IDXX
IDEXX Laboratories Inc.Stock · HealthcareNasdaq-100 0.2% · S&P 500 Equal Weight 0.2% · Nasdaq Composite 0.10% · S&P 500 0.06% · Russell 1000 0.06% · Russell 3000 0.06% · US Stock Market 0.06% · MSCI World 0.05% · MSCI ACWI 0.05%$504.70-0.36%
as of market close, Sep 11, 2026
☾ AH — —
IDEXX Laboratories Inc. monthly returns
IDEXX Laboratories Inc. has averaged 2.01% per month, positive in 58% of months. Month-by-month returns for IDEXX Laboratories Inc. (IDXX) below, through September 11, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.
Average month
+2.0%
417 months
Best month
+96.3%
Feb 2000
Worst month
-62.4%
Mar 1997
Positive months
58%
of all months
IDEXX Laboratories Inc. monthly returns#
| Month | Path | Total return |
|---|---|---|
| Sep 2026 | -9.3% | |
| Aug 2026 | -0.4% | |
| Jul 2026 | +7.1% | |
| Jun 2026 | -7.4% | |
| May 2026 | +0.5% | |
| Apr 2026 | -0.2% | |
| Mar 2026 | -14.4% | |
| Feb 2026 | -2.0% | |
| Jan 2026 | -0.9% | |
| Dec 2025 | -10.1% | |
| Nov 2025 | +19.6% | |
| Oct 2025 | -1.5% | |
| Sep 2025 | -1.3% | |
| Aug 2025 | +21.1% | |
| Jul 2025 | -0.4% | |
| Jun 2025 | +4.5% | |
| May 2025 | +18.7% | |
| Apr 2025 | +3.0% | |
| Mar 2025 | -3.9% | |
| Feb 2025 | +3.6% | |
| Jan 2025 | +2.1% | |
| Dec 2024 | -2.0% | |
| Nov 2024 | +3.6% | |
| Oct 2024 | -19.5% | |
| Sep 2024 | +5.0% | |
| Aug 2024 | +1.1% | |
| Jul 2024 | -2.3% | |
| Jun 2024 | -2.0% | |
| May 2024 | +0.9% | |
| Apr 2024 | -8.7% | |
| Mar 2024 | -6.1% | |
| Feb 2024 | +11.7% | |
| Jan 2024 | -7.2% | |
| Dec 2023 | +19.2% | |
| Nov 2023 | +16.6% | |
| Oct 2023 | -8.6% | |
| Sep 2023 | -14.5% | |
| Aug 2023 | -7.8% | |
| Jul 2023 | +10.5% | |
| Jun 2023 | +8.1% | |
| May 2023 | -5.6% | |
| Apr 2023 | -1.6% | |
| Mar 2023 | +5.7% | |
| Feb 2023 | -1.5% | |
| Jan 2023 | +17.8% | |
| Dec 2022 | -4.2% | |
| Nov 2022 | +18.4% | |
| Oct 2022 | +10.4% | |
| Sep 2022 | -6.3% | |
| Aug 2022 | -12.9% | |
| Jul 2022 | +13.8% | |
| Jun 2022 | -10.4% | |
| May 2022 | -9.0% | |
| Apr 2022 | -21.3% | |
| Mar 2022 | +2.8% | |
| Feb 2022 | +4.9% | |
| Jan 2022 | -23.0% | |
| Dec 2021 | +8.3% | |
| Nov 2021 | -8.7% | |
| Oct 2021 | +7.1% | |
| Sep 2021 | -7.7% | |
| Aug 2021 | -0.7% | |
| Jul 2021 | +7.4% | |
| Jun 2021 | +13.2% | |
| May 2021 | +1.7% | |
| Apr 2021 | +12.2% | |
| Mar 2021 | -5.9% | |
| Feb 2021 | +8.7% | |
| Jan 2021 | -4.2% | |
| Dec 2020 | +8.4% | |
| Nov 2020 | +8.5% | |
| Oct 2020 | +8.1% | |
| Sep 2020 | +0.5% | |
