Stocks pushed to fresh session highs late Tuesday, extending a rebound after Monday’s tumble. The Nasdaq led with a 0.8% gain, while the S&P 500 climbed 0.5%. The Dow Jones industrial average rose 0.4%. Volume was tracking lower on both major exchanges compared with the same time Monday. Earlier in the stock market today, Greece asked for a new bailout as a midnight deadline for a payment to the International Monetary Fund loomed.