Our Investment Process

A disciplined approach focused on predictable, recurring revenue streams.

AMI Investment Process & Team

Team Structure

Bill Tanner Founding Partner

Strategic oversight, idea generation, philosophy adherence

Chris Sessing Portfolio Manager

Portfolio management, healthcare and financials coverage

Andy Zamfotis Portfolio Manager

Portfolio management, technology coverage, thematic research

Richard Schimbor Senior Equity Analyst

Consumer sector coverage

Andrhe Cunha Equity Analyst

Industrials, materials, and energy coverage

Investment Process

Idea Generation

Ideas emerge from any team member - portfolio manager's market insights and thematic research or an analyst's sector work and analysis.

Team Evaluation

Collaborative assessment and debate - team picks apart ideas regardless of source.

Strategic Review

Senior team ensures ideas align with AMI philosophy and strategic fit.

Implementation

Portfolio managers execute with ongoing risk monitoring and downside protection.

Ideas can originate from anyone on the team. The group collectively evaluates and challenges each opportunity, while senior PMs ensure strategic alignment with AMI's risk-conscious investment philosophy.

Key Differentiators

  • Idea meritocracy - best ideas win regardless of source.
  • Collaborative debate and rigorous team evaluation.
  • Strategic philosophy filter ensures disciplined approach.
  • 40+ years experience guiding but not dictating decisions.
  • Balance between innovation and risk consciousness.

Stock Selection Process

Our systematic investment process combines quantitative screening with qualitative analysis to identify compelling opportunities. We follow a multi-step approach that ends with a valuation-driven buy decision.

1

Discovery & Business Model

We begin with a broad universe of companies, narrowing it down through rigorous screening for recurring revenue (50%+) and sustainable business models.

2

Competitive Analysis

We conduct in-depth analysis on competitive advantages, market leadership, and a company’s pricing power to ensure a wide economic moat.

3

Growth & Valuation

Our team identifies companies with strong growth outlooks, solid financials, and valuations that trade at a significant discount to our intrinsic value calculations.

A Disciplined Sell Process

We believe a disciplined sell process is as crucial as the buy decision. We will exit positions when our investment thesis is compromised to protect against permanent capital loss.

Primary Sell Decisions

  • Deteriorating Fundamentals

    Worsening industry conditions, new regulatory changes, or structural margin shifts compromise our thesis.

  • Competitive Threats

    A weakening competitive position due to new entrants or disruptive technology (e.g., AI).

  • Balance Sheet Deterioration

    Signs of a weakening balance sheet that put the company's financial health at risk.

Other Sell Decisions

  • Valuation

    When a stock appreciates substantially, exceeding 10% of our fair value outlook.

  • Portfolio Management

    If a position becomes too large or if a better opportunity emerges.

  • Price Review

    A review is triggered when a stock's price decreases by 25%. We do not use stop-loss orders.

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