Lexmark (LXK) is down 39 cents to $18.24 and options volume is running 6X the usual. Most of the activity is in the Jan 17.5 – 20 call spread, which traded 5500X for $1.10. It was a sold, according to a contact on the exchange-floor. If so, it might close a position in the 17.5s opened in mid June (chart) and opening a bullish position in the 20s. Open interest data Monday might be worth a look, as LXK is due to report earnings Tuesday, before the bell.