In terms of vs btc the value is going down yes, but in terms of usd it's more or less the same. After bitcoin is done with all this hardforking I think the altcoin market will pick up again.
Hope so, the trend is worrying in the long term for the entire crypto market.
The idea is being built more and more around the consensus that only bitcoin's the real value in the cryptomarkets and that's where the money's flowing making altcoins less and less worthy and focus of interest by the markets.