The BalancedInvestor Club

Pollution Treatment Controls Industry Analysis

21 companies analyzed • Returns from -170.9% to +208.7%

Company List (21 Results)

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Industry Performance

(21/21 companies)
2025-07-22 → 2026-07-20
Weighted Avg
-11.1%
Best
+208.7%
Worst
-170.9%
Returns Distribution
Top 5
1. SCWO+208.7%2. CLIR+173.4%3. BCHT+97.8%4. CECO+89.9%5. TOMZ+67.0%
Bottom 5
1. ZONE-170.9%2. LIQT-139.8%3. PCTTW-121.6%4. DEVS-109.0%5. ARQ-98.0%

SCWO

+208.7%

374Water Inc. Common Stock

CLIR

+173.4%

ClearSign Combustion Corporation

BCHT

+97.8%

Birchtech Corp

CECO

+89.9%

CECO Environmental Corp.

TOMZ

+67.0%

TOMI Environmental Solutions Inc

ZWS

+26.2%

Zurn Elkay Water Solutions Corporation

CLWT

+25.2%

Euro Tech Holdings Company Ltd

ADUR

+21.3%

Aduro Clean Technologies Inc

FSS

+4.6%

Federal Signal Corporation

RAINW

-0.8%

Rain Enhancement Technologies Holdco, Inc. Warrants

VLTO

-9.6%

Veralto Corporation

CHNR

-9.6%

China Natural Resources Inc

ERII

-47.8%

Energy Recovery Inc

FTEK

-59.8%

Fuel Tech Inc

PCTTU

-73.1%

Purecycle Technologies Holdings Corp Unit

PCT

-97.5%

Purecycle Technologies Holdings Corp

ARQ

-98.0%

Arq Inc

DEVS

-109.0%

DevvStream Corp. Common Stock

PCTTW

-121.6%

PureCycle Technologies Inc

LIQT

-139.8%

LiqTech International Inc

1–20 of 21
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Methodology

The Weighted Average return (-11.1%) is calculated using market capitalization as weights. This gives larger companies more influence on the average, providing a more market-representative view.

19 companies with market cap data included: SCWO, CLIR, BCHT, CECO, TOMZ, ZWS, CLWT, ADUR, FSS, VLTO and 9 more...

We're educators, not advisors. We don't make buy or sell recommendations under any circumstance. All content is for educational purposes. Past performance doesn't guarantee future results. Your decisions are your own. Disclaimer