top of page
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

REAL MONEY PORTFOLIO 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%.

265%

Total portfolio gain in 2025
Depositphotos_371474770_xl-2015_edited.jpg

WHAT PEOPLE SAY

"I just signed up for Junior Miner Junky and wanted to say thank you and well done - the depth of detail in the weekly updates, company notes, and trading account transparency is honestly more thorough than anything else I’ve come across in this space. 

 

Being able to see your actual real-money trades, entry prices, and reasoning each week is incredibly valuable, and the macro/geopolitical commentary alongside the technical levels gives real context I wasn’t getting elsewhere."

—  D. G., JMJ Subscriber

bottom of page