Advanced Drainage Systems
WMS
$126.05
+0.30%
Advanced Drainage Systems (ADS) designs, manufactures, and markets thermoplastic corrugated pipe and engineered water-management solutions for stormwater and onsite wastewater applications, serving residential, non-residential, infrastructure, and agricultural end markets through its Stormwater and Wastewater segments. The company is the dominant North American player in high-density polyethylene (HDPE) drainage pipe, a position reinforced by a vertically integrated manufacturing and recycling network that competitors have struggled to replicate, and it has expanded its moat through acquisitions into complementary water-quality, filtration, and stormwater-detention products. The current investor debate centers on whether ADS can sustain its long-run infrastructure-driven growth story after a sharp deceleration in quarterly profitability — most recently, fiscal Q4 2026 net income fell to $32.9 million from $77.2 million a year earlier, and gross margin compressed to 32.4% from 36.7% — even as revenue grew 9.9% year over year. Management's aggressive capital deployment, including roughly $973 million of acquisitions in the latest quarter and a $315 million debt repayment, has raised questions about balance-sheet strain and near-term free cash flow, while sell-side analysts remain overwhelmingly constructive on the multi-year replacement and infrastructure tailwinds.…
WMS
Advanced Drainage Systems
$126.05
Related headlines
Investment Opinion: Should I buy WMS Today?
Rating: Hold. The core thesis is that ADS is a high-quality market leader with a durable moat and strong long-term infrastructure tailwinds, but near-term earnings deterioration and negative free cash flow create too much uncertainty to justify a Buy at current levels. The analyst consensus is strong buy with an average target of $183.92, implying 45.9% upside, but the market is clearly pricing in a more cautious view, and the stock is in a confirmed downtrend just above its 52-week low.
Supporting evidence for a Hold: (1) Valuation is mixed — the trailing PE of 25.02x is below the 5-year average and well off the March 2026 spike of 81.6x, but the forward PE of 16.99x is only attractive if the earnings recovery is delivered. (2) Revenue grew 9.9% year over year in Q4 2026, but the trailing four-quarter run-rate of $3.05 billion implies mid-single-digit growth, well below the consensus fiscal 2027 estimate of $3.99 billion. (3) Profitability is deteriorating — gross margin fell to 32.4% from 36.7%, and net margin collapsed to 4.9% from 12.5%. (4) Free cash flow turned negative at -$13.1 million, and the cash balance dropped to $234.0 million after $973 million of acquisitions. (5) The implied upside to the average analyst target is 45.9%, but even the low target of $165.00 implies 30.9% upside, suggesting the sell-side is not yet reflecting the Q4 margin miss.
The biggest risks that could invalidate the Hold rating are: (1) a continued decline in gross margin below 30%, which would pressure the premium EV/EBITDA multiple of 14.03x; (2) a failure to integrate recent acquisitions and realize synergies, leading to further cash burn; and (3) a broader market downturn given the beta of 1.279. The rating would upgrade to Buy if gross margin stabilizes above 35% and free cash flow turns positive, or if the stock breaks above the $135–$140 resistance zone on strong volume. It would downgrade to Sell if revenue growth decelerates below 5% or if the stock breaks decisively below the 52-week low of $124.75. On valuation, the stock appears fairly valued to slightly undervalued relative to its own history, but at a premium to peers on EV/EBITDA, leaving it vulnerable if margins do not recover.
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WMS 12-Month Price Forecast
ADS presents a classic value-versus-momentum dilemma. The company's dominant market position, strong returns on capital (ROE 22.1%, ROA 11.0%), and multi-year infrastructure tailwinds support a constructive long-term view, and the forward PE of 16.99x is attractive if the earnings recovery is delivered. However, the near-term evidence is deteriorating: net margin collapsed to 4.9%, free cash flow turned negative, and the stock is in a confirmed downtrend with relative strength of -27.87% versus SPY over one year. The analyst consensus is overwhelmingly bullish, but estimates have not yet been revised to reflect the Q4 margin miss, creating a risk of downward revisions. I would upgrade to bullish if gross margin stabilizes above 35% and free cash flow turns positive, or if the stock breaks above $140 on strong volume. I would downgrade to bearish if the stock breaks below $124.75 or if revenue growth decelerates below 5%.
