It was a big round-number day for the stock market.
The Standard & Poor’s 500 index closed a hair above 2,000 points Tuesday, 16 years after it closed above 1,000 points for the first time.
Stocks opened slightly higher and remained in the green the rest of the day. The major U.S. indexes are riding a three-week streak of weekly gains and are up for the year.
While the market is setting records, many stock watchers believe equities remain fairly…