Bad news for Cash is that there're no USD markets, so the only way to sell is to dump against BTC.
Ethereum for instance is much more stable during the current dumps because it can be traded for USD.
European bitcoin exchange Bitstamp announced it will add bitcoin cash trading pairs by the end of September.
In the announcement, Bitstamp said they decided to add support for bitcoin cash in response to high levels of customer demand. Exchange users who had bitcoin balances at the time of the August 1 hard fork will receive their air-dropped coins in their platform wallet.
Additionally, bitcoin cash will receive three Bitstamp trading pairs: BCH/BTC, BCH/USD, and BCH/EUR. The Euro pair is a particularly beneficial for the bitcoin cash community, since this trading pair currently has only about $4 million of liquidity, and virtually all of that is concentrated on Kraken.