US STOCKS-Healthcare stocks boost Wall St
* Remain camp leads Brexit, say bookmakers
* Tesla falls after offering to buy SolarCity
* Adobe falls after forecast disappoints investors
* Indexes up: Dow 0.36 pct, S&P 0.39 pct, Nasdaq 0.48 pct (Adds details, changes comment, updates prices)
By Tanya Agrawal
June 22 (Reuters) - U.S. stocks rose in late morning trading on Wednesday, helped by a jump in healthcare stocks, even as investors awaited the outcome of Britain's referendum on its European Union membership.
Traders are guardedly optimistic about a "Remain" vote. Polls are extremely close but bookmakers point to betting patterns in favor of the U.K. remaining in the EU.
The S&P 500 health index jumped 1.34 percent after a report said Medicare spending levels did not exceed targets and did not warrant the formation of a cost-control board.
Bristol-Myers Squibb was up 2.6 percent and Celgene up 3.3 percent, providing the biggest boost to the sector. Continuación...