Читать книгу Binary Trading - John Piper - Страница 42

A small move by the underlying market can have a substantial effect on the binary price – especially if that small move takes the underlying from up to down, or vice versa. Another way of saying this is that the small move takes the underlying market through parity.

For example, if FTSE is 5 points up and it is 2pm then the FTSE to end up bet may be priced at around 55/60 reflecting the fact that the market has two and a half hours before it closes.

At the same time the FTSE to end down bet would be priced at 40/45 – remember that the bets are a mirror image of each other, both sides adding up to 100.

If FTSE now moves 12 points down and takes an hour doing it then the price of FTSE to end down may now be 66/70 reflecting the fact that FTSE is now down 7 points and there is only an hour and a half until it closes.

Here is how you might trade this: