ALEC (Alector) PB Ratio: (As of Aug. 09, 2026)

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ALEC Alector Inc ALEC
30 GF Score
Price $1.78
GF Value $0.57
Valuation Significantly Overvalued
! 7 Warning Signs
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What is Alector PB Ratio?

The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. As of today (2026-08-09), Alector's share price is $1.78. Alector's Book Value per Share for the quarter that ended in Jun. 2026 was $-0.09. Hence, Alector's PB Ratio of today is .

The historical rank and industry rank for Alector's PB Ratio or its related term are showing as below:

During the past 10 years, Alector's highest PB Ratio was 27.34. The lowest was 0.97. And the median was 3.82.

ALEC's PB Ratio is not ranked *
in the Biotechnology industry.
Industry Median: 2.94
* Ranked among companies with meaningful PB Ratio only.

During the past 12 months, Alector's average Book Value Per Share Growth Rate was -112.80% per year. During the past 3 years, the average Book Value Per Share Growth Rate was -52.50% per year. During the past 5 years, the average Book Value Per Share Growth Rate was -36.90% per year.

During the past 10 years, the highest 3-Year average Book Value Per Share Growth Rate of Alector was -2.80% per year. The lowest was -52.50% per year. And the median was -25.95% per year.

Back to Basics: PB Ratio


Alector  (NAS:ALEC) PB Ratio Explanation

Unlike valuation ratios relative to the earning power such as PE Ratio, PE Ratio without NRI, PS Ratio, Price-to-Operating-Cash-Flow , or Price-to-Free-Cash-Flow, the PB Ratio measures the valuation of the stock relative to the underlying asset of the company.

The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.


Be Aware

Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.


Alector PB Ratio Related Terms


Alector PB Ratio Historical Data

* Premium members only.

The historical data trend for Alector's PB Ratio can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Alector PB Ratio Chart

Alector Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 5.63 3.57 5.05 1.48 5.61

Alector Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
PB Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 1.99 5.51 5.61 22.87 0.00

ALEC vs CAMP, ORMP, PYXS: PB Ratio Comparison

For the Biotechnology subindustry, Alector's PB Ratio, along with its competitors' market caps and PB Ratio data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Alector PB Ratio vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Alector's PB Ratio distribution charts can be found below:

* The bar in red indicates where Alector's PB Ratio falls into.


ALEC
30GF Score
Alector Inc ALEC
PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Alector PB Ratio Calculation

The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.

Alector's PB Ratio for today is calculated as follows:

PB Ratio=Share Price/Book Value per Share (Q: Jun. 2026)
=1.78/-0.09
=

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

It can also be calculated from the numbers for the whole company:

A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.

Is Alector (ALEC) Overvalued in 2026?

Based on GuruFocus' analysis, Alector stock appears to be overvalued. The current stock price of $1.78 is trading 212.3% above its estimated GF Value™ of $0.57. GuruFocus considers Alector to be Significantly Overvalued.

Key valuation signals for ALEC:

  • PB Ratio:
  • GF Value™: $0.57 vs. price of $1.78 (212.3% above fair value)
  • GF Score™: 30/100 with 7 warning signs

No single metric tells the full story. See the ALEC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Alector Business Description

Other Exchanges 0Z2:Germany
Address 131 Oyster Point Boulevard, Suite 600, South San Francisco, CA, USA, 94080
Alector Inc is a clinical-stage biotechnology company focused on developing therapies for neurodegenerative diseases. The company advances a pipeline of product candidates including Nivisnebart (AL101/GSK4527226) for Alzheimer's disease, AL137 for Alzheimer's disease, AL050 for Parkinson's disease and Lewy body dementia, and AL064, an siRNA program targeting tau for Alzheimer's disease and other tauopathies, supported by its proprietary Alector Brain Carrier (ABC) platform designed to improve delivery of therapeutics across the blood-brain barrier.
30GF Score

Get the complete analysis for ALEC

PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$1.78
Price
$0.57
GF Value