Lennox shares have fallen nearly 39% from their 52-week high as a delayed recovery in residential HVAC demand overwhelms strong commercial growth and forces investors to reassess how quickly earnings can begin expanding again.
The stock closed Friday at $359.23, just above its 52-week low of $350.22 and well below the $587.27 peak reached during the past year. Lennox is now down roughly 25% in 2026.
The decline did not come from a collapse across the entire business.
Lennox’s commercial operation is growing rapidly, cash generation remains healthy and management still expects approximately 8% full-year revenue growth.
The weakness is concentrated in Home Comfort Solutions, where residential volumes remain below expectations and management no longer expects the most meaningful recovery to arrive during the second half of 2026.
It now sees those benefits extending into 2027.
That delay triggered a major repricing after second-quarter earnings and continues to shape Wall Street’s view of the stock.
Deutsche Bank reinforced the caution this month by downgrading Lennox to Hold from Buy and cutting its price target to $444 from $609. Morgan Stanley had already reduced its target to $375 while maintaining an Underweight rating.
Residential Volume Is the Problem
Lennox reported second-quarter revenue of $1.55 billion, up 3% from a year earlier, while operating income increased 2% to $355 million. Diluted earnings were essentially unchanged at $7.72 a share.
Those consolidated numbers hide a large divide between the company’s two businesses.
Home Comfort Solutions generated $936 million of revenue, down 7%, while segment profit fell 12% to $222 million. Its margin contracted 130 basis points to 23.7%.
Unit volumes fell 12%.
That was considerably better than the 21% decline during the first quarter, but still weak enough to create approximately $50 million of EBIT pressure during the period.
The decline was not evenly distributed.
Lennox said volumes through its two-step distribution channel were roughly flat from a year earlier, while one-step volumes declined by the mid-teens. Residential new-construction revenue fell approximately 30%, with management intentionally walking away from some lower-margin business.
That makes the residential problem more complicated than simply saying homeowners have stopped replacing air conditioners.
New construction is weak.
Affordability is pressuring households.
Consumer confidence has been soft.
And some homeowners are repairing existing equipment rather than paying for a complete replacement.
Management believes much of that repair activity represents delayed rather than permanently lost demand. An aging system repaired today may still need to be replaced later.
The timing of that replacement cycle is what investors cannot confidently predict.
A Recovery Lennox Expected This Year Has Moved Into 2027
Lennox began 2026 expecting residential conditions to improve meaningfully during the back half of the year.
That timetable has slipped.
Chief Executive Alok Maskara told investors in July that elevated borrowing costs, inflation and weak consumer confidence were still restricting demand and that the most meaningful residential recovery would now extend into 2027.
The company consequently reduced its Home Comfort Solutions full-year revenue-growth expectation to roughly 1% from about 4%.
The revision matters because Lennox’s earnings model is sensitive to equipment volume.
When factories produce fewer systems, fixed manufacturing costs are spread across fewer units. That weakens margins even when the company raises prices.
Lennox recorded roughly $10 million of factory-absorption pressure in Home Comfort during the second quarter alongside the much larger effect from lower sales volume.
Pricing and product mix helped.
They added about three percentage points to Home Comfort revenue growth and provided $24 million of segment-profit benefit.
They were not enough to offset the decline in units.
Commercial HVAC Is Moving in the Opposite Direction
Lennox’s commercial business looks considerably healthier.
Building Climate Solutions generated $610 million of second-quarter revenue, up 24%, while segment profit increased 29% to $155 million.
The segment’s profit margin expanded one percentage point to 25.5%.
Organic revenue increased 15%, driven by national-account customers, emergency replacement activity and expanding service offerings, while acquisitions supplied the remainder of the growth.
Management responded by increasing its full-year Building Climate Solutions revenue outlook to approximately 20% growth from 16%.
Commercial strength is therefore doing exactly what a diversified portfolio is supposed to do: offsetting weakness elsewhere.
It has not been enough to preserve Lennox’s previous earnings expectations.
Full-year EPS guidance was reduced to $23 to $24 from $23.50 to $25.
At Friday’s closing price, Lennox trades at roughly 15 times the midpoint of that earnings forecast.
That is a dramatically lower valuation than investors assigned the stock near its highs.
It does not automatically make the shares inexpensive.
The multiple only becomes attractive if the earnings estimate proves durable and residential growth eventually returns.
Headline Revenue Growth Is Heavily Acquisition-Driven
Another number deserves attention.
Lennox continues to forecast approximately 8% revenue growth for 2026.
About five percentage points are expected to come from completed acquisitions.
That implies underlying growth closer to 3% before acquisitions.
Duro Dyne and Supco, acquired in 2025, have strengthened Lennox’s commercial and parts operations. The company also recently acquired the Comfort-Aire and Century brands, using about $200 million of debt.
Management expects that transaction to become accretive to earnings in 2027.
Acquisitions are legitimate growth.
But they make the headline 8% number look considerably stronger than demand in Lennox’s existing businesses, particularly residential HVAC.
The Balance Sheet Is Not the Main Concern
Despite the earnings reset, Lennox does not appear financially stressed.
The company generated $172 million of operating cash flow during the second quarter, nearly double the $87 million generated a year earlier.
It continues to forecast $750 million to $850 million of free cash flow for the full year.
Net debt was 1.3 times adjusted EBITDA at the end of June, and Lennox repurchased approximately $130 million of stock during the quarter.
That gives management room to continue investing, repurchasing shares and pursuing smaller acquisitions while residential conditions remain weak.
The issue is earnings momentum rather than liquidity.
What the Next Quarter Needs to Show
The source article frames Lennox as a choice between a bargain and a value trap.
The company’s financial results do not support such a clean distinction yet.
Commercial demand is strong.
Free cash flow remains substantial.
Residential replacement demand has not disappeared.
But Lennox expected that residential market to recover sooner, and the recovery keeps moving further into the future.
The next quarterly report should therefore be judged primarily on Home Comfort volumes rather than consolidated revenue alone.
A meaningful improvement from the second quarter’s 12% unit decline would provide evidence that deferred replacement activity is beginning to convert into equipment purchases.
Continued double-digit volume declines would make the 2027 recovery assumption more important—and more difficult for investors to confidently price.
Commercial growth also needs to remain strong enough to keep absorbing part of the residential weakness.
At $359, Lennox shares already reflect far more skepticism than they did near $587.
The next move depends less on how far the stock has fallen than on whether homeowners finally begin replacing the HVAC systems they have spent the past year repairing.