Rallybio Stock Price History
NASDAQ: RLYBHealth CareBiotechnology: Pharmaceutical PreparationsUSD
17.02+0.03 (+0.18%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
RLYB price history at a glance
The price history for Rallybio (RLYB) on this page begins on July 26, 2021, when the stock closed at $136.00; it most recently closed at $17.02 on October 5, 2026. The highest price in this record is $206.24, reached on July 26, 2021; the latest close is 91.7% below that peak. Across the 4 complete calendar years in the table, RLYB finished higher in 0 and lower in 4. Its best year was 2025 (-30.0%) and its worst was 2023 (-63.6%).
Over roughly 5 years the share price changed -87.5%, a -33.0% compound annual price return (excluding dividends). In the last 12 months alone, RLYB has gained 284.7%. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.
Summary generated from market data by MetaCap's automated system. Methodology
Key price levels
- High since 2021
- $206.24
- Date of high
- Jul 26, 2021
- Low since 2021
- $1.76
- Date of low
- Apr 7, 2025
- 52-week high
- $17.57
- 52-week low
- $3.67
- IPO year
- 2021
- Last close
- $17.02
RLYB returns
1 week
-0.35%
1 month
+0.29%
3 months
+8.20%
6 months
+101.66%
Year to date
+210.13%
1 year
+284.72%
3 years
-42.19%
5 years
-86.29%
RLYB price return, excluding dividends.
RLYB annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 17.02 | +200.92% |
| 2025 | 5.66 | -30.00% |
| 2024 | 8.08 | -57.74% |
| 2023 | 19.12 | -63.62% |
| 2022 | 52.56 | -31.13% |
| 2021* | 76.32 | -43.88% |
* Partial year: the record begins after the start of 2021; return measured from the first available close.
2026 return is year to date.
RLYB daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 17.05 | 17.22 | 16.95 | 17.02 | +0.18% | |
| 16.96 | 17.04 | 16.82 | 16.99 | +0.35% | |
| 16.91 | 17.04 | 16.81 | 16.93 | -0.88% | |
| 16.87 | 17.08 | 16.80 | 17.08 | +1.07% | |
| 16.99 | 17.12 | 16.82 | 16.90 | -1.05% | |
| 16.69 | 17.22 | 16.69 | 17.08 | +1.91% | |
| 17.16 | 17.16 | 16.76 | 16.76 | -2.56% | |
| 17.24 | 17.24 | 16.93 | 17.20 | -0.12% | |
| 16.90 | 17.24 | 16.61 | 17.22 | +1.00% | |
| 16.55 | 17.05 | 16.55 | 17.05 | +2.59% | |
| 16.80 | 17.07 | 16.62 | 16.62 | +0.06% | |
