Segwit has not been released. You are doing an inadequate amount of reading. The code for Segwit has been released and merged. It will most likely come with the next Bitcoin Core version (0.12.2/3).
Well even if it hasn't been released, I think it has already had an impact on the price. On the testnet, segwit has proven to mine blocks higher than 3MB already, clearing any doubts of bitcoin scaling or not. It has also straightened the value of the Core devs even more, and has definitely killed the Core-Classic controversy, since Core devs are obviously the guys making the real advances. All of the good improvements in tech + the halving are going to make the price go to jupiter.