zprimBoutique Firm

We have the experience, size, and depth to manage money for large institutions, while remaining small enough to deliver performance and service.

zprimFounded on Research

ZPR began in 1979 as an investment research consultant to institutions such as mutual funds and insurance companies. We specialize in research on market anomalies – situations where an investor can use an information advantage to enhance returns. Max Zavanelli’s GRAPES (Growth Rate Arbitrage Pricing Equilibrium System) theory of stock prices is the basis for our fundamental investment strategies.


We design investment strategies based on our research into their historical performance and risk characteristics. Of course, there is no guarantee that historical patterns will be predictive of the future. This research typically leads us to investments which are substantially different from popular indexes and benchmarks.

zprimManagement Experience

Mark Zavanelli is a Chartered Financial Analyst (CFA) and was previously a Senior Portfolio Manager at OppenheimerFunds.

zprimTrack Record

ZPR Investment Management and its predecessor entities have nearly 30 years of experience in managing investment accounts. Our aim has been a higher compounding of wealth over the long term. Our performance speaks for itself.

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(386) 775-1177