Latham Group, Inc. (SWIM) Q3 2026 earnings review
Latham fiberglass pool sales surge, but rising overhead squeezes margins
Latham Group, the largest maker of in-ground residential swimming pools in North America, grew rapidly in fibreglass pools while its vinyl liner business slipped. Total revenue rose 13% from a year ago, and sales in the key Sand States jumped 21%, chief executive Sean Gadd said. Factory efficiency lifted gross margin, and the company narrowed its full-year outlook around the same middle target, leaving 13% fourth-quarter sales growth by our math.
| Sales from businesses owned a year ago | +8.4% total net sales $182.2M (+12.5%) |
|---|---|
| Sand States sales growth | +21.1% +16.6% over the first nine months |
| Gross margin | 36.7% +1.3 percentage points from a year ago |
| Full-year sales and profit outlook | Narrowed middle of the range unchanged at $610M and $115M |
⚖️ Verdict: 🟢 Bullish
The story got better because third-quarter growth proved that summer pool demand was not just a one-time catch-up from wet spring weather. Factory margins recovered from second-quarter rush costs, and a debt refinancing to 2033 plus lower leverage cleared the way for a $100 million share buyback. One caution: heavy sales investments and acquisition payouts pushed overhead up 26%, causing standard operating margin to slip even as profit excluding one-offs rose.
The question now is whether higher marketing and sales overhead will pay off in 2027 without a rebound in U.S. housing and pool construction. Either the new Florida and Texas sales teams drive enough fiberglass volume to cover their cost, or overhead keeps eating into factory gains while vinyl liners lag. Management's initial 2027 outlook on the fourth-quarter call will tell.
🐂 Bull Case
Sand States Sales Rose 21% as Strategy Delivers
"The Sand States remain a key growth market for Latham, which we believe has the potential to drive a step-change in companywide sales," chief executive Sean Gadd said. The Sand States are Florida, Texas, Arizona and California, where most U.S. swimming pools are built but where concrete pools still dominate. After giving only vague updates for two quarters, the pool maker reported that regional sales rose 21.1% from a year ago, lifting nine-month growth to 16.6%.
Gadd credited Florida and Texas for the pickup. Latham hosted community pool events in Florida neighborhoods and "partnered with a national homebuilder to offer Latham fiberglass pools as an option for its new home construction in Florida", installing its first pool in a model home. It also hired Todd Antonelli as chief commercial officer, "establishing the foundation for a world-class commercial organization" while adding field sales staff.
What to watch: whether the national homebuilder expands the Florida option to additional communities in 2027. A wider rollout would give the manufacturer recurring volume without having to win each backyard buyer one by one.
Fiberglass Pools Carried Underlying Growth
Skeptics worried that second-quarter demand was just a one-time bounce after cold spring weather delayed early pool builds. Third-quarter results argued against that concern, as sales from businesses owned a year ago grew 8.4% even without the Freedom Pools acquisition in Australia and New Zealand. In-ground pool revenue led the quarter, and Gadd said fiberglass models are winning buyers "for their ease of installation, cost efficiency, durability, lifetime warranty, and low maintenance costs".
- In-ground pool sales: $92.4 million, up 22.6% from a year ago
- Underlying in-ground pool growth: up 13.9%, excluding Freedom Pools
- Target U.S. market share for fiberglass: about 25% of in-ground pools in 2026, up at least 1 percentage point
What to watch: fourth-quarter underlying sales growth. By our math, the full-year outlook points to 13.1% total sales growth in the fourth quarter, which will test demand against last year's warm-weather finish.
Factory Volume Lifted Gross Margin by 1.3 Points
In the second quarter, gross margin fell because factories scrambled to meet a sudden fiberglass order rush. Management promised to recover most of that $2.8 million cost in the second half as plants rebuilt stock. In the third quarter, cost of sales—the direct cost of making pools, liners and covers—fell by 1.3 percentage points of revenue to 63.3%, lifting gross margin to 36.7%.
Latham said the gain came from "reflecting greater plant absorption on higher volumes and the ongoing benefits from our lean manufacturing and value engineering initiatives". Ending inventory rose 23.3% from a year ago to $86.7 million by our math, showing that plants restocked as planned and absorbed fixed overhead despite raw material inflation.
What to watch: fourth-quarter gross margin. Holding above last year's 28.0% fourth-quarter level would confirm that factory efficiency and August liner price increases outran oil-linked resin costs.
Refinancing and Lower Debt Cleared a $100M Buyback
A standing concern was Latham's $75 million credit line maturing in February 2027 and its floating-rate debt. During the third quarter, the group completed a refinancing with a new $75 million credit line and a $300 million term loan "to extend maturities until 2033 and provide additional flexibility to advance our strategic priorities". The transaction triggered a one-time $5.0 million debt extinguishment loss, but net interest expense still fell 10.6% from a year ago to $5.4 million.
Strong summer cash generation cut net debt to 1.8 times trailing twelve-month Adjusted EBITDA (earnings before interest, taxes, depreciation, amortization and one-offs), beating the year-end target of below 2.0 times a quarter early. With the balance sheet settled, the board approved a three-year, $100 million share buyback program.