Wall Street consensus
Most Wall Street analysts maintain a constructive view on Advanced Drainage Systems's 12-month outlook, with a consensus price target around $183.92 and implied upside of +45.9% versus the current price.
Average Target
$183.92
0 analysts
Implied Upside
+45.9%
vs. current price
Analyst Count
—
covering this stock
Price Range
$165 - $207
Analyst target range
Coverage is robust with 12 analysts, and sentiment is overwhelmingly bullish: the consensus recommendation is "strong_buy" with a recommendation mean of 1.17 (where 1.0 is a strong buy), and the average target price of $183.92 implies 45.9% upside from the current $126.05. The Buy/Hold/Sell distribution is heavily skewed to Buy, with recent actions including Stephens & Co. upgrading to Overweight from Equal Weight on May 27, 2026, and Barclays, RBC Capital, Oppenheimer, KeyBanc, and UBS all maintaining Overweight/Outperform/Buy ratings through mid-2026. This is a rare setup where the sell-side is aggressively constructive while the stock trades near 52-week lows, suggesting either a significant mispricing opportunity or a disconnect between analyst models and market reality.\n\nThe target range is wide, from a low of $165.00 to a high of $207.00, a spread of $42.00 or 25.5% of the low target, which signals meaningful disagreement about the pace of recovery. The high target of $207.00 implies 64.2% upside and likely assumes successful integration of recent acquisitions, margin recovery back toward the 40% gross-margin level, and multiple expansion as earnings normalize; the low target of $165.00 still implies 30.9% upside and probably prices in a slower recovery with persistent margin pressure but no recession. Notably, even the most bearish analyst target sits 30.9% above the current price, which is an unusually strong signal — there is no sell-rated analyst and no target below $165, implying the market is pricing in a scenario more dire than any analyst currently models. The key risk to this consensus is that estimates have not yet been revised downward to reflect the Q4 margin miss; if fiscal 2027 EPS estimates of $8.88 prove too high, the targets will likely follow the stock lower rather than the stock following the targets higher.
Bulls vs Bears: WMS Investment Factors
The bear case currently has stronger near-term evidence: profitability is collapsing (net margin down to 4.9% from 12.5%), free cash flow has turned negative, and the stock is in a confirmed downtrend trading just above its 52-week low. However, the bull case rests on a powerful structural moat, a pristine balance sheet relative to peers, and an analyst consensus that is overwhelmingly constructive with a $183.92 average target. The single most important tension is whether the Q4 margin compression is a temporary blip driven by acquisition integration and seasonality, or the start of a sustained deterioration that will force analysts to slash estimates. If margins recover toward the 40% gross-margin level seen in Q2 2026, the forward PE of 16.99x makes the stock deeply undervalued; if they do not, the stock is a value trap.
Bullish
- Dominant HDPE Pipe Moat: ADS controls the North American thermoplastic corrugated pipe market through a vertically integrated manufacturing and recycling network that competitors have struggled to replicate. This structural advantage supports a trailing gross margin of 36.3% and operating margin of 22.5%, well above typical building-products peers.
- Analyst Consensus Strong Buy: All 12 covering analysts rate the stock a strong buy (recommendation mean 1.17), with an average target price of $183.92 implying 45.9% upside from $126.05. Even the lowest target of $165.00 sits 30.9% above the current price, signaling that no analyst models a scenario as bearish as the market is currently pricing.
- Forward PE Compression Opportunity: The trailing PE of 25.02x drops to a forward PE of 16.99x based on consensus EPS of $8.88, implying the market expects roughly 47% EPS growth over the next twelve months. If that recovery materializes, the stock is trading at a meaningful discount to its own historical average and to the broader Industrials sector.
