52-Week High
$3.40
52-Week Low
$1.09
Market Cap
$266.0M
P/E Ratio
-1.73
Div Yield
N/A

Alector Performance Comparison

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Stock Range

Today's Range

Low: $1.71 High: $1.91
on June 3, 2026

52 Week Range

Low: $1.09 High: $3.40
on December 3, 2025
on October 16, 2025

All-Time High: $43.32 on June 28, 2021

Explore how other US stocks compare to their 52-week ranges: View US Market 52-Week Insights

Key Statistics

Market Cap i $266.0M
EPS i -1.39
P/E Ratio (TTM) i -1.73
Forward P/E i -2.76
P/B Ratio i 8.74
PEG Ratio i 0.00
Div. Yield i N/A
ROE i -181.56%
Beta i 0.582
Debt to Equity i 118.22

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Financial Highlights

Quarter Income Flow i

Annual Income Flow i

Peer Performance Comparison

Company Market Cap 1W 1M 3M 6M YTD 1Y 3Y 5Y 10Y 15Y 20Y
265.97M Small-cap -10.96% -22.31% -11.76% 71.05% 27.45% 62.41% -69.66% -88.95% -86.75% -86.75% -86.75%
Vertex
Vertex VRTX
109.45B Large-cap -2.49% -1.11% -12.54% -1.86% -5.98% 1.24% 34.08% 113.19% 376.31% 717.28% 1,190.86%
80.98B Large-cap -5.03% -15.02% -23.79% -18.77% -22.36% 25.39% -16.92% 20.10% 53.41% 959.24% 4,557.42%
2.04B Mid-cap -6.88% -18.39% 1.79% 329.87% -3.43% 202.93% 558.46% 676.17% -7.24% -90.64% -97.72%
1.96B Small-cap -5.08% -9.97% 3.43% -3.94% -9.43% 119.86% 189.85% -20.78% 93.31% 93.31% 93.31%
Amylyx
Amylyx AMLX
1.91B Small-cap -2.85% -19.26% -13.14% -3.35% 16.37% 178.64% -43.01% -20.59% -20.59% -20.59% -20.59%

Ownership & Short Interest

Insider Ownership i 10.05%
Institutional Ownership i 80.86%
Shares Short i 6M
Short Ratio i 8.17
Short % of Shares Outstanding i 7.03%
Average 10-Day Volume i 510K
Average 90-Day Volume i 656K

Calculate Your Alector Investment Returns

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Long-Term Investment Performance Analysis

Alector stock price in Feb 2019 was $16.30, A $1,000.00 lump sum investment in Alector made 7 years ago would be worth approximately $108.59 today, representing a negative return of -89.14%. This translates to an annualized return (CAGR) of -26.14%.

7 Years 3 Months Investment Scenario (Feb 2019 - Jun 2026)

Initial Investment $1,000.00
Current Value $108.59
Annual Return (CAGR) -26.14%
Shares Owned 61.3

Investment Breakdown

Value Comparison

Disclaimer: This calculator is for informational purposes only and does not consider taxes, fees, or other costs associated with investing. Past performance does not guarantee future results.

Frequently Asked Questions

In the last 52 weeks, Alector reached a high of $3.40 (on October 16, 2025) and a low of $1.09 (on December 3, 2025).
Curious about Alector's size and valuation? Its market capitalization stands at 265.97M. When it comes to valuation, the P/E ratio (trailing twelve months) is -1.73, and the forward P/E (looking ahead) is -2.76.
As for dividends, Alector isn't currently offering a significant yield, or that specific data isn't available right now.

When looking at Alector, it can be helpful to see how it compares to other players in its field. Here are a few similar companies or key competitors:

CompanyMkt CapSectorIndustry1Y Return3Y Return
Vertex
VRTX
109.45BHealthcareBiotechnology1.24%34.08%
Regeneron
REGN
80.98BHealthcareBiotechnology25.39%-16.92%
Capricor
CAPR
2.04BHealthcareBiotechnology202.93%558.46%
Zymeworks
ZYME
1.96BHealthcareBiotechnology119.86%189.85%
Amylyx
AMLX
1.91BHealthcareBiotechnology178.64%-43.01%

For a more comprehensive list, please see the Peer Performance Comparison table on this page.

To get a sense of Alector's financial health, here are a few key indicators: its Return on Equity (ROE) over the last twelve months is -181.56%, the Debt to Equity ratio from the most recent quarter is 118.22, and its Gross Profit Margin stands at N/A.
Looking at Alector's growth, its revenue over the trailing twelve months (TTM) was $21M. Compared to the same quarter last year (YoY), quarterly revenue grew by -88.50%, and quarterly earnings saw a YoY growth of -88.50%.
Wondering who owns Alector stock? Company insiders (like executives and directors) hold about 10.05% of the shares, while institutional investors (such as mutual funds and pension funds) own approximately 80.86%.

For more common questions about our data, please visit our About Data page.

Nippun Rana

Nippun Rana

Chasing the market trend!

Hi, I’m Nippun, a tech enthusiast from Haryana, India. I have been coding since 2010 and using my coding skills in the share market since 2020. I have been coding scripts in Pinescript that work on Tradingview app/web. I love learning about new technology and applying it to solve real-world problems. Coding and share-market are my passions, and I enjoy finding and fixing bugs in code. I aim to share my skill set and experience that can positively impact society. Feel free to connect with me, an...

Data is provided for informational purposes only. Devyara does not guarantee the accuracy of the data displayed.