Enphase (ENPH) Stock: Why It Fell 15% on a Weak Q4 Outlook

Quick answer

Enphase stock fell 14.7% to $25.40 at 9:46am ET on Oct 28, 2026, down $4.36 from its $29.76 close, after the solar and battery maker missed third-quarter estimates and guided fourth-quarter revenue far below what Wall Street expected. After the close on Oct 27 Enphase reported revenue of $293.3 million and non-GAAP earnings of $0.41 a share, then guided the fourth quarter to $225 million to $255 million, a midpoint of $240 million against a consensus near $300 million. Management said it sees no meaningful recovery in U.S. demand and will ship less than customers buy to drain distributor inventory. Oppenheimer downgraded the stock, JPMorgan cut its target, and the shares opened at a new 52-week low.

Our view: Bearish through December 31, 2026, when the fourth quarter ends and the guided $225 million to $255 million, the $108.3 million IRS refund management expects by year-end and the 34.5 kV validation of its data center transformer all come due. The guide is about 20% below consensus, U.S. sell-through is down 35% from a year ago, battery prices have been cut 8% to 9%, and Oppenheimer has cut its 2027 earnings estimate by 53%, so estimates have further to fall and the stock still trades near 23 times that new number. In its favor, the $931.8 million of cash is 28% of the market value, 23% of the float is sold short, the stock is oversold, and the third-quarter gross margin beat estimates. We would turn Neutral if fourth-quarter revenue lands at or above the $255 million top of the range, if U.S. sell-through stops falling, or if the battery price cut lifts orders without costing more margin. We would turn Bullish only if 2027 estimates stop being cut and gross margin holds above 43%.

Enphase daily closing price from Sep 14 to Oct 28, 2026, with the Oct 27 close and the Oct 28 drop marked

Key takeaways

Enphase fell 14.7% to $25.40 at 9:46am ET on Oct 28, 2026, from a $29.76 close, and set a 52-week low of $23.83 in the first minute of trading, after it missed third-quarter estimates and guided fourth-quarter revenue to $225 million to $255 million against a consensus near $300 million.
The guide is the problem, not the quarter: the $240 million midpoint is about 20% below consensus, and about $51.2 million of it is safe harbor revenue, down from $85.0 million in Q3, while management plans to ship about $20 million less than sell-through to cut distributor inventory.
U.S. sell-through rose 5% from the second quarter but was down 35% from a year earlier, and CEO Badri Kothandaraman said the company is "not seeing any meaningful recovery in the U.S. demand" as the Section 25D tax credit has expired and interest rates stay high.
Oppenheimer downgraded the stock to Perform and cut its 2027 earnings estimate from $2.37 to $1.11 a share; JPMorgan cut its target to $29 from $35 and kept Neutral. SolarEdge fell 10.8% on the read-through, against 4.1% for the TAN solar fund.
Our view is Bearish through December 31, 2026: estimates are still being reset, Q1 is seasonally weak and the stock trades near 23 times Oppenheimer's new 2027 earnings, even with $931.8 million of cash and 23% of the float sold short.

Table of contents

Oct 28, 2026: a new low at the open, then a partial bounce
What the quarter and the guide said
The case for the stock
The risks
What comes next

Oct 28, 2026: a new low at the open, then a partial bounce

Enphase fell through the premarket. It traded near $25.45 at 4am, touched $22.87 at its lowest, and stood at $23.84 just before the open. It opened at $23.89, hit its session and 52-week low of $23.83 in the first minute on about 4.2 million shares, then bounced to a high of $25.68 by 9:35am. At 9:46am it was $25.40, down 14.7%, on about 7.6 million shares.

What pushed it down:

The fourth-quarter guide. The $240 million midpoint is about 20% below the $300.5 million consensus reported by Investing.com and TIKR, and 18% below the third quarter. Non-GAAP gross margin is guided to 40% to 43%, against 45.7% expected, per Oppenheimer.
Analyst moves. Oppenheimer's Colin Rusch cut it to Perform from Outperform and dropped his price target. JPMorgan's Mark Strouse cut his target to $29 from $35 and kept Neutral, citing a weakening macro environment, particularly in Europe. TIKR reported that Roth Capital also downgraded the stock.
A sector read-through. JPMorgan said Enphase's European comments are negative for SolarEdge, which has more European exposure. At 9:46am these stocks and funds were down:

