Ready to grow your investing expertise? Register now for our upcoming Model Stock Investment Club meeting! Discover how the Rocky Mountain Chapter Model Investment Club operates and learn valuable strategies for evaluating small- and mid-sized companies – often overlooked gems with annual revenues under $10 billion.



Stock presentation: Duolingo (DUOL)

Presented by Tom Devries

Duolingo is the world’s most popular language-learning app, operating on a freemium model with over 135 million monthly active users. Founded in 2011 and public since 2021, the company has expanded into math, music, chess and early literacy, and operates the Duolingo English Test, accepted by over 5,000 institutions worldwide (including 4,300+ in North America).


Duolingo has achieved consistent profitability, minimal long-term debt, and holds over $1.1 billion in cash. With paid subscriber penetration at only ~9% of users, significant monetization upside remains. Management guided for over $1.0 billion in 2025 revenue (raised to $1.0275–$1.0315 billion midpoint, +37–38% YoY).


Tom retired after a 40-year career in supply-chain leadership, including 15 years at Nestlé as General Manager, Supply Chain Manager, and Logistics Manager. He now applies that same analytical rigor to researching companies. Outside of investing, Tom enjoys hiking, skiing, volunteering as a Bible-study leader, and AARP Tax-Aide.



Educational Focus: When Selling Makes Sense

Presented by Dori Raser


Moving beyond the emotion of "buy and hold" can be the hardest part of investing. In this session, we will look at four core reasons to sell, ranging from personal financial needs to shifting company fundamentals.

Key Takeaways:

  • • Master the PERT Report: Learn to use Betterinvesting’s Portfolio Evaluation & Review Technique (PERT) to identify which stocks are dragging down your potential.
  • • Systematic Valuation: Discover specific metrics to systematically increase your rewards while protecting your capital.
  • • Data-Driven Decisions: Learn how to make selling a source of strength for your portfolio rather than leaving your exit strategy to chance

Join us and learn how to make selling a source of strength for your portfolio.


Dori Raser is currently the Portfolio Manager of the Golden West Model Investment Club and a volunteer with the Rocky Mountain Chapter. Dori served as the Presiding Partner of the SoCal Model Investment Club in the Golden West Chapter and as a volunteer in the Rocky Mountain Model Investment Club. In addition, she served as the Project Manager with the Multi-Chapter Consortium for Education, and serves on the New Volunteer Development Program training committee. She is currently retired, but has worked both as a licensed stockbroker assistant with Merrill Lynch Institutional Sales and as an educator/administrator with the Los Angeles Unified School District.



Model Investment Club dates for 2026:

March 18, 2026

April 15, 2026

September 16, 2026

October 21, 2026

November 19, 2026


Model Investment Club dates for 2027:

January 20, 2027