Cash flow generation remains highly volatile, characterized by a wide swing in the operating cash flow to net income ratio from -0.30 in 2025Q1 to 2.85 in 2025Q4, largely driven by working capital fluctuations.
| Metric | TTM | Dec'25 | Dec'24 | Dec'23 | Dec'22 | Dec'21 | Dec'20 | Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Dec'11 | Dec'10 | Dec'09 | Dec'08 | Dec'07 | Dec'06 | Dec'05 | Dec'04 | Dec'03 | Dec'02 | Dec'01 | Dec'00 | Dec'99 | Dec'98 |
|---|
| Cash from Operations | 809.5M | 757.6M | 945.7M | 736.2M | 302.3M | 515.5M | 612.4M | 396.1M | 495.5M | 325.1M | 354.5M | 331.2M | 184.8M | 210.3M | 221.4M | 76.2M | 185.8M | 225.5M | 183.2M | 238.1M | 199.7M | 228.7M | 55.9M | 56.7M | 167.89M | 211.97M | 245.09M | 70.6M | 5M |
| Operating CF Margin % | - | 14.58% | 17.71% | 14.78% | 6.41% | 12.29% | 16.85% | 10.4% | 12.76% | 8.47% | 9.73% | 9.55% | 5.49% | 6.57% | 7.51% | 2.31% | 6% | 7.92% | 5.26% | 6.35% | 5.44% | 6.79% | 1.87% | 1.84% | 5.55% | 6.79% | 7.55% | 2.99% | 0.27% |
| Operating CF Growth % | 80.77% | -19.89% | 28.46% | 143.53% | -41.36% | -15.82% | 54.61% | -20.06% | 52.41% | -8.29% | 7.03% | 79.22% | -12.13% | -5.01% | 190.55% | -58.99% | -17.61% | 23.09% | -23.06% | 19.23% | -12.68% | 309.12% | -1.41% | -66.23% | -20.8% | -13.52% | 247.16% | 1312% | - |
| Net Income | 783.1M | 805.8M | 806.9M | 590.1M | 497.1M | 464M | 356.3M | 408.7M | 359M | 305.7M | 277.8M | 187.2M | 208.1M | 179.9M | 135M | 88.3M | 116.2M | 51.1M | 122.8M | 169M | 166M | 150.7M | -134.4M | 84.4M | -190.42M | -42.4M | 59.06M | 73.2M | 52.5M |
| Depreciation & Amortization | 116.1M | 112.5M | 95.1M | 86M | 77.9M | 72.4M | 72.6M | 71.1M | 66M | 64.6M | 58.1M | 62.8M | 60.8M | 58.9M | 55.4M | 60.4M | 53.5M | 52.9M | 50.6M | 48.8M | 44.3M | 37.4M | 42.6M | 48.7M | 56.65M | 82.53M | 84.41M | 57.4M | 43.5M |
| Stock-Based Compensation | 29.1M | 29.1M | 28.5M | 30.1M | 21.8M | 24.3M | 24.3M | 21.3M | 26.3M | 24.9M | 31.7M | 26.6M | 23.3M | 29.3M | 15.2M | 13.7M | 15.4M | 12.8M | 11.8M | 21M | 24.4M | 28.8M | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Deferred Taxes | 27.7M | 20.2M | -24.5M | -26M | -15.2M | -5.4M | 7.2M | 16.6M | 25.2M | 43.3M | -4M | -21.3M | 6.1M | 3.5M | -2.7M | 3.6M | -9.5M | 6.7M | 25M | 5.7M | -26.3M | 11.9M | 3.2M | 5M | -17.31M | 0 | -21.03M | 4.5M | 0 |
| Other Non-Cash Items | -386M | 14.3M | -2.8M | 47.2M | -11.4M | 12.8M | 15.9M | 44.6M | 14.3M | 2.1M | -17.9M | 58.3M | -11.8M | -7.3M | -26.4M | 22.7M | 3.7M | 24.8M | -2.3M | 10.6M | 26.3M | -40.4M | 248.2M | 9.7M | 229.37M | 69.7M | 1.2M | 100K | 2.7M |
| Working Capital Changes | 239.5M | -224.3M | 42.5M | 8.8M | -267.9M | -52.6M | 136.1M | -166.2M | 4.7M | -115.5M | 8.8M | 17.6M | -101.7M | -54M | 44.9M | -112.5M | 6.5M | 77.2M | -24.7M | -17M | -35M | 40.3M | -103.7M | -91.1M | 89.59M | 102.13M | 121.46M | -68.5M | -93.7M |
| Change in Receivables | 121.7M | 108.9M | -80.4M | -32.7M | -112.4M | -68.8M | 26.5M | -35.9M | -4.2M | -34.2M | -14.3M | -20.9M | -34.2M | -49.9M | 44.7M | -77.1M | 15.8M | 48.8M | 10.4M | 18.8M | 8.2M | -414.9M | -320.7M | -317.2M | 0 | 0 | 0 | 0 | 0 |
