The same thing that happened the last 11 months. Dumpers trying to take the price down as if it's their life mission. They won't rest till we reached $10 or lower. They just need to destroy this thing, no matter what.
$10 a bitcoin still makes it way stronger than most currencies. People forget how insane it is that our coins are worth $350 each.
Market cap is more important in this regard than unit price. At $10 per bitcoin it can be manipulated by just a handful of millionaires. This is not possible with regular currencies, so calling it ''stronger'' is far-fetched.
In this regard, marketcap is less important than the amount of fiat sitting on exchanges.