S&P 500 Index opens in the green, stays within touching distance of all-time highs

• Wall Street's main indexes post small gains on Tuesday.
• Energy stocks underperform amid declining crude oil prices. 
• Risk-sensitive technology shares push higher after the opening bell.

Following Monday's choppy session, major equity indexes in the US opened in the positive territory on Tuesday. As of writing, the S&P 500 was up 0.15% on the day at 4,232, closing in on the all-time high it set at 4,238 on May 7. Moreover, the Dow Jones Industrial Average was virtually unchanged at 34,610 and the Nasdaq Composite was gaining 0.5% at 13,867.

Among the 11 major S&P 500 sectors, the Energy Index is down 1.2% on the day pressured by a 1% decline in US crude oil prices. On the other hand, the risk-sensitive Technology Index is up 0.8% after the opening bell.

Earlier in the day, the data published by the US Census Bureau showed that the goods and services deficit of the US declined by $6.1 billion to $68.9 billion in April, possibly helping the market sentiment improve.

S&P 500 chart (daily)