Brokey For Amibroker May 2026

Let’s say you are trading E-mini S&P 500 futures.

// Simple Brokey-like check: flags bars with non-positive or NaN close
bad = (Close <= 0) OR IsNull(Close);
if (LastValue(Sum(bad, BarCount)) > 0)
printf("%s has %d bad bars\n", Name(), LastValue(Sum(bad, BarCount)));

If you are an AlgoTrader or a systematic trader using Amibroker, you know the golden rule: Your backtest is only as good as the data you feed it.

We have all been there. You run a backtest on a portfolio of stocks, and the equity curve looks like a straight line to the moon. You think you’ve found the "Holy Grail," only to realize later that the strategy is worthless. brokey for amibroker

Why? Because your data had holes in it.

Today, we are looking at a critical concept in the Amibroker community often referred to as "Brokey" (or the process of detecting broken/missing data keys). We will explore what it is, why it destroys trading strategies, and how to use Amibroker’s native tools to fix it. Let’s say you are trading E-mini S&P 500 futures

Interpretation:

Optimization (Parameters):

Even with Brokey, users make mistakes. Here are the top three:

To implement Brokey for AmiBroker, you need data. Here is where to find it: If you are an AlgoTrader or a systematic

Recommendation: Pay for Norgate if you are serious. It includes the “Delisted Flag” as a built-in field. Then, use Brokey scripts to handle the response to that flag.