For now Bitcoin is the only coin capable of dominating 39.5% of 100% Marketcap.
While the rest Marketcap controlled by Altcoins because the number of Altcoins more and continue to appear.
So, Altcoins is more dominant than Bitcoin.
They both go hand in hand, without BTC altcoins would die and without ALTs bitcoin wouldn't flourish and stay on top. It doesn't mean that the dominance of BTC is the reason why it controls the market because there are lots of things to factor in. Anyway, have any of you guys heard about menlo.one they are an ICO marketplace? I'm planning to get more into ICO investment now that we aren't seeing much of an improvement on coins prices.