apparently there is more bitcoin cash circulating than BTC! How is that?
difficulty magic
they made bitcoin cash so that its difficulty is adjusted faster than bitcoin (the original pan for difficulty adjustments) and called Emergency Difficulty Adjustment. it was done in order to keep the chain alive because they know in the fist days they wouldn't get any mining power and the fork should have happened.
this EDA was abused by miners. the difficulty was adjusted (dropped) to very low levels so that the low hash power of BCH is capable of mining it. but that also meant that a big mining pool with a huge hashrate could start mining that low difficulty coin and find 10 times, 20 times more blocks than it could find in bitcoin with the high (normal) difficulty.
and they surely did do that. there was a time when they found 1000+ blocks per day instead of 144 normal amount!
more blocks, more mining reward (12.5
BTC per block), more circulating supply.