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Seres Therapeutics, Inc. (MCRB)

Healthcare | Biotechnology | Cambridge, United States | NasdaqGS
5.62 USD -0.49 (-8.020%) ⇩ (July 13, 2026, 4 p.m. EDT)
After hours: 5.61 -0.01 (-0.010%) ⇩ (July 13, 2026, 5:06 p.m. EDT)

Short-term:★★☆☆☆Long-term:★☆☆☆☆Dividends:☆☆☆☆☆
Hot Take | July 11, 2026, 4:32 a.m. EDT

The investment case here is severely compromised by a deteriorating business model and a broken capital structure. Fundamentally, the company is hemorrhaging cash with operating margins of nearly -58%, negative free cash flow exceeding $40 million annually, and a massive debt load relative to its tiny equity base. The balance sheet is fragile, with a debt-to-equity ratio of over 300, suggesting that any further operational shortfall could trigger distress. While the stock trades at a low absolute price, the valuation metrics are nonsensical given the losses, and the historical trajectory shows a catastrophic -98% decline over the last nine years, with the last two years seeing double-digit percentage drops. This is not a value opportunity; it is a value trap where the market has correctly priced out the risk of insolvency or failed clinical trials. On the short end, the technicals are weak, trading below key moving averages, and the options market is screaming caution with heavy put positioning and negligible call interest. There is no catalyst visible to reverse this multi-year decline, making this a security to avoid entirely.

Model Selection — Backtest MAE (log-scale, lower is better)
ModelMAE
MSTL ✓0.078194
AutoETS0.080320
AutoTheta0.082551
AutoARIMA0.082648

Forecast horizon: 45 days | Selected: MSTL

Forecast Reliability
Score 33%
H-stat 3.33
Ljung-Box p 0.000
Jarque-Bera p 0.016
Excess Kurtosis 0.33
Attribute Value
Sector Healthcare
Debt to Equity Ratio 303.781
Revenue per Share 0.126
Market Cap 54,423,708
Forward P/E -0.85
Beta 0.10
Website https://www.serestherapeutics.com

As of July 11, 2026, 4:32 a.m. EDT: Speculators are heavily positioned for downside protection, with significant open interest in out-of-the-money puts at strikes well above the current price (e.g., 10.0 and 12.5 for Jan 2027). Call activity is sparse and concentrated at lower strikes, while implied volatility remains extremely low across all expirations, indicating a lack of speculative optimism and a market pricing in continued stagnation or decline.


