It looks like someone made an outright bet of over $200k that news by March expiration will support a price above the strike ($17.5) plus premium ($2.95) = $20.45. This was not part of a hedged spread (that we know about).
I currently show 729 of the March 17.5 call options traded today at a price as high as 3.20. The trade seems somewhat significant because the bid is a full 1 point less than the ask. The buyer has an automatic paper loss of over 70K at this moment but this is a bet of well over 200K that the share price will be well above 20 by March 22nd. Interesting