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Prop Firm Drawdown-First Position Sizing Calculator
A SaaS tool that reframes prop firm account data around the real risk (drawdown limit) rather than the marketing balance. Traders input their firm, account size, and drawdown parameters; the tool calculates optimal position sizes, shows real risk percentages, and alerts when sizing exceeds safe thresholds relative to drawdown distance.
Pourquoi c'est important
You pass a prop firm evaluation and see a $50,000 balance on your dashboard. Your dopamine spikes. You size your first funded trade at 1% of that number — $500 — feeling responsible. But your actual drawdown limit is only $2,000. That single trade risks 25% of your real cushion. Four consecutive losses and you are done, back to paying another eval fee. You know this intellectually after blowing a few accounts, but in the moment, the big number on the screen overrides your discipline. Existing trading journals track your trades after the fact but none reframe the account around your true risk distance or warn you before you enter a position that is too large relative to your drawdown. You trade multiple accounts across different firms with different rules, making it even harder to keep track of your aggregate exposure.
- · Conçu pour Active prop firm traders, particularly those in their first 1-2 years who trade futures or forex evals and have experienced account blowups from misjudging position size relative to drawdown limits.
- · Monétisation la plus probable : SaaS subscription with freemium tier (basic calculator free, multi-account and advanced features paid).
La douleur · Récit
You pass a prop firm evaluation and see a $50,000 balance on your dashboard. Your dopamine spikes. You size your first funded trade at 1% of that number — $500 — feeling responsible. But your actual drawdown limit is only $2,000. That single trade risks 25% of your real cushion. Four consecutive losses and you are done, back to paying another eval fee. You know this intellectually after blowing a few accounts, but in the moment, the big number on the screen overrides your discipline. Existing trading journals track your trades after the fact but none reframe the account around your true risk distance or warn you before you enter a position that is too large relative to your drawdown. You trade multiple accounts across different firms with different rules, making it even harder to keep track of your aggregate exposure.
Détail du score
Signal du marché
Mise sur le marché
Active futures and forex prop firm traders who have blown at least one funded account and trade 3-5 days per week
~50K-100K serious prop firm traders globally who are actively paying for evals and seeking to improve consistency
r/Daytrading and r/Daytrader organic posts with value-first risk calculator content
$19/month for Pro tier with multi-account and real-time alerts
500 free users and 20 paying subscribers within 30 days of launch via community posts
Périmètre MVP · 1–2 semaines
- Build core position sizing calculator: input account balance, drawdown limit, drawdown type (trailing/static), and desired risk % — output max contracts/lots and real risk percentage
- Create a database schema for prop firm rules (drawdown type, drawdown amount, profit target, min trading days, payout rules) and seed with top 10 firms
- Design and build the main dashboard UI showing a single account with a 'real risk' gauge (drawdown remaining vs. distance to target)
- Set up user authentication and basic account management (create account, add prop firm account details)
- Deploy to a staging environment and test the calculator with real-world prop firm parameters
- Add multi-account support: users can add multiple prop firm accounts and see aggregate drawdown exposure across all accounts
- Build pre-trade risk checker: user inputs planned position size, tool warns if it exceeds configurable % of remaining drawdown
- Create a prop firm comparison page showing normalized risk parameters across firms (real risk %, effective account size, rule complexity score)
- Add a basic blowup journal: log what happened when an account was blown (position size, number of trades, drawdown at blowup) with auto-analysis of sizing errors
- Launch landing page with free calculator widget, collect emails, and post value-first content in trading communities
Différenciation
Pourquoi cela pourrait échouer
Auto-contre-argument — le signal de confiance le plus important
- 1Traders may view this as a one-time calculation rather than an ongoing subscription, making it hard to retain users beyond 1-2 months once they internalize the math
- 2Broker API restrictions for firms like Topstep/Tradovate may prevent real-time automated tracking, reducing the tool to manual entry and lowering perceived value below the subscription price
- 3The most painful segment (beginners blowing accounts) may have low willingness to pay after losing money on evals, while profitable traders may not need the tool as urgently
Résumé des preuves
Comment l'IA a synthétisé cet aperçu — pas de citations textuelles
Approximately 18 commenters in this discussion explicitly describe the core problem of sizing positions based on the headline account balance rather than the drawdown limit. Multiple users provide specific mathematical examples showing how 1% of $50,000 equals $500, which represents 25% of a $2,000 drawdown cushion. Several commenters note that this psychological trap is how prop firms generate reset fee revenue. About 8 commenters discuss the inconsistency and opacity of rules across different prop firms. Roughly 4 commenters describe managing multiple accounts simultaneously, suggesting demand for aggregated tracking. The recurring mention of eval fees ($75-100) as sunk costs indicates an existing spending pattern that a risk management tool could tap into.
Plan d'Action
Validez cette opportunité avant d'écrire du code
Prochaine Étape Recommandée
Construire
Signaux de demande forts. Vraie douleur et volonté de payer détectées — commencez à construire un MVP.
Kit de Textes pour Landing Page
Textes prêts à coller, basés sur le langage réel de la communauté Reddit
Titre Principal
Prop Firm Drawdown-First Position Sizing Calculator
Sous-titre
A SaaS tool that reframes prop firm account data around the real risk (drawdown limit) rather than the marketing balance. Traders input their firm, account size, and drawdown parameters; the tool calculates optimal position sizes, shows real risk percentages, and alerts when sizing exceeds safe thresholds relative to drawdown distance.
Pour Qui
Pour Active prop firm traders, particularly those in their first 1-2 years who trade futures or forex evals and have experienced account blowups from misjudging position size relative to drawdown limits
Liste des Fonctionnalités
✓ Drawdown-based position size calculator (input account params, output safe contract/lot size) ✓ Real-time remaining drawdown distance tracker with visual gauge ✓ Multi-account dashboard aggregating all prop firm accounts with combined risk view ✓ Pre-trade risk check that blocks or warns when a planned position exceeds configurable risk thresholds ✓ Firm-specific rule engine (trailing vs static drawdown, minimum profit days, payout requirements) ✓ Unified dashboard showing all connected prop firm accounts with real-time balance and drawdown status ✓ Aggregate risk meter showing total capital at risk across all accounts ✓ Position correlation alerts when multiple accounts hold similar positions (concentration risk)
Où Valider
Partagez votre landing page sur r/r/Daytrading — c'est exactement là que ces points de douleur ont été découverts.
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