Start With Good Data or End With Garbage

Building Crypto Systems

When you’re building systems in crypto—or any market—the data you use is everything. This week, I dive into the difference between clean, survivorship-bias-free data and the kind of sketchy stuff that makes your backtests look genius until your money’s on the line.

With equities, I rely on Norgate because it includes critical delisted and bankrupt tickers—everything that didn’t work. Without that, you’re only testing on the winners, which builds fantasy-land systems that fall apart live. Crypto’s even messier. Thousands of coins have pumped, dumped, and vanished. If your dataset doesn’t include the ones that died, you’re not testing reality.

Enter Robux.io, a provider that plugs into Binance Futures data and actually keeps the delisted trash in the mix. No affiliate, just credit where it’s due. For anyone using RealTest or building serious crypto systems, it’s a solid base layer.

The lesson? Garbage in, garbage out. Don’t waste time tuning a system on flawed data. That slick equity curve won’t feed your kids—or your subscribers.

Get clean data. Build systems on it. Then maybe we can talk about performance.

Full series continues next week.

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