There will now be two separate versions of the blockchain (Bitcoin) with a shared history (assuming all goes well Aug. 01). This smaller version represents 20% of the actual market BTC value. Basically acting like a cash future.
Bitcoincash.org
Bitcoin Cash brings sound money to the world. Merchants and users are empowered with low fees and reliable confirmations. The future shines brightly with unrestricted growth, global adoption, permissionless innovation, and decentralized development. https://www.bitcoincash.org
Bitcoin Cash Info:
Forbes Article on Bitcoin Fork During Aug. 1
Coinbase Blog: What Is A Bitcoin Fork ?