INSM monthly performance report
Explore INSM's monthly returns, drawdown, and seasonality trends — updated every month.
INSM monthly report
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Key takeaways
- Insmed Incorporated (INSM) closed November 2026 at $118.07, up 4.88% for the month and −39.26% over the trailing 12 months.
- Year-to-date, INSM is −32.16%, underperforming the S&P 500 which has returned +11.03% YTD.
- The stock is trading −4.71% versus its 200-day moving average ($123.91), a cautious technical signal.
- Over the past three years, INSM has outperformed the S&P 500 by +325.30%, with a relative strength index reading of 287.2.
- Win rate over the trailing 39 months stands at 46.2% — 18 positive months versus 21 negative months.
Insmed Incorporated ended November 2026 at $118.07, posting a monthly return of +4.88%. The S&P 500 returned +0.19% over the same window, leaving relative performance at +4.69%.
The current quarter stands at +3.44% (Q4 2026 (QTD)), while medium-term trend remains soft: price is −4.71% versus the 200-day moving average ($123.91).
Year-to-date, INSM is −32.16% against SPY +11.03%, a gap of −43.19%. The stock is currently −44.50% below its 52-week high, with maximum 3-year drawdown at −56.54%.
| Period | INSM | S&P 500 (SPY) | Excess return |
|---|---|---|---|
| 1 Day | −2.22% | −0.35% | −1.87% |
| 1 Week | +8.56% | +3.29% | +5.27% |
| 1 Month | +4.88% | +0.19% | +4.69% |
| 3 Months | −6.54% | −2.48% | −4.06% |
| 6 Months | +13.65% | +2.00% | +11.65% |
| YTD | −32.16% | +11.03% | −43.19% |
| 12 Months | −39.26% | +10.79% | −50.05% |
| 3 Years | +397.14% | +71.83% | +325.30% |
| Rank | Month | Return |
|---|---|---|
| #1 | May 2024 | +122.69% |
| #2 | Jun 2025 | +44.33% |
| #3 | Oct 2025 | +31.66% |
| #4 | Aug 2025 | +26.86% |
| #5 | Dec 2023 | +23.86% |
| Rank | Month | Return |
|---|---|---|
| #1 | May 2026 | −21.58% |
| #2 | Apr 2026 | −16.63% |
| #3 | Dec 2025 | −16.23% |
| #4 | Jan 2024 | −10.29% |
| #5 | Jan 2026 | −9.87% |
| Quarter | Return |
|---|---|
| Q3 2025 | +43.09% |
| Q4 2025 | +20.85% |
| Q1 2026 | −6.04% |
| Q2 2026 | −34.80% |
| Q3 2026 | +7.05% |
| Q4 2026 (QTD) | +3.44% |
| Year | Return |
|---|---|
| 2023 | +55.11% |
| 2024 | +122.78% |
| 2025 | +152.09% |
| 2026 | −32.16% |
| Metric | Value |
|---|---|
| 52-Week High | $212.75 (2025-12-02) |
| 52-Week Low | $90.39 (2026-06-10) |
| Current Price | $118.07 |
| 200-Day Moving Average | $123.91 |
| Price vs 200DMA | −4.71% |
| 3-Year Maximum Drawdown | −56.54% (2026-06-10) |
| Current Drawdown from 52W High | −44.50% |
| RS metric | Value |
|---|---|
| RS Index (3-year, rebased to 100) | 287.2 |
| 3-Year Excess Return vs S&P 500 | +325.30% |
| RS Peak | 572.4 (Dec 2025) |
| RS Trough | 76.5 (May 2024) |
| Status | Outperforming Benchmark |
Frequently asked questions
What was INSM's return for this report period?
INSM returned +4.88% in the latest monthly window ending 2026-11-12.
Has INSM outperformed SPY year to date?
YTD INSM: −32.16% vs SPY: +11.03%.
What is INSM's 12-month return?
−39.26% over the trailing 12 months.
Is INSM above or below its 200-day moving average?
Price is −4.71% versus 200DMA ($123.91).
What is the maximum drawdown in the 3-year window?
−56.54% on 2026-06-10.