What is the difference between weekly and monthly US index options?
BiyaPay
Published on 2026-02-12 Updated on 2026-02-12
Generally speaking, weekly options are P.M. Settlement (the last trading day is the expiration date, and the settlement value is calculated based on the underlying contract price after market close on the expiration date); monthly options are A.M. Settlement (the last trading day is T-1 of the expiration date, and the settlement value is calculated based on the underlying contract price after market open on the expiration date).
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BIYA GLOBAL LLC is a licensed entity registered with the U.S. Securities and Exchange Commission (SEC No.: 802-127417); a certified member of the Financial Industry Regulatory Authority (FINRA) (Central Registration Depository CRD No.: 325027); regulated by the Financial Industry Regulatory Authority (FINRA) and the U.S. Securities and Exchange Commission (SEC).
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BIYA GLOBAL LLC is registered with the Financial Crimes Enforcement Network (FinCEN), an agency under the U.S. Department of the Treasury, as a Money Services Business (MSB), with registration number 31000218637349, and regulated by the Financial Crimes Enforcement Network (FinCEN).
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BIYA GLOBAL LIMITED is a registered Financial Service Provider (FSP) in New Zealand, with registration number FSP1007221, and is also a registered member of the Financial Services Complaints Limited (FSCL), an independent dispute resolution scheme in New Zealand.
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