Stock or fund	Oct 27 close	9:46am ET	Change
Enphase (ENPH)	$29.76	$25.40	-14.7%
SolarEdge (SEDG)	$32.16	$28.70	-10.8%
Sunrun (RUN)	$7.53	$7.19	-4.5%
Invesco Solar ETF (TAN)	$42.02	$40.28	-4.1%
Shoals (SHLS)	$7.47	$7.18	-3.9%
Array (ARRY)	$3.39	$3.31	-2.4%
First Solar (FSLR)	$175.85	$171.70	-2.4%
Nextracker (NXT)	$79.44	$78.18	-1.6%

Enphase fell more than three times as much as the solar fund. SolarEdge, its closest rival in home solar equipment, fell 10.8%, while the utility-scale names fell 2% or less. That points to a problem in U.S. and European home solar, which Enphase's own numbers confirm.

After the drop, RSI(14) stood at 25, the shares sat 26% below their 50-day average and 39% below their 200-day average, volume by 9:44am was already 1.4 times its 20-day average, and the stock was 66% below its 52-week high of $73.74.

What the quarter and the guide said

The third quarter was weak but close to the company's own range. The fourth-quarter guide is where the shortfall sits.

Measure	Q3 2026	Q2 2026	Q4 2026 guide
Revenue	$293.3 million	$291.9 million	$225 million to $255 million
Safe harbor revenue	$85.0 million	$84.3 million	about $51.2 million
Non-GAAP gross margin	45.0%	46.8%	40% to 43%
Non-GAAP operating expenses	$78.4 million	$79.8 million	$76 million to $80 million
Non-GAAP earnings per share	$0.41
IQ Battery shipments	129.9 MWh	113.8 MWh	100 to 120 MWh

Third-quarter revenue was down 29% from $410.4 million a year earlier. Our arithmetic on the guide: remove safe harbor revenue and the base business goes from $208.3 million in Q3 to about $188.8 million at the midpoint, a 9% drop. Management said global sell-through rose only 1% in the third quarter, against the 10% it had expected, and will fall about 10% in the fourth. It plans to ship about $20 million below sell-through to cut distributor inventory before a slow first quarter, per the call transcript.

Bar chart of Enphase revenue in millions: Q3 actual $293.3, Q4 consensus $300.5, Q4 guide high $255, midpoint $240, low $225

Demand was uneven by region. U.S. sell-through rose 5% from the second quarter but was down 35% from a year earlier. Europe fell about 11% from the second quarter, with France the weak spot: battery activations there fell 12% and microinverter activations fell 24%, while Netherlands battery activations rose 23%. About two months before the call, Enphase cut U.S. battery list prices to distributors by roughly 8% to 9%, and management said it was too soon to judge the effect on orders. Oppenheimer pointed to storage price cuts as a new drag on gross margin. For how to read the guidance in a release like this, see our guide to the earnings release and how guidance changes move stocks.

Oppenheimer's new estimates show how far numbers are moving. It cut 2026 revenue to $1.104 billion from $1.203 billion and 2026 earnings to $1.60 from $2.08. For 2027 it cut revenue to $885 million from $1.242 billion and earnings to $1.11 from $2.37. At $25.40 the stock trades near 16 times 2026 and 23 times 2027 on those numbers. The forward P/E of about 15.5 and a consensus price target of $37.53 still reflect estimates from before the report; our piece on estimate revisions explains why those tend to fall after a guide like this, and forward vs trailing P/E covers the multiple.

The case for the stock

A strong balance sheet. Cash and marketable securities were $931.8 million, about 28% of the $3.3 billion market value, against $573.2 million of non-current debt. See our explainer on net cash per share.
Margins held in the quarter. Non-GAAP gross margin of 45.0% beat the 44.4% expected, and tariffs cost 1.3 points, down from 2.0 in the second quarter.
Batteries are growing. Shipments rose to 129.9 MWh, and management expects residential battery volume to grow about 50% in 2027, with the fifth-generation IQ Battery shipping in volume in the first quarter of 2027.
A crowded short. About 23% of the float is sold short, which can fuel sharp bounces; our guide to short interest and days to cover explains the risk both ways.
The data center option. The pipeline for its solid-state transformer for AI data centers has more than 50 potential customers. Pilots are planned for 2027 and commercial shipments for 2028, so it adds no revenue in the period that matters for this view.

