To understand stock and commodity markets, you need to know who are the important participants. Today the principal ones are index funds, hedge funds, Street proprietary trading funds, mutual funds, the active public, and the inactive public.
For fun and because the classification works in explaining market activity, I group hedge funds, active trading mutual funds and the Street proprietary trading operations together as the Big Evil Funds. Long Term Capital Management was one, as was Amaranth until they blew up; Janus of the 1990s was one, too. I'll going into the "evil" appellation later.
For now, imagine a large group of wild elephants at a water hole. They drink & drink & drain it, then they stop around in the mud for awhile to decide what direction to go to find another water hole. At some point they decide which way to go, and they are off in a stampede to another water hole. If they get there and it's small or dry, they stomp around more & then go off in another direction. You can see the metaphor at work.
The action in the stock & commodity markets since the first of the year is a fine example of the big evil funds at work. I call them "beefers" - derived from "Big Evil Funds" shortened to BEFunds, hence "beefer" - since "beefer" has humorous secondary meanings. Besides being a country term for cattle - hence the herd stampeding, etc. - see the Urban Dictionary for more.
Early in the year they rolled into tech stocks & out of energy. then after a few days - as they realize tech water hole was too small - they all barge out of tech & mill around. Some barge into retail, some back to energy. Always they are searching for more water. The press daily comes up with nonsense about the "market" thinking one thing and then another. Trying to put reasons on this action is silly - it's just beefers searching for a trend, milling around, stomping in the dust. Don't get confused by trying to rationalize this kind of action.
[By the way I started this post on Jan. 14 and finished today, Jan. 22 - I'm learning how the blogger dates posts and wanted to clarify the timing of this post.]