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Rallybio (RLYB) Stock Chart & Stock Price History

Rallybio logo
$16.60 -0.40 (-2.35%)
Closing price 08/20/2026 04:00 PM Eastern
Extended Trading
$16.65 +0.05 (+0.30%)
As of 08/20/2026 05:53 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Rallybio Stock Price Performance

The Rallybio (RLYB) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 249.33%, with a year-to-date return of 202.43%. In the past month, the stock has decreased 1.83%, reflecting recent market activity.

As of the latest close, Rallybio traded at $16.60 with a market cap of $88.15 million and volume of 15,262 shares. Five years ago, the stock traded at a split-adjusted price of $101.52, representing a 83.65% decrease over that period. At the time, it had a market cap of $395.93 million and a volume of 8,090 shares.

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5 Day
Performance
-2.30%
1 Month
Performance
-1.83%
3 Month
Performance
+7.93%
Year-To-Date
Performance
+202.43%
1 Year
Performance
+249.33%
5 Year
Performance
-83.65%

RLYB Stock Chart for Friday, August, 21, 2026

RLYB Chart by TradingView

Rallybio Stock Price History

Export
DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
08/20/2026$17.00$16.60
-2.35%		$16.98$16.5115,262 shs$88.15 million
08/19/2026$16.77$17.00
+1.37%		$17.20$16.8617,774 shs$90.29 million
08/18/2026$17.00$16.77
-1.35%		$17.14$16.7310,256 shs$89.05 million
08/17/2026$16.99$17.00
+0.06%		$17.29$16.6617,127 shs$90.27 million
08/14/2026$16.96$16.99
+0.18%		$17.23$16.6712,921 shs$90.22 million
08/13/2026$16.59$16.96
+2.23%		$17.35$16.7574,312 shs$90.06 million
08/12/2026$16.38$16.59
+1.28%		$16.80$16.3317,665 shs$88.09 million
08/11/2026$16.61$16.38
-1.38%		$16.81$16.348,781 shs$86.98 million
08/10/2026$16.16$16.61
+2.78%		$16.98$16.2323,318 shs$88.20 million
08/07/2026$16.19$16.16
-0.19%		$16.51$16.0212,304 shs$85.65 million
08/06/2026$16.14$16.19
+0.31%		$16.65$15.9527,117 shs$85.81 million
08/05/2026$15.96$16.14
+1.13%		$16.26$15.9734,348 shs$85.54 million
08/04/2026$15.95$15.96
+0.06%		$16.13$15.8544,900 shs$84.59 million
08/03/2026$15.93$15.95
+0.13%		$16.23$15.8819,601 shs$84.40 million
07/31/2026$16.07$15.93
-0.87%		$16.06$15.8618,104 shs$84.40 million
07/30/2026$15.96$16.07
+0.69%		$16.28$15.9012,047 shs$85.17 million
07/29/2026$16.16$15.96
-1.24%		$16.20$15.9516,361 shs$84.59 million
07/28/2026$16.31$16.16
-0.92%		$16.27$15.9025,320 shs$85.62 million
07/27/2026$16.31$16.31$16.48$16.0616,069 shs$86.44 million
07/24/2026$16.39$16.31
-0.49%		$16.64$16.0041,589 shs$86.44 million
07/23/2026$16.62$16.39
-1.38%		$16.98$16.3930,491 shs$86.87 million
07/22/2026$16.91$16.62
-1.71%		$16.93$16.4935,451 shs$88.05 million
07/21/2026$16.71$16.91
+1.20%		$16.96$16.2725,753 shs$89.62 million
07/20/2026$16.42$16.71
+1.77%		$17.09$16.2151,655 shs$88.56 million
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This page (NASDAQ:RLYB) was last updated on 8/20/2026 by MarketBeat.com Staff.
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