Advanced Drainage Systems To Acquire StormTrap For $530 Mln
Advanced Drainage Systems (WMS) agreed to acquire StormTrap Investments for $530 million, or $450 million adjusted for tax benefits. StormTrap generated $165 million in revenue and $40 million in adjusted EBITDA in the 12 months ended July 2026. ADS will fund the deal with cash and credit. The acquisition is expected to be EPS-accretive in the first year and expand ADS' stormwater storage offerings and geographic reach.
How this was made
The 30-second read
Why it matters
The $530 million transaction is expected to be accretive to EPS, broaden product offerings, and increase market share in regulated stormwater projects.
Market read
The deal is material for WMS and could drive short‑term upside as investors price in the accretion and growth potential.
What to watch
Potential regulatory approvals for the acquisition and the ability to realize projected cost synergies.
Background
Advanced Drainage Systems (WMS) provides water‑management solutions and is expanding its stormwater storage portfolio through the acquisition of StormTrap Investments.
Ticker impact
Advanced Drainage Systems announced a $530 million acquisition of StormTrap, a material deal that is accretive to EPS and expands its product line.
upward pressure as the market prices in the accretive acquisition
Deal size and synergies are material; the company funded it with cash and credit, and shares rose 0.32% after the announcement.
Market effects
Strengthens the water‑management sector by consolidating stormwater storage capabilities.
Expands ADS's geographic footprint in the U.S., potentially boosting regional demand exposure.
Adds to broader infrastructure investment trends, but impact is primarily domestic.
Counterpoint
If integration costs exceed expectations, the deal could pressure margins and dilute earnings.
Key entities
- companyAdvanced Drainage Systems, Inc.
US‑listed water‑management firm acquiring StormTrap.
- companyStormTrap Investments LLC
Provider of engineered stormwater storage solutions being acquired.