Info Dump

Attribute Value
52 Week Change -0.5885522
Address1 101 Cambridgepark Drive
All Time High 1,040.0
All Time Low 5.31
Ask 6.83
Ask Size 2
Audit Risk 6
Average Analyst Rating 1.0 - Strong Buy
Average Daily Volume10 Day 149,280
Average Daily Volume3 Month 79,808
Average Volume 79,808
Average Volume10Days 149,280
Beta 0.095
Bid 4.4
Bid Size 2
Board Risk 9
Book Value 2.763
City Cambridge
Compensation As Of Epoch Date 1,767,139,200
Compensation Risk 8
Country United States
Crypto Tradeable 0
Currency USD
Current Price 5.62
Current Ratio 1.646
Custom Price Alert Confidence HIGH
Date Short Interest 1,782,777,600
Day High 6.0001
Day Low 5.32
Debt To Equity 303.781
Display Name Seres Therapeutics
Earnings Call Timestamp End 1,762,349,400
Earnings Call Timestamp Start 1,762,349,400
Earnings Timestamp 1,777,984,200
Earnings Timestamp End 1,785,933,000
Earnings Timestamp Start 1,785,933,000
Ebitda -83,804,000
Ebitda Margins 0.0
Enterprise To Ebitda -1.254
Enterprise To Revenue 91.62
Enterprise Value 105,088,712
Eps Current Year -7.515
Eps Forward -6.575
Eps Trailing Twelve Months -5.2
Esg Populated 0
Exchange NMS
Exchange Data Delayed By 0
Exchange Timezone Name America/New_York
Exchange Timezone Short Name EDT
Fifty Day Average 7.2327
Fifty Day Average Change -1.6127
Fifty Day Average Change Percent -0.22297344
Fifty Two Week Change Percent -58.855217
Fifty Two Week High 29.98
Fifty Two Week High Change -24.36
Fifty Two Week High Change Percent -0.8125417
Fifty Two Week Low 5.31
Fifty Two Week Low Change 0.30999994
Fifty Two Week Low Change Percent 0.058380403
Fifty Two Week Range 5.31 - 29.98
Financial Currency USD
First Trade Date Milliseconds 1,435,325,400,000
Float Shares 8,473,830
Forward Eps -6.575
Forward P E -0.85475284
Free Cashflow -41,538,248
Full Exchange Name NasdaqGS
Full Time Employees 66
Gmt Off Set Milliseconds -14,400,000
Governance Epoch Date 1,782,864,000
Gross Margins 0.0
Gross Profits -52,304,000
Has Pre Post Market Data 1
Held Percent Insiders 0.117819995
Held Percent Institutions 0.24373
Implied Shares Outstanding 9,683,934
Industry Biotechnology
Industry Disp Biotechnology
Industry Key biotechnology
Is Earnings Date Estimate 1
Language en-US
Last Fiscal Year End 1,767,139,200
Last Split Date 1,745,280,000
Last Split Factor 1:20
Long Business Summary Seres Therapeutics, Inc., a clinical-stage company, focuses on developing biotherapeutics for serious diseases. The company develops SER-155, an investigational oral live biotherapeutic to decolonize GI pathogens, enhance GI epithelial barrier integrity, and regulate immune response to prevent bacterial bloodstream infections, as well as other pathogen-associated negative clinical outcomes in patients undergoing allogeneic hematopoietic stem cell transplantation. It also develops SER-603, a LBP candidate optimized to treat disruptions in the GI microbiome and to improve GI mucosal barrier integrity through the inhibition of inflammatory bacteria and associated metabolites; and SER-147, a live biotherapeutic composition to prevent bacterial bloodstream and spontaneous bacterial peritonitis infections in patients with metabolic disease, including chronic liver disease. The company was formerly known as Seres Health, Inc. and changed its name to Seres Therapeutics, Inc. in May 2015. Seres Therapeutics, Inc. was incorporated in 2010 and is headquartered in Cambridge, Massachusetts.
Long Name Seres Therapeutics, Inc.
Market us_market
Market Cap 54,423,708
Market State PREPRE
Max Age 86,400
Message Board Id finmb_222388947
Most Recent Quarter 1,774,915,200
Net Income To Common -46,899,000
Next Fiscal Year End 1,798,675,200
Non Diluted Market Cap 59,168,836
Number Of Analyst Opinions 2
Open 5.94
Operating Cashflow -42,153,000
Operating Margins -58.399437
Overall Risk 8
Payout Ratio 0.0
Phone 617 945 9626
Post Market Change -0.009999752
Post Market Change Percent -0.17793153
Post Market Price 5.61
Post Market Time 1,783,976,805
Previous Close 6.11
Price Eps Current Year -0.74783766
Price Hint 2
Price To Book 2.034021
Price To Sales Trailing12 Months 47.448742
Profit Margins 0.0
Quick Ratio 1.554
Quote Source Name Nasdaq Real Time Price
Quote Type EQUITY
Recommendation Key strong_buy
Recommendation Mean 1.0
Region US
Regular Market Change -0.49
Regular Market Change Percent -8.01964
Regular Market Day High 6.0001
Regular Market Day Low 5.32
Regular Market Day Range 5.32 - 6.0001
Regular Market Open 5.94
Regular Market Previous Close 6.11
Regular Market Price 5.62
Regular Market Time 1,783,972,801
Regular Market Volume 333,522
Return On Assets -0.38876
Return On Equity -1.21873
Revenue Per Share 0.126
Sand P52 Week Change 0.20847368
Sector Healthcare
Sector Disp Healthcare
Sector Key healthcare
Share Holder Rights Risk 8
Shares Outstanding 9,683,934
Shares Percent Shares Out 0.0162
Shares Short 157,327
Shares Short Previous Month Date 1,780,012,800
Shares Short Prior Month 478,817
Short Name Seres Therapeutics, Inc.
Short Percent Of Float 0.021300001
Short Ratio 1.41
Source Interval 15
State MA
Symbol MCRB
Target High Price 22.0
Target Low Price 12.0
Target Mean Price 17.0
Target Median Price 17.0
Total Cash 29,834,000
Total Cash Per Share 3.081
Total Debt 80,499,000
Total Revenue 1,147,000
Tradeable 0
Trailing Annual Dividend Rate 0.0
Trailing Annual Dividend Yield 0.0
Trailing Eps -5.2
Trailing Peg Ratio None
Triggerable 1
Two Hundred Day Average 12.3337
Two Hundred Day Average Change -6.7137003
Two Hundred Day Average Change Percent -0.54433787
Type Disp Equity
Volume 333,522
Website https://www.serestherapeutics.com
Zip 2,140