All Aboard the Stock-Market Solar Coaster

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.

An original watercolour illustration for the cover of Harry Potter and the Philosopher’s Stone, 1997 — the first book in J.K. Rowling’s hit series—could sell for US$600,000 at a Sotheby’s auction this summer.

The illustration is headlining a June 26 sale in New York that will also feature big-ticket items from the collection of the late Dr. Rodney P. Swantko, a surgeon and collector from Indiana, including manuscripts by poet Edgar Allan Poe and Arthur Conan Doyle, author of the Sherlock Holmes books

The Harry Potter illustration, which introduced the young wizard character to the world, is expected to sell for between US$400,000 to US$600,000, which would make it the highest-priced item ever sold related to the Harry Potter world. This is the second time the illustration has been sold, however—it was on the auction block at Sotheby’s in London in 2001, where it achieved £85,750 (US$107,316).

The artist of the illustration, Thomas Taylor, was 23 years old at the time and a graduate student working at a children’s bookshop. According to Sotheby’s, Taylor took a “professional commission from an unknown author to visualise a unique wizarding world,” Sotheby’s said in a news release. He depicted Harry Potter boarding the train to Hogwarts on platform9 ¾ platform, and the illustration became the “universal image” of the Harry Potter series, Sotheby’s said.

“It is exciting to see the painting that marks the very start of my career, decades later and as bright as ever! It takes me back to the experience of reading Harry Potter for the first time—one of the first people in the world to do so—and the process of creating what is now an iconic image,” Taylor said in the release.

Meanwhile, to commemorate the 175th anniversary of Edgar Allan Poe’s For Annie , 1849, Sotheby’s recently reunited the autographed manuscript of the poem with the author’s home, Poe Cottage, in the Bronx.

The cottage is where the author lived with his wife, Virginia, and mother-in-law, Maria Clemm, from 1846 until he died in 1849. The manuscript, also from the Swantko collection, will remain at the home until it is offered at auction at Sotheby’s on June 26 with an estimate between US$400,000 and US$600,000.

The autographed manuscript will remain at Poe Cottage until it is offered at auction at Sotheby’s on June 26.
Matthew Borowick for Sotheby’s

Poe Cottage, preserved and overseen by the Bronx County Historical Society, is home to many of the author’s famous works, including Eureka , 1948, and Annabel Lee , 1927.

“To reunite the For Annie manuscript with the Poe Cottage nearly two centuries after it was first composed brought to life literary history for a truly special and unique occasion,” Richard Austin , Sotheby’s Global Head of Books & Manuscripts, said in a news release.

For Annie was one of Poe’s most important compositions, and was addressed to Nancy “Annie” L. Richmond, one of the several women Poe pursued after his wife Viriginia’s death from tuberculosis in 1847.

In a letter to Richmond herself, Poe proclaimed For Annie was his best work: “I think the lines For Annie much the best I have ever written.”

The poem was composed in 1849, only months before Poe’s death, Sotheby’s said in the piece, Poe highlights the romantic comfort he feels from a woman named Annie while simultaneously grappling with the darkness of death, with lines like “And the fever called ‘living’ is conquered at last.”

Poe Cottage, preserved and overseen by the Bronx County Historical Society, is home to many of the author’s famous works, including Eureka, 1948, and Annabel Lee,, 1927.
Matthew Borowick for Sotheby’s

In the margins of the manuscript are the original handwritten instructions by Nathaniel P. Willis, co-editor of the New York Home Journal, where Poe published other poems such as The Raven and submitted For Annie on April 20, 1849.

Willis added Poe’s name in the top right and instructions about printing and presenting the poem on the side. The poem was also published in the Boston Weekly that same month.

Another piece of literary history included in the Swantko sale could surpass US$1 million. Conan Doyle’s autographed manuscript of the Sherlock Holmes tale The Sign of Four , 1889, is estimated to achieve between US$800,000 and US$1.2 million.

All Aboard the Stock-Market Solar Coaster

Much of the climb in solar stocks looks justified by growth prospects, but buyers may still be in for a bumpy ride