Cash flow generation is highly volatile, as demonstrated by the OCF/NI ratio swinging from 0.19 in 2024Q4 to 2.88 in 2026Q3, complicating the assessment of underlying earnings quality.
| Metric | Mar'26 | Mar'25 | Mar'24 | Mar'23 | Mar'22 | Mar'21 | Mar'20 | Mar'19 | Mar'18 | Mar'17 | Mar'16 | Mar'15 | Mar'14 | Mar'13 | Mar'12 |
|---|
| Cash from Operations | 819.05M | 581.49M | 717.93M | 707.81M | 274.89M | 452.22M | 306.19M | 151.68M | 137.12M | 104.24M | 134.76M | 68.58M | 62.12M | 75.35M | 57M |
| Operating CF Margin % | 26.85% | 20.02% | 24.98% | 23.05% | 9.93% | 22.81% | 18.29% | 10.95% | 10.31% | 8.29% | 10.45% | 5.82% | 5.81% | 7.41% | 5.62% |
| Operating CF Growth % | 40.85% | -19% | 1.43% | 157.49% | -39.21% | 47.69% | 101.87% | 10.62% | 31.54% | -22.65% | 96.51% | 10.39% | -17.56% | 32.21% | - |
| Net Income | 489.16M | 452.57M | 513.29M | 511.35M | 275.03M | 226.09M | -191.8M | 81.47M | 64.79M | 35.91M | 30.57M | -3.7M | 11.32M | 23.18M | 44.43M |
| Depreciation & Amortization | 216.26M | 183.28M | 154.9M | 145.15M | 141.81M | 145.59M | 124.94M | 71.9M | 75M | 72.36M | 71.01M | 65.47M | 63.67M | 63.1M | 55.17M |
| Stock-Based Compensation | 32.35M | 26.58M | 31.99M | 21.66M | 107.99M | 65.43M | 279.15M | 21.83M | 18.84M | 17.88M | 4.38M | 37.4M | 35.03M | 9.36M | 6.38M |
| Deferred Taxes | 35.38M | -423K | -2.28M | -9.86M | 2.17M | -13.48M | -2.92M | 12.81M | -11.24M | -8.97M | 10.69M | -18.76M | -8.26M | -7.15M | -5.56M |
| Other Non-Cash Items | -35.27M | 1.65M | -6.13M | 6.13M | -10.88M | 7.87M | 42.91M | 1.6M | 12.09M | -4.37M | 17.35M | 10.79M | 6.63M | 177K | -36.61M |
| Working Capital Changes | 81.17M | -82.17M | 26.16M | 33.38M | -241.24M | 20.71M | 53.91M | -37.93M | -22.38M | -8.56M | 1.34M | -16.83M | -36M | -13.32M | -6.82M |
| Change in Receivables | -2.29M | 1.41M | -14.59M | 37.49M | -96.99M | -34.76M | 5.17M | -17.95M | -4.33M | 15.05M | -37.79M | -10.35M | -6.72M | 24.75M | -29.66M |
| Change in Inventory | 30.61M | -15.75M | 594K | 30.22M | -189.72M | -14.56M | 19.09M | -2.03M | -4.84M | -27.92M | 28.33M | -7.56M | -33.1M | -32.16M | 13.72M |
| Change in Payables | 53.96M | -63.86M | 40.43M | -29.04M | 50.11M | 71.24M | 31.59M | -16.94M | -14.86M | 6.85M | 0 | -18.86M | 7.29M | 0 | 11.77M |
| Cash from Investing | -1.21B | -447.87M | -155.66M | -214.48M | -198.83M | -77.87M | -1.15B | -42.54M | -30.45M | -61.26M | -48.96M | -80.49M | -41.77M | -44.8M | -35.83M |
| Capital Expenditures | -249.77M | -212.94M | -183.81M | -166.91M | -149.08M | -78.76M | -67.68M | -43.41M | -41.71M | -51.3M | -44.89M | -36.1M | -43.6M | -39.84M | -29.86M |
| CapEx % of Revenue | 8.19% | 7.33% | 6.39% | 5.43% | 5.38% | 3.97% | 4.04% | 3.14% | 3.14% | 4.08% | 3.48% | 3.07% | 4.08% | 3.92% | 2.95% |
| Acquisitions | -991.06M | -237.31M | 0 | -48.01M | -49.31M | 0 | -1.09B | 0 | 0 | -8.57M | -3.19M | -43.95M | -6.38M | -5.04M | -47.73M |
| Investments | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Investing | 29.01M | 2.39M | 28.15M | 446K | -441K | 883K | 6.53M | 868K | 11.26M | -48.07M | -888K | -62K | 8.6M | 78K | 41.76M |
| Cash from Financing | 156.32M | -157.73M | -284.34M | -296.28M | -251.07M | -354.58M | 1.01B | -117.66M | -94.95M | -42.83M | -84.05M | 12.06M | -17.71M | -31.34M | -21.23M |
| Debt Issued (Net) | 303.23M | -37.38M | -26.88M | 358.48M | 88.1M | -328.49M | 836.73M | -87.32M | -72.92M | -29.03M | -68.46M | -63.43M | 91.86M | -30.02M | -4.07M |
| Equity Issued (Net) | -85.11M | -69.92M | -207.31M | -575.03M | -292M | 7.55M | 293.65M | 0 | -7.95M | 0 | 0 | 79.13M | -5.49M | -3.28M | -4.24M |
| Dividends Paid | -56.12M | -49.74M | -43.99M | -39.61M | -37.02M | -30.68M | -92.13M | -26.15M | -18.48M | -16.82M | -16.24M | -4.8M | -112.75M | -6.16M | -4.93M |
| Share Repurchases | -91.96M | -69.92M | -207.31M | -575.03M | -292M | 0 | 0 | 0 | -7.95M | 0 | 0 | -3K | -5.49M | -3.28M | -4.24M |
| Other Financing | -5.68M | -684K | -6.16M | -40.12M | -10.15M | -2.96M | -26.68M | -4.18M | 4.39M | -3.79M | 1.74M | -6.04M | -2.42M | 8.12M | -7.99M |
| Net Change in Cash | -235.3M | -26.58M | 278.72M | 197M | -174.88M | 20.78M | 165.34M | -8.7M | 11.14M | -105K | 869K | -308K | 2.57M | -721K | -69K |
| Free Cash Flow | 569.29M | 368.55M | 534.12M | 540.9M | 125.81M | 373.46M | 238.51M | 108.27M | 95.41M | 52.94M | 89.87M | 32.47M | 18.52M | 35.52M | 27.13M |
