Much of the climb in solar stocks looks justified by growth prospects, but buyers may still be in for a bumpy ride
2 min
Solar stocks are sizzling—quite an accomplishment for the simplest and most mature of the green-energy technologies. Finding companies that could keep shining might require looking in less obvious places.
The MAC Global Solar Energy Index has generated a 233% return including dividends for dollar investors during the past year. That is well ahead of returns from wind-turbine makers Vestas and Siemens Gamesa, nevermind the S&P 500’s 15%.
As public and political support for green power has broadened, markets have come to expect a decadeslong renewables rollout. It is hard to see any catalyst for a change in sentiment, says Sam Arie, a veteran utilities analyst at UBS. Solar panels can be the cheapest way to generate electricity in many parts of the world. “In some cases it is even cheaper to build a new solar farm than run existing coal plants,” says Alex Monk, a portfolio manager at asset manager Schroders.
The catch is that the shift to renewables doesn’t guarantee shareholder returns. To justify high valuations, investors need to ensure companies have a defensible business as well as growth prospects.
Solar investors have already experienced at least two stomach-churning cycles. A key lesson has been that making panels themselves is a low-margin, hypercompetitive market best avoided. But other parts of the value chain offer better prospects.
For example, SolarEdge and Enphase make power inverters, which convert a solar panel’s power to alternating current and adjust performance to maximize output. Their Nasdaq-listed shares have returned 179% and 444% respectively during the past year and now trade for 72 and 93 times forward earnings. That is a lot of growth priced in. However, the technologies are patent-protected and could also be central to managing a smart home’s power between electric vehicles, solar panels, batteries and the like—a potentially vast market.
Developers are another option. They bid for, build and run solar farms. While installing the panels isn’t complex, experience is valuable when pricing bids and navigating the permitting process, and scale is crucial to sourcing panels effectively.
NextEra Energy, Enel and Iberdrola have built huge renewable-power farms as part of wider utility businesses and have ambitious rollout plans for solar and wind. Their shares have given investors total returns of between 16% and 28% over a year, and now change hands for between 15 and 32 times forward earnings. Barclays utilities analyst Dominic Nash credits part of the rise to general growth investors coming into the sector for the first time.
Then there are U.S. residential developers, which offer homeowners rooftop solar-panels paired with battery storage. The products provide added reliability, and monthly payments for the cost of batteries and solar panels that are often lower than existing utility bills. “It’s a pretty easy sale,” says Stephen Byrd, an analyst at Morgan Stanley.
Shares in SunPower and Sunrun, two such developers, trade at Tesla-type multiples, 118 times and 360 times forward earnings respectively. Revenues will grow—U.S. solar penetration will rise from 3% now to 14% by 2030, says Mr. Byrd—but margins will also come under pressure once installers compete head-to-head rather than with incumbent utilities.
Investors need to choose carefully as the stock-market solar coaster speeds up again. The general direction of travel may be up, but it likely still has plenty of twists and turns in store.
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Investors are bracing for a bumpier fall stock market due to shifting odds of a Federal Reserve interest-rate increase and other macro challenges.
3 min
The stock market had a decent summer. Investors are bracing for a bumpier fall.
In the past couple of months, equity investors cheered soaring profits at big companies, shrugged off jitters in the bond market and nudged megacap tech shares back near records.
Now, as the post-Labor Day stretch begins, a number of new challenges lie ahead: ever-shifting odds of an interest-rate increase from the Federal Reserve. Sky-high expectations after a stunning earnings season. The persistent threat of higher consumer prices as fighting in the Middle East drags on.
“You’re moving from this earnings-driven market to this macro-driven market with the Fed, inflation and interest rates in focus,” said Keith Lerner, chief investment adviser for Truist Advisory Services. “It tends to be a choppier period.”
Historically, every major U.S. stock index experiences its worst average return in September. The Dow Jones Industrial Average has slid an average 1.1% in the ninth month of the year, in data that dates back to the 19th century. The S&P 500 has seen the same average decline—and for every September dating back to 1928, the benchmark ends the month lower more than half of the time.
Analysts caution against reading too much into those seasonal patterns. But in recent weeks, new reasons for investor caution have emerged. One of the largest: the looming threat of an interest-rate increase from the Fed, which announces its next policy decision on Sept. 16.
Chairman Kevin Warsh’s decision to ditch forward guidance and take more of his cues from markets has muddied the waters for investors when it comes to monetary policy. That has left traders scouring Fed governor speeches and economic-data reports for clues on the central bank’s next move.
“There’s going to be a lot of eyes on those numbers,” said John Luke Tyner, head of fixed income and portfolio manager at Aptus Capital Advisors.
The past couple of weeks offered just one example of how frequently those expectations can change. After Warsh struck a hawkish tone during remarks on Aug. 28, the odds of a hike at the Fed’s next meeting jumped from 35% before the speech to 58%, according to CME FedWatch data.
On Thursday, Fed governor Christopher Waller made a case for leaving rates where they are. Interest-rate futures showed coin-flip odds between a hike and a hold. Then Friday’s robust jobs report amped up rate-hike bets once more, back to a roughly 60% chance of higher rates after the meeting.
“Rates have really been driving the car for equities the last few weeks,” said Ross Mayfield, an investment strategist at Baird.
That uncertainty comes as an unruly bond market could put pressure on stocks. Treasury yields have marched higher for much of the summer, driven by concerns about rising oil prices, growing U.S. budget deficits and a deluge of tech-company bonds now competing for investors’ cash. Last week, the rout went global, pushing yields to multiyear highs in Japan, Germany and the U.K.
Higher bond yields can drag on stock prices and lift borrowing costs for companies and consumers across the economy.
Rising prices remain the top concern for bond traders, and continued fighting between the U.S. and Iran has done little to ease those worries. The national average price of diesel climbed to a record of $5.850 on Friday, according to AAA. That is up from $3.712 a year ago.
Investors will get more insight on the path of prices this week, with the much-awaited consumer-price index report due Friday and a reading on producer prices Thursday.
With another blockbuster earnings season in the books, some analysts have also warned that any boost from the third-quarter reports due in the coming months could be minimal. Back-to-back quarters of standout profits have raised expectations and made it especially difficult to impress traders. Custom-chip company Broadcom, for example, said Wednesday that it more than tripled its earnings and nearly doubled its revenue. Shares slipped 2.7% the next session.
Many analysts note there are plenty of reasons not to panic. The economy is in impressive shape, thanks to a healthy labor market and the rippling effects of the artificial-intelligence investment boom. Profits are booming at America’s biggest companies. The Cboe Volatility Index has dropped to its lowest levels of 2026. Credit spreads are tight, a sign bond investors aren’t concerned about economic conditions that could hurt companies.
But the mood has shifted from the euphoria that felt tangible when the Nasdaq was notching back-to-back records early this summer. The question, Mayfield said, is whether the fundamentals that have bolstered the bull market so far can stretch the rally into 2027.
“There are more anxieties or uncertainties about the backdrop,” he said. “It does feel like a transitional moment.”
