Built by a Trader
Who's Been There
Prevyu exists because its founder couldn't follow his own rules —
until he built a system that made him.
Calvin Williams Jr.
“I've been on both sides of trading. I've built wealth management technology that passed SEC registration. I've raised millions from some of the most respected investors in the world. But none of that stopped me from breaking my own trading rules.”
“I knew exactly what I should do. I had the strategy. I had the discipline... on paper. But when the market moved, when FOMO hit, when a loss needed to be 'made back' - I was just like everyone else.”
“Prevyu is the tool I built for myself. A checkpoint that stands between impulse and execution. A system that doesn't lecture you about what you did wrong - it stops you before you do it.”
“If you know better but struggle to do better — this is for you.”
We believe every trader has an edge. Prevyu helps you use it.
Pre-Trade, Not Post-Trade
Traditional journals document your mistakes after they happen. Prevyu prevents them before they cost you money.
Your Rules, Your System
We don't tell you how to trade. We help you follow your strategy consistently.
Discipline Through Design
We've engineered discipline into the trading workflow - so you don't have to rely on willpower alone.
Why We're Different
We Are
- Built by traders, for traders
- Focused on pre-trade intervention
- Research-backed methodology
- Premium experience, premium results
- Privacy-first (your data trains only YOUR model)
We're Not
- A trading signals service
- A get-rich-quick scheme
- Another cheap journaling tool
- A replacement for trading education
- Selling your data
Our Values
Honesty Over Hype
We won't promise you'll become profitable. We promise you'll become more disciplined.
Respect Your Intelligence
You know what you should do. We help you do it. No condescension, no guru worship.
Measure What Matters
Discipline, not just P&L. Process, not just outcomes.
Ready to Trade With More Discipline?
Join our founding cohort. Free access. Limited spots.