Core Viewpoint - Morgan Stanley has adjusted ratings for several U.S. solar stocks due to market and policy changes, downgrading Enphase Energy and SolarEdge Technologies to "Neutral" while favoring Sunrun as a preferred stock [1][2]. Group 1: Enphase Energy - Morgan Stanley downgraded Enphase Energy's rating from "Overweight" to "Neutral" and reduced the target price from $64 to $37, reflecting downward pressure on stock prices and profit margins due to the industry's shift towards third-party systems [1]. - Despite the downgrade, the firm believes that Enphase remains one of the few consistently profitable solar companies with a net cash position [1]. - Analyst Mark Strouse noted that the recent "Inflation Reduction Act" may lead to a lack of positive momentum in the U.S. residential solar market, potentially impacting Enphase's market share and gross margins [1]. Group 2: SolarEdge Technologies - SolarEdge Technologies' rating was also downgraded from "Overweight" to "Neutral," with a target price set at $23, following a 34% increase in the stock's performance this month [2]. - Strouse maintains that SolarEdge holds a relatively favorable position in the U.S. residential inverter market, as the residential solar sector shifts towards third-party ownership models [2]. - New foreign entity regulatory frameworks have reduced competitive pressure in the market [2]. Group 3: Sunrun - Morgan Stanley is optimistic about Sunrun, assigning it an "Overweight" rating and raising the target price from $13 to $16, due to improved visibility in solar leasing and power purchase agreements [2]. - Sunrun is expected to meet the 48E tax credit eligibility by the end of 2027 and continue to benefit from storage incentives until the end of 2032 [2].