AC stock short op?
I don't know much about stocks/investing as I'm in healthcare and trust that stuff to other professionals, but if AC does not purchase and thus control all the pending AE miles waiting to be redeemed before 2020, would its stock suffer?
i.e. how much do AE redemptions account for AC flights and if that increases (as it very likely will) does that hurt the bottom line? Redemptions would mostly be in premium cabins where they make the most revenue.