Wall Street is getting even more bullish on stocks

• Oppenheimer raised its year-end S&P 500 target to 5,900, the second-highest target on Wall Street.
• Its chief strategist, John Stoltzfus, says tech leadership will broaden out to other sectors.

The S&P 500 has already scored more than 30 record highs this year, but Wall Street grows more convinced that the index's bull run has further to go.

The latest entry came on Monday, when Oppenheimer lifted its year-end forecast to 5,900 from 5,500, indicating roughly 6% upside from Monday's close. The shift makes the firm the second-most bullish on Wall Street.

"Just like before, it's a matter of the fundamentals, where they stand right now," John Stoltzfus, Oppenheimer's chief investment strategist, told CNBC. "It includes the resilience of the consumer, even as the economy slows, quite a bit of resilience there — the resilience in business, job growth, wage growth."

His thesis also pushes back on recent concerns about an overconcentrated S&P. A handful of tech stocks have been doing the heavy lifting for the benchmark index, giving investors pause about how sustainable the current rally is.

But while returns on the seven leading large-cap stocks more than double the rest of the index, Stoltzfus noted that other market sectors had notched sizable gains since an October trough.

By that measure, the S&P has been broadening out. That shouldn't stop either, Stoltzfus added, arguing that investors are less focused on short-term gains and will continue to expand the rally.

"It's driven a lot by intermediate- to longer-term investors, some of which are just the citizenry recognizes that there's real threats to Social Security stability, and people realize they need to play a role in their own retirement," he said.

It's also possible the Federal Reserve will implement a rate cut late in the year, boosting stocks. But Oppenheimer doesn't share the market's optimism about a September pivot.

Only Evercore's S&P estimate of 6,000 outpaces Oppenheimer's forecast. Among Wall Street's biggest banks, UBS and Goldman Sachs hold the highest outlook, at 5,600.

Meanwhile, pessimistic analysts are harder to come by. Last week, Marko Kolanovic — one of the Street's last remaining bears — left JPMorgan.

Correction: July 9, 2024 — An earlier version of this story misstated the date from which Oppenheimer's target indicates 6% upside. It is from Monday's close, not Tuesday's close.