Interpreting P&L and Value in an FX Options Portfolio

Summary

The document asks whether adding the individual option P&Ls in a foreign exchange options book gives the portfolio value. Its brief answer says yes and notes that foreign exchange markets can move around the clock, making ongoing exposure monitoring important.

The exchange does not define the P&L convention or valuation point, and it gives no worked example. P&L generally describes a change in value relative to a chosen starting point, whereas portfolio value is the current marked value of the positions; these quantities coincide only under particular definitions or accounting conditions. The answer therefore offers a limited warning about continuous market exposure rather than a general derivation of the relationship between aggregate P&L and portfolio value. Readers need the book’s valuation and reporting conventions to interpret the claim.

Key ideas

• The document asks whether summed option P&L equals the value of an FX options portfolio.
• Its answer stresses that foreign exchange prices can fluctuate continuously, so exposure requires active monitoring.
• It does not define P&L or portfolio value, leaving the claimed equality dependent on conventions not discussed.

Tags

# In a FX options book, is the sum of P&L equal to the portfolio value?


# In a FX options book, is the sum of P&L equal to the portfolio value?












For a portfolio containing FX options, would the sum of P&L for each option be the portfolio value?

## Answer by arodrisa (score 0)

https://quant.stackexchange.com/a/15501

Yes, and as the FX market is suposed to never close, it can fluctuate 24/7, which makes it dangerous if you are not really aware of your exposure.

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