Deals of the day-Mergers and acquisitions

May 8 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2000 GMT on Thursday:

*Swiss lender UBS UBSG.S is in talks to sell its hedge fund unit, O'Connor, to U.S. brokerage Cantor Fitzgerald, Bloomberg News reported on Thursday, citing people familiar with the matter. nL4N3RG2H9

*Nestle NESN.S has hired Rothschild to advise on the sale of its water division later this year, four people familiar with the matter told Reuters, as the Swiss food giant looks to refocus on bigger brands. nL8N3RF1JR

The United Kingdom will purchase $10 billion of Boeing BA.N planes, U.S. Commerce Secretary Howard Lutnick said at the White House on Thursday during the announcement of a bilateral trade deal between the UK and the United States. nS0N3R303F

Coinbase COIN.O, the largest publicly traded cryptocurrency exchange, said it will buy derivatives exchange Deribit for $2.9 billion. nL4N3RG1MR

Specialty MGA Optio Group has acquired UK-based MGA Custodian Management for an undisclosed sum, the company said. nL6N3RG0CB

Japan's Nidec Corp <6594.T> said it was withdrawing its bid for Makino Milling Machine <6135.T>, giving up on its unsolicited takeover plan after Makino threatened to mount a "poison pill" takeover defence. nL1N3RG0D2

Japanese telecoms firm Nippon Telegraph and Telephone <9432.T> announced plans to take its subsidiary NTT Data <9613.T> private by purchasing the shares it does not already own for 2.37 trillion yen ($16.4 billion). nL4N3RF21J

London-based mobile game developer Tripledot Studios has agreed to buy marketing platform AppLovin's mobile games studio portfolio for about $800 million in cash and stock, it said. nL1N3RG069

U.S.-listed ride-hailing and food delivery company Grab is looking to strike a deal to take over smaller Indonesian rival GoTo in the second quarter, two sources with knowledge of the matter said. nL1N3RF0II