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1-Year Return
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Ann. Return
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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Payoff Ratio
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: HERALD INVESTMENT MANAGEMENT Ltd

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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 HERALD INVESTMENT MANAGEMENT Ltd's top 10 holdings against SPY identified 43 underperformance periods. Worst drawdown: 2024-02 – 2024-10 (-22.9% vs SPY, 9 quarters).

Avg. lag: -7.5% vs SPY Avg. duration: 2.2 quarters
Backtest Snapshot — Top 10 Holdings (Mn-Weighted)

The ticker-level breakdown shows how each of HERALD INVESTMENT MANAGEMENT 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: SMCI (2021 Q3 – 2025 Q4, +98.6 pts), CLS (2024 Q1 – 2025 Q4, +43.4 pts), FN (2021 Q2 – 2025 Q4, +33.5 pts), SIMO (2021 Q2 – 2025 Q4, +17.4 pts), TSEM (2022 Q4 – 2025 Q4, +6.9 pts) .

Strategy ann.: 15.9% SPY ann.: 14.0% Period: 2011–2026
Best Recent Contributors — Last 5Y
All 5 recent top contributors beat SPY, which means this fund's strongest recent return drivers also outperformed the index over the same window.
2021 Q3 – 2025 Q4 • 18Q in Top 10 Beat SPY
SMCI
+639%
SPY
+69%
Contrib
+98.6%
2024 Q1 – 2025 Q4 • 8Q in Top 10 Beat SPY
CLS
+716%
SPY
+46%
Contrib
+43.4%
2021 Q2 – 2025 Q4 • 19Q in Top 10 Beat SPY
FN
+648%
SPY
+78%
Contrib
+33.5%
2021 Q2 – 2025 Q4 • 19Q in Top 10 Beat SPY
SIMO
+256%
SPY
+78%
Contrib
+17.4%
2022 Q4 – 2025 Q4 • 3Q in Top 10 Beat SPY
TSEM
+170%
SPY
+10%
Contrib
+6.9%
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 Herald Investment Management Ltd invest in?
Herald Investment Management Ltd employs a growth-oriented investment philosophy centered on identifying smaller technology, media, and telecommunications companies with substantial appreciation potential. The firm's approach emphasizes bottom-up fundamental research to discover emerging technology businesses before they achieve mainstream recognition, with particular focus on companies below the radar of larger institutional investors. Sector concentration in TMT reflects a deliberate specialist mandate where deep domain expertise provides analytical advantages over generalist competitors. The investment universe spans the complete technology ecosystem—including software, semiconductors, hardware, digital media, and telecommunications infrastructure—providing diversification within the broader technology theme. Analysis of the **13F Portfolio Composition** reveals the US equity component of Herald's global technology mandate, with disclosed holdings typically representing innovative American companies complementing UK and international technology positions. The small and mid-cap focus requires specialized research capabilities, as smaller technology companies receive limited Wall Street analyst coverage, creating information advantages for dedicated TMT specialists. Low to moderate turnover characteristics indicate conviction-based investing where promising technology businesses are held through development phases rather than traded around short-term volatility. Historical examination of **Sector Allocation History** through quarterly filings illuminates sub-sector positioning within the firm's technology focus.
What is Herald Investment Management Ltd's AUM?
Herald Investment Management Ltd reported $718M 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 Herald Investment Management Ltd's portfolio?
Herald Investment Management Ltd holds 97 disclosed positions. The top 10 holdings represent +44.24% of the reported portfolio, indicating a diversified investment approach.
How to track Herald Investment Management Ltd 13F filings?
Track Herald Investment Management 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 Herald Investment Management Ltd?
Herald Investment Management Ltd is managed by Katie Potts (Founder & Managing Director), Anna Sherlock (Head of Operations), Louis Sherwood (Investment Manager).

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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