Which has grown faster, KYNB or MCRB?

Neither grew: over the past five years both shrank revenue, with MCRB's decline the smaller — KYNB at a -51.49% CAGR versus MCRB at -42.51%.

Is KYNB or MCRB more profitable?

KYNB runs the higher net margin — KYNB at 3967.77% versus MCRB at -1192.94%.

Kyntra Bio, Inc. (KYNB) vs Seres Therapeutics, Inc. (MCRB)

A side-by-side comparison of Kyntra Bio, Inc. and Seres Therapeutics, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of October 6, 2026. Differences are shown without an overall score or investment verdict.

KYNB

Kyntra Bio, Inc.

$24M

$6.00HealthcareDelayed quote: Oct 6, 2026, 10:50 AM EDT

MCRB

Seres Therapeutics, Inc.

$28M

$2.86HealthcareDelayed quote: Oct 6, 2026, 10:46 AM EDT

Total return — KYNB vs MCRB

growth of $100 · dividends reinvested · last 10y

KYNB -98.8% (-35.7%/yr)MCRB -98.8% (-35.6%/yr)MCRB compounded faster over this window

KYNB MCRB

KYNB vs MCRB: by the numbers

•MCRB is the larger company ($28M vs $24M market cap).
•KYNB is profitable (3967.77% net margin) while MCRB runs a net loss (-1192.94%).
•Both shrank revenue over the past five years; MCRB's decline was smaller (-42.51% vs -51.49% CAGR).

Metrics side by side

Valuation

Metric	KYNB	MCRB
P/S ratio	5.26	14.68
P/B ratio	N/A	0.80

Profitability

Metric	KYNB	MCRB
Gross margin	91.37%	-423.83%
Operating margin	-712.66%	-11910.14%
Net margin	3967.77%	-1192.94%
ROE	N/A	-65.05%
ROIC	-78.16%	-103.04%

Growth (annualized)

Metric	KYNB	MCRB
Revenue CAGR (5Y)	-51.49%	-42.51%
Total return CAGR (5Y)	-52.67%	-53.37%

Frequently asked

Which has grown faster, KYNB or MCRB?: Neither grew: over the past five years both shrank revenue, with MCRB's decline the smaller — KYNB at a -51.49% CAGR versus MCRB at -42.51%.
Is KYNB or MCRB more profitable?: KYNB runs the higher net margin — KYNB at 3967.77% versus MCRB at -1192.94%.

Go deeper

Full KYNB analysis Full MCRB analysis Interactive comparison tool

Dig into the metrics

Kyntra Bio ROE Seres Therapeutics ROE Kyntra Bio operating margin Seres Therapeutics operating margin Kyntra Bio revenue growth Seres Therapeutics revenue growth Kyntra Bio free cash flow Seres Therapeutics free cash flow

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified October 6, 2026.