As etherium is decreasing, so can we have a reason behind that and what are the future expectations.
As prior posters have noted, it's fallout from The DAO hack sinking in. Both fell at the time, but ETH was essentially bailed out by Bitcoin's pump; that muffled its fall in fiat terms. To be honest, I was wondering why it held at ~$12 until today.
Just goes to show you, some bad news (news with bad implications over a longer term) is only partially priced into the market when it spreads.