prop-firm-rules: prop firm drawdown rules dataset + calculator (JS & Python)

▶ Live calculator (free, no sign-up, runs in your browser): floorguard-kappa.vercel.app/tools/drawdown-calculator.html

An open, sourced dataset of prop-firm risk rules (daily loss limit, max drawdown, static vs trailing, lock level, daily reset time) for FTMO, FundedNext, The5ers, E8 Markets, FundingPips, Alpha Capital, Blue Guardian, Topstep and Apex Trader Funding, plus a tiny zero-dependency drawdown calculator library in JavaScript and Python.

Every rule links to the firm's own help or rules page and carries a lastVerified date. Values that could not be confirmed on an official page are flagged verified: false or listed in unverifiedFields.

Try it without code: the free prop firm drawdown calculator on FloorGuard uses this same dataset and math in your browser.

Disclaimer: rules change. Prop firms update their rules often, and many let you pick different percentages at checkout. This data was checked on the date shown for each program. Always verify with your firm's current rules and your account dashboard before relying on any number here. Not affiliated with any prop firm; firm names are trademarks of their owners. Not financial advice.

Rules table (last verified 2026-10-04)

Firm	Program	Daily loss limit	Max drawdown	Daily reset	Source	Verified
FTMO	FTMO Challenge 2-Step	5% of initial balance, from day-start balance	10%, Static	00:00 CE(S)T (Prague)	1 2 3	2026-10-04
FTMO	FTMO Challenge 1-Step	3% of initial balance, from day-start balance	10%, Trailing (end-of-day)	00:00 CE(S)T (Prague)	1	2026-10-04
FundedNext	Stellar 2-Step (CFD)	5% of initial balance, from day-start balance	10%, Static	00:00 server time (GMT+2, GMT+3 in DST)	1 2 3	2026-10-04
The5ers	High Stakes (2-Step)	5% of higher of day-start balance/equity	10%, Static	00:00 MT5 server time (GMT+2 winter, GMT+3 summer)	1 2	2026-10-04
E8 Markets	E8 One (default 4% daily / 6% dynamic)	4% of initial balance, from day-start balance	6%, Trailing (closed balance), locks at initial	00:00 server time (time zone not stated on the page)	1 2	2026-10-04 (unverified: reset time zone)
FundingPips	2 Step Standard (5% daily)	5% of higher of day-start balance/equity	10%, Static	00:00 platform time (UTC+3)	1	2026-10-04
FundingPips	2 Step Standard (3% daily add-on)	3% of higher of day-start balance/equity	10%, Static	00:00 platform time (UTC+3)	1	2026-10-04
Alpha Capital	Alpha Pro 10%	5% of day-start balance	10%, Static	00:00 GMT+3 (broker time)	1 2 3	2026-10-04
Alpha Capital	Alpha Pro 8%	4% of day-start balance	8%, Static	00:00 GMT+3 (broker time)	1 2	2026-10-04
Blue Guardian	2 Step Standard	4% of initial balance, from higher of day-start balance/equity	8%, Static	5:00 pm EST (New York)	1	2026-10-04
Topstep	Trading Combine (futures)	None (see notes)	$2,000 on 50K, $3,000 on 100K, $4,500 on 150K, Trailing (end-of-day), locks at initial	End of trading day; Topstep's session is commonly cited as ending 3:10 pm CT / new day 5:00 pm CT (not confirmed on an official page)	1 2	2026-10-04 (unverified: reset time)
Apex Trader Funding	EOD Evaluation (futures)	$500 on 25K, $1,000 on 50K, $1,500 on 100K, $2,000 on 150K (pauses trading, not a breach)	$1,000 on 25K, $2,000 on 50K, $3,000 on 100K, $4,000 on 150K, Trailing (end-of-day)	Trading day resets 6:00 pm ET	1	2026-10-04
Apex Trader Funding	Intraday Trailing Evaluation (futures)	None (see notes)	$1,000 on 25K, $2,000 on 50K, $3,000 on 100K, $4,000 on 150K, Trailing (intraday, incl. open P/L)	Threshold does not reset daily	1	2026-10-04

"Day-start" means the value at the firm's daily reset. "Higher of day-start balance/equity" means open profit at the reset raises the reference. Every limit is checked against equity (open P/L counts) unless the notes say otherwise. Per-program notes (for example Topstep's optional daily loss limit, Apex lock behaviour, Blue Guardian's Guardian Shield) are in data/firms.json.

The dataset also includes each firm's published copy-trading, multi-account and automation (EA/bot) policy (policy on each firm), with quotes and sources. unknown means the firm's pages did not answer the question.

