Paddy Power Betfair Share Price (PPB)

Yep which is why they’re going to buy webis. GLA

IMO the short answer is that the FY 2018 results confirmed that the expansion in the US, while a potential game changer, will take some time to mature ("current expectation is that the New Jersey sportsbook will generate a positive contribution 18 to 30 months post-launch") while the cost of the regulatory, tax and product fee changes are having a substantial and immediate adverse impact on the results (“approximately £118m had they applied for the full year 2018 - representing c.26% of Group EBITDA)”.
I haven’t seen any analysis by a broker and would welcome any links if available.
I bought on basis that PPB would use its proven track record to capture significant profitability in the US and other nascent markets while growing its on-line business. I’m going to hold for the present and wait on further trading updates.

Why the big fall today? What’s going on?

Why the huge rise today? What's going on?

like the company themselves are the only large buyers of the stock at the moment