| Change in Inventory | -93.8M | -228.2M | -10.1M | 11.1M | -249.3M | -71M | 110.3M | -63.9M | -84.2M | -56.4M | 300K | 28.8M | -96.7M | -19.5M | -55.8M | -28.8M | -31.1M | 51.8M | 15M | -6.7M | -47.3M | 100K | -28.3M | 900K | 49.52M | 62.15M | -3.32M | -9.3M | -52.4M |
| Change in Payables | -128.4M | -74.2M | 115M | -29.2M | 28.2M | 55.2M | -31.7M | -56.1M | 102.2M | -18.5M | 40.1M | -2.9M | 46.1M | -10.9M | 37.1M | -5.9M | 33.6M | -5.4M | -44.2M | 100K | -25.9M | 64.4M | -15.4M | -5M | 0 | 0 | 0 | 0 | 0 |
| Cash from Investing | -688.7M | -655.6M | -174.4M | -319.7M | -103M | -106.4M | -79.7M | 15.9M | 30.5M | -98.1M | -84.1M | -69.8M | -87.3M | -67.3M | -40.4M | -177.8M | -61.4M | -14M | -66.5M | -95.8M | -94.5M | -20.8M | -16.4M | -22.4M | 32.67M | -32.9M | -302.88M | -407.4M | -212.4M |
| Capital Expenditures | -148.8M | -118.8M | -163.6M | -250.2M | -101.1M | -106.8M | -78.5M | -105.6M | -95.2M | -98.3M | -84.3M | -69.9M | -88.4M | -78.3M | -50.2M | -43.2M | -45.8M | -58.8M | -62.1M | -68.4M | -73.8M | -63.3M | -40.3M | -41.2M | -22.73M | -17.42M | -58.31M | -410.4M | -212.5M |
| CapEx % of Revenue | 2.83% | 2.29% | 3.06% | 5.02% | 2.14% | 2.55% | 2.16% | 2.77% | 2.45% | 2.56% | 2.31% | 2.02% | 2.63% | 2.45% | 1.7% | 1.31% | 1.48% | 2.07% | 1.78% | 1.82% | 2.01% | 1.88% | 1.35% | 1.34% | 0.75% | 0.56% | 1.8% | 17.38% | 11.66% |
| Acquisitions | -544.5M | -543.6M | 0 | -71.7M | 1.6M | 900K | 1M | 43.5M | 114.7M | 200K | 200K | 0 | 0 | 8.6M | 10.1M | -147.1M | -3.6M | 10M | -4.7M | 0 | 0 | 0 | 0 | -700K | -4.67M | -19.39M | -247.37M | 0 | 0 |
| Investments | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Investing | -600K | 0 | -3.4M | 2.2M | 1.6M | 400K | 1M | 79.6M | 11M | 200K | 200K | 100K | 1.1M | 2.4M | -300K | 12.5M | -12M | 600K | 5.8M | 800K | 3.5M | 700K | 600K | 19.5M | 60.07M | 3.91M | 2.8M | 3M | 100K |
| Cash from Financing | -267.4M | -465.7M | -418.6M | -406.2M | -174.1M | -498.7M | -441.8M | -423.4M | -537.8M | -218.3M | -255.2M | -248.7M | -89.5M | -150.2M | -180.1M | -11.9M | -93.5M | -211.7M | -132M | -152.7M | -175.5M | -56.9M | -55.1M | -31.9M | -160.13M | -184.79M | 70.38M | 338.7M | 89.5M |
| Debt Issued (Net) | 359.4M | 204.8M | -187.6M | -241.8M | 272.6M | 244.2M | -201.3M | 108.1M | 29.9M | 134.6M | 129.3M | -182.2M | 524.2M | 13M | -78.9M | 145.9M | 86.6M | -189.3M | 193.8M | 98.3M | -11.6M | -45.5M | -52.3M | -19.2M | -142.2M | -167.15M | 111.17M | 223.6M | 99.2M |
| Equity Issued (Net) | -419.1M | -497.5M | -70.7M | -11M | -308.3M | -622.1M | -117.9M | -424M | -446.9M | -276.1M | -333.3M | -29.6M | -570.7M | -135.2M | -57.1M | -120.5M | -153.7M | -5.6M | -323.8M | -253.6M | -143.6M | 10M | 20.3M | 12.1M | 9.7M | 3.67M | -24.53M | 129.4M | 1.1M |
| Dividends Paid | -207.2M | -173M | -160.3M | -153.4M | -142M | -126.5M | -118.1M | -110.5M | -93.9M | -79.7M | -69M | -59.3M | -52.6M | -34M | -47.6M | -36.5M | -32.4M | -31.1M | -32.4M | -35M | -31.3M | -24.8M | -22.8M | -22.1M | -21.71M | -21.31M | -16.26M | -14.2M | -10.8M |
