US STOCKS-Wall St ends up on Greek hopes ahead of debt deadline
* Greece submits new aid proposal to creditors
* June U.S. consumer confidence rises more than expected
* Home prices rise slower than expected in April
* Indexes up: Dow 0.13 pct, S&P 0.27 pct, Nasdaq 0.57 pct (Adds comments, updates prices, trading volume)
By Sinead Carew
June 30 (Reuters) - U.S. stocks finished up after a choppy trading day as investors held out hope on Tuesday for deal to keep Greece in the euro even as it veered close to a potential debt default.
Greece, hours from missing a 1.6 billion euro ($1.8 billion) payment due to the International Monetary Fund, submitted a new aid proposal to its creditors, calling for debt restructuring in what seemed like a last-ditch effort by Athens to resolve its impasse with lenders.
The Greek government indicated that it could change its stance on a referendum it scheduled for Sunday if a new loan request could be agreed, euro zone sources told Reuters.
After starting with a rally and then turning negative along with European equities, Wall Street reversed course again in the afternoon on hopes that Greece's Prime Minister Alexis Tsipras was showing signs of willingness to talk. Continuación...