How to Buy Rallybio Stock

Rallybio Corp

Rallybio Corporation, a clinical-stage biotechnology company, engages in discovering, developing, manufacturing, and delivering therapies that enhance the lives of patients suffering from severe and rare diseases.

Rallybio stock last closed at $0.70, up 15.21% from the previous day, and has decreased 31.67% in one year. It has underperformed other stocks in the Biotechnology industry by 0.08 percentage points. Rallybio stock is currently +216.82% from its 52-week low of $0.22, and -43.79% from its 52-week high of $1.24.

At the moment, there are 41.79M shares of RLYB outstanding. The market capitalization of RLYB is $29.13M. In the last 24 hours, 1.11M RLYB shares were traded.

How to Buy Rallybio Stock

Wondering how to invest in Rallybio stock? Here's how.

  1. Choose where to buy Rallybio stock: You need to decide on an online brokerage, but don't worry - we've sifted through dozens of stock brokerages and apps to help you choose where to buy Rallybio stock.
  2. Create a brokerage account: Sign up for 0% fee trading with the highest-rated brokerage we've identified.
  3. Fund your brokerage account: Pick your method of payment and add your information.
  4. Evaluate Rallybio stock: The Rallybio ticker symbol is RLYB. Is Rallybio stock a good investment? Should you buy shares of RLYB? How do RLYB's underlying business fundamentals look? Do top analysts think Rallybio is a good buy? Why has RLYB's stock price moved recently? (Hint: Our stock research website can help you understand if RLYB is a good stock to buy).
  5. Place your RLYB purchase: Decide if you will purchase RLYB shares at the current market price or use a limit order to buy RLYB shares at a specific price.
  6. Track your investment in RLYB: Create a watchlist to key updates about your new investment in Rallybio stock.

Step 1: Choose where to buy Rallybio stock

You will need an online brokerage account to access the NASDAQ market and buy RLYB stock.

A brokerage account is an investment account that allows you to buy and sell a number of financial instruments, including stocks, bonds, mutual funds, and ETFs.

Our favorite brokerage: eToro

Based on our research, eToro is the best brokerage. eToro gives you:

  • You can invest in stocks with 0% commissions: Invest without paying trading commissions.
  • Buy fractional shares: Even if you don't have the money to buy a full share, you can still invest in the stock.
  • Access to world financial markets: From Technology to Utilities, New York to Tokyo (for US users, only US stocks are available) — you can fill your portfolio with stocks from the world's leading stock exchanges.
  • Social investing: eToro boasts a community of more than 20 million users around the world. Talk to, learn from, and copy the crypto trades of top investors.
  • Security: eToro is a regulated and licensed fintech leader.
  • Buy other assets: Such as ETFs and cryptos.

Get $10 towards your stock purchase by signing up for an account with eToro today. This offer is only for US users.

Open eToro Account
eToro securities trading is offered by eToro USA Securities, Inc. (“the BD”), member of FINRA and SIPC. Cryptocurrency is offered by eToro USA LLC (“the MSB”) (NMLS: 1769299) and is not FDIC or SIPC insured. Investing involves risk, and content is provided for educational purposes only, does not imply a recommendation, and is not a guarantee of future performance. https://www.wallstreetzen.com is not an affiliate and may be compensated if you access certain products or services offered by the MSB and/or the BD.

Step 2: Create a brokerage account

Now that you've selected your brokerage, it's time to fill out some personal information so you are able to buy RLYB stock today.

How to Start a New Account on eToro

  1. Click here to get started.
    eToro is a multi-asset investment platform. The value of your investments may go up or down. Your capital is at risk.
  2. Provide your personal info to start a new trading account.
  1. Submit your info by hitting the "Create Account" button.
  2. Get started with eToro today
    eToro is a multi-asset investment platform. The value of your investments may go up or down. Your capital is at risk.

Step 3: Fund your brokerage account

Now that you've filled out your info on a mobile trading app, you need to deposit funds:

Watch the walkthrough below to see the process of depositing money into your new investment account.

Get started with eToro today
eToro is a multi-asset investment platform. The value of your investments may go up or down. Your capital is at risk.

Step 4: Evaluate Rallybio stock

Once you have figured out the best place to buy Rallybio stock, it's absolutely critical to evaluate their stock before you invest, so you truly wrap your head around the risk and upside.

