Cardio Diagnostics Holdings, Inc. (CDIO) vs enVVeno Medical Corporation (NVNO)

A side-by-side comparison of Cardio Diagnostics Holdings, Inc. and enVVeno Medical Corporation 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.

CDIO

Cardio Diagnostics Holdings, Inc.

$6M

$2.00HealthcareDelayed quote: Oct 6, 2026, 4:00 PM EDT

NVNO

enVVeno Medical Corporation

$6M

$8.20HealthcareDelayed quote: Oct 6, 2026, 4:00 PM EDT

Total return — CDIO vs NVNO

growth of $100 · dividends reinvested · last 5y

CDIO -99.3% (-62.9%/yr)NVNO -96.6% (-49.1%/yr)NVNO compounded faster over this window

CDIO NVNO

CDIO vs NVNO: by the numbers

•CDIO is the larger company ($6M vs $6M market cap).
•Both run net losses; NVNO's is the smaller (0.00% vs -44771.83% net margin).

Metrics side by side

Valuation

Metric	CDIO	NVNO
P/S ratio	409.62	N/A
P/B ratio	0.80	0.28

Profitability

Metric	CDIO	NVNO
Gross margin	100.00%	0.00%
Operating margin	-43737.46%	0.00%
Net margin	-44771.83%	0.00%
ROE	-87.12%	-76.07%
ROIC	-82.84%	-80.65%

Growth (annualized)

Metric	CDIO	NVNO
Total return CAGR (5Y)	N/A	-52.99%

Go deeper

Full CDIO analysis Full NVNO analysis Interactive comparison tool

Dig into the metrics

Cardio Diagnostics ROE enVVeno Medical ROE Cardio Diagnostics operating margin enVVeno Medical operating margin Cardio Diagnostics revenue growth enVVeno Medical revenue growth Cardio Diagnostics free cash flow enVVeno Medical 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.