London Stock Exchange Group plc  (LDNXF)  (LSE) shares topped the FTSE 100 Tuesday as the market digested bullish guidance from CEO Xavier Rolet and a series of subequent broker upgrades.

Rolet delivered some bullish revenue and margin guidance to investors, on Monday, at the exchange operator's first meeting since the ill-fated merger with Deutsche Boerse (DBOEY) fell apart.

LSE expects solid revenue growth to the end of 2019, supported by robust growth in its FTSE Russell indices business and at LCH Clearnet. It also guided for high single-digit growth in margins, with its Ebitda seen rising from 46.5% in 2016 to 55% by 2019.

Shares of LSE rose more than 4.2% during early trading in London, to change hands at 3,557.0 pence, outpacing the 0.71% gain of the Stoxx Europe 600 Financial Services index.

Monday's guidance supported upgrades from analysts at Credit Suisse and RBC Capital Markets, with price targets rising to 3,600.0 pence and 3,800.0 pence respectively. The median price target for LSE shares, from all sell-side analysts covering the stock, is 3,700.0 pence.

Price action in the shares, as well as Monday's comments, come at an uncertain time for LSE.

It owns Europe's largest clearing house and the clearing industry, alongside much of the banking sector, has proven a key target of European bodies who are seeking to entice, or otherwise regulate, financial firms into moving over onto the continent after Britain leaves the EU.

The European Central Bank has tried once before to force clearing houses to move out of London and into Europe, at a time when the U.K. was a committed member of the EU, but failed.

Reuters reported Tuesday that European bodies are due to publish a draft law later in the session, which is intended to force some clearing business from Britain.