- Infrastructure Spending Tailwind: ADS is a direct beneficiary of multi-year federal and state infrastructure spending on stormwater management and water quality. Consensus fiscal 2027 revenue of $3.99 billion assumes a reacceleration from the trailing four-quarter run-rate of roughly $3.05 billion, supported by non-residential and infrastructure end markets.
Bearish
- Sharply Deteriorating Profitability: Fiscal Q4 2026 net income collapsed 57.4% year over year to $32.9 million from $77.2 million, with net margin compressing to 4.9% from 12.5%. Gross margin fell to 32.4% from 36.7% a year earlier and has declined sequentially from 40.0% in Q2 to 35.4% in Q3 to 32.4% in Q4, a clear negative trend.
- Negative Free Cash Flow and Cash Burn: Free cash flow turned negative at -$13.1 million in the latest quarter, a dramatic swing from +$183.6 million in the prior quarter, driven by $53.0 million of capex and a $105.1 million working-capital drain. The $973 million acquisition outlay and $315 million debt repayment pushed net change in cash to -$776.9 million, leaving only $234.0 million on the balance sheet.
- Severe Technical Breakdown: WMS is down 12.86% over the past year and 15.76% year to date, massively underperforming the S&P 500's +15.01% and +11.70% returns. At $126.05, the stock sits just 0.9% above its 52-week low of $124.75 and has lost 13.91% in the past month alone, with relative strength versus SPY at -27.87% over one year.
- Leverage and Liquidity Concerns: Debt-to-equity stands at 0.93 and total-debt-to-capitalization at 0.481, indicating meaningful leverage. With interest expense jumping to $25.1 million in Q4 and free cash flow turning negative, the thinner $234.0 million cash buffer raises questions about balance-sheet flexibility if FCF does not recover quickly.
WMS Technical Analysis
WMS is in a sustained downtrend, with the shares down 12.86% over the past year and 15.76% year to date, a stark underperformance versus the S&P 500's +15.01% 1-year and +11.70% YTD returns. At $126.05, the stock sits just 0.9% above its 52-week low of $124.75 and only 70.3% of the way up its 52-week range of $124.75–$179.32, meaning it is trading in the bottom third of its annual band and pressing against the floor rather than the ceiling. This positioning signals persistent distribution and a lack of buyer conviction — a falling-knife profile rather than a value opportunity until a base forms, particularly with the 52-week high now 42.3% above the current price.\n\nShort-term momentum is decisively negative and deteriorating: the stock is down 13.91% over the past month and 14.32% over three months, with the 1-month decline actually steeper than the 3-month decline, indicating acceleration to the downside rather than stabilization. Relative strength is deeply negative across every window — -12.95% versus SPY over 1 month, -16.32% over 3 months, and -27.87% over 1 year — confirming that this is idiosyncratic weakness, not merely sector or market beta. The most recent sessions show the stock grinding lower from $135.76 on September 4 to $126.05 on September 18, a 7.2% slide in just ten trading days, with volume of roughly 2.1 million shares suggesting steady selling pressure rather than capitulation.\n\nKey technical levels are now clearly defined: immediate support sits at the 52-week low of $124.75, and a decisive breakdown below that level would likely trigger momentum-driven selling and open the door to a new leg lower, while resistance is anchored at the 52-week high of $179.32, with intermediate resistance around the $135–$140 zone where the stock repeatedly failed in August and early September. The beta of 1.279 means WMS is roughly 28% more volatile than the broader market, so a 10% SPY drawdown could translate into a roughly 13% move in WMS, which matters materially for position sizing. The maximum drawdown of -28.54% over the period underscores that this name can inflict severe losses in adverse conditions, and with the stock already down 28.5% from its peak, risk management should prioritize capital preservation over bottom-fishing until price action confirms a reversal.
