Position sizing, draggable risk lines on the TopstepX chart, auto quantity and one-click OCO orders. Not affiliated with Topstep.
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Version
2.2.0
updated 12 Oct 2026
About StepRisk — Risk & OCO for TopstepX
StepRisk sizes every TopstepX trade by risk, so a single trade can't blow your account.
DRAG YOUR RISK ON THE CHART
• Click "+ Buy" or "+ Sell" and three lines appear on the TopstepX chart: entry, stop and target.
• Drag the stop and StepRisk calculates how many contracts fit your risk, then fills the quantity on the order card for you.
• Prefer a fixed size? Pick the number of contracts and a dollar risk, and StepRisk places the stop and target for you.
• The target follows your R multiple (1R, 2R, 3R…) as you move the stop.
• Enter at your line, or at market with the lines following the live price.
PROP FIRM RULES BUILT IN
• Reads your balance, Maximum Loss Limit (MLL) and today's realized P&L straight from TopstepX.
• Risk as a % of your buffer to the MLL, or a fixed dollar amount.
• Every trade is capped by your daily loss limit and by your MLL buffer.
• Built-in calculator in the toolbar popup for quick what-if sizing.
ONE-CLICK OCO ORDERS (optional)
• With your own ProjectX API subscription, send the order at market or at your entry line, with stop and target exactly where your lines are.
• Two-click confirmation shows the account, contract, side and size before anything is sent.
• Per-order contract limit, and orders are blocked when the risk is above what you allowed.
• Your ProjectX API key stays in your browser. It is never sent to the TopstepX page or to us.
WHY TRADERS USE IT
• No more mental math under pressure: the size is always right for your stop.
• Protects your funded account from oversized trades.
• Your settings are remembered every time you open TopstepX.
Works with micro and E-mini futures on the Nasdaq-100, S&P 500, gold and crude oil.
Languages: English and Portuguese.
Subscription: US$ 5/month.
StepRisk is not affiliated with or endorsed by Topstep or ProjectX. Not financial advice. Trading futures involves substantial risk of loss. You are responsible for every order you send.