| 16.74 | 16.75 | 16.61 | 16.61 | -1.48% | |
| 16.66 | 16.86 | 16.61 | 16.86 | -0.35% | |
| 16.85 | 17.11 | 16.72 | 16.92 | -0.06% | |
| 17.14 | 17.14 | 16.61 | 16.93 | -1.51% | |
| 17.16 | 17.20 | 16.92 | 17.19 | +0.17% | |
| 17.18 | 17.18 | 17.13 | 17.16 | +0.41% | |
| 17.24 | 17.24 | 16.71 | 17.09 | -0.75% | |
| 16.49 | 17.22 | 16.45 | 17.22 | +4.30% | |
| 16.98 | 16.98 | 16.50 | 16.51 | -2.16% | |
| 16.75 | 16.88 | 16.70 | 16.88 | +0.75% | |
| 16.80 | 17.06 | 16.71 | 16.75 | -1.30% | |
| 16.52 | 17.05 | 16.50 | 16.97 | +2.17% | |
| 16.97 | 16.97 | 16.61 | 16.61 | -1.86% | |
| 16.75 | 17.01 | 16.75 | 16.93 | +0.30% | |
| 16.66 | 17.09 | 16.66 | 16.88 | -0.38% | |
| 16.65 | 17.26 | 16.65 | 16.94 | +1.50% | |
| 17.05 | 17.05 | 16.67 | 16.69 | -0.60% | |
| 16.68 | 17.05 | 16.50 | 16.79 | -0.12% | |
| 16.51 | 17.12 | 16.51 | 16.81 | +0.30% | |
| 17.18 | 17.23 | 16.76 | 16.76 | -0.71% | |
| 16.95 | 17.03 | 16.75 | 16.88 | -0.03% | |
| 16.81 | 17.03 | 16.64 | 16.89 | +0.51% | |
| 16.54 | 16.86 | 16.54 | 16.80 | -0.18% | |
| 16.76 | 16.95 | 16.55 | 16.83 | +1.39% | |
| 16.78 | 16.98 | 16.51 | 16.60 | -2.35% | |
| 17.12 | 17.20 | 16.86 | 17.00 | +1.37% | |
| 16.87 | 17.14 | 16.73 | 16.77 | -1.35% | |
| 17.00 | 17.29 | 16.66 | 17.00 | +0.06% | |
| 17.01 | 17.23 | 16.67 | 16.99 | +0.18% | |
| 16.75 | 17.35 | 16.75 | 16.96 | +2.23% | |
| 16.39 | 16.80 | 16.33 | 16.59 | +1.28% | |
| 16.81 | 16.81 | 16.34 | 16.38 | -1.38% | |
| 16.25 | 16.98 | 16.23 | 16.61 | +2.78% | |
| 16.11 | 16.51 | 16.02 | 16.16 | -0.19% | |
| 16.28 | 16.65 | 15.95 | 16.19 | +0.31% | |
| 16.10 | 16.26 | 15.97 | 16.14 | +1.13% | |
| 15.91 | 16.13 | 15.85 | 15.96 | +0.06% | |
| 16.23 | 16.23 | 15.88 | 15.95 | +0.13% | |
| 15.91 | 16.06 | 15.86 | 15.93 | -0.87% | |
| 15.91 | 16.28 | 15.90 | 16.07 | +0.69% | |
| 16.20 | 16.20 | 15.95 | 15.96 | -1.21% | |
| 16.19 | 16.27 | 15.90 | 16.16 | -0.95% | |
| 16.47 | 16.48 | 16.06 | 16.31 | 0.00% | |
| 16.46 | 16.64 | 16.00 | 16.31 | -0.49% | |
| 16.47 | 16.98 | 16.39 | 16.39 | -1.38% | |
| 16.93 | 16.93 | 16.49 | 16.62 | -1.71% | |
| 16.74 | 16.96 | 16.27 | 16.91 | +1.20% | |
| 16.49 | 17.09 | 16.21 | 16.71 | +1.77% | |
| 15.86 | 16.42 | 15.85 | 16.42 | +2.88% | |
