Looks like Bitcoin is really beating back the alts this month too; market dominance of BTC has risen to 58% currently, an increase of 10% this month alone. Good thing I got out of alts in last august. A month ago I thought the previous ATH of september the 2nd ($4975) wouldn't be surpassed anymore this year. See if BTC manages to maintain its enlarged market dominance after the HF and SX2.
I think bitcoin has proven who is the king of cryptocurrency. Its dominates is almost 60% and the alts are having a bloodbath and there's no really one coin that can challenge bitcoin for a long time. The closes is ETH and Bitcoin Cash, however, those who thought that those two has a chance, has suddenly give up that idea and I'm sure are into the bitcoin ecosystem today. I think bitcoin dominance will continue as I have said, even after HF and Segwit2x. Actually those two looming implementation will push bitcoin to another step of mainstream acceptance.