Northline Prop Shield

Protect your prop firm account with the real rules of your program. Before every order, Prop Shield assumes that all your stop-losses are hit at the same time, and it only lets you trade what still keeps you above your safety line. Official daily and max-loss rules of 20 programs, consistency tracking, challenge objectives, a daily push recap and a one-click order panel.

OVERVIEW

Most prop firm challenges are not lost because of a bad idea. They are lost because of one rule: the daily loss limit computed from a base you did not expect, a trailing drawdown that moved after a winning day, a reset at a time that is not your broker's midnight, a second trade opened while the first one was still at risk, or a best day that breaks the consistency rule.

Northline Prop Shield is an Expert Advisor for MetaTrader 5 that knows the exact rules of your program and enforces them on your account in real time. It combines three layers:

1. The rules. 20 ready-made programs from FTMO, FundingPips, The5ers, FundedNext, E8 Markets, Alpha Capital and Blue Guardian, built from each firm's official rule pages (verification date shown in the EA), plus a fully custom mode.
2. The pre-trade check. Before an order is sent, the worst case of everything already open is added up: every stop-loss of every position and every pending order, fees included. The new trade can only use the room that is left after that worst case.
3. The guard. If equity reaches your Shield line (the firm's limit plus your own safety margin), new orders are blocked and, if you want, every position and pending order on the account is closed until the next reset.

WHAT MAKES IT DIFFERENT

• The exact daily base of your firm. Daily loss can be computed from the balance at the reset, from the higher of balance and equity at the reset, or from the equity at the reset, as a percentage of the initial account size or of that base. Each program uses its own combination - Prop Shield uses the right one.
• The firm's own clock. The daily reset follows your firm: midnight Prague time (CE(S)T), a fixed UTC offset, 17:00 New York, or the broker server - with daylight saving handled for every past deal, not only for today.
• Every max-loss model. Static, trailing on the highest end-of-day balance, trailing in real time on the highest closed balance, with or without the lock at the initial balance. For trailing-on-closed-balance programs, the pre-trade check even accounts for the floor that rises when a winning stop-loss is hit.
• A real pre-trade worst case. Not just "risk 1% per trade": open positions, pending orders, commissions (detected per symbol) and the stop-loss of the new order are all counted together. The panel shows the maximum lot you can still open.
• Consistency rule, before it is too late. For programs with a best-day rule (for example 50% for FTMO 1-Step), the panel shows your current ratio, the profit still needed on other days, and how much more you can still close today. A warning appears if your take-profits would go beyond today's allowance.
• No silent failure. If the account size is unknown, the Shield says "not armed" and blocks orders instead of protecting half-way. If a position has no stop-loss, the worst case is unlimited and new orders stay blocked until you fix it.

FEATURES

Protection

• 20 programs + Custom: daily loss %, daily base, max loss % and type, trailing lock, reset clock and hour, profit targets per phase, minimum trading days, profitable days, consistency
• Your own safety margins above the daily and max-loss limits (% of account size)
• Warning when a chosen share of the budget is used, then block (and optional close-all) at the Shield line
• Account-wide: the whole account is protected, whatever the magic number or the EA that opened the trade
• Trades opened outside the panel (another EA, mobile app, one-click trading) are watched: alert, or optional strict mode that cancels pending orders and closes the newest position whose worst case crosses the Shield line
• Positions without a stop-loss detected and reported
• Equity at the reset recorded while the EA runs; safe estimation and a clear flag when it was not running at the reset
• Deposits and withdrawals of the day excluded from the daily base and flagged

Challenge objectives

• Phase 1, phase 2 or funded: the right profit target is used
• Progress line: target %, trading days, profitable days, consistency
• Daily recap as a push notification on your phone (MT5 app): P/L of the day, progress, room left - once per trading day, never on weekends
• Push alerts on warning, daily line, max-loss line (anti-spam)

Order panel

• Risk in % of balance, sized on the room left after the worst case
• Stop-loss modes: manual line, ATR, market structure, points
• Up to 5 take-profits with partial close %, by R multiple, gap or free lines that you drag on the chart
• Market, limit and stop orders, with confirmation before sending (re-checked after you confirm)
• Break-even that covers spread and commission, trailing stop
• Positions list with close / break-even per take-profit leg, close all
• Settings window (read-only summary of the protection, so it can never be changed by accident)

HOW TO USE IT

1. Attach Northline Prop Shield to one chart of the prop firm account (one instance per account is enough - it protects the whole account).
2. In the inputs, choose your program and your phase. Leave "account size" at 0 to detect it from the first deposit, or type it.
3. Set your safety margins (default: 0.5% of the account size above the daily limit, 1% above the max-loss limit).
4. Trade from the panel, or keep trading your own way: the Shield watches the whole account in any case.

Allow algorithmic trading and, for push notifications, enter your MetaQuotes ID in MT5 (Tools > Options > Notifications).

PROGRAMS INCLUDED (rules verified 2026-10-12)

FTMO 2-Step, FTMO 1-Step (current and before 2026-10-12), FundingPips 2-Step Standard 5% and 3%, FundingPips 2-Step Pro, FundingPips 1-Step Flex 3%, The5ers High Stakes (up to 25k and 50k-100k), The5ers Pro Growth, The5ers Hyper Growth, FundedNext Stellar 2-Step, 1-Step and Lite, E8 One, E8 Pro, Alpha Capital Pro 8%, Alpha Capital One 10%, Blue Guardian 1-Step Nano, Blue Guardian 2-Step Standard, and Custom for any other program.

IMPORTANT - HONEST NOTE

Northline Prop Shield is a risk management tool. It does not trade for you and it does not promise any profit. It is not affiliated with, endorsed by or approved by any prop firm. Firms change their rules: always check the current rules of your own account (the verification date is shown in the EA) and use the Custom mode if your program differs. The Shield acts on prices it receives: a market gap, slippage, a disconnected terminal or a stop-loss that is not executed by the broker can still produce a larger loss - this is why your safety margins exist. Keep MetaTrader running (a VPS is recommended) for the protection and the daily snapshot to work. In the Strategy Tester the EA opens one demonstration trade per day through the panel so that you can watch the Shield at work - it is not a trading strategy.

SUPPORT

A question, a firm or a program you would like to see added? Send me a message - I answer quickly and I keep the rules up to date.