Alector, Inc. (ALEC) P/E Ratio History
UndervaluedTrading at 6.2x vs 5Y avg 15.6x · 50th percentile · Below historical baseline · Data 2022–2026
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P/E Ratio Analysis
As of November 8, 2026, Alector, Inc. (ALEC) trades at a price-to-earnings ratio of 6.2x, with a stock price of $2.29 and trailing twelve-month earnings per share of $0.37.
The current P/E is 61% below its 5-year average of 15.6x. Over the past five years, ALEC's P/E has ranged from a low of 5.1x to a high of 26.1x, placing the current valuation at the 50th percentile of its historical range.
Compared to the Healthcare sector median P/E of 24.6x, ALEC trades at a 75% discount to its sector peers. The sector includes 242 companies with P/E ratios ranging from 0.0x to 196.0x.
Relative to the broader market, ALEC trades at a notable discount to the S&P 500 median P/E of 21.8x. 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 ALEC 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.
ALEC Cross-Benchmark Valuation
How does the current P/E compare to sector peers and the broader market?
ALEC P/E vs Peers
Neurodegeneration Drug Developers peers sorted by market cap
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $4B | 10.3Lowest | -Best | +68%Best | |
| $37B | 105.5 | -Best | -21% | |
| $8B | 27.7 | -Best | -148% |
Lower P/E can signal a discount or weaker growth expectations; PEG adds growth context.
ALEC Historical P/E Data (2022–2026)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Period End | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2026 Q3 | Sep 30 2026 | $1.85 | $0.36 | 5.1x | -67% |
| FY2022 Q2 | - | $10.16 | $0.39 | 26.1x | +67% |
Average P/E for displayed period: 15.6x
ALEC Chart Terminal
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Intrinsic Valuation
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Historical Returns
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Peer Comparison
Compare growth, multiples, and margins vs sector.
ALEC — Frequently Asked Questions
Quick answers to the most common questions about buying ALEC stock.
What is ALEC's P/E ratio?
Alector, Inc. (ALEC) trailing twelve-month P/E ratio is 6.2x, based on TTM diluted EPS of $0.37. The 5-year average P/E is 15.6x and the historical range spans 5.1x to 26.1x.
Is ALEC stock overvalued or undervalued?
ALEC trades at 6.2x P/E, below its 5-year average of 15.6x. At the 50th percentile of its historical range (5.1x–26.1x), the stock is priced at a discount to its own history.
Is ALEC stock expensive?
No, ALEC is not expensive on a historical basis. The current P/E of 6.2x is below the 5-year average of 15.6x and sits at the 50th percentile of its valuation range.
What is ALEC's historical P/E range?
Over the past 5 years, ALEC's P/E ratio has ranged from 5.1x to 26.1x, with a median of 26.1x and an average of 15.6x. The current P/E of 6.2x places the stock at the 50th percentile of this range. Full historical data spans 2022–2026.
How does ALEC's P/E compare to the S&P 500?
ALEC trades at 6.2x P/E versus the S&P 500 median of 21.8x. The 72% discount to the market suggests lower growth expectations or perceived higher risk.
How does ALEC's valuation compare to Healthcare peers?
Alector, Inc. P/E of 6.2x compares to the Healthcare sector median of 24.6x. The discount suggests lower growth expectations, weaker margins, or higher perceived risk relative to peers. See the peer comparison table on this page for ticker-by-ticker P/E and PEG.
What is ALEC's PEG ratio?
ALEC PEG ratio is N/A, based on a P/E of 6.2x and EPS growth of -13.0%. PEG normalises P/E by growth and helps compare stocks with different earnings trajectories.
What is ALEC's earnings yield?
ALEC earnings yield is 16.26%, the inverse of its 6.2x P/E ratio. Earnings yield represents the percentage of each dollar invested that the company earns. It can be compared directly to bond yields to assess relative attractiveness of stocks versus fixed income.