Most major companies "hedge" currencies for such volatility - it's one of the excuses used by energy companies to explain why the retail price doesn't match the current wholesale price. I recall once in DE&S an urge to buy a large number of dollars as the ForEx was extremely favourable - I think we were prohibited from doing so. About a year later my PTL was in the queue outside a VSO's office with a price for some aircraft parts that had climbed by a couple of £100K due to currency fluctuations. When asked how it went he said "easy, the poor bas*ard in front of me was trying to explain the multi-£M spike in his Business Case to buy 4 LRIP F-35s.......". Yes, currency can have an effect.....