US STOCKS-Wall St turns up on Greece hopes despite looming default
* Greece submits new aid proposal to creditors
* Malta PM: Greece willing to suspend referendum if talks resume -report
* June U.S. consumer confidence rises more than expected
* Home prices rise slower than expected in April
* Indexes up: Dow 0.29 pct, S&P 0.46 pct, Nasdaq 0.71 pct (Adds comments, updates prices)
By Sinead Carew
June 30 (Reuters) - U.S. stocks turned positive around mid-afternoon in choppy trading on Tuesday as investors hoped for a last-minute deal to keep Greece in the euro.
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.
After turning negative along with European equities, Wall Street reversed course after Malta's Prime Minister reportedly said Greece would be willing to suspend its planned referendum if talks resume. Continuación...