RLYB Stock — Rallybio Corporation

Rallybio Corporation (RLYB)

Updated October 16, 2026.

RLYB is a Stock. Total return is -85.6% over the past 5.2 years, 171.4 points behind SPY at 85.8%.

Rallybio Corporation is a clinical-stage biotechnology company developing therapies for severe and rare diseases, including a complement C5 inhibitor in phase 1 trials for complement dysregulation disorders and a preclinical antibody for severe anemia with iron overload; the company also operates strategic partnerships with AbCellera and Johnson & Johnson. The company does not currently have an established distribution schedule. Rallybio appeals to investors seeking exposure to early-stage biotech innovation with tolerance for clinical development risk and no expectation of near-term income.

RLYB performance versus SPY

Price and return data through 2026-10-16.

Total return is -85.6% over the past 5.2 years, 171.4 points behind SPY at 85.8%. Over the past year its total return — price change plus distributions reinvested — is 267.4%. Its deepest 1-year drawdown was 31.1%.

RLYB key facts

Asset type

Stock

Asset class

Equity

Inception date

07/29/2021

Distribution frequency

None

Last close

$16.28 (as of 2026-10-16)

Market cap

$86,488,868

Average volume

37141.0

Beta

-0.714

Payout ratio

0.0%

P/E ratio

2.03

EPS

$8.03

How Dividend Vision calculates yield and returns

Distribution rate (the posted rate) uses calculation basis unavailable. Issuer rates can use a different denominator and date, including ex-date NAV. Trailing-12-month yield is the sum of split-adjusted cash distributions with ex-dates in the last 12 months, divided by the published price. It lags a recent raise or cut. Total return uses split-adjusted close with distributions reinvested on the ex-dividend date (a modeling convention, not the cash-settlement date) from the first stored bar on or after inception through the latest bar, compared with the same window on the benchmark. That is the security's total return, not your personal gain/loss.

Yield and safety methodology · Distribution rate methodology · Distribution Safety Score methodology

Sources and review

Primary sources: prices and distributions from Dividend Vision, derived from vendor EOD data.

Reviewed by Bert Sweet, CEO and Co-owner of Dividend Vision. Methodology: Distribution Safety Score.

RLYB risks and drawbacks

Total return has trailed SPY over the available window. The deepest 1-year drawdown on record here is 31.1%.

Who may consider RLYB — and who may not

It is a weaker fit for investors who need monthly cash flow (RLYB does not currently distribute); investors whose main goal is matching SPY total return. This is educational context, not a recommendation to buy or sell.

More on RLYB

• All tickers starting with R

Tagged: Healthcare.

Frequently asked questions