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Comparing Net Credit Option Trades with Capital-Based ROI

Article Quant Q&A · Author: user548084
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Summary

The document asks how to compare options with positive or negative net credits and estimated expected values, including credit trades and a debit trade. Its brief answer defines a simple return measure for a short option position: divide the premium received by the margin required to carry the trade, then annualize for the holding period.

This measure uses required margin as the capital base, but it does not by itself compare the trades’ expected profitability or risk. The examples do not provide the payoff distributions, maximum losses, holding periods, or actual margin requirements needed to make a fuller comparison. Margin can also vary across brokers and market conditions. The document offers no worked calculations or evidence that this ratio is a sufficient decision metric; it is best read as a narrow capital-return measure, not a complete risk-adjusted comparison.

Key ideas

  • A simple ROI for a credit option position divides the credit received by the margin required to maintain it.
  • Annualizing the ratio requires the trade’s holding period.
  • A credit-to-margin ratio does not show expected value or the distribution of possible outcomes.
  • Comparing trades also requires information about risk, duration, and capital requirements.

Tags

OptionsRisk managementPosition sizing
Full text
# How to calculate ROI on a net credit option transaction?


# How to calculate ROI on a net credit option transaction?












If I have an option that has a net credit and results in a positive expected value (based on my own estimates of volatility), how do I calculate an ROI in order to compare with a net debit credit options?

- Option 1: Net Credit +5 EV +1

- Option 2: Net Debit -1 EV +10

- Option 3: Net Credit +5 EV -1

Is there another metric that is better equipped to make the comparison between these? Is there information that is missing that is needed to make this comparison?

## Answer by baerrus (score 1)

https://quant.stackexchange.com/a/30228

To calculate ROI of an option(s) sold for a credit you divide the credit received by margin you must maintain to carry that position.Then do not forget to annualize that number.

Shown in full with attribution under the source's licence. Licence: CC BY-SA 4.0 (Stack Exchange)

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.