| Aug 2020 | -1.7% | |
| Jul 2020 | +20.5% | |
| Jun 2020 | +6.9% | |
| May 2020 | +11.3% | |
| Apr 2020 | +14.6% | |
| Mar 2020 | -4.8% | |
| Feb 2020 | -6.1% | |
| Jan 2020 | +3.8% | |
| Dec 2019 | +3.8% | |
| Nov 2019 | -11.7% | |
| Oct 2019 | +4.8% | |
| Sep 2019 | -6.1% | |
| Aug 2019 | +2.7% | |
| Jul 2019 | +2.4% | |
| Jun 2019 | +10.2% | |
| May 2019 | +7.7% | |
| Apr 2019 | +3.8% | |
| Mar 2019 | +6.0% | |
| Feb 2019 | -0.8% | |
| Jan 2019 | +14.4% | |
| Dec 2018 | -8.7% | |
| Nov 2018 | -3.9% | |
| Oct 2018 | -15.0% | |
| Sep 2018 | -1.7% | |
| Aug 2018 | +3.7% | |
| Jul 2018 | +12.4% | |
| Jun 2018 | +4.7% | |
| May 2018 | +7.1% | |
| Apr 2018 | +1.6% | |
| Mar 2018 | +2.2% | |
| Feb 2018 | +0.1% | |
| Jan 2018 | +19.6% | |
| Dec 2017 | -0.0% | |
| Nov 2017 | -5.9% | |
| Oct 2017 | +6.9% | |
| Sep 2017 | +0.0% | |
| Aug 2017 | -6.6% | |
| Jul 2017 | +3.1% | |
| Jun 2017 | -4.1% | |
| May 2017 | +0.4% | |
| Apr 2017 | +8.5% | |
| Mar 2017 | +6.7% | |
| Feb 2017 | +18.5% | |
| Jan 2017 | +4.3% | |
| Dec 2016 | -0.3% | |
| Nov 2016 | +9.8% | |
| Oct 2016 | -5.0% |
Monthly total return (since Oct 2021)#
-20%-10%0%10%20%
Oct 2021+7.1%
Nov 2021-8.7%
Dec 2021+8.3%
Jan 2022-23%2022
Feb 2022+4.9%
Mar 2022+2.8%
Apr 2022-21%
May 2022-9.0%
Jun 2022-10%
Jul 2022+14%
Aug 2022-13%
Sep 2022-6.3%
Oct 2022+10%
Nov 2022+18%
Dec 2022-4.2%
Jan 2023+18%2023
Feb 2023-1.5%
Mar 2023+5.7%
Apr 2023-1.6%
May 2023-5.6%
Jun 2023+8.1%
Jul 2023+10%
Aug 2023-7.8%
Sep 2023-14%
Oct 2023-8.6%
Nov 2023+17%
Dec 2023+19%
Jan 2024-7.2%2024
Feb 2024+12%
Mar 2024-6.1%
Apr 2024-8.7%
May 2024+0.85%
Jun 2024-2.0%
Jul 2024-2.3%
Aug 2024+1.1%
Sep 2024+5.0%
Oct 2024-19%
Nov 2024+3.6%
Dec 2024-2.0%
Jan 2025+2.1%2025
Feb 2025+3.6%
Mar 2025-3.9%
Apr 2025+3.0%
May 2025+19%
Jun 2025+4.5%
Jul 2025-0.38%
Aug 2025+21%
Sep 2025-1.3%
Oct 2025-1.5%
Nov 2025+20%
Dec 2025-10%
Jan 2026-0.9%2026
Feb 2026-2.0%
Mar 2026-14%
Apr 2026-0.19%
May 2026+0.49%
Jun 2026-7.4%
Jul 2026+7.1%
Aug 2026-0.43%
Sep 2026-9.3%
Methodology#
Monthly returns are total returns (dividends reinvested), computed from IDXX'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.
FAQ#
- What is IDEXX Laboratories Inc.'s average monthly return?
- IDEXX Laboratories Inc. (IDXX) has averaged about 2.01% per month, positive in roughly 58% of months. The best month was Feb 2000 (+96.3%) and the worst was Mar 1997 (-62.4%).
More on IDEXX Laboratories Inc.
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