Rallybio Corporation (RLYB)

NASDAQ

$16.48

$+0.07

(+0.43%)

Regular Market

Rallybio Corporation (RLYB) Live Price Chart

Last updated: ⁦2026-10-21 14:33:40⁩. Prices reflect the latest regular market data. Stock price data is sourced from Massive.

Summary

Rallybio Corporation (RLYB) operates in the PHARMACEUTICAL PREPARATIONS sector and is listed on NASDAQ. The stock is currently priced at $16.48, with a market capitalization of $86.86M and a P/E ratio of 1.91. Over the past 52 weeks, its price has ranged from $3.67 to $17.57. This page covers its latest market performance, valuation, price trends and company information.

Key Market Data

Market Cap	$86.86M
Open	$16.41
Day's High	$206.24
Day's Low	$1.76
Previous Close	$16.38
Volume	306.00
Average Volume	15.60K
P/E Ratio	1.91
52-Week High	$17.57
52-Week Low	$3.67
Dividend Yield	--
Earnings Date	--

Rallybio Corporation (RLYB) Stock Price Today

Rallybio Corporation (RLYB) is currently trading at $16.48 as of 2026-10-21 14:33:00, up 0.58% ($0.10) from the previous close of $16.38

During today's regular trading session, RLYB has traded between $1.76 and $206.24, with a trading volume of 306.00 shares. The current price is near the lower end of today's range.

Rallybio Corporation (RLYB) 7-Day Stock Price Change

Over the past seven days, Rallybio Corporation (RLYB) moved from $16.79 to $16.48, representing a decline of 1.88% ($0.31).

The stock traded between $16.20 and $17.08 during the period. The latest price is near the lower end of the 7-day range, indicating moderate downward.

The average daily volume was 23.92 thousand shares, up versus the previous seven-day period, indicating higher trading activity.

RLYB 52-Week Price Position

Position in Range: 92.1%

52W Low$3.67

52W High$17.57

RLYB is currently trading at $16.48, placing it 92.1% of the way from its 52-week low of $3.67 to its 52-week high of $17.57. This percentage reflects the stock's relative position within its 52-week trading range, not its valuation or future performance.

What is Rallybio Corporation (RLYB)?

Rallybio Corp is a clinical-stage biotechnology company comprised of experienced biopharma industry leaders with extensive research, development, and rare disease expertise with a mission to develop and commercialize life-transforming therapies for patients with severe and rare diseases. The company's program, RLYB116, is a differentiated complement component 5 (C5) inhibitor with the potential to treat diseases of complement dysregulation. The Company manages its operations as a single segment for the purposes of allocating resources, assessing performance, and making operating decisions. Rallybio's pipeline also includes RLYB332, a preclinical long-acting matriptase-2 antibody for the treatment of diseases of iron overload.

Rallybio Corporation Information

Industry	PHARMACEUTICAL PREPARATIONS
Employees	7
Exchange	NASDAQ
Company Website	https://www.rallybio.com

How to Buy Rallybio Corporation (RLYB) Stock on MEXC

Eligible investors can buy real shares of Rallybio Corporation (RLYB) through MEXC RealStocks. Follow these three steps to open a RealStocks account, transfer USDT, and place a US stock order.

Step 1: Open and Verify Your RealStocks Account

Log in to the MEXC App, go to Trade → RealStocks, and select Open Account. Complete the required account-opening and identity verification process with MEXC's partner licensed broker.

Step 2: Transfer USDT to Your RealStocks Account

Go to Wallets → RealStocks and transfer USDT from your Spot Account to your RealStocks Account. RealStocks are quoted in USD, while account funding can be completed using USDT.

Step 3: Search for RLYB and Place Your Order

Open the RealStocks trading page and search for RLYB. Select a market or limit order, enter the price and quantity as required, review the order details, and submit your order. Once filled, the corresponding real shares will be held in your RealStocks Account.

Frequently Asked Questions (FAQ)

1.What is Rallybio Corporation (RLYB) stock price today?

Rallybio Corporation (RLYB) is currently trading at $ 16.48, up 0.58% ($0.10) from the previous close of $ 16.38. Intraday prices update in real time during regular trading hours.

2.Is RLYB stock going up or down today?

As of 2026-10-21 14:33:00, RLYB is trading at $ 16.48, up 0.58% ($0.10) from its previous close of $ 16.38. The stock has traded between $ 1.76 and $ 206.24 during today’s regular session. Past price movements do not guarantee future results.

3.What is RLYB pre-market price?

As of 2026-10-21 14:33:00, RLYB is trading at $ 16.33 in pre-market trading, down 0.30% ($0.05) from the previous close of $ 16.38. Pre-market prices reflect trading activity before the regular session opens and may experience lower liquidity and higher volatility.

4.What is RLYB after-hours price?

As of 2026-10-21 14:33:00, RLYB is trading at $ 16.41 in after-hours trading, up 0.15% ($0.03) from the regular-session close of $ 16.38. After-hours prices may differ from the regular session’s opening price due to lower liquidity and wider bid-ask spreads.

5.Is RLYB stock trading now?

RLYB trades on the NASDAQ exchange during regular hours, Monday through Friday, 9:30 AM to 4:00 PM ET, excluding public holidays. Pre-market and after-hours trading are also available through select brokers outside these hours.

6.Where does RLYB sit relative to its 52-week high and low?

Over the past 52 weeks, RLYB has traded between a low of $ 3.67 and a high of $ 17.57. At $ 16.48, the stock is positioned 92.1% of the way from its 52-week low to its 52-week high, providing context for its current price within the one-year trading range.

7.What sector is Rallybio Corporation in?

Rallybio Corporation (RLYB) operates in the PHARMACEUTICAL PREPARATIONS sector. Sector classification helps investors compare it with companies exposed to similar market trends and competitive conditions.

8.What is Rallybio Corporation's market capitalization and where is it listed?

Rallybio Corporation is listed on the NASDAQ exchange with a market capitalization of $ 86.86M. Market cap reflects the total market value of all outstanding shares and is commonly used to classify stocks by size.

9.How is RLYB valued in terms of P/E ratio and EPS?

RLYB trades at a P/E ratio of 1.91, based on trailing-twelve-month EPS of $ 8.57. P/E ratio compares the stock price to earnings per share and is a common starting point for assessing valuation relative to peers.

10.Does Rallybio Corporation pay a dividend?

Rallybio Corporation pays an indicated annual cash dividend of $ 0.00 per share, with a current dividend yield of 0.00% based on the latest share price. Dividend policies are subject to change at the board's discretion.