PropGuard Lite - daily and max loss guard for prop firm accounts - sistema esperto per MetaTrader 5

PropGuard Lite is a risk tool for prop firm accounts (FTMO and similar) and for anyone who wants a hard stop on bad days. On a live or demo chart it never opens trades.

What it does

It watches account equity, including floating P/L. When a limit is reached it:

• closes all positions (or only the positions with one magic number), oldest first,
• deletes pending orders,
• keeps closing anything that opens later. A daily halt lasts until the next trading day. A max-loss halt lasts until you reset it.

Main features

• Daily loss limit: a % of the initial capital (FTMO style) or a % of the day-start reference.
• Day-start reference: the balance at day start, or the higher of balance and equity at day start.
• Max (overall) loss limit: a % of the initial capital.
• Safety buffer: the guard acts a little before the real limit, to leave room for slippage.
• Day reset time: set the hour and the firm's time zone offset from the server.
• Restart-safe: the day-start balance is rebuilt from deal history on every check, so restarting the terminal, recompiling or a VPS sync does not reset the day. Halt states are stored in terminal global variables.
• Chart panel: current reference, floors, remaining room, and counters for closes and failed closes.
• CSV log (MQL5/Files/PropGuard_log.csv) with every halt, close and failure and its retcode.
• Push notification to the MT5 mobile app (optional).
• Built-in self-test (InpRunSelfTest=true): checks the day-boundary and limit math against known answers and writes PropGuard_selftest.txt.

Input parameters

• InpInitialCapital: initial account size (e.g. 100000). 0 = auto: the first deposit in the account history. Auto is only used if the balance now is between 0.5x and 2x of it; otherwise the guard warns you and does not check limits until you set this input.
• InpUseDaily: enable the daily loss limit.
• InpDailyLossPct: daily loss limit, %.
• InpDailyBase: the daily % is taken from the initial capital or from the day-start reference.
• InpDayRef: day-start reference: balance, or the higher of balance and equity.
• InpResetHour: day reset hour in the firm's time zone (0-23).
• InpServerMinusResetTZ: server time minus the firm's time zone, in hours (0 if the same).
• InpUseMaxLoss: enable the max (overall) loss limit.
• InpMaxLossPct: max loss, % of the initial capital.
• InpClearMaxLossHalt: set to true once to clear a saved max-loss halt, then set it back to false.
• InpBufferPct: act this % of capital before the limit.
• InpScope: close all positions, or only one magic number.
• InpMagic: the magic number when InpScope = magic (0 = manual trades).
• InpDeletePending: delete pending orders when halted.
• InpDeviationPoints: max slippage when closing, in points.
• InpPush: push notification to the MT5 mobile app.
• InpShowPanel: show the status panel in the chart corner.
• InpRunSelfTest: run the self-test at start.
• InpTesterDemo: Strategy Tester only. Opens demo trades (about 10x notional, one every 4 hours, alternating buy/sell) so you can watch the guard halt and close them. It has no effect on a live or demo chart.

Quick setup (FTMO-style 100k example)

• InpInitialCapital = 100000 (set it yourself for a prop account)
• InpDailyLossPct = 5, InpDailyBase = % of initial capital
• InpDayRef = balance at day start (or "higher of" if your firm uses it)
• InpResetHour = 0, InpServerMinusResetTZ = server time minus your firm's time zone
• InpMaxLossPct = 10
• InpBufferPct = 0.5 (acts about 500 before the limit)

Strategy Tester

The guard does not trade, so in the tester InpTesterDemo opens demo trades to give it something to watch. The tester report shows those demo trades: they are not a strategy and their result means nothing.

Run one copy only

Turn Algo Trading ON in the terminal where the guard actually runs. If you migrate it to an MQL5 VPS, turn Algo Trading OFF in your local terminal, otherwise the local copy and the VPS copy both act on the account. On a terminal where Algo Trading is off, the panel says so: that is normal when the guard runs on the VPS.

Honest limits

• It cannot switch off other EAs. While halted, it closes whatever they open.
• If the server and the firm's time zone change daylight-saving time on different dates, adjust InpServerMinusResetTZ for those weeks.
• The "higher of balance/equity" reference needs the EA to be running at the reset moment. If it was not, the panel shows the balance reference as "estimated".
• When the market is closed, closes fail. They are retried and logged.
• Read your firm's own rules: this tool helps you stay inside them, it does not replace them.