Sort:  

Bitcoin Cash is viewed as the alternative to Bitcoin within the Bitcoin community. Therefore, if people become concerned about the future of Bitcoin, investors will often switch their investments into Bitcoin Cash instead.

It is because of this that their prices are inversely related :)

Thanks for explaining. I'm a newbie and this crypto world is bewildering. It reminds me of the first ever time I touched a computer, back in 1994.... my noodle is getting blown again. I wish I had a nerdy, eloquent friend who would help me through all this, especially as I am trying to buy some cryptocurrency, and it seems like a minefield.

Haha mate I know it's not easy! I am leaving uni soon and will be researching and posting full-time so hopefully you can learn a thing or two from my posts too :)