Explore the latest free tools from the MQL5 community. Here's a new indicator, expert advisor, or script for MetaTrader.

Most MT5 traders size each position on its own and never see how their open (or planned) positions interact as a portfolio. Two instruments that look independent can move almost identically during the same news event, and a set of "small" positions can silently add up to a dangerous share of account equity in combined margin.
Smooth out market noise with the Heiken Ashi Expert Advisor for MT4 and MT5. Reliable trend-following automation. Details here.
The indicator reads a comma-separated list of symbols and lot sizes and prints a full report in the Experts tab and, optionally, on the chart itself:
- Pairwise correlation matrix — Pearson correlation between the historical bar-to-bar returns of every pair of instruments, over a configurable lookback and timeframe.
- Average pairwise correlation — a single number summarizing how diversified (or concentrated) the set is.
- Combined estimated margin — the total margin your broker would require to open every listed instrument at its given lot size, in account currency.
- Deposit load — that combined margin as a percentage of current account equity, with a one-time alert when it crosses a threshold you set.
Input. Set InpSymbols (e.g. "EURUSD,GBPUSD,XAUUSD,USDJPY") and InpLots (e.g. "0.10,0.10,0.10,0.10") as comma-separated lists, same order, 2 to 10 instruments. Each symbol is auto-added to Market Watch if it is not already there.
Parameters. InpTimeframe and InpLookbackBars control the return series used for correlation; InpMarginWarnPct sets the deposit-load alert threshold; InpRefreshSec sets how often the report recalculates; InpShowPanel toggles the on-chart Comment() panel.
The tool is written in pure MQL5. It needs no external libraries, no Python, and no DLLs — everything runs natively inside MetaTrader 5.
Built by the team behind AbacuQuant, an audited multi-strategy copy-trading platform for MT5 that runs diversified portfolios across uncorrelated instruments with a 24-month verified track record.
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