Does Marking-to-Market Occur in Options Trading in the Same Way as Futures?

No, marking-to-market does not occur in the same daily cash-settlement way for options buyers. An option buyer pays the premium upfront and has a limited loss potential (the premium paid), so their position is not marked-to-market daily.

However, for an options seller (writer), the position is marked-to-market daily. Since a seller has unlimited loss potential, their margin account is adjusted daily to reflect changes in the option's value, and they are subject to margin calls.

Why Do Options Contracts Typically Have Different Margin Rules for Buyers versus Sellers?
What Is the Fundamental Difference between Buying and Selling an Option Contract in Terms of Risk Exposure?
How Is the Margin for a Written Option Calculated?
How Does “Marking to Market” Apply to Futures Contracts but Not Standard Options?
How Does High Vega Affect the Risk for Option Buyers versus Sellers?
Does the Exercise of a Physically-Settled Option Require MTM?
In Options Trading, How Does the Concept of Margin Differ for Buyers versus Sellers?
How Do Margin Requirements for Options Contracts Differ from Futures Contracts on These Platforms?

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