| FCF Margin % | 18.66% | 12.69% | 18.58% | 17.61% | 4.54% | 18.84% | 14.25% | 7.82% | 7.17% | 4.21% | 6.97% | 2.76% | 1.73% | 3.49% | 2.68% |
| FCF Growth % | 54.47% | -31% | -1.25% | 329.95% | -66.31% | 56.58% | 120.3% | 13.47% | 80.21% | -41.09% | 176.76% | 75.3% | -47.85% | 30.9% | - |
| FCF per Share | 7.25 | 4.71 | 6.76 | 6.49 | 1.73 | 5.22 | 3.74 | 1.88 | 1.69 | 0.95 | 1.46 | 0.62 | 0.33 | 0.65 | 0.49 |
| FCF Conversion (FCF/Net Income) | 1.92x | 1.29x | 1.41x | 1.40x | 1.01x | 2.02x | -1.59x | 1.95x | 2.21x | 3.16x | 6.53x | 2.61x | 5.58x | 3.65x | 1.32x |
| Interest Paid | 87.03M | 89.48M | 86.26M | 60.46M | 32.84M | 37.61M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Taxes Paid | 113.35M | 142.15M | 161.15M | 166.96M | 106.36M | 97.64M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Cyclical working capital volatility
As reported in recent financial statements, the relationship between net income and operating cash flow is highly inconsistent, with the OCF/NI ratio swinging from a low of 0.19 in 2024Q4 to a peak of 2.88 in 2026Q3, indicating significant quarterly fluctuations in cash conversion quality.
The wide variance in the OCF/NI ratio suggests that reported net income is frequently decoupled from actual cash generation, likely due to the timing of inventory builds and accounts receivable cycles. Investors should monitor whether these swings are purely seasonal or if they reflect a structural difficulty in converting accounting profits into liquid cash resources.
Based on the company's reported figures, free cash flow margins have demonstrated extreme volatility, ranging from a negative 4.6% in 2024Q4 to a robust 28.3% in 2026Q3, reflecting a lack of consistent cash flow generation relative to the firm's top-line revenue performance.
This erratic FCF trajectory implies that the business remains highly sensitive to the timing of capital expenditures and working capital requirements. The inability to maintain a stable FCF margin suggests that the company's cash flow profile is currently more reflective of project-based construction cycles than a steady-state industrial operation.
According to quarterly cash flow data, working capital changes have been a major source of volatility, with a significant outflow of $105.1 million in 2026Q4 contrasting sharply with the $104.8 million inflow observed in 2026Q3, highlighting the impact of inventory and receivable management on liquidity.
The dramatic shifts in working capital suggest that the company is frequently forced to tie up cash in inventory or extend terms to distributors to maintain market share. This pattern warrants further investigation into whether these swings are a byproduct of supply chain management or a response to softening demand in specific end-markets.
As evidenced by recent filings, the company has pursued an aggressive capital deployment strategy, including a $972.5 million acquisition in 2026Q4 and consistent share repurchases, which have collectively pressured the firm's cash position during periods of declining net income and inconsistent operating cash flow generation.
The decision to prioritize large-scale acquisitions and buybacks while operating cash flow remains volatile may indicate management's confidence in long-term growth, yet it simultaneously reduces the company's financial flexibility. Investors should monitor whether this capital allocation strategy remains sustainable if the current cyclical headwinds in the construction sector persist.
Quick answers to the most common questions about buying WMS stock.
Advanced Drainage Systems, Inc. (WMS) generated $819.1M in net cash from operating activities in 2026. This reflects the cash generated directly from core business operations.
Advanced Drainage Systems, Inc. (WMS) generated $569.3M in free cash flow in 2026. Free cash flow is the cash left over after capital expenditures, which can be used to pay dividends, repurchase shares, or pay down debt.
Advanced Drainage Systems, Inc. (WMS) spent $249.8M on capital expenditures in 2026. CapEx represents the cash invested in physical assets like property, plant, and equipment to maintain or grow the business.
In 2026, Advanced Drainage Systems, Inc. (WMS) returned $56.1M to shareholders via cash dividends and spent $92.0M on share repurchases. This shows the company's commitment to returning capital to its equity investors.