| 16.22 | 16.50 | 15.73 | 15.96 | -1.05% | |
| 16.12 | 16.30 | 15.94 | 16.13 | +0.75% | |
| 16.00 | 16.40 | 15.82 | 16.01 | +0.76% | |
| 16.02 | 16.15 | 15.75 | 15.89 | +1.02% | |
| 15.75 | 15.94 | 15.67 | 15.73 | -0.63% | |
| 15.68 | 15.96 | 15.62 | 15.83 | +0.96% | |
| 15.62 | 15.74 | 15.62 | 15.68 | +0.06% | |
| 15.86 | 15.86 | 15.61 | 15.67 | -0.32% | |
| 15.73 | 15.95 | 15.70 | 15.72 | -0.60% | |
| 15.76 | 15.99 | 15.70 | 15.82 | -0.78% | |
| 16.25 | 16.25 | 15.79 | 15.94 | -0.38% | |
| 16.17 | 16.22 | 15.87 | 16.00 | -0.37% | |
| 16.00 | 16.41 | 15.98 | 16.06 | +0.37% | |
| 15.85 | 16.50 | 15.68 | 16.00 | +1.85% | |
| 15.81 | 16.22 | 15.59 | 15.71 | -1.32% | |
| 15.85 | 15.93 | 15.62 | 15.92 | +1.40% | |
| 15.80 | 15.91 | 15.63 | 15.70 | -1.44% | |
| 16.19 | 16.19 | 15.80 | 15.93 | -0.25% | |
| 16.02 | 16.23 | 15.79 | 15.97 | +0.31% | |
| 16.06 | 16.15 | 15.76 | 15.92 | +0.13% | |
| 15.83 | 16.00 | 15.77 | 15.90 | 0.00% | |
| 15.86 | 16.45 | 15.84 | 15.90 | -0.13% | |
| 16.03 | 16.25 | 15.90 | 15.92 | 0.00% | |
| 15.76 | 16.17 | 15.76 | 15.92 | -0.13% | |
| 15.77 | 16.30 | 15.77 | 15.94 | +0.19% | |
| 16.10 | 16.50 | 15.80 | 15.91 | 0.00% | |
| 15.98 | 16.42 | 15.90 | 15.91 | -0.25% | |
| 16.10 | 16.13 | 15.85 | 15.95 | -1.54% | |
| 16.21 | 16.57 | 16.05 | 16.20 | +0.81% | |
| 16.16 | 16.25 | 15.86 | 16.07 | -0.99% | |
| 16.64 | 17.20 | 15.80 | 16.23 | -3.79% | |
| 16.80 | 17.57 | 16.41 | 16.87 | +16.67% | |
| 14.50 | 14.73 | 14.21 | 14.46 | -0.41% | |
| 14.51 | 14.69 | 14.36 | 14.52 | -0.07% | |
| 14.63 | 15.15 | 14.50 | 14.53 | -1.16% | |
| 15.74 | 15.86 | 14.67 | 14.70 | -7.43% | |
| 15.85 | 16.00 | 15.46 | 15.88 | +3.25% | |
| 14.68 | 15.75 | 14.17 | 15.38 | +5.49% | |
| 14.25 | 14.71 | 14.05 | 14.58 | +2.75% | |
| 14.18 | 14.29 | 13.80 | 14.19 | +0.64% | |
| 14.47 | 14.47 | 13.88 | 14.10 | -1.40% | |
| 14.16 | 14.50 | 13.80 | 14.30 | +0.63% | |
| 14.38 | 14.41 | 13.95 | 14.21 | -0.98% | |
| 14.05 | 14.35 | 13.61 | 14.35 | +2.28% | |
| 14.00 | 14.24 | 13.68 | 14.03 | +0.21% | |
| 14.22 | 14.45 | 13.74 | 14.00 | -2.64% | |
| 14.60 | 14.67 | 14.10 | 14.38 | -1.91% | |
| 15.15 | 15.15 | 14.38 | 14.66 | +0.69% | |
| 14.05 | 14.59 | 13.86 | 14.56 | +1.96% | |
