Should I build my own prop firm software?

What building involves:

• Real-time price ingestion and charting.
• Order types, margin, profit and loss calculation.
• A rule engine that is correct under concurrent orders and fast markets.
• Account administration, credentials and sessions.
• Mobile and browser front ends.
• Monitoring, scaling and security.

Hidden difficulty: details such as how a daily loss limit treats a floating loss carried across midnight, or how two simultaneous orders interact with a position limit. These cause disputes if done wrong.

Buying lets you start with those decisions already made and documented. PropExecutor's one-time price means buying does not lock you into a monthly bill if you later decide to build your own.

When building makes sense

• You have reached scale and a technical team.
• No provider supports a feature central to your product.
• Platform cost has become a large share of revenue.

Even then, many firms build around a bought core rather than replacing it.