IDXX monthly performance report
Explore IDXX's monthly returns, drawdown, and seasonality trends — updated every month.
IDXX monthly report
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Key takeaways
- Idexx Laboratories (IDXX) closed November 2026 at $704.23, up 27.76% for the month and +0.39% over the trailing 12 months.
- Year-to-date, IDXX is +4.09%, underperforming the S&P 500 which has returned +10.62% YTD.
- The stock is trading +22.80% versus its 200-day moving average ($573.50), a bullish technical signal.
- Over the past three years, IDXX has underperformed the S&P 500 by −8.50%, with a relative strength index reading of 95.
- Win rate over the trailing 39 months stands at 46.2% — 18 positive months versus 21 negative months.
Idexx Laboratories ended November 2026 at $704.23, posting a monthly return of +27.76%. The S&P 500 returned −0.18% over the same window, leaving relative performance at +27.94%.
The current quarter stands at +34.86% (Q4 2026 (QTD)), while medium-term trend remains constructive: price is +22.80% versus the 200-day moving average ($573.50).
Year-to-date, IDXX is +4.09% against SPY +10.62%, a gap of −6.53%. The stock is currently −8.54% below its 52-week high, with maximum 3-year drawdown at −37.41%.
| Period | IDXX | S&P 500 (SPY) | Excess return |
|---|---|---|---|
| 1 Day | +0.89% | −0.36% | +1.25% |
| 1 Week | +4.17% | +2.59% | +1.57% |
| 1 Month | +27.76% | −0.18% | +27.94% |
| 3 Months | +28.96% | −2.37% | +31.33% |
| 6 Months | +32.16% | +0.83% | +31.33% |
| YTD | +4.09% | +10.62% | −6.53% |
| 12 Months | +0.39% | +12.25% | −11.86% |
| 3 Years | +62.87% | +71.37% | −8.50% |
| Rank | Month | Return |
|---|---|---|
| #1 | Nov 2026 | +27.76% |
| #2 | Aug 2025 | +21.11% |
| #3 | Nov 2025 | +19.60% |
| #4 | Dec 2023 | +19.16% |
| #5 | May 2025 | +18.65% |
| Rank | Month | Return |
|---|---|---|
| #1 | Oct 2024 | −19.46% |
| #2 | Sep 2023 | −14.50% |
| #3 | Mar 2026 | −14.44% |
| #4 | Dec 2025 | −10.14% |
| #5 | Apr 2024 | −8.74% |
| Quarter | Return |
|---|---|
| Q3 2025 | +19.12% |
| Q4 2025 | +5.89% |
| Q1 2026 | −16.95% |
| Q2 2026 | −6.31% |
| Q3 2026 | −0.81% |
| Q4 2026 (QTD) | +34.86% |
| Year | Return |
|---|---|
| 2023 | +36.06% |
| 2024 | −25.51% |
| 2025 | +63.63% |
| 2026 | +4.09% |
| Metric | Value |
|---|---|
| 52-Week High | $769.98 (2025-11-26) |
| 52-Week Low | $500.61 (2026-09-11) |
| Current Price | $704.23 |
| 200-Day Moving Average | $573.50 |
| Price vs 200DMA | +22.80% |
| 3-Year Maximum Drawdown | −37.41% (2025-04-08) |
| Current Drawdown from 52W High | −8.54% |
| RS metric | Value |
|---|---|
| RS Index (3-year, rebased to 100) | 95 |
| 3-Year Excess Return vs S&P 500 | −8.50% |
| RS Peak | 120.6 (Dec 2023) |
| RS Trough | 66.4 (Oct 2026) |
| Status | Underperforming Benchmark |
Frequently asked questions
What was IDXX's return for this report period?
IDXX returned +27.76% in the latest monthly window ending 2026-11-13.
Has IDXX outperformed SPY year to date?
YTD IDXX: +4.09% vs SPY: +10.62%.
What is IDXX's 12-month return?
+0.39% over the trailing 12 months.
Is IDXX above or below its 200-day moving average?
Price is +22.80% versus 200DMA ($573.50).
What is the maximum drawdown in the 3-year window?
−37.41% on 2025-04-08.