Bitstamp is the way.
Things on stamp can change quick... It is a liquidity provider for many other companies.
They are actually no longer a liquidity provider and have resorted to wash trade bots in order to make it seem like their exchange has volume and is still relevant.
I dont think they ever recovered since their hack when most traders left their platform and moved elsewhere.
Sources:
https://bitcointalk.org/index.php?topic=1205564.0
https://www.reddit.com/r/BitcoinMarkets/comments/3lwnyn/the_state_of_trading_in_the_bitcoin_markets/
https://www.reddit.com/r/BitcoinMarkets/comments/3okvda/bitstamp_the_new_okcoin_20_volume_manipulators/