(Short) Trade of The Week on Aviva

I reckon it's been more than a week since I last posted a "Trade of The Week", and this one is different in two respects:


It's a short trade, which is pretty unusual for me considering my predominantly-long position trading approach.
I'm documenting it in advance rather than after-the-fact, so I really have no idea how it will turn out.


My rationale is that, according to the Capital Spreads