MetaCap

Korro Bio (KRRO) vs Atrium Therapeutics (RNA)

Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 8, 2026.

Summary

Korro Bio is the larger company by market cap ($155.8 million vs $141.3 million), about 1.1 times the size.

Summary generated from market data by MetaCap's automated system. Methodology

Relative performance

KRRO-13.52%RNA-46.24%
+25%-13%-50%
Feb 27, 20261 yearOct 7, 2026
KRRO-13.52%RNA-46.24%
+23%-13%-50%
Feb 23, 20265 yearsOct 5, 2026

Percent change in share price from the first common trading day shown; excludes dividends.

Head-to-head

KRRO versus RNA key metrics
MetricKRRORNA
Share price$10.58$8.26
Market cap$155.80M$141.29M
1-day change+0.86%+4.16%
YTD return+30.96%—
1-year return-78.49%—
5-year return-97.05%—
EPS (TTM)$-9.88$-5.44
Dividend yield0.00%0.00%
Annual dividend$0.00$0.00
52-week high$55.89$16.77
52-week low$5.20$7.63
Distance from 52-week high-81.07%-50.75%
Analyst consensusstrong_buynone
Avg. price target upside+90.93%+202.66%
Average volume148.80K253.00K
Shares outstanding14.73M17.11M
Employees57—
SectorHealth CareHealth Care
IndustryBiotechnology: Pharmaceutical PreparationsBiotechnology: Pharmaceutical Preparations

Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.

About Korro Bio

KRRO stock →

Korro Bio, Inc., a biopharmaceutical company, engages in the discovering, developing, and commercializing of genetic medicines based on editing RNA for the treatment of rare and highly prevalent diseases in the United States. The company's lead product candidate is KRRO-121 for the treatment for hyperammonemia.

Health Care · Biotechnology: Pharmaceutical Preparations · 57 employees

About Atrium Therapeutics

RNA stock →

Atrium Therapeutics, Inc., a biopharmaceutical company, focuses on delivering ribonucleic acid (RNA) therapeutics to the heart to transform the care for people living with cardiomyopathies. The company's development stage product candidates include ATR 1072, a siRNA-based therapy targeting PRKAG2 for the treatment of PRKAG2 syndrome; and ATR 1086, a siRNA-based therapy targeting PLN for the treatment of PLN cardiomyopathy.

Health Care · Biotechnology: Pharmaceutical Preparations

KRRO vs RNA FAQ

Which is bigger, Korro Bio or Atrium Therapeutics?

Korro Bio (KRRO) is larger, with a market capitalization of $155.80M compared with $141.29M for Atrium Therapeutics (RNA).

Are Korro Bio and Atrium Therapeutics in the same industry?

Yes. Both are classified in the Biotechnology: Pharmaceutical Preparations industry within the Health Care sector.

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