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
ICLR weekly returns
ICON plc has averaged 0.39% per week, positive in 53% of weeks. Week-by-week returns for ICON plc (ICLR) below, through August 13, 2026 — the table lists the most recent weeks; the bar chart plots the last 2 years.
Average week
+0.4%
1474 weeks
Best week
+39.8%
Jun 18, 1999
Worst week
-44.2%
Apr 1, 1999
Positive weeks
53%
of all weeks
ICON plc weekly returns#
| Week ending | Path | Total return |
|---|---|---|
| Aug 13, 2026 | +2.0% | |
| Aug 7, 2026 | +0.6% | |
| Jul 31, 2026 | -1.3% | |
| Jul 24, 2026 | -2.5% | |
| Jul 17, 2026 | +1.4% | |
| Jul 10, 2026 | -3.1% | |
| Jul 2, 2026 | +1.9% | |
| Jun 26, 2026 | +16.3% | |
| Jun 18, 2026 | -0.1% | |
| Jun 12, 2026 | -2.2% | |
| Jun 5, 2026 | +9.8% | |
| May 29, 2026 | +16.5% |
Weekly total return (since Aug 23, 2024)
-20%+0%+20%
20252026
Methodology#
Weekly returns are total returns (dividends reinvested), computed from ICLR's split- and dividend-adjusted weekly (ISO week) closes. The table shows the most recent 260 weeks and the bar chart the most recent 104. 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 weekly return?
- ICON plc (ICLR) has averaged about 0.39% per week, positive in roughly 53% of weeks. The best week was Jun 18, 1999 (+39.8%) and the worst was Apr 1, 1999 (-44.2%).