Sunrun and First Solar Rise 6% as Solar Selloff Unwinds; SolarEdge Climbs 4%

Solar stocks are surging Thursday with no earnings, no analyst upgrades, and no policy news to explain the move. The ordering of who is rising most reveals something specific about what this rally actually is.

Published September 17, 2026, 1:56pm ET · 4 min read

Market Movers desk. Editor: David Moadel.

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This 1.42 MW DC solar farm was built on top of a landfill in Dover, Massachusetts. The landfill property had not been used for decades and now provides clean renewable energy to customers nearby. Photo by Lucas Faria. © departmentofenergy / Flickr

Solar stocks are rebounding across the board Thursday afternoon, and the ordering of today’s move tells a specific story about what kind of buying this is. The Invesco Solar ETF (NYSEARCA:TAN) is up 4% to $46.52, running well ahead of the SPDR S&P 500 ETF Trust (NYSEARCA:SPY), which is up 1% to $762.20, and that gap between the two funds says money is moving toward the group as a whole rather than toward the broad market.

Sunrun (NASDAQ:RUN) stock is up 6% to $8.81 in Thursday afternoon trading, leading the group higher after a punishing stretch that has Sunrun down 52% year to date. At that market value, even a modest change in sentiment can push Sunrun shares several percent in either direction, and today is that kind of session.

Also, First Solar (NASDAQ:FSLR | FSLR Price Prediction) stock is climbing 6% to $202.70 in the sector-wide bid. SolarEdge Technologies (NASDAQ:SEDG) stock is rising 4% to $36.23 alongside it, a smaller move that fits its stronger year, with SolarEdge up 26% year to date.

Finding the Pattern With Solar Stocks

None of these three companies announced anything today. There is no earnings release, no guidance change, no analyst action, no contract announcement and no policy decision driving the group higher, which is why the move reads as a sector unwind rather than a name-specific reaction. Sunrun’s rebound sits inside that same pattern, and the TAN move confirms the group-wide shape of the bid.

One piece of background belongs here rather than in the day’s cause. In the prior session, First Solar withdrew a patent complaint at the U.S. International Trade Commission, a withdrawal First Solar characterized as procedural, and First Solar shares fell that session. Today’s move in First Solar follows that decline rather than any fresh disclosure from the company.

What the Year-to-Date Ordering Reveals for Sunrun

Reading the ordering carefully shows what today actually is, and it centers on Sunrun. Sunrun stock is deeply negative for the year while SolarEdge stock is solidly positive, yet today Sunrun shares are rising more than SolarEdge shares, and the solar fund is rising faster than the broad market fund. That ordering, worst performer up most and best performer up least, is the signature of a reversal rather than a re-rating.

A bid that rewards the decline more than the business is buying the drop, not the company. For Sunrun bulls, the logic is straightforward: a residential solar installer this far below its starting price for the year needs only a shift in sentiment to move a great deal, and today shows exactly that mechanic at work in Sunrun shares.

One session of buying doesn’t revise the market’s accumulated verdict on Sunrun, and the 52% year-to-date figure is that verdict. SolarEdge climbing less than Sunrun while carrying a far better year is the detail that makes today look like an unwind rather than a reassessment. Plainly read, Sunrun’s selling stopped, which isn’t the same as the case improving.

What to Watch

Traders can watch for whether Sunrun stock holds its intraday gain into the close, since a same-session giveback would confirm today as a covering bid rather than the start of accumulation in Sunrun. The TAN ETF’s 4% move gives a clean sector reference for measuring Sunrun’s follow-through on subsequent sessions, and the SolarEdge stock move offers a check on whether a broader bid extends into names that haven’t been beaten down.

Investors sizing their exposure to Sunrun stock should keep their positions modest given the beta on display in the name. A stock that can lose more than half its value over the year and add 6% in an afternoon on no company news is a Sunrun profile that rewards small, staged commitments over concentrated bets. Shareholders already carrying Sunrun can treat any continuation into subsequent sessions as a chance to review their risk rather than to add, and new buyers can wait to see whether Sunrun prints a second up session before committing fresh capital.

The next data point that matters for Sunrun stock is simply the close, and after that, whether the group holds its gains against a flat solar session on Friday. Without a fresh catalyst for Sunrun, today’s rebound has to prove itself session by session.

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David Moadel

David Moadel is financial writer specializing in stocks, ETFs, options, precious metals, and Bitcoin. David has written well over 1,000 articles for leading online publications, helping investors understand markets, income strategies, and risk.His work has appeared in The Motley Fool, InvestorPlace, U.S. News & World Report, TipRanks, ValueWalk, Benzinga, Market Realist, TalkMarkets, Finmasters, 24/7 Wall St., and others.With a master’s degree in education, David has taught at the elementary, high school, and college levels. That teaching background shapes his writing style: clear, educational, and practical. David has also built a loyal social-media audience by providing trustworthy financial content on YouTube, X/Twitter, and StockTwits.

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