Learn
How 15-minute crypto contracts actually work
Four short lessons. Each states one rule exactly, shows the arithmetic, and quotes the contract terms where they matter.
Lesson 1
Fees
The taker fee formula, why it peaks at 50 cents, why it rounds to a hundredth of a cent, and why makers pay nothing.
Lesson 2
YES and NO are one book
Why a NO order is a YES order in disguise, and why buying both sides can never cost less than a dollar.
Lesson 3
Settlement is a 60-second average
What the contract terms say, and why the last trade you see is not the number that decides the contract.
Lesson 4
A data outage resolves to No
The rule for missing index data at expiry, and why it is a risk every YES position carries at once.
These pages describe contract mechanics as we understand them from the published contract terms and from fills we have checked. The exchange’s own rulebook and fee schedule always win. Check them before you rely on any number here.