What's in the repo

Path	What
data/firms.json	The dataset (9 firms, 13 programs). Same content as data/firms.yaml
js/calc.mjs	Pure calculator, works in browsers and Node (no DOM, no deps)
js/index.mjs	Node entry: calculator + bundled dataset + getProgram, getFirm, check helpers
python/prop_firm_rules/	Python port with the same semantics (stdlib only)
js/test/, python/tests/	Tests built mostly from the firms' own published worked examples
scripts/rules-table.mjs	Regenerates the table above

Usage

JavaScript (Node 18+)

git clone https://github.com/kburrus64-max/prop-firm-rules && cd prop-firm-rules
node --test js/test/

import { check, getFirm } from './js/index.mjs';

// FTMO 2-Step, $100k: balance closed yesterday at $102,000, equity now $101,200
const r = check('ftmo_2step', {
  size: 100000, currentBalance: 102000, currentEquity: 101200, todayPnl: -800,
  stopDistance: 20, valuePerUnit: 10, bufferPct: 10,   // 20-pip stop, $10/pip/lot, keep 10% buffer
});
console.log(r.daily.floor, r.daily.room);       // 97000 4200
console.log(r.drawdown.floor);                  // 90000 (static)
console.log(r.maxLots, r.bindingLimit, r.status); // 18.5 'daily' 'green'

console.log(getFirm('topstep').policy.remoteServerTrading); // 'banned'

In the browser, import js/calc.mjs and fetch data/firms.json:

import { evaluate } from './calc.mjs';
const data = await (await fetch('/data/firms.json')).json();
const program = data.firms.find(f => f.id === 'topstep').programs[0];
evaluate({ program, size: 50000, currentBalance: 50000, currentEquity: 50000, highWaterMark: 50500 }).drawdown.floor; // 48500

Python 3.9+

import sys; sys.path.insert(0, "python")
import prop_firm_rules as pfr

r = pfr.check("apex_intraday_eval", size=50000, current_balance=50000, current_equity=50900, today_pnl=900)
print(r["drawdown"]["floor"])   # 48900.0: the threshold trailed the open-profit peak

python -m unittest discover -s python/tests

evaluate() inputs and outputs

Input	Meaning
program / program id	A program object from the dataset (or an id for check)
size, initial	Account size and starting balance (initial defaults to size)
currentBalance, currentEquity	Now. The lower of the two is compared with each floor (conservative)
todayPnl	Change in equity since the firm's daily reset (closed + open)
dayStartBalance, dayStartEquity	Values at the reset (optional; derived from todayPnl if omitted)
highWaterMark	The high a trailing drawdown trails from (EOD balance, closed balance, or intraday peak)
customDailyAmount	Your own daily limit for programs without a mandatory one (e.g. Topstep's optional add-on)
stopDistance, valuePerUnit, lotStep, bufferPct	Position-size check: largest size whose stop-out keeps you above the tighter floor

Output: daily and drawdown (floor, room, amount, status), maxLots, bindingLimit and an overall status of green (more than 50% of each allowance left), amber (50% or less) or red (20% or less, or breached).

Python uses the same names in snake_case (current_balance, high_water_mark, ...).

Use from AI agents

The same dataset is served live, free and read-only (no key, CORS open, ~60 requests/minute per IP) by FloorGuard:

• MCP server (Streamable HTTP, no auth): https://floorguard-kappa.vercel.app/api/mcp
  • Tools: list_firms, get_rules(program), check_drawdown(program, accountSize, currentEquity, ...)
  • Listed in the official MCP Registry as io.github.kburrus64-max/prop-firm-rules (see server.json).
  • Client config example: {"mcpServers": {"prop-firm-rules": {"type": "http", "url": "https://floorguard-kappa.vercel.app/api/mcp"}}}
• REST API: /api/v1/firms, /api/v1/rules?program=ftmo_2step, /api/v1/check; OpenAPI 3.1 at /api/v1/openapi.json.
• A2A agent card: /.well-known/agent-card.json
• llms.txt: /llms.txt

Informational only, not financial advice; verify every value with the firm.

Static vs trailing drawdown in 30 seconds

• Static: the floor is fixed at initial balance minus the allowance (FTMO 2-Step: $90,000 on $100k).
• Trailing end-of-day: the floor follows your highest end-of-day balance (Topstep MLL, FTMO 1-Step, Apex EOD).
• Trailing closed balance: follows your highest closed balance (E8 dynamic drawdown).
• Trailing intraday: follows your peak including open profit, in real time (Apex intraday).
• Lock: some trailing floors stop rising at a level such as the starting balance (Topstep, E8).

Longer explanations with sources: trailing vs static drawdown, FTMO daily loss rule, same 5% daily loss, different math.

Corrections welcome

Found a rule that changed? Open an issue with the firm's official URL and the quoted text (see CONTRIBUTING.md). Please don't submit values without an official source.

Limitations

• Commissions, swaps, slippage and server-side rounding are not modelled; firms' platforms can differ by a few dollars.
• Account-size lists marked sizesVerified: false were not confirmed on an official page.
• Programs with features this model does not cover (e.g. Blue Guardian funded-account Guardian Shield, consistency rules, news restrictions, payout rules) are noted in notes but not calculated.

License

MIT. The dataset is a compilation of facts from the firms' public pages, with links back to them. Built by the team behind FloorGuard, a prop-account risk guard in development.