Beta
1.28
1.28x market volatility
Max Drawdown
-28.5%
Largest decline past year
52-Week Range
$125-$179
Price range past year
Annual Return
-12.9%
Cumulative gain past year
| Period | WMS Return | S&P 500 |
|---|---|---|
| 1m | -13.9% | -0.5% |
| 3m | -14.3% | +2.3% |
| 6m | -4.6% | +16.6% |
| 1y | -12.9% | +14.8% |
| ytd | -15.8% | +11.7% |
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WMS Fundamental Analysis
Revenue remains on a growth trajectory but is decelerating in quality: fiscal Q4 2026 revenue of $676.8 million grew 9.9% year over year from $615.8 million, yet this was the lowest quarterly revenue of the trailing four quarters, well below the $850.4 million posted in fiscal Q2 2026 and the $829.9 million in fiscal Q1 2026. The sequential decline reflects normal seasonality in construction, but the year-over-year comparison is flattered by an easy prior-year base, and the trailing four-quarter revenue run-rate of roughly $3.05 billion implies mid-single-digit growth at best. With consensus fiscal 2027 revenue estimated at $3.99 billion, the market is pricing in a meaningful reacceleration that will require infrastructure spending and non-residential construction to cooperate — a macro-dependent thesis that carries execution risk.\n\nProfitability deteriorated sharply in the most recent quarter: net income of $32.9 million collapsed 57.4% from $77.2 million in the year-ago quarter, and net margin compressed to just 4.9% from 12.5%, while gross margin fell to 32.4% from 36.7%. The trailing-twelve-month picture is more resilient — net margin of 13.98%, operating margin of 22.51%, and gross margin of 36.31% — but the quarterly trend is unmistakably negative, with gross margin declining sequentially from 40.0% in fiscal Q2 2026 to 35.4% in Q3 to 32.4% in Q4. The Q4 compression was exacerbated by $88.6 million of net other expenses and a jump in interest expense to $25.1 million, and if margin pressure persists, the company's premium valuation will face increasing scrutiny.\n\nThe balance sheet is levered but manageable: debt-to-equity stands at 0.93, the current ratio is a healthy 2.42, and interest coverage of 5.14x provides adequate cushion, though the debt ratio of 0.398 and total-debt-to-capitalization of 0.481 indicate meaningful leverage. Free cash flow turned negative in the latest quarter at -$13.1 million, a dramatic swing from +$183.6 million in the prior quarter, driven by $53.0 million of capex and a $105.1 million working-capital drain, while the trailing-twelve-month FCF of $569.3 million still yields a respectable 5.3% FCF yield on the $10.67 billion market cap. ROE of 22.07% and ROA of 10.97% demonstrate that the underlying business generates strong returns on capital, but the $973 million acquisition outlay and $315 million debt repayment in Q4 consumed cash and pushed net change in cash to -$776.9 million, leaving $234.0 million on the balance sheet — a thinner liquidity buffer that bears watching if FCF does not recover.
Quarterly Revenue
$676761000.0B
2026-03
Revenue YoY Growth
+9.9%
YoY Comparison
Gross Margin
32.4%
Latest Quarter
Free Cash Flow
$569288000.0B
Last 12 Months
Revenue & Net Income Trends (2 Years)
Revenue Breakdown
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Valuation Analysis: Is WMS Overvalued?