The risks

Estimates are still falling. Oppenheimer cut 2027 earnings by 53%, and several firms have yet to publish. A stock is rarely cheap while the denominator is being cut.
U.S. demand has no floor yet. Sell-through is down 35% from a year ago, the Section 25D credit has expired and rates remain high.
Price cuts cut both ways. Lower battery prices may lift volume, but Oppenheimer notes the gross margin cost is visible and the demand response is not yet proven.
Weak cash generation. Operating cash flow was $0.1 million in the quarter and non-GAAP free cash flow was negative $11.4 million.
Quality of earnings. Third-quarter GAAP net income of $23.4 million included a $27.0 million tax benefit and a $26.6 million investment impairment charge in other expense.

For how to weigh management's tone against the numbers, see our guide to analyzing an earnings call transcript, and more of today's biggest stock moves.

What comes next

The rest of the analyst reset. More estimate cuts and target changes are likely over the next days. The consensus target of $37.53 is well above JPMorgan's $29.
Year-end items. Management expects the IRS to refund $108.3 million of 2024 production tax credits by year-end, and expects to validate its transformer demonstration at 34.5 kV in the fourth quarter.
Fourth-quarter results. The date has not been confirmed. They will show whether sell-through held at the guided 10% decline and whether the inventory drain is done before the seasonally weak first quarter.
Policy. Analysts on the call asked about tax credit extensions after the midterm elections; none is in place today.

Dombey's published work on earnings reactions is in the research archive.

Frequently asked questions

Why is Enphase stock down today?

Enphase fell 14.7% to $25.40 by 9:46am ET on Oct 28, from a $29.76 close. After the close on Oct 27 it reported third-quarter revenue of $293.3 million and non-GAAP earnings of $0.41 a share, both below estimates, and guided fourth-quarter revenue to $225 million to $255 million against a consensus near $300 million. It opened at $23.89 and touched $23.83, a new 52-week low.

What was Enphase's fourth-quarter guidance?

Revenue of $225 million to $255 million, including 100 to 120 MWh of IQ Battery shipments and about $51.2 million of safe harbor revenue. Non-GAAP gross margin is guided to 40% to 43%, against about 45.7% expected, and non-GAAP operating expenses to $76 million to $80 million. Management expects global sell-through to fall about 10% from the third quarter.

Did Enphase miss earnings estimates?

Yes. Third-quarter revenue of $293.3 million was below the $305 million consensus, though inside the company's own $290 million to $320 million guide. Non-GAAP earnings were $0.41 a share against $0.50 to $0.51 expected; an investment impairment cut that figure by $0.14. Non-GAAP gross margin of 45.0% was slightly above the 44.4% expected.

What did Enphase's CEO say about U.S. demand?

Badri Kothandaraman said on the call: "We are not seeing any meaningful recovery in the U.S. demand." The press release names higher interest rates as a headwind, and Investing.com reported that he also cited the expiration of the Section 25D federal tax credit. U.S. sell-through was down 35% from a year earlier.

Did analysts downgrade Enphase?

Oppenheimer analyst Colin Rusch cut it to Perform from Outperform and removed his price target, saying a recovery in the core business "is not materializing." TIKR reported that Roth Capital also downgraded the stock. JPMorgan's Mark Strouse lowered his target to $29 from $35 and kept a Neutral rating.

Is Enphase stock cheap after the drop?

It looks cheaper on old numbers than on new ones. The forward P/E is about 15.5 on estimates that have not yet been cut, and the price-to-sales ratio is 2.5. On Oppenheimer's new 2027 estimate of $1.11 a share, the stock trades near 23 times earnings. Cash of $931.8 million is about 28% of the $3.3 billion market value.

What would change our view on Enphase?

Our view is Bearish through Dec 31, 2026. We would move to Neutral if the fourth-quarter result lands at or above the top of the $225 million to $255 million range, if U.S. sell-through stops falling, or if the 8% to 9% battery price cut visibly lifts orders without further margin loss.

Sources

Article details

By James Whitfield, Head of Equity Research, Dombey Capital

Published October 28, 2026 · 7 min read · Event-Driven Investing