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ICLR
ICON plcStock · Health Care
$167.73+$0.56 (+0.34%)as of market close, Aug 13, 2026
☾ After hours:$167.48+0.00%3:59 PM ET
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ICLR monthly returns

ICON plc has averaged 1.52% per month, positive in 59% of months. Month-by-month returns for ICON plc (ICLR) below, through August 13, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.

Average month
+1.5%
332 months
Best month
+57.0%
Jun 1999
Worst month
-48.7%
Mar 1999
Positive months
59%
of all months

ICON plc monthly returns#

ICON plc total return by month
MonthTotal return
Aug 2026
+2.5%
Jul 2026
-5.8%
Jun 2026
+27.7%
May 2026
+15.0%
Apr 2026
+6.9%
Mar 2026
+2.3%
Feb 2026
-40.0%
Jan 2026
-1.1%
Dec 2025
-1.5%
Nov 2025
+7.7%
Oct 2025
-1.8%
Sep 2025
-1.7%

Monthly total return (since Sep 2021)

-40%-20%+0%+20%+40%
20222023202420252026

Methodology#

Monthly returns are total returns (dividends reinvested), computed from ICLR'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 ICON plc's average monthly return?
ICON plc (ICLR) has averaged about 1.52% per month, positive in roughly 59% of months. The best month was Jun 1999 (+57.0%) and the worst was Mar 1999 (-48.7%).