The BalancedInvestor Club

Pollution Treatment Controls Industry Analysis

21 companies analyzed • Returns from -306.6% to +211.2%

Company List (21 Results)

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Industry Performance

(21/21 companies)
2025-09-02 → 2026-08-31
Weighted Avg
-11.9%
Best
+211.2%
Worst
-306.6%
Returns Distribution
Top 5
1. SCWO+211.2%2. CLIR+199.3%3. TOMZ+69.9%4. BCHT+64.8%5. CECO+44.7%
Bottom 5
1. ZONE-306.6%2. DEVS-268.4%3. ARQ-123.7%4. LIQT-118.3%5. PCT-74.1%

SCWO

+211.2%

374Water Inc. Common Stock

CLIR

+199.3%

ClearSign Combustion Corporation

TOMZ

+69.9%

TOMI Environmental Solutions Inc

BCHT

+64.8%

Birchtech Corp

CECO

+44.7%

CECO Environmental Corp.

ADUR

+20.4%

Aduro Clean Technologies Inc

CLWT

+18.5%

Euro Tech Holdings Company Ltd

CHNR

+6.5%

China Natural Resources Inc

ZWS

+5.8%

Zurn Elkay Water Solutions Corporation

FSS

-4.5%

Federal Signal Corporation

VLTO

-6.6%

Veralto Corporation

RAINW

-20.9%

Rain Enhancement Technologies Holdco, Inc. Warrants

PCTTW

-52.9%

PureCycle Technologies Inc

PCTTU

-52.9%

Purecycle Technologies Holdings Corp Unit

ERII

-62.0%

Energy Recovery Inc

FTEK

-71.1%

Fuel Tech Inc

PCT

-74.1%

Purecycle Technologies Holdings Corp

LIQT

-118.3%

LiqTech International Inc

ARQ

-123.7%

Arq Inc

DEVS

-268.4%

DevvStream Corp. Common Stock

1–20 of 21
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Methodology

The Weighted Average return (-11.9%) 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, TOMZ, BCHT, CECO, ADUR, CLWT, CHNR, ZWS, FSS 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