| 14.50 | 15.31 | 13.87 | 14.28 | +1.13% | |
| 14.02 | 14.60 | 13.24 | 14.12 | +50.05% | |
| 9.13 | 9.41 | 8.95 | 9.41 | +4.79% | |
| 8.90 | 9.16 | 8.70 | 8.98 | +1.13% | |
| 8.76 | 9.10 | 8.50 | 8.88 | +0.91% | |
| 8.79 | 9.07 | 8.68 | 8.80 | +0.23% | |
| 8.84 | 9.24 | 8.67 | 8.78 | +1.74% | |
| 8.50 | 8.66 | 8.38 | 8.63 | +1.53% | |
| 8.50 | 8.81 | 8.40 | 8.50 | -0.58% | |
| 8.29 | 8.59 | 8.29 | 8.55 | +3.14% | |
| 8.26 | 8.47 | 8.20 | 8.29 | 0.00% | |
| 8.15 | 8.35 | 8.15 | 8.29 | +0.85% | |
| 8.26 | 8.28 | 8.11 | 8.22 | -1.32% | |
| 8.24 | 8.40 | 7.95 | 8.33 | +0.60% | |
| 8.26 | 8.36 | 8.17 | 8.28 | +0.36% | |
| 8.32 | 8.49 | 8.22 | 8.25 | -0.60% | |
| 8.39 | 8.47 | 8.09 | 8.30 | -1.66% | |
| 8.18 | 8.49 | 8.00 | 8.44 | +2.80% | |
| 8.16 | 8.28 | 8.08 | 8.21 | -0.12% | |
| 8.09 | 8.40 | 8.00 | 8.22 | +2.11% | |
| 8.09 | 8.42 | 8.02 | 8.05 | -0.86% | |
| 8.31 | 8.50 | 8.00 | 8.12 | -3.68% | |
| 8.24 | 8.45 | 8.20 | 8.43 | +0.36% | |
| 8.99 | 9.25 | 8.13 | 8.40 | -6.35% | |
| 8.40 | 9.03 | 8.10 | 8.97 | +11.57% | |
| 8.35 | 8.37 | 7.90 | 8.04 | -2.19% | |
| 8.38 | 8.70 | 8.04 | 8.22 | -2.61% | |
| 8.43 | 8.71 | 8.34 | 8.44 | -2.14% | |
| 8.74 | 9.00 | 8.48 | 8.63 | -0.52% | |
| 9.00 | 9.13 | 8.63 | 8.67 | -4.83% | |
| 8.87 | 9.31 | 8.80 | 9.11 | +2.71% | |
| 9.00 | 9.47 | 8.87 | 8.87 | -2.42% | |
| 9.11 | 9.50 | 9.00 | 9.09 | -2.88% | |
| 9.55 | 9.84 | 9.10 | 9.36 | -3.01% | |
| 9.22 | 9.82 | 8.92 | 9.65 | +2.55% | |
| 9.59 | 9.95 | 8.86 | 9.41 | -0.95% | |
| 9.58 | 9.96 | 9.30 | 9.50 | -1.04% | |
| 9.79 | 10.15 | 9.28 | 9.60 | -3.81% | |
| 9.93 | 10.19 | 9.59 | 9.98 | -0.20% | |
| 10.80 | 11.11 | 9.75 | 10.00 | -7.11% | |
| 10.80 | 11.29 | 10.67 | 10.77 | -1.33% | |
| 10.54 | 11.09 | 10.51 | 10.91 | +1.02% | |
| 10.49 | 10.95 | 10.35 | 10.80 | +2.81% | |
| 10.65 | 11.44 | 10.50 | 10.51 | -1.87% | |
| 10.79 | 11.49 | 10.30 | 10.71 | -2.42% | |
| 9.62 | 11.20 | 9.35 | 10.97 | +45.49% | |
| 6.78 | 7.78 | 6.66 | 7.54 | +10.88% | |
| 5.80 | 6.81 | 5.80 | 6.80 | +16.84% | |
| 5.80 | 6.19 | 5.74 | 5.82 | -0.17% | |
| 5.45 | 6.17 | 5.08 | 5.83 | +6.00% | |
| 5.06 | 5.63 | 5.06 | 5.50 | +8.70% | |
| 4.80 | 5.45 | 4.80 | 5.06 | +6.53% | |
| 4.40 | 4.96 | 4.39 | 4.75 | +6.74% | |
| 4.30 | 4.52 | 4.25 | 4.45 | +2.77% | |
