US STOCKS-Wall St flat, all eyes on Brexit vote
* Tesla falls after offering to buy SolarCity
* Adobe, FedEx down a day after earnings
* Indexes down: Dow 0.2 pct, S&P 0.06 pct, Nasdaq 0.06 pct (Updates prices, changes byline)
By Rodrigo Campos
June 22 (Reuters) - U.S. stocks were little changed on Wednesday after paring initial gains, with focus on Thursday's referendum on whether Britain will remain part of the European Union.
Stocks rose early after data showed U.S. home resales rose in May to a more than nine-year high, adding to retail sales and international trade data that painted an upbeat picture of the economy in the second quarter.
The S&P 500 once more hit a ceiling at the 2,100 level, which has been an area where sellers cluster.
Attention remained on Britain's Thursday vote. A poll published on Wednesday showed a statistical tie, with the 'Leave' camp with 45 percent, just one point ahead of 'Remain,' and 9 percent undecided. Oddsmakers, however, showed a clear advantage for the 'Remain' camp.
Investors also kept an eye on U.S. Federal Reserve Chair Janet Yellen's second day of testimony to Congress. She repeated her speech from Tuesday, in which she played down the risk of a recession, but warned that the British referendum and a U.S. hiring slowdown posed risks to the economic outlook. Continuación...