Insmed Incorporated (INSM) P/E Ratio History
Historical price-to-earnings valuation from 2009 to 2010
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INSM Valuation Context
How does the current P/E compare to historical and market benchmarks?
P/E Ratio Analysis
As of May 6, 2026, Insmed Incorporated (INSM) trades at a price-to-earnings ratio of -21.4x, with a stock price of $137.09 and trailing twelve-month earnings per share of $-5.60.
The current P/E is 143% below its 5-year average of 49.1x. Over the past five years, INSM's P/E has ranged from a low of 0.8x to a high of 241.7x, placing the current valuation at the 0th percentile of its historical range.
Compared to the Healthcare sector median P/E of 22.1x, INSM trades at a 196% discount to its sector peers. The sector includes 242 companies with P/E ratios ranging from 0.0x to 178.0x.
Relative to the broader market, INSM trades at a notable discount to the S&P 500 median P/E of 25.2x. Investors should consider the company's growth prospects, competitive position, and earnings quality when evaluating whether the current valuation is justified.
For a comprehensive intrinsic value estimate using discounted cash flow analysis, see our INSM DCF Valuation Calculator →
Note: P/E ratio is just one valuation metric. It does not account for balance sheet strength, cash flow quality, or growth sustainability. Always conduct comprehensive due diligence before making investment decisions.
INSM P/E vs Peers
P/E ratio compared to closely matched public peers
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $40B | 130.0 | -Best | +207%Best | |
| $11B | 30.3 | -Best | -19% | |
| $4B | 9.4Lowest | -Best | +68% | |
| $9B | 42.2 | -Best | +128% |
Peers sorted by market capitalization. P/E below peers may indicate undervaluation or lower growth expectations. Consider PEG ratio for growth-adjusted comparison.
INSM Historical P/E Data (2009–2010)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Date | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2010 Q3 | $7.20 | $0.14 | 53.1x | +8% | |
| FY2010 Q2 | Wed Jun 30 2010 00:00:00 GM | $6.73 | $0.15 | 45.0x | -8% |
| FY2010 Q1 | Wed Mar 31 2010 00:00:00 GM | $11.70 | $0.05 | 241.7x | +392% |
| FY2009 Q4 | $7.70 | $9.64 | 0.8x | -98% | |
| FY2009 Q3 | Wed Sep 30 2009 00:00:00 GM | $8.20 | $9.14 | 0.9x | -98% |
| FY2009 Q2 | $10.00 | $8.97 | 1.1x | -98% | |
| FY2009 Q1 | $10.00 | $8.72 | 1.1x | -98% |
Average P/E for displayed period: 49.1x
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Start ComparisonINSM — Frequently Asked Questions
Quick answers to the most common questions about buying INSM stock.
Is INSM stock overvalued or undervalued?
INSM trades at -21.4x P/E, below its 5-year average of 49.1x. At the N/A percentile of historical range, the stock is priced at a discount to its own history.
How does INSM's valuation compare to peers?
Insmed Incorporated P/E of -21.4x compares to sector median of 22.1x. The discount suggests lower growth expectations or higher risk.
What is INSM's PEG ratio?
INSM PEG ratio is N/A. Above 2.0 indicates premium valuation relative to growth rate. Historical P/E data spans 2009-2010.