I saw the reaction of the market as well, but I doubt that anyone can forecast these things accurately.
I don't see how Fillion can win the election. He is imo a dead man walking, which is great for Le Pen. Macron had his honeymoon period and now people start to figure out that he is not that special. He is not a great candidate. Le Pen winning would make a lot of sense. That said, Le Pen herself has a lot of baggage and the French people like the EU. I remember over a year ago (long) before Trump, that I wrote, that I am a bit scared of the FN winning this election. It feels quite surreal that this might come true. My feeling says Macron (The french people can't be daft enough to vote for Le Pen, right?
), but my mind points in the other direction.....So I have no idea, how this is going to end. It is worrying enough that the FN is within a shout.