Firstly, What is Binary? Binary is a bet in Financial Spread Betting and it’s in the form of fixed-odds bet, but it’s actually expressed in a different format. So, the key features of the Binary are the bet is a winner is priced at 100, and it is a loser if it’s priced at zero. So the prices fluctuate between zero and 100 at any given time. It is that description that determines whether or not the Binary will lose or it will win.
Binaries are linked to a pre-determined expiry, which is time and date. This is very relevant for the actual outcome. They can fluctuate between five minutes up to a year. Five minutes I don’t see much edging in the market for them, but certainly if you want to go for seven days up to a year, you can use that on markets. For lower time scales you can use [IG].