Know your pass probability before you pay the fee.
Vektor replays your real trades — sequence intact — against each prop firm's actual rules. Real spreads, real swap, real drawdown math, walk-forward validated. Not another coin-flip calculator.
One-time payment · refundable any time before delivery · 20 founding spots
The free calculators are flipping coins.
Your strategy isn't a coin.
We walk-forward tested a simple weekly multi-asset basket (gold, silver, Nasdaq, Nikkei — M30 bars, 2020–2026) with FTMO-style pass/fail latches and full cost modeling. Aggregate stats say a fair coin. The fold table says something else.
| Fold | OOS window | Test Sharpe | Trades | Outcome |
|---|
Fold 4 — OOS equity path
Run your numbers. Then turn on reality.
A working simulator, free, in your browser. Enter your stats, pick a rule set, and flip the regime clustering switch to see what serial correlation does to the number the other calculators gave you.
Educational estimate from the stats you enter — the full product replays your actual trade sequence and exact firm rules instead. Presets are common published values; always verify current rules with the firm. Simulations are not predictions or advice.
The engine behind the report.
These panels mirror the real Vektor interface. The backtest below runs on synthetic demo data so you can feel the workflow — the production engine runs the same code against broker-grade history.
Backtest — challenge overlay
synthetic demo datamonday_basket_demo
simulated feedday P&L —
Simulated feed for demonstration. A read-only stream from a real funded-rules demo account is being wired in — founding members see it first.
Positions & guards
| Symbol | Side | Lots | P&L |
|---|
| Rule set | Target | Max DD | Daily loss | DD type | Min days | Consistency |
|---|---|---|---|---|---|---|
| 2-step · Phase 1 | 10% | 10% | 5% | static · balance | 4 | — |
| 2-step · Phase 2 | 5% | 10% | 5% | static · balance | 4 | — |
| 1-step | 10% | 6% | 4% | trailing · equity | 3 | 40% rule |
| Futures eval | 6% | 4% | — | trailing · EOD | 7 | 50% rule |
| Instant funded | — | 8% | 4% | trailing · equity | — | 30% rule |
Illustrative rule shapes — the production rules database is versioned and dated per firm and plan, because firms change these monthly. Daily resets honored in the firm's own timezone (yes, including Prague midnight). Every simulation cites the rule version it ran against.
Concierge first. Software second.
Pre-order
€49 one-time. Twenty founding spots. Refundable any time before your report is delivered — no questions.
Send your trades
Export your history from MT5, MT4 or cTrader (statement or CSV). We reconstruct your equity path with real timestamps.
Get your report
Within 48h of launch day (—): P(pass) across the major rule sets, sequence-preserved, plus the risk sizing that maximizes it.
One honest number costs less
than one failed evaluation.
- Your challenge-readiness report — delivered within 48h of launch (—)
- 12 months of the platform when self-serve ships — backtests, rule replays, Monte Carlo
- Founding price locked for as long as you subscribe after that
- Refundable any time before delivery — plus your statutory 14-day EU withdrawal right
Fair questions, straight answers.
What exactly do I get for €49?
A personal challenge-readiness report built from your real trade history: pass probability across the major rule sets with your sequence preserved, where your risk of failure concentrates (daily loss vs. max DD vs. timeout), and the per-trade risk that maximizes P(pass). Plus 12 months of the self-serve platform when it ships, at a locked founding price afterwards.
What do I need to send you?
A trade history export — MT5/MT4 account statement (HTML) or a CSV from cTrader or your journal. Fifty or more trades gives a meaningful estimate; more is better. No account credentials, ever.
How is this different from the free calculators?
They flip independent coins from your win rate. We replay your actual trade sequence — streaks intact — against exact rule mechanics: daily resets in the firm's timezone, static vs. trailing drawdown, consistency rules, and real trading costs. Serial correlation is precisely what breaches daily-loss limits, and shuffling it away inflates your pass rate. That's the finding at the top of this page.
Is this financial advice or account management?
No. Vektor is research software. We never touch your accounts, never place trades, and never tell you what to trade — we quantify how a strategy you already trade interacts with a rule set. Simulation results are estimates, not guarantees.
What if you don't launch on time?
Then you get every cent back without asking twice. The money sits untouched until your report is delivered — that's a policy, not a promise.
Who is behind this?
Nordflow, a Finnish company — built by an engineer who runs these exact rule replays and walk-forward tests on his own prop-firm attempts. The fold table above is real output from that work.