This increase of more than 30% of November 1 is not obtained as a result of news concerning Inventiva, caution, therefore, following the speculators who can in the short term vary the action.
In the long run, I think it's a big possibility if the products work and the tests succeed one after the other. Also, the announcement of an investment fund of a "Call Option" to 12€ before February 2020 is double-edged, a sharp increase is expected and inevitable, a sharp fall if bad news. For me, I bet on a return to 8€ at the end of the year (the same share price as during the introduction) and the passage above 12€ in the first semester of 2020 after the announcement of results (NASH). If bad results, re-fall to very low levels or even abandonment of funds (which own about 20% of the capital), caution ...