Free diagnosis · Paid upfront · Full refund if I can't fix it
Your strategy compiles but never enters. It trades live at different times or prices than in the Strategy Analyzer. It disables itself after a reconnection. It doesn't place the stop where it should. If that sounds familiar, you're not alone: these are the most common NinjaScript failures in the world — and they can almost always be fixed.
I repair NinjaTrader 8 strategies and indicators. It doesn't matter if the code is yours, from a programmer who stopped replying, or from a vendor who disappeared: if you have the .cs file, I can work on it.
Symptoms I fix
Doesn't place the stop loss or take profit, or places them in the wrong spot
Trades live differently than in the Strategy Analyzer or Market Replay
Works in demo but does strange things on a live account
Disables itself after a reconnection, a holiday or the weekend
Keeps positions open that it shouldn't have, or doesn't close at session end
The backtest changes depending on the data series or timeframe
Indicators that repaint or calculate differently on historical vs real-time data
What I fix (and what I don't)
Strategies and indicators in NinjaScript, the NinjaTrader 8 language. Your own or bought from third parties: as long as you can send me the source code (.cs), I can repair it. The only thing I can't touch is compiled or protected DLLs without source code — by design, nobody can do anything serious there. If your strategy came from a vendor, also check that your license allows modifications.
How it works
1. You send me the .cs
And tell me what you expected it to do and what it does wrong. NinjaTrader Log screenshots help a lot if you have them.
2. Free diagnosis
I review it and tell you what's failing, whether it can be fixed and what it would cost. No commitment. If the problem is the strategy's logic rather than the code, I'll tell you that too — before charging you a cent.
3. Fixed quote
A fixed price after the diagnosis. Payment is upfront, and the guarantee runs the other way: if I can't fix it, you get a full refund, no questions asked.
4. Delivery with an explanation
You get the corrected code plus an explanation of what was failing and why, so you understand your own tool and know exactly what was touched.
💶 Pricing: free diagnosis · repairs from €150 · fixed quote (VAT included), paid upfront. If I can't fix it, full refund.
A real case
A client came with a night-session strategy bought from a third party: the exits used the wrong calls and the code didn't validate prices before sending orders, so it entered late and exited in the wrong places. Diagnosis, corrected exits, price validation and a new parameter to control late entries. Delivered hardened and working — and their review is on Trustpilot.
What I don't do
I repair the code, not the profitability. If your strategy loses by design, after the repair it will lose exactly as designed — but at least you'll know that what you see is your real logic, not a bug. I don't promise results, I don't "optimize" curves to make backtests look pretty, and if the problem is conceptual, I'll say so plainly.
Frequently asked questions about the repair service
Diagnosis is free. Repairs start at €150 with a fixed quote (VAT included). Payment is upfront once you accept the quote, and if I can't fix it, you get a full refund.
Transparency: the repair ends when I deliver the code, and once delivered there is no way to guarantee payment. So the order is: free diagnosis → fixed quote → payment → repair → delivery with an explanation. And the guarantee runs the other way: if I can't fix it, full refund.
Yes, as long as you have the .cs file (the source code) and your license allows modifications. If you only have a compiled or protected DLL, it can't be worked on — by design, nobody can.
The most common causes: calculations on forming bars, optimistic backtest fills, different data series or session templates, and reconnection handling. I wrote a full guide on this: why your strategy trades differently live.
Yes. Strategies and indicators, as long as they are NinjaScript (.cs) for NinjaTrader 8.
Yes. Your code is not shared, not reused, and never ends up in any InverMind product. It is used only for your repair.
The .cs file, a description of what it should do and what it does wrong, and — if possible — screenshots of the NinjaTrader Log (Log tab in the Control Center).
Diagnosis usually within 24–48 hours. The repair deadline comes with the quote; most repairs are delivered within a few days.
Strategy failing? Send it over
Free diagnosis within 24–48h. Attach the .cs and tell me what it does wrong.
Don't have NinjaTrader 8 yet? It's free for simulation and backtesting.
Download it here →
Risk Disclosure: Futures and forex trading involves substantial risk and is not appropriate for all investors. An investor could potentially lose all or more than the initial investment. Risk capital is money that can be lost without jeopardizing one's financial security or lifestyle. Only risk capital should be used for trading and only those with sufficient risk capital should consider trading. Past results are not necessarily indicative of future results.
Hypothetical Performance Disclosure: Hypothetical performance results have many inherent limitations, some of which are described below. No representation is being made that any account will or is likely to achieve profits or losses similar to those shown. In fact, there are frequently sharp differences between hypothetical performance results and the actual results subsequently achieved by any particular trading program. One of the limitations of hypothetical performance results is that they are generally prepared with the benefit of hindsight. In addition, hypothetical trading does not involve financial risk, and no hypothetical trading record can completely account for the impact of financial risk in actual trading. For example, the ability to withstand losses or to adhere to a particular trading program in spite of trading losses are material points which can also adversely affect actual trading results. There are numerous other factors related to the markets in general or to the implementation of any specific trading program which cannot be fully accounted for in the preparation of hypothetical performance results and all of which can adversely affect actual trading results.
NinjaTrader® NinjaTrader® is a registered trademark of NinjaTrader Group, LLC. No NinjaTrader company has any affiliation with the owner, developer, or provider of the products described here, nor has any interest in, or provides any recommendation for the products or services described.
Want to see this logic running with real money? Check the ORB strategy and its live-account results, published week by week — losers included.