Because WMS is solidly profitable — trailing net income is positive and the trailing PE of 25.02x is meaningful — the PE ratio is the appropriate primary metric, and the gap between the trailing 25.02x and forward 16.99x is striking: it implies the market expects EPS to grow roughly 47% over the next twelve months, consistent with consensus estimated EPS of $8.88 versus the trailing figure. That forward multiple compression is the crux of the bull case, but it also means the stock is priced for a sharp earnings recovery that has not yet materialized in reported results, creating asymmetric downside if estimates prove optimistic. The PEG ratio of -4.41 is not meaningful given the negative earnings-growth denominator, and the PS ratio of 3.50x and EV/Sales of 3.45x provide cleaner cross-checks on the revenue-based valuation.\n\nRelative to the Industrials/Construction sector, WMS screens as a premium asset: its PS ratio of 3.50x and EV/EBITDA of 14.03x sit above typical building-products peers that often trade in the 8–11x EV/EBITDA range, reflecting the company's superior margins (36.3% gross, 22.5% operating) and dominant market position. The PB ratio of 5.52x is elevated for a manufacturer and reflects the asset-light, high-return nature of the pipe business as well as accumulated goodwill from acquisitions. The premium is defensible on quality grounds — ROE of 22.1% and ROA of 11.0% are well above sector norms — but the 14.03x EV/EBITDA leaves little room for error if margins continue compressing, and the dividend yield of just 0.53% with a 13.2% payout ratio signals that capital return is not the primary support for the valuation.\n\nHistorically, WMS has traded at a wide range of multiples: the PE ratio has ranged from roughly 10.0x (June 2022) to 81.6x (March 2026), and the PS ratio from 8.19x (June 2022) to 20.23x (March 2024), with the current PS of 3.50x and PE of 25.02x sitting in the lower-middle portion of those bands. The current PE of 25.02x is below the 5-year average and well off the March 2026 spike of 81.6x, which suggests the market has already de-rated the stock substantially and is no longer pricing in peak-cycle optimism. However, the PB ratio of 5.52x remains near the middle of its historical range (5.06x–10.48x), and the forward PE of 16.99x is only attractive if the earnings recovery is delivered — near historical lows on trailing earnings can signal either genuine value or impending fundamental deterioration, and the recent margin collapse tilts the evidence toward caution.
PE
25.0x
Latest Quarter
vs. Historical
Mid-Range
5-Year PE Range 10x~46x
vs. Industry Avg
N/A
Industry PE ~N/A*
EV/EBITDA
14.0x
Enterprise Value Multiple
Investment Risk Disclosure
Financial and operational risks are mounting. The most immediate concern is the sharp margin deterioration: gross margin fell to 32.4% in fiscal Q4 2026 from 36.7% a year earlier, and net margin collapsed to 4.9% from 12.5%. Free cash flow turned negative at -$13.1 million, a $196.7 million swing from the prior quarter, driven by a $105.1 million working-capital drain and $53.0 million of capex. The balance sheet carries debt-to-equity of 0.93 and total-debt-to-capitalization of 0.481, with interest expense rising to $25.1 million. The $973 million acquisition outlay and $315 million debt repayment consumed cash, leaving only $234.0 million on the balance sheet — a thin liquidity buffer if FCF does not recover. Revenue concentration in the Stormwater segment and cyclical construction end markets adds further operational risk.
Market and competitive risks are significant. The stock trades at a premium valuation relative to building-products peers, with EV/EBITDA of 14.03x versus the typical 8–11x range for the sector, leaving little room for error if margins continue to compress. The beta of 1.279 means WMS is roughly 28% more volatile than the broader market, so a 10% SPY drawdown could translate into a roughly 13% move in WMS. The stock has already underperformed the S&P 500 by 27.87% over the past year, and relative strength is negative across every window. Competitive disruption from alternative materials or larger building-products consolidators could pressure pricing, while regulatory changes to stormwater management standards could alter demand dynamics. Recent news flow has been focused on other industrial names, offering no positive catalyst for WMS.
