Bitcoin whales have much influence on BTC price. For example every time someone moves Mt Gox's funds, we see huge cryptocurrency sell off and price drops. Bitcoin still need mass adoption for price stabilization and volatility mitigation.
When it comes to that of the market value of the crypto coin like that of the bitcoin which is the top-rated coin in the entire world, then there comes so many factors which affect the market value of the bitcoin like that of the demand of the bitcoin in the international market, the influence of the ones who have invested a major portion of their earnings into it and above all the awareness rate of the bitcoin.