Re: BTC Dominance Percentage getting lower and lower :

I noticed this since coinbase started supporting BCH

https://coinmarketcap.com/charts/#dominance-percentage

Do you have any logical explanation here? technically and fundamentally ...

thanks

Well bitcoin transaction fees are very high which some of us cannot bear with it imagine that you are just send $10 dollars worth of bitcoin you have to pay $20 in fees just to confirm very fast and currently the minimal transaction fee is 900 satoshi per byte so, in average sized transactions you have to 0.002 ($33 in today's rate) in fees just to confirm your transaction and because of that some investors and holders were move to bitcoin cash and other cryptocurrencies for lower transaction fees and fast confirmation so, that's why bitcoin dominance were getting lower and lower.

Well before drawing a conclusion you should think little more why Bitcoin fees increased that much! With little inspection on current crypto market, I have come to following conclusion:

The above chart has two attribute, one is Bitcoin fees in USD and other one is BCH price in USD. You can clearly see Bitcoin fees is directly proportional to BCH price. When BCH price rises, BTC fees rises. Now why is it like that? The answer is simple, BCH market is nothing but an illusionary attempt to overtake BTC in race of being real Bitcoin and this movement is backed by most of the miners (mostly antminer ones) because difficulty of BTC mining made it less profitable whereas BCH mining is still cheap. So when BCH price rises, they just move to BCH and as a result BTC fees rises (Demand/Supply) rule.
But every time it proves temporary and BTC recovers sooner or later because of huge faith by investors in it. So fees will decrease soon and BTC dominance will increase again.

PS: everyone above blaming Increased Transaction fees and slower transaction to be the reason, please have a look on my answer.

You are right, but what will happen if all miners move to support BCH (which will never happen)?
Any cryptcurrency expert can easily figure out that BCH is completely affected by BTC price which means that it has no value in the absence of Bitcoin.
Miners are just trying to get as much profit as they can regardless the coin they mine (they support).