Actually, I think “the bettors”, in number, were much more numerous for Trump — just like “Leave” had more small bets in England in June.
Also, I think a lot of bettors, sensing a sure thing, came out of the woodwork to cash in on Hillary.
Normally, people like this wouldn’t bet at all, at least online.
Think: The people who rushed out to buy Dutch tulips, because everyone else was doing so, for example.