What to watch: actual share repurchases in the fourth quarter and the new interest rate on the 2033 term loan in the quarterly filing. Buying back shares during the slow winter season would lower the share count before peak 2027 earnings.
🐻 Bear Case
Sales Overhead and Deal Costs Cut Operating Margin
Gadd highlighted "achieving considerable operating leverage while investing to accelerate growth", pointing to an 18.1% jump in Adjusted EBITDA to $45.3 million. However, standard accounting tells a tighter story because selling, general and administrative expenses—sales, marketing and corporate overhead—jumped 25.5% from a year ago to $35.9 million.
- Overhead as a share of sales: 19.7%, up 2.0 percentage points from a year ago by our math
- Coverstar Central earn-out expense in overhead: $3.2 million in the quarter, $7.7 million year to date
- Operating margin: 13.0%, down 0.3 percentage points from 13.3% a year ago by our math
Because Latham adds back the Coverstar acquisition payouts and $1.5 million of restructuring charges to its preferred profit metric, Adjusted EBITDA margin rose 1.1 percentage points to 24.8% while standard operating margin slipped. Even stripping out the $3.2 million payout, overhead grew slightly faster than revenue by our math because of Sand States marketing and digital software spending.
What to watch: whether acquisition and integration add-backs drop in 2027 once the Coverstar Central payout period ends. Only a drop in reported overhead will let factory gains reach bottom-line operating profit.
Liner Sales Shrank While Pool Market Stays Flat
While fiberglass pools grew rapidly, Latham's vinyl liners business—which sells new and replacement liners for packaged pools—moved backward. Third-quarter liner revenue fell 4.9% from a year ago to $30.1 million by our math, after growing 6.0% in the second quarter. Gadd noted that the broader U.S. industry remains a "challenging market", as high borrowing costs keep overall new pool construction flat.
That weakness matters because vinyl liners make up 23% of nine-month revenue and carry steady replacement demand. At the same time, the narrowed full-year outlook leaves $113.0 million of total sales for the fourth quarter at the middle of the range, requiring 13.1% growth by our math against a year-ago quarter when warm weather extended the building season.
What to watch: fourth-quarter liner sales and management's 2027 U.S. pool starts outlook on the fourth-quarter call. Another drop in liners would mean homeowners are delaying even basic replacement maintenance.
💲 Other KPIs
Pool cover revenue rose 8.7% from a year ago, keeping a steady double-digit or near-double-digit pace after growing 10.0% in the second quarter and 6.0% in the first. Growth came from automatic safety covers—motorized covers that seal a pool at the flip of a switch—and cross-selling through acquired Coverstar dealers.
Operating cash flow of $48.8 million minus $6.1 million of capital spending produced $42.7 million of free cash flow by our math, down 5.5% from $45.2 million a year ago. Cash generation remained seasonal and high at 23.4% of sales, even as the manufacturer rebuilt inventory by $9.3 million over the first nine months.
Bottom-line profit rose 48.5% from $8.1 million a year ago, or to $0.10 per diluted share from $0.07, reversing a second-quarter drop. Profit grew despite a one-time $5.0 million debt refinancing loss because currency swings turned slightly positive and the effective tax rate fell to 19.7% from 47.9% a year ago.
🔮 Guidance
Unchanged at the middle of the range. Latham narrowed the band by $5 million on each side, keeping the $610 million midpoint and 11.7% full-year growth target after raising it by $15 million last quarter. By our math, that leaves $113.0 million for the fourth quarter, or 13.1% growth from a year ago against 12.5% in the third quarter.
Unchanged at the middle of the range. Management trimmed the top and bottom by $2 million, holding the $115 million midpoint (up 15.2% from 2025) after a $2.5 million raise in the second quarter. By our math, the plan leaves $13.0 million for the fourth quarter, up 23.7% from a year ago with an 11.5% margin.
Unchanged. The spending plan stays at a $42.5 million midpoint after being lowered from $42–48 million last quarter, and it includes the earlier purchase of four fiberglass factory sites. With $34.2 million spent across the first nine months, the outlook leaves about $8.3 million for the fourth quarter by our math.
❓ Key Questions
Why did vinyl liner sales fall 5% in Q3?
Liner revenue dropped 4.9% from a year ago to $30.1 million despite an August price increase. Did dealers buy ahead of the price hike in the second quarter, or are homeowners putting off replacement liners?
What is the interest rate on the new 2033 loan?
Latham extended its $300 million term loan and $75 million credit line to 2033, booking a $5.0 million refinancing loss. What is the new interest spread, and did the company replace the interest rate hedge that expires in May 2027?
When do Coverstar earn-out charges end?
Performance payouts for the 2024 Coverstar Central acquisition cost $3.2 million in the third quarter and $7.7 million over nine months, weighing on operating profit. How much remains for the fourth quarter and 2027?
Where does fiberglass share of pool sales stand for 2026?
Management previously targeted fiberglass to reach about 80% of Latham's in-ground pool revenue this year, up from 76.5% in 2025. The press release did not update that figure; where is it tracking after the third quarter?