GLJ Research reiterates Sell rating on SolarEdge stock amid rally By Investing.com

GLJ Research reiterated a Sell rating and $6.90 price target on SolarEdge, arguing the recent 47.79% five-day rally is speculative and unsupported by earnings, guidance, customer news, or a change in the residential solar market. The firm highlighted declining R&D spending, including a roughly 35% drop from SolarEdge’s peak, and said the company is underinvesting relative to peers in 800V and solid-state transformer technology for AI data centers. Enphase-related updates were mixed, including new product launches and a Barclays target cut to $30 from $31 with an Underweight rating.

Analysis

The key market error is treating a headline-driven rally in legacy solar names as evidence of a durable AI-infrastructure monetization path. The real beneficiaries of 800V / solid-state transformer adoption are the companies already spending into power electronics, thermal management, and grid interconnect design; SolarEdge and Enphase are being repriced on optionality they are not yet funding at scale. If that narrative persists, it can still support short-term momentum, but the economic capture likely accrues to better-capitalized semiconductor, power-conversion, and electrical-equipment names rather than rooftop inverter incumbents.

For ENPH and SEDG, the second-order risk is not just valuation compression, but a credibility gap with investors on capital allocation. When R&D intensity declines while the market is rewarding AI-adjacent power stories, management will be pressured to either chase the theme via acquisitions or re-accelerate spend, both of which can be margin dilutive over the next 2-4 quarters. The current move is also fragile technically: absent a fundamental catalyst, these squeezes tend to fade once broader tech sentiment weakens or earnings season shifts attention back to growth and cash flow.

The contrarian angle is that this rally may be more about scarcity of AI-power proxies than genuine embedded value in the solar OEMs. That makes it tradable, not investable: if Nvidia’s print disappoints or the market rotates out of high-beta growth, these names can give back a large fraction of the move quickly because the narrative has outrun identifiable revenue contribution. In contrast, the safer expression is to own the actual equipment winners that benefit from data-center electrification and sell the names whose economics remain tied to residential solar cycle recovery, not AI buildout.

Given the negative skew, the path of least resistance is lower over 1-3 months unless one of these companies announces an actual design win, backlog conversion, or meaningful R&D step-up in high-voltage power components. Until then, the market is paying for a concept that is still largely unproven in the underlying financials.

Key Decisions for Investors

• Short SEDG on strength over the next 1-3 weeks; use a tight risk stop above the recent squeeze highs. Risk/reward is favorable because the move appears narrative-only and can retrace 20-30% quickly if momentum fades.
• Underweight ENPH vs. actual AI power beneficiaries over the next 1-2 quarters; the cleaner expression is that ENPH is a follower, not a leader, in data-center electrification. Prefer a relative short if the stock re-rates on more speculative 800V language.
• Pair trade: long a true power-infrastructure winner / short SEDG or ENPH for 1-3 months. The thesis is capital intensity and R&D discipline will matter more than thematic association once investors re-focus on who can actually ship product into AI load growth.
• Consider buying short-dated put spreads on SEDG into any additional squeeze if implied vol remains elevated. This offers defined risk with asymmetric payoff if the rally exhausts after the Nvidia event window.
• Do not add long exposure to either name until there is a concrete catalyst: design win, product announcement tied to high-voltage data-center applications, or a visible step-up in R&D. Absent that, the probability-weighted outcome is mean reversion.