The problem with that chart is that it correlates BTC and BCH as a single entity long term. The day BTC will crash and burn because of its long term flawed security model it will drag BCH
Its probably because the whole crypto market have turned bullish but BCH is less liquid so more volatile. Also BCH have the best future prospect so its attracting wise invertors.
I wonder how they are going to fail on this issue since Muslims man are very agressive alpha men in comparison to the rest of Europe willing to bend their ass to anything.