USD. Not an asset as such but certainly one of the top 5 crowded trades 2015.
Sovereign bonds, bonds, bonds, everywhere.
US equities , less than EU and Japan.
Commodities have already been unwinding for months.
And possibly the most underrated of all, trust in the central bankers. QE and ZIRP is not the market saviours the mainstream media make it out to be. Central bankers have been failing (Swiss) and many more will still. Let's call it a trust bubble.