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JZ

About

A Finland-based system trader who once described himself as shorting US small caps with a backtested, data-driven approach. In 2024 he wrote that he had moved from a purely systematic style to a system/discretionary hybrid, and his posts keep returning to journaling, rules and risk.

In their words

Sizeable loss is acceptable. Completely blowing up is not.

X · 2025-09-08

Journaling for accurate stats, analyzing your trades/setups, making required changes... Seriously undervalued aspects of what's required to be successful in this highly competitive game we call trading

X · 2024-11-30

Blind faith is much more difficult than actually knowing the system inside out and therefore trusting & executing it through ups and downs

X · 2025-03-10

Clearly defined rules & studying gives you the confidence to sit out unfavorable market conditions.

X · 2022-01-31

Just got to keep grinding and trusting the process. Also never lower your guard. You're always just a few bad trades away from blowing it all up.

X · 2022-07-19

On X and personal sites

System trader with a touch of discretion on a quest to financial independence.

Sources

https://x.com/Jeppez420

· Profiles show check dates and original sources. Inclusion is not a ranking or trading advice.