Looking to Buy a Proven Quantitative Portfolio EA – $5,000–$15,000 + $1,000 Annual Maintenance

Hello developers and quantitative traders,

I am looking to purchase a license for an EXISTING, professionally developed MT5 quantitative portfolio Expert Advisor with a long-term, independently verifiable trading history.

Purchase budget: $5,000–$15,000 USD

Additional annual maintenance fee: $1,000 USD

I am willing to establish a long-term commercial relationship with the developer.

IMPORTANT: I am NOT looking for someone to develop a new EA from scratch. I am looking for an existing, thoroughly researched and validated portfolio trading system.

I do not require source code, exclusive ownership, or intellectual property rights. A compiled EX5 license is sufficient.

1. PORTFOLIO REQUIREMENTS

The EA must:

• Combine multiple distinct trading strategies into one portfolio.

• Demonstrate low correlation between individual strategies, preferably measured using daily returns.

• Use proper portfolio-level risk management.

• Control total floating exposure and portfolio drawdown.

• Avoid excessive concentration in individual instruments or market conditions.

• Demonstrate reasonable performance across different market regimes.

I am NOT looking for a single strategy disguised as a portfolio by trading multiple currency pairs.

The strategies should have genuinely different sources of trading returns.

2. VERIFIED LIVE TRADING HISTORY

These requirements are mandatory:

• Minimum 4 YEARS of verifiable live trading history.

• Minimum 2,000 closed live trades.

• A REAL trading account, not merely a demo account.

• The live history must represent the same portfolio system being offered.

• Complete historical results, including losing periods and drawdowns, must be available.

• Screenshots alone are NOT accepted as proof.

Preferred verification method:

Investor/read-only access to the trading account at a reputable broker.

Alternatively, a publicly verified MQL5 Signal, Myfxbook, FX Blue, or equivalent independent tracking service is acceptable.

The complete trading history must remain available for verification.

3. HISTORICAL BACKTEST AND WALK-FORWARD VALIDATION

I require:

• At least 15 years of historical backtesting.

• Minimum 5,000 closed trades in the historical portfolio test.

• Realistic spreads, commissions, slippage and execution assumptions.

• Proper walk-forward optimization and validation using rolling or expanding windows.

• Out-of-sample periods that are genuinely separated from optimization periods.

• A combined walk-forward OOS equity curve including ALL consecutive test periods, not only selected profitable intervals.

• No look-ahead bias, future-data leakage or unrealistic execution assumptions.

I am particularly interested in systems where parameters were optimized on historical in-sample windows and subsequently evaluated on unseen out-of-sample windows.

The developer should be able to explain the walk-forward methodology and provide supporting reports.

A single highly optimized 15-year backtest without proper validation is NOT sufficient.

4. RISK MANAGEMENT

I am NOT interested in:

• Martingale systems.

• Unlimited or dangerous grid trading.

• Recovery systems based on continuously increasing position sizes after losses.

• Strategies hiding substantial floating losses behind smooth balance curves.

• Excessive leverage or uncontrolled portfolio exposure.

• Systems depending on unrealistic execution conditions.

Controlled multi-entry strategies may be considered if their maximum combined risk is clearly defined and limited.

Portfolio-level risk management is essential.

5. WHAT YOU MUST PROVIDE

Please include the following in your initial proposal:

1. A brief description of the portfolio EA.

2. Number and general types of strategies included.

3. Instruments traded.

4. Link or access to the verified 4+ year REAL live trading history.

5. Evidence of at least 2,000 closed live trades.

6. Complete historical backtest report covering at least 15 years.

7. Description of the walk-forward validation methodology.

8. Maximum historical balance and equity drawdown.

9. Explanation of portfolio risk management.

10. Your proposed price for one compiled EX5 license.

If you are not the original developer, you must demonstrate that you are legally authorized to sell the EA.

Do not submit another developer's live trading history as proof of your own product.

6. PAYMENT AND LONG-TERM SUPPORT

Initial purchase: $5,000–$15,000 USD

The final price will depend on the quality, robustness, longevity and independent verifiability of the results.

In addition to the purchase price, I am offering:

$1,000 USD per year for ongoing maintenance and technical support.

Annual maintenance should include:

• Bug fixes.

• Compatibility updates for MetaTrader 5.

• Reasonable technical support.

• Assistance with installation and configuration.

• Maintaining the technical functionality of the EA.

Annual maintenance does not require guaranteed trading profitability.

I do not require your source code.

I do not require exclusive ownership.

You may continue selling your EA to other customers.

I am interested in purchasing one legitimate license for an existing, proven quantitative portfolio system.

7. IMPORTANT – PLEASE READ BEFORE APPLYING

Please DO NOT apply if:

• You want to develop a new EA for me.

• Your EA has only a few months of live history.

• You cannot provide independently verifiable live results.

• Your system is based on martingale or uncontrolled grid recovery.

• You only have optimized backtests without meaningful OOS validation.

• You are offering a single strategy instead of a diversified portfolio.

• You cannot demonstrate that the advertised results belong to the EA being offered.

I am not looking for guaranteed profits or a magical trading system.

I understand that every legitimate strategy experiences losing periods and drawdowns.

I am looking for a professionally developed quantitative portfolio EA supported by substantial historical evidence and long-term live trading results.

The budget is genuine: $5,000–$15,000 USD, plus $1,000 annually for maintenance.

If you already own an EA meeting ALL these requirements, there is no need to develop anything new.

Simply provide the existing verification links, backtest reports and portfolio information.

I am ready to pay a serious price for a serious, independently verifiable trading system.