In a worst-case scenario, a continued margin collapse combined with a broader market downturn could drive the stock below its 52-week low of $124.75. If fiscal 2027 EPS estimates of $8.88 prove too high and are revised down toward the trailing run-rate, the forward PE would expand dramatically, forcing multiple compression. The maximum drawdown over the past period was -28.54%, and the stock is already down 28.5% from its 52-week high of $179.32. From the current price of $126.05, a drop to the 52-week low of $124.75 represents a modest -1.0% decline, but a more severe scenario where the stock breaks below that level and tests the analyst low target of $165.00 is actually upside — the real downside would be a new leg lower toward $100–$110, implying a -13% to -21% loss. The most damaging chain of events would be a Q1 2027 earnings miss, downward estimate revisions, and a broader market correction, which could push the stock to $100 or lower, a -21% decline from current levels.
FAQ
The most severe risk is continued margin deterioration: gross margin fell to 32.4% in Q4 2026 from 36.7% a year earlier, and net margin collapsed to 4.9% from 12.5%. If this trend continues, the premium valuation will be difficult to justify. Second, free cash flow turned negative at -$13.1 million, and the cash balance dropped to $234.0 million after $973 million of acquisitions, raising liquidity concerns. Third, the stock is in a confirmed downtrend with a beta of 1.279, meaning it is 28% more volatile than the market, and it has underperformed the S&P 500 by 27.87% over the past year. Fourth, analyst estimates may be too high — the consensus EPS of $8.88 for fiscal 2027 assumes a recovery that has not yet materialized, and downward revisions could pressure the stock further.
The 12-month forecast has three scenarios. The base case (50% probability) targets $140–$165, assuming gradual margin recovery and mid-single-digit revenue growth. The bull case (25% probability) targets $183.92–$207.00, driven by successful acquisition integration, margin recovery above 35%, and infrastructure spending acceleration. The bear case (25% probability) targets $100–$124.75, assuming sustained margin deterioration, negative free cash flow, and analyst estimate cuts. The most likely scenario is the base case, where the stock stabilizes above its 52-week low but struggles to break through resistance until there is clearer evidence of a sustainable margin recovery. The key assumption is that gross margin stabilizes in the 33–35% range.
WMS appears fairly valued to slightly undervalued relative to its own history but at a premium to sector peers. The trailing PE of 25.02x is below the 5-year average and well off the March 2026 spike of 81.6x, while the forward PE of 16.99x is near historical lows. However, the EV/EBITDA of 14.03x is above the typical 8–11x range for building-products peers, reflecting the company's superior margins and market position. The PS ratio of 3.50x is in the lower-middle portion of its historical range (8.19x–20.23x). The market is pricing in a sharp earnings recovery (47% EPS growth implied by the gap between trailing and forward PE), which may be optimistic given the recent margin collapse. If the recovery is delivered, the stock is undervalued; if not, it is overvalued.
WMS is a nuanced buy candidate. On the positive side, the stock trades at a forward PE of 16.99x, well below its trailing PE of 25.02x, and the analyst consensus is strong buy with an average target of $183.92, implying 45.9% upside. The company has a dominant market position in HDPE pipe, strong returns on capital (ROE 22.1%), and a healthy current ratio of 2.42. However, the near-term risks are substantial: net margin collapsed to 4.9% in Q4 2026, free cash flow turned negative, and the stock is down 12.86% over the past year, trading just 0.9% above its 52-week low. For long-term investors with a 2–3 year horizon who believe in the infrastructure spending thesis, the risk/reward is attractive. For short-term traders, the downtrend and negative momentum make it a risky entry.
WMS is better suited for long-term investment (minimum 2–3 years) than short-term trading. The company is in a turnaround phase with negative near-term momentum (down 13.91% in the past month) and high volatility (beta 1.279), making it a poor candidate for short-term trading. The dividend yield is only 0.53% with a 13.2% payout ratio, so income is not a reason to hold. However, the long-term story is compelling: a dominant market position, multi-year infrastructure tailwinds, and a forward PE of 16.99x that is attractive if earnings recover. Long-term investors should be prepared for further volatility and should monitor gross margin trends and free cash flow generation as key indicators of whether the turnaround is on track. A suggested minimum holding period is 2–3 years to allow the infrastructure spending cycle and acquisition integration to play out.