Well you can see it right here, Bitcoin surges and most other alt coins plunge, except a couple that have seen a slight price hike. So what can we expect after the hard fork?
Apparently what is happening right now is a lot of people are dumping there alt coins in order to buy BTC and be there when the hard fork happens and gain some of that Bitcoin Gold. If this is so, after the hard fork BTC should see a slump in price and people will probably start investing in the different alt coins.
Steem is the one I see that is having the most ups and downs, but always within the same range, better said it is practically stagnant, if a lot of people are powering down I am afraid we will see Steem go down in price for a good while, or at best stay at where it is right now.
If it were tied to BTC any decrease in BTC price would most likely see Steem rise in price but as far as I can tell it is more closely linked to the USD.