ProShares Trust Ultra VIX Short Term Futures ETF (UVXY)

[Citrati]

Found this interesting regarding tapering.

One point in favor of this argument is that someone placed a whale of a bet on SPY puts that expire on Sept 3rd which is the first expiry date after the Jackson Hole meeting...the large trader bought 25,000 $440 strike puts and financed part of the trade by selling $425 puts... the bet implies at least a 4% rapid correction ....according to Barron's.

So, some big FAT CAT is loaded for BEAR in the next 2 weeks! A $10.6million bet.