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About JuniorMinerJunky
JMJ is a subscription service focused on precious metals mining sector. Founded by David Erfle, a self-taught professional mining sector investor, the service provides full transparency into David's trading activities and teaches investors how to successfully navigate this high-risk/high-reward sector.

Low Risk Investments

Growth
Oriented Producers

Medium Risk Investments

Developers
and
Explorers

High Risk Investments

Early stage exploration
companies

PORTFOLIO REALIZED GAIN RETURNS

The real-money JMJ Portfolio was up 265% in 2025. Since its inception in Q1/2016 with investment capital of US$500k, the JMJ Portfolio has averaged an annual realized gain return of 20%.

20%

Average annual realized gain return
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WHAT PEOPLE SAY

"I wanted to thank you for your JMJ service, and ask you to let my subscription expire at the end of its current term. I have learned an immense amount from your commentary and method, and benefited greatly. Will continue to be looking for your regular interviews on Kitco, KE Report, and MSE."

—  David J., JMJ Subscriber

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