The US company I work for recently went public, however the powers that be chose to do the IPO on the Australian Stock Exchange (ASX). I am based in the United States.
My stock option strike price is quoted in USD, but the stock is quoted on ASX as AUD.
These are Incentive Stock Options that I intend to exercise for long term holding, so this is initially for AMT calculation in USA.
When I file my AMT, and down the road for capital gains taxes, what exchange rate and on what date to I use to calculate the basis and capital gains as well as the bargain element for AMT.