From the BBC an hour ago, "Wednesday saw Mr Bercow once more cite parliamentary precedent to rule that another vote could only take place if the proposal tabled by the government was "substantially different" from the previous one."
Without PM May's deal, there is no obvious direction for Brexit to go forward with regarding any significant deal between the UK and EU. If Bercow does not let May put forth her deal again later this week, he may not let her put it up at all. In that event, the UK is headed towards a no deal which is still not priced into cable.
Like I've said many times, I'm not all in short just yet, but my general view is that cable is way overpriced especially since there are many more bad outcomes than good ones at this point.