It is an 'out of sequence' order. This order didn't happen now and was probably part of some margin call or basket order.
For it to deviate from the 5 cent inc/dec a quote must have been ask by a pro (possibly a Broker on behave of his client). Then, within a certain time frame, the quote must be accepted.
The 5 cent is not a rule or so. If the Option MM decides to work by 1 cent inc/dec that is fine. So in special cases he may deviate from it if he wants.
Quote request are also often used with basket orders. Then you ask multiple quotes for your related volumes and instruments and before the first one expires you hit them all. In that case you are never in a situation were you have a strategy and it fails due to price changes between the execution of its multiple legs or that a leg doesn't get filled.
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