I mean, if you just want to be contrarian, watch your holdings for what's going up over whatever period, and sell that --- that's what everyone is buying.

Look over the whole market for whst is going down, and buy that, that's what everyone is selling. Every finance information outlet ever tells you the day/month/year's biggest winners and losers, and most people aren't watching that and taking the contrarian position, or the winners and losers would be pretty boring.