We exist because most prop firm rankings are dishonest.

Delta-Z is a trader-grade directory of proprietary trading firms. We compare firms by the rule schemas that actually determine whether a trader passes or fails — not by the marketing copy on the firm's homepage.

Most directories rank by headline split percentages and call it a day. A 90% split means nothing if the firm enforces a consistency rule that's buried in the T&Cs sub-clauses, or if the drawdown trails daily on a 1-second tick, or if payouts take 14 business days while the affiliate banner says "same-day." We surface those details up front because they're what kills accounts.

Every firm we track ships through the same pipeline: a Playwright scrape that captures the live pricing page, a snapshot store that preserves what the firm advertised on a given date, a structured rule schema with 14 signals, and a review system that requires email verification so a single sock-puppet account can't move the trust score.

We're built as a long-running project — the value compounds with every snapshot, every rule change detected, every verified review. The data moat is the moat.