NASDAQ: MCRB
Seres Therapeutics Inc Stock

$6.46+0.49 (+8.21%)
Updated Jun 17, 2026
MCRB Price
$6.46
Fair Value Price
-$3.52
Market Cap
$62.56M
52 Week Low
$5.31
52 Week High
$29.98
P/E
-1.25x
P/B
2.36x
P/S
74.1x
PEG
N/A
Dividend Yield
N/A
Revenue
$1.15M
Earnings
-$46.90M
Gross Margin
100%
Operating Margin
-4,088.84%
Profit Margin
-4,088.8%
Debt to Equity
3.44
Operating Cash Flow
-$42M
Beta
1.22
Next Earnings
Aug 5, 2026
Ex-Dividend
N/A
Next Dividend
N/A

MCRB Overview

Seres Therapeutics, Inc. is a pioneering microbiome therapeutics firm dedicated to engineering bacterial consortia that modulate host cells and tissues to combat various diseases. Their flagship therapeutic, SER-109, an oral microbiome treatment, has successfully concluded Phase III clinical trials for the management of Clostridioides difficile infection (CDI). The company's pipeline further encompasses SER-155, a synthetically cultured bacterial formulation currently undergoing Phase Ib evaluation. This candidate aims to mitigate the risk of gastrointestinal and bloodstream infections, alongside graft-versus-host disease, in vulnerable patients undergoing allogeneic hematopoietic stem cell or solid organ transplantation. Additionally, Seres Therapeutics is advancing SER-287 and SER-301, both in Phase Ib for ulcerative colitis, as well as SER-401, which targets metastatic melanoma, and SER-262, also directed at Clostridioides difficile infection. Seres maintains strategic alliances through licensing and collaboration agreements with entities such as Nestec Ltd. and Memorial Sloan Kettering Cancer Center. Established in 2010, the company previously operated as Seres Health, Inc. before adopting its current name in May 2015, and it maintains its principal offices in Cambridge, Massachusetts.

Zen Rating

Our proven quant model uses 115 proprietary factors, including AI, to determine MCRB's potential to beat the market

DSell
  • Stocks with a Zen Rating of Sell (D) had an average loss of -4.50% per year. Learn More

Zen Rating Component Grades

F
Zen Rating uses advanced AI algorithms that detect subtle patterns in market data; it anticipates future trends that point to superior stock price results.

Industry: Biotech

Industry Rating
F
MCRB
Ranked
#334 of 463

Top Ranked Stocks in Industry

Name / TickerPriceZen Rating
$226.93A
$52.44A
$16.14A
View Top Biotech Stocks

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MCRB News

Overview

Due Diligence Score

Industry Average (24)
You've viewed Due Diligence Score for 10/10 free stocks. Upgrade to Premium to see how MCRB scored across 33 valuation, financial, forecast, performance, and dividend due diligence checks.

Due Diligence Checks

MCRB ($6.46) is overvalued by 283.69% relative to our estimate of its Fair Value price of -$3.52 based on Discounted Cash Flow (DCF) modelling
Below Fair Value Valuation
MCRB ($6.46) is not significantly undervalued (283.69%) relative to our estimate of its Fair Value price of -$3.52 based on Discounted Cash Flow (DCF) modelling, when including a healthy margin of safety
Significantly Below Fair Value Valuation
MCRB is unprofitable, so we... subscribe to Premium to read more.
Below Benjamin Graham Formula Value Valuation
There are 30 more MCRB due diligence checks available for Premium users.

Valuation

MCRB fair value

Fair Value of MCRB stock based on Discounted Cash Flow (DCF)

Price
$6.46
Fair Value
-$3.52
Undervalued by
283.69%
MCRB ($6.46) is overvalued by... subscribe to Premium to read more.
Below Fair Value Valuation
MCRB ($6.46) is not significantly... subscribe to Premium to read more.
Significantly Below Fair Value Valuation
MCRB is unprofitable, so we... subscribe to Premium to read more.
Below Benjamin Graham Formula Value Valuation

MCRB price to earnings (PE)

For valuing profitable companies with steady earnings

Company
-1.25x
Industry
14.91x
Market
12.4x

MCRB price to book (PB)

For valuing companies that are loss-making or have lots of physical asset

Company
2.36x
Industry
4.94x
MCRB is good value based... subscribe to Premium to read more.
P/B vs Industry Valuation

MCRB's financial health

Profit margin

Revenue
$358.0k
Net Income
-$19.9M
Profit Margin
-5,562.3%
MCRB's cash burn is expected... subscribe to Premium to read more.
Interest Coverage Financials
MCRB's profit margin has decreased... subscribe to Premium to read more.
Profit Margin Growth Financials

Assets to liabilities

Assets
$117.6M
Liabilities
$91.1M
Debt to equity
3.44
MCRB's short-term assets ($31.84M) exceed... subscribe to Premium to read more.
Short-term Liabilities Financials
MCRB's long-term liabilities ($71.78M) exceed... subscribe to Premium to read more.
Long-term Liabilities Financials
MCRB's debt has increased relative... subscribe to Premium to read more.
Shrinking Debt Financials
MCRB's debt to equity ratio... subscribe to Premium to read more.
Healthy Debt to Equity Financials

Cash flow

Operating
-$16.4M
Investing
$0.0
Financing
$428.0k
MCRB's cash and short-term investments... subscribe to Premium to read more.
Debt Coverage Financials

MCRB vs Biotech Stocks

TickerZen RatingMarket Cap1d %P/EP/B
MCRBD$62.56M+8.21%-1.25x2.36x
IBO$62.21M+5.68%-1.99x5.43x
EDSAD$61.18M+9.73%-5.13x6.00x
IMA$64.18M+4.40%-1.34x0.52x
INKTC$60.83M+3.39%-4.33x-4.79x

Seres Therapeutics Stock FAQ

What is Seres Therapeutics's quote symbol?

(NASDAQ: MCRB) Seres Therapeutics trades on the NASDAQ under the ticker symbol MCRB. Seres Therapeutics stock quotes can also be displayed as NASDAQ: MCRB.

If you're new to stock investing, here's how to buy Seres Therapeutics stock.

What is the 52 week high and low for Seres Therapeutics (NASDAQ: MCRB)?

(NASDAQ: MCRB) Seres Therapeutics's 52-week high was $29.98, and its 52-week low was $5.31. It is currently -78.45% from its 52-week high and 21.66% from its 52-week low.

How much is Seres Therapeutics stock worth today?

(NASDAQ: MCRB) Seres Therapeutics currently has 9,683,934 outstanding shares. With Seres Therapeutics stock trading at $6.46 per share, the total value of Seres Therapeutics stock (market capitalization) is $62.56M.

Seres Therapeutics stock was originally listed at a price of $1,028.00 in Jun 26, 2015. If you had invested in Seres Therapeutics stock at $1,028.00, your return over the last 10 years would have been -99.37%, for an annualized return of -39.77% (not including any dividends or dividend reinvestments).

How much is Seres Therapeutics's stock price per share?

(NASDAQ: MCRB) Seres Therapeutics stock price per share is $6.46 today (as of Jun 17, 2026).

What is Seres Therapeutics's Market Cap?

(NASDAQ: MCRB) Seres Therapeutics's market cap is $62.56M, as of Jun 19, 2026.

Market cap (market capitalization) is the total market value of a publicly traded company's outstanding shares.

Seres Therapeutics's market cap is calculated by multiplying MCRB's current stock price of $6.46 by MCRB's total outstanding shares of 9,683,934.
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.