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CLH
Clean Harbors Inc.Stock · Industrials
$320.44+$3.79 (+1.20%)as of market close, Aug 13, 2026
☾ After hours:$320.24+0.00%3:59 PM ET
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CLH monthly returns

Clean Harbors Inc. has averaged 2.29% per month, positive in 54% of months. Month-by-month returns for Clean Harbors Inc. (CLH) below, through August 13, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.

Average month
+2.3%
428 months
Best month
+147.6%
Nov 2003
Worst month
-50.6%
Aug 2003
Positive months
54%
of all months

Clean Harbors Inc. monthly returns#

Clean Harbors Inc. total return by month
MonthTotal return
Aug 2026
+2.4%
Jul 2026
+4.7%
Jun 2026
+6.3%
May 2026
-10.1%
Apr 2026
+9.1%
Mar 2026
-2.2%
Feb 2026
+12.8%
Jan 2026
+10.8%
Dec 2025
+3.0%
Nov 2025
+8.1%
Oct 2025
-9.3%
Sep 2025
-4.1%

Monthly total return (since Sep 2021)

-20%-10%+0%+10%+20%
20222023202420252026

Methodology#

Monthly returns are total returns (dividends reinvested), computed from CLH's split- and dividend-adjusted month-end closes. The table shows the most recent 120 months and the bar chart the most recent 60. See the year-by-year returns for the annual view. Past performance does not predict future returns; not investment advice.

See also: S&P 500 · Nasdaq-100 · Dow Jones · Russell 2000 · US Bond Market · Gold · Silver · Bitcoin · Ethereum

FAQ#

What is Clean Harbors Inc.'s average monthly return?
Clean Harbors Inc. (CLH) has averaged about 2.29% per month, positive in roughly 54% of months. The best month was Nov 2003 (+147.6%) and the worst was Aug 2003 (-50.6%).