A lot of words were used to describe the manipulation in the option market on TOM. This market structure issue is a piece-of-cake for insiders. However, normal people can find it hard to grasp. Luckily, we have more colour. The manipulation continued on Monday morning. It was easy to detect.
In short, the kid manipulated the option quote on Euronext. And he traded against this skewed quote on TOM. Market makers have committed themselves to have prices at least as good as on Euronext.