Rallybio shares quick numbers

RLYB Price
$0.70
1w %
16.17%
1y %
-31.67%
5y %
N/A
P/E
-0.74x
P/B
0.63x
P/S
41x
PEG
N/A
Revenue
$761.00k
Earnings
-$41.65M
Fore. Rev. Growth
N/A
Fore. Earn. Growth
N/A
Market Cap
$29.13M
Next Earnings
Nov 6, 2025
Next Dividend
N/A

Fundamentals of Rallybio

WallStreetZen was designed to help part-time investors perform better fundamental analysis quickly.

You can view all of the due diligence checks on RLYB's stock page.

Is RLYB stock undervalued or overvalued?

You can use many financial metrics, analyses, models, and charts to gauge RLYB's intrinsic value.

Using relative valuations measures:

  • RLYB could be undervalued based on its P/B ratio of 0.63x, relative to Biotechnology industry P/B ratio of 4.97x

You can do more valuation research on RLYB's stock here.

Is RLYB a healthy company?

Pros:

  • There are more short-term assets than long-term liabilities on the RLYB balance sheet.
  • RLYB has cash burn of 41991000. It has enough cash and short-term investments to cover this for at least one year.
  • RLYB has a low debt to equity ratio of 0.11.
  • RLYB has $45.75M in cash and short term investments. This is sufficient to cover its annual cash burn of $41.99M.
  • There are more short-term assets than short-term liabilities on the RLYB balance sheet.

Cons:

  • RLYB profit margin has gone up by 192.36 percentage points in the past year, but the company is still unprofitable.

You can dig deeper into what analysts are projecting on the Rallybio stock forecast page.

RLYB Technical Indicators

SMA10
0.6
SMA20
0.57
SMA50
0.58
SMA100
0.51
SMA200
0.53
MACD
0.02
MACD Signal
0.01
MACD Histogram
0.01
RSI
70.32
Stochastic %K
72.63
Stochastic %D
71.57
StochRSI %K
88.84
StochRSI %D
91.59

RLYB Performance Metrics

Last year, RLYB revenue was $761.00k. During the past 1 years, RLYB's revenue has gone up by 154.52% per year. This was faster than the Biotechnology industry average of 70.04%.

Dig into RLYB's earnings and revenue performance here.

Latest Insiders Trades at RLYB

In the last 12 months, insiders at RLYB have not bought or sold any shares.

Learn more about who owns RLYB shares here.

Does RLYB provide a stable income stream?

No, Rallybio doesn't provide an income stream by paying out dividends.

What others are saying about RLYB

One of the reasons eToro is our favorite brokerage is because of its social trading community.

Click below to find out what other traders have to say.

Step 5: Place your RLYB purchase

There are two primary order types:

  • Market order: A market order is an order to buy or sell a stock at the best price on the market.
    Market orders are generally the easiest way to buy.
  • Limit order: A limit order lets you buy or sell a security at a specific price (or better).
    If you want to be sure you're buying or selling at an exact price, place a limit order.

Hit the Open Trade button and eToro will place the order.

If you want more assistance buying stocks on eToro, watch the helpful video below:

Open eToro Account

Step 6: Track your investment in RLYB

Now that you own some RLYB shares, you'll want to stay up-to-date on your company.

Make a watchlist to track the most important metrics related to your RLYB stock.

RLYB Feed

How to Buy Stock in Rallybio

To summarize, here are the 6 steps for buying Rallybio stock:

  1. Choose where to buy Rallybio stock
  2. Create a brokerage account
  3. Fund your brokerage account
  4. Evaluate Rallybio stock
  5. Place your RLYB purchase
  6. Track your investment in RLYB

If you need a brokerage account, eToro is our favorite venue.

Get Started with eToro Today
eToro is a multi-asset investment platform. The value of your investments may go up or down. Your capital is at risk.

If you would like to get the latest news on your new investment in Rallybio, add RLYB to your watchlist by clicking the button below.

NASDAQ: RLYB
$0.70+0.09 (+15.21%)
Updated Oct 30, 2025
Open eToro Account
Your capital is at risk.
NASDAQ: RLYB
$0.70+0.09 (+15.21%)
Updated Oct 30, 2025
Open eToro Account
Your capital is at risk.

FAQ

How much does it cost to buy one Rallybio share?

As of Oct 30, 2025, it costs $0.70 to buy one share of Rallybio stock.

Remember, eToro's fractional share buying allows you to buy partial shares of stocks and ETFs. Even if you only have $0.35, you can buy 0.5 shares of RLYB.

Get Started with eToro Today
eToro is a multi-asset investment platform. The value of your investments may go up or down. Your capital is at risk.

What is the best way to buy Rallybio stock?

One way to place an order for Rallybio stock is with a brokerage account.
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.