Pass prop firms with rules, not luck.
Rule-based, systematic trading. Clear rules, tested on years of data, so every entry, exit and position size is decided before the trade - not by how you feel.
Free Discord: free strategies, playbooks and tools. Cancel the membership anytime.
Rules
- 20+ rule-based strategies with code
- Step-by-step course & roadmap
- Backtesting and validation process
Proof
- Live trade alerts, tracked in R
- Every win and loss recorded
- Our own funded account payouts
Support
- Private community of rule-based traders
- EA development support
- 24/7 assistant for course questions
6+
Years of Systematic Trading
100+
Strategies Backtested
20+
Strategies in the Library
150+
Traders Taught
Our own funded account payouts
Real payouts and passed challenges from the accounts we trade with these systems.
It's not your discipline. It's the lack of rules.
Most traders don't fail because they don't study enough. They fail because every decision is made in the moment. A few losses, then hesitation. Skipped trades. Missed winners. Bigger size to win it back. Then the daily loss limit hits - and the next challenge starts the same way.
You don't need more willpower. You need rules that make the decision for you.
- 1A few losses
- 2Hesitation
- 3Skipped trades
- 4Revenge sizing
- 5Account breached
- Back to start
Where you are vs. where rule-based trading takes you
Without rules
- You change your strategy after every loss
- You don't know if your edge is real - you have no data
- You hesitate on good trades and force bad ones
- One bad day breaks your daily loss limit
- Every challenge feels like starting from zero
With The System Theory
- Every entry, exit and size is defined before the trade
- Your strategies are backtested on years of data
- Your risk is sized to the prop firm's rules
- You run several uncorrelated strategies, not one bet
- You treat challenges like a process, not a gamble
Watch rule-based trading happen live
Every trade from our systematic portfolio is posted the moment it opens - entry, stop loss, take profit and the reasoning - with a live thread until it closes. Every result is recorded automatically in R, wins and losses, and posted every week. Nothing deleted, nothing cherry-picked.
- Posted live, never edited
- Results in R (risk units), not inflated percentages
- Not signals to copy blindly - they show you how a rule-based system trades, so you can build your own
One portfolio · Five strategies
The System Theory Method.
Learn to build, validate and combine mechanical trading systems into one automated portfolio.
- Learn how each system works
- Validate it with real backtests
- Combine them into one portfolio
- Deploy the portfolio on MT5
What's included
Strategy Library
20+ rule-based strategies with backtests and code (MT5 & TradingView).
Full Course & Roadmap
Rule-based trading, risk management and prop firm challenges, step by step.
Live Trade Alerts
Rule-based trades posted live with entry, stop and reasoning, tracked in R.
EA Development Support
Help building, testing and improving your automated strategies.
Prop Firm Tools
Prop Firm Simulator, Funded Account EV Calculator and Strategy Analyzer.
Members-Only Research
New studies, playbooks and code.
Trading Book Library
Curated systematic trading resources.
Private Community
A Discord of rule-based traders sharing strategies, code and portfolios.
Know your odds before you pay for another challenge
Run thousands of simulations of your strategy against real challenge rules and see your pass probability and expected payout before you risk a fee.
Example simulation
27.35%
avg 11.5 days
72.65%
avg 7.2 days · Trail DD 100%
Challenge equity paths
Trading day 1/39 · Median $49.8K
What members say
The mind behind Σystem Theory
My name is Stavros Eleftheriadis and I am a systematic trader with 6+ years of experience building rule-based trading strategies. I don't believe in drawing lines on charts or following "signals" — I believe in quantifiable, repeatable systems that have a measurable, tested edge
Through Σystem Theory, I mentor serious traders who are ready to stop guessing and start trading with real, data-backed strategies. My approach comes from the systematic trading world — where every decision is objective and every strategy is backtested.
Pass prop firms with rules, not luck - start today
Start with the course, the strategy library, and the prop firm tools, or apply for a private implementation built around your firm, rules, and risk profile.
Not sure yet? Join the free Discord and ask anything first.
Full access to live alerts, the course, the strategy library, prop firm tools and the private trading floor.
Cancel anytime
What's included
- Live Trade Alerts: rule-based trades with entry, stop & reasoning, tracked in R
- Full Course on How to Get Funded and Stay Funded
- Rule-Based Trading Roadmap + Ongoing Guidance
- Strategy Library: 20+ rule-based strategies with code
- EA Development Support
- Prop Firm Simulator: know your pass odds before you risk a dollar
- Funded Account EV Calculator: know your true expected value
- Strategy Analyzer with Prop Firm Performance Analysis
- Strategy Validation Notebook: automated
- Members-Only Research & Playbooks
- Trading Book Library
- Trading Floor: private Discord community
(≈ $70/month)
Same full membership, billed every 3 months.
Everything you need to pass and keep prop firm accounts, at the best price.
Cancel anytime
What's included
- Live Trade Alerts: rule-based trades with entry, stop & reasoning, tracked in R
- Full Course on How to Get Funded and Stay Funded
- Rule-Based Trading Roadmap + Ongoing Guidance
- Strategy Library: 20+ rule-based strategies with code
- EA Development Support
- Prop Firm Simulator: know your pass odds before you risk a dollar
- Funded Account EV Calculator: know your true expected value
- Strategy Analyzer with Prop Firm Performance Analysis
- Strategy Validation Notebook: automated
- Members-Only Research & Playbooks
- Trading Book Library
- Trading Floor: private Discord community
A private 90-day implementation package where we build your systematic prop firm setup around your exact firm, account size, broker, rules, drawdown limits, symbols, risk profile, and scaling plan.
Includes 12 months of full platform access plus direct 1-on-1 support during the private implementation period. Renews annually.
Built with you. Not just handed to you.
Billed annually at $4,500/year. Includes 12 months of platform access and 90 days of private implementation.
What's included
- Your own custom prop firm portfolio — fully built, fully coded, and delivered with full source code
- Custom allocation and risk structure tailored to your account sizes, firms, and drawdown limits
- 90-day private implementation and support period
- Live performance review and portfolio adjustments
- 12 months of Quarterly Access included
- Firm-by-firm rules analysis and portfolio adaptation
- Risk plan built around max loss, daily loss, payout targets, and scaling objectives
- Private onboarding and strategy call
- EA deployment and setup guidance
- VPS, broker, and execution review
- Scaling and payout planning
- Full Course, private Discord, tools, portfolio access, and Quant Trading Library
FAQ
Common Questions
Everything you need to know before joining.
Systematic Trading
Course & Learning
Results & Expectations
Membership & Billing
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Ready to trade with rules, not luck?
Start in the free Discord with free strategies, playbooks and tools - or join the membership for the full system.
or book a free strategy call