How these pages are made

Every comparison page is generated by software that reads each venue's published contract rules and prices, extracts the economic terms deterministically, and compares them field by field. No page is written by hand, no model guesses at meaning, and a pair is called the same bet only when the published terms match on every field and both venues' settlement terms are complete.

The system behind it is a paper-only research instrument. It has never placed a trade, and its research record — including four pre-registered hypotheses that each returned a negative result — is public. That record is the reason to trust a page that says "not verified": the instrument is built to say no.

What is and isn't here

• Facts about published rules, fees, legal filings, and program terms — with sources and dates.
• No picks, no probabilities, no strategies, no advice.
• Affiliate relationships, disclosed on every page, that never affect a verdict.