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Rallybio Corp Stock Price & Performance

RLYB · NASDAQ NMS - GLOBAL MARKET
$15.82 USD -0.78% (−$0.125) today

Live market data · Last updated: July 4, 2026 at 6:47 p.m. (ET). Prices shown in USD and for information only — not investment advice.

Rallybio Corp (RLYB) is trading at $15.82 USD, down -0.78% today. It trades on NASDAQ NMS - GLOBAL MARKET in the Biotechnology sector. Market capitalization is approximately $83.82M USD.

$15.82Price (USD)
-0.78%Day change
$15.70$15.99Day range
$15.76Open
$15.94Previous close
$83.82MMarket cap
5.30MShares outstanding
NASDAQ NMS - GLOBAL MARKETExchange

How we think about Rallybio Corp at Evermore

Rallybio Corp (RLYB) operates in the Biotechnology sector and trades on NASDAQ NMS - GLOBAL MARKET. A single company — no matter how strong — carries concentration risk that a diversified portfolio does not. We generally frame any individual stock as one holding within a broader plan, sized so that a bad quarter for one company can't derail your goals.

How Rallybio Corp is taxed for Canadian investors

For a Canadian holding a US-listed stock like RLYB, two taxes matter. Capital gains on a sale are 50% taxable in Canada (see capital gains tax). Dividends paid by a US company face a 15% US withholding tax under the Canada–US tax treaty (with a valid W-8BEN on file). Prices here are quoted in USD, so currency movements between the USD and the Canadian dollar also affect your real return.

Can you hold Rallybio Corp in a TFSA or RRSP?

Yes — US-listed stocks are qualified investments for both. But the accounts are not equal for US dividends: inside an RRSP, US dividend withholding tax is waived under the treaty, while inside a TFSA the 15% withholding still applies and can't be recovered. For US dividend-payers, the RRSP is usually the more tax-efficient home.

Common Questions

What is Rallybio Corp's (RLYB) stock price today?

Rallybio Corp is trading at approximately $15.82 USD, down -0.78% on the day. Quotes update on a short cache and are for information only.

What is Rallybio Corp's market capitalization?

Rallybio Corp has a market capitalization of roughly $83.82M USD.

How are US stocks like RLYB taxed for Canadians?

Capital gains are 50% taxable in Canada. US dividends face a 15% US withholding tax under the Canada–US treaty (with a W-8BEN). The withholding is waived inside an RRSP but not inside a TFSA.

Can I hold RLYB in my TFSA or RRSP?

Yes — US-listed stocks are qualified investments for both. For US dividend-paying stocks, an RRSP is usually more tax-efficient because it avoids the 15% dividend withholding that a TFSA cannot recover.

Is Rallybio Corp a good investment?

That depends on your plan, time horizon, and risk tolerance — and on how a single stock fits alongside your other holdings. Speak with a CFP® or CIM® before making a concentrated bet on any one company.

Talk to a CFP® or CIM® at Evermore

Independent, fiduciary-style advice from Burlington, Ontario. Serving Canadian families with $500k+ in investable assets.

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