LONDON, Aug 5 Reuters London Stock Exchange Group39;s LSEG cost and savings targets for integration of data company Refinitiv are on track, it said after halfyear results and the launch of a larger than expected 750 million pound 911 million share buyback.

Investors are closely monitoring the integration of Refinitiv, which LSEG bought for 27 billion in 2021, after outages and concerns among some of them over the amount of money being spent to mesh two different cultures and systems.

We are managing costs well and we continue to make progress on achievement of synergies, LSEG Chief Executive David Schwimmer said in the company39;s halfyear results statement.

Shares in LSEG were up 2.5 by 0830 GMT.

LSEG39;s Refinitiv purchase has transformed the 300yearold London exchange into a group for which financial market data and analytics are larger than all its other business lines combined, pitting it against the likes of data leader Bloomberg and SP Global.

The integration has involved internal personnel changes, including LSEG39;s head of data, Andrea Remyn Stone, stepping down in June after only a year in the job, with her role temporarily taken over by Schwimmer.

We are successfully executing on our strategy, have good momentum going into the second half and our targets remain unchanged, Schwimmer said.

There was a sharp drop in London Stock Exchange listings in the first half, owing to economic uncertainty caused by the war in Ukraine, but Schwimmer said there was…