| Share Repurchases | -421.7M | -501.5M | -75.2M | -14.9M | -308.3M | -622.1M | -117.9M | -424M | -477.1M | -276.1M | -333.3M | -32M | -572.7M | -137M | -57.9M | -123M | -153.7M | -5.6M | -323.8M | -253.6M | -163.4M | -15.8M | -100K | -400K | -300K | -214K | -25.32M | -12.5M | -8.5M |
| Other Financing | -500K | 0 | 0 | 0 | 3.6M | 5.7M | -4.5M | 3M | -26.9M | 2.9M | 17.8M | 22.4M | 9.6M | 6M | 3.5M | -800K | 6M | 14.3M | 30.4M | 37.6M | 11M | 3.4M | -300K | -2.7M | -5.93M | 0 | 0 | -100K | 0 |
| Net Change in Cash | -168.5M | -362.4M | 354.4M | 8.1M | 21.6M | -92.9M | 86.6M | -9M | -21.9M | 18M | 11.3M | 1.4M | -500K | -13.8M | 6.8M | -115M | 35.7M | 2.2M | -23.4M | 1.2M | -69.2M | 152.6M | -15.2M | 1.7M | 41.98M | -6.24M | 11.46M | 800K | -119.4M |
| Free Cash Flow | 660.7M | 638.8M | 782.1M | 486M | 201.2M | 408.7M | 533.9M | 290.5M | 400.3M | 226.8M | 270.2M | 261.3M | 96.4M | 132M | 171.2M | 33M | 140M | 166.7M | 121.1M | 169.7M | 125.9M | 165.4M | 15.6M | 15.5M | 145.16M | 194.55M | 186.79M | -339.8M | -207.5M |
| FCF Margin % | 12.57% | 12.3% | 14.64% | 9.76% | 4.26% | 9.74% | 14.69% | 7.63% | 10.31% | 5.91% | 7.42% | 7.54% | 2.86% | 4.13% | 5.8% | 1% | 4.52% | 5.85% | 3.48% | 4.53% | 3.43% | 4.91% | 0.52% | 0.5% | 4.8% | 6.24% | 5.75% | -14.39% | -11.39% |
| FCF Growth % | -14.54% | -18.32% | 60.93% | 141.55% | -50.77% | -23.45% | 83.79% | -27.43% | 76.5% | -16.06% | 3.41% | 171.06% | -26.97% | -22.9% | 418.79% | -76.43% | -16.02% | 37.65% | -28.64% | 34.79% | -23.88% | 960.26% | 0.65% | -89.32% | -25.39% | 4.16% | 154.97% | -63.76% | - |
| FCF per Share | 18.88 | 18.20 | 21.85 | 13.61 | 5.62 | 10.90 | 13.83 | 7.37 | 9.74 | 5.30 | 6.14 | 5.73 | 1.98 | 2.61 | 3.33 | 0.62 | 2.51 | 2.96 | 2.08 | 2.45 | 1.71 | 2.24 | 0.26 | 0.24 | 2.47 | 3.74 | 3.30 | -8.40 | -5.81 |
| FCF Conversion (FCF/Net Income) | 0.84x | 0.96x | 1.17x | 1.25x | 0.61x | 1.11x | 1.72x | 0.97x | 1.38x | 1.06x | 1.28x | 1.77x | 0.90x | 1.22x | 2.46x | 0.86x | 1.60x | 4.41x | 1.49x | 1.41x | 1.20x | 1.52x | -0.42x | 0.67x | -0.88x | -5.00x | 4.15x | 0.96x | 0.10x |
| Interest Paid | 20.5M | 0 | 45.2M | 50.2M | 35.4M | 23.8M | 25.3M | 46.8M | 38.7M | 32.4M | 26.3M | 23.7M | 17.6M | 15.7M | 18.2M | 17.8M | 12.4M | 8.4M | 17.6M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Taxes Paid | 86.4M | 0 | 231.9M | 197.8M | 77.2M | 128.5M | 90.3M | 83M | 90M | 119.3M | 127.4M | 83.2M | 105.3M | 56.8M | 30.1M | 49.5M | 45.5M | 32.1M | 41.9M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Working capital volatility
As reported in recent financial statements, Lennox's operating cash flow to net income ratio has fluctuated wildly, reaching a low of -0.30 in 2025Q1 and a high of 2.85 in 2025Q4, suggesting that reported earnings are frequently decoupled from actual cash generation on a quarterly basis.
The significant variance between net income and operating cash flow suggests that accrual-based accounting, particularly regarding inventory and warranty provisions, creates substantial noise in short-term performance metrics. Investors should monitor whether this disconnect reflects genuine operational friction or merely the timing of seasonal inventory builds inherent to the HVAC replacement cycle.
Based on the provided quarterly data, working capital changes have been the primary driver of cash flow volatility, with a massive $401.8 million inflow in 2025Q3 followed by a $145.2 million outflow in 2026Q1, highlighting the company's sensitivity to seasonal inventory and receivable management.
The extreme swings in working capital suggest that Lennox's cash position is highly dependent on the timing of dealer inventory stocking and the subsequent collection cycle. This pattern implies that the company's liquidity profile is inherently seasonal, requiring careful management to avoid cash crunches during the off-peak quarters.
According to historical cash flow filings, Lennox has maintained a disciplined capital expenditure profile, with CapEx as a percentage of revenue averaging roughly 3% over the last ten quarters, excluding the anomalous 10.8% spike observed in 2023Q4 which warrants further investigation by analysts.
The relatively low capital intensity suggests that the company's manufacturing footprint is well-established and does not require constant, heavy reinvestment to maintain its competitive position. However, the occasional spikes in capital spending may indicate periodic upgrades to production lines or the integration of new refrigerant-compliant technologies that could impact future free cash flow.
As evidenced by the quarterly cash flow tables, Lennox consistently prioritizes shareholder returns, with buybacks totaling over $200 million in 2025Q2 alone, a trend that appears to persist despite the underlying volatility in operating cash flow and the company's reported debt-to-equity profile.
The commitment to share repurchases, even during periods of negative free cash flow, suggests a management philosophy that prioritizes capital return over maintaining a conservative cash buffer. This strategy may leave the company vulnerable to liquidity shocks if the residential replacement market experiences a prolonged downturn or if debt refinancing costs rise significantly.
Quick answers to the most common questions about buying LII stock.
Lennox International Inc. (LII) generated $757.6M in net cash from operating activities in 2025. This reflects the cash generated directly from core business operations.
Lennox International Inc. (LII) generated $638.8M in free cash flow in 2025. Free cash flow is the cash left over after capital expenditures, which can be used to pay dividends, repurchase shares, or pay down debt.
Lennox International Inc. (LII) spent $118.8M on capital expenditures in 2025. CapEx represents the cash invested in physical assets like property, plant, and equipment to maintain or grow the business.
In 2025, Lennox International Inc. (LII) returned $173.0M to shareholders via cash dividends and spent $501.5M on share repurchases. This shows the company's commitment to returning capital to its equity investors.