| 4.74 | 4.93 | 3.67 | 4.33 | -10.17% | |
| 4.72 | 4.98 | 4.72 | 4.82 | +1.05% | |
| 4.70 | 4.89 | 4.70 | 4.77 | +0.21% | |
| 4.77 | 4.88 | 4.70 | 4.76 | -0.83% | |
| 4.70 | 5.00 | 4.70 | 4.80 | +2.13% | |
| 4.59 | 4.91 | 4.50 | 4.70 | -1.05% | |
| 4.70 | 5.37 | 4.41 | 4.75 | +2.19% | |
| 4.60 | 4.87 | 4.52 | 4.65 | +1.04% | |
| 4.80 | 4.80 | 4.47 | 4.60 | -8.15% | |
| 5.28 | 5.28 | 4.88 | 5.01 | -4.57% | |
| 5.44 | 5.44 | 5.21 | 5.25 | +2.18% | |
| 5.28 | 5.63 | 4.90 | 5.14 | -3.89% | |
| 5.25 | 5.64 | 5.03 | 5.34 | +3.89% | |
| 5.01 | 5.36 | 4.96 | 5.14 | +0.47% | |
| 5.22 | 5.60 | 4.83 | 5.12 | -3.32% | |
| 5.54 | 5.60 | 5.29 | 5.30 | -1.49% | |
| 5.68 | 5.80 | 4.67 | 5.38 | -0.15% | |
| 5.41 | 5.80 | 5.31 | 5.38 | -1.61% | |
| 5.10 | 5.47 | 4.80 | 5.47 | +11.22% | |
| 5.12 | 5.17 | 4.61 | 4.92 | -6.39% | |
| 5.42 | 5.46 | 5.10 | 5.26 | -2.81% | |
| 5.59 | 5.68 | 5.36 | 5.41 | -1.31% | |
| 5.75 | 5.92 | 5.36 | 5.48 | -2.84% | |
| 5.84 | 5.85 | 5.54 | 5.64 | -2.89% | |
| 5.57 | 6.00 | 5.52 | 5.81 | +2.25% | |
| 5.84 | 5.84 | 5.64 | 5.68 | -3.79% | |
| 5.72 | 5.91 | 5.62 | 5.90 | +3.07% | |
| 5.41 | 5.92 | 5.41 | 5.73 | +5.45% | |
| 5.47 | 5.79 | 5.41 | 5.43 | 0.00% | |
| 5.68 | 5.68 | 5.32 | 5.43 | -3.96% | |
| 5.52 | 5.72 | 5.49 | 5.66 | +3.06% | |
| 5.21 | 5.51 | 5.21 | 5.49 | +1.18% | |
| 5.50 | 5.58 | 5.29 | 5.42 | -3.69% | |
| 5.26 | 5.64 | 5.26 | 5.63 | +2.33% | |
| 5.74 | 5.78 | 5.13 | 5.50 | -6.01% | |
| 6.06 | 6.06 | 5.60 | 5.86 | -3.05% | |
| 6.23 | 6.23 | 5.80 | 6.04 | -3.70% | |
| 6.32 | 6.39 | 5.84 | 6.27 | -0.13% | |
| 6.22 | 6.32 | 6.08 | 6.28 | +0.90% | |
| 5.92 | 6.36 | 5.88 | 6.22 | +8.36% | |
| 6.24 | 6.40 | 5.68 | 5.74 | -6.51% | |
| 6.16 | 6.16 | 5.76 | 6.14 | -0.13% | |
| 5.84 | 6.24 | 5.80 | 6.15 | +5.05% | |
| 5.94 | 5.94 | 5.77 | 5.86 | -1.35% | |
| 5.93 | 6.16 | 5.79 | 5.94 | -3.64% | |
| 5.80 | 6.40 | 5.78 | 6.16 | +6.50% | |
| 5.41 | 5.84 | 5.40 | 5.78 | +6.48% | |
| 5.04 | 5.46 | 5.04 | 5.43 | +2.57% | |
| 5.32 | 5.46 | 5.13 | 5.30 | -0.75% | |
| 5.28 | 5.46 | 5.20 | 5.34 | +1.06% | |
| 5.28 | 5.36 | 5.16 | 5.28 | +1.54% | |
| 5.20 | 5.26 | 5.17 | 5.20 | +0.31% | |
| 5.21 | 5.30 | 5.10 | 5.18 | -0.46% | |
| 5.10 | 5.36 | 5.10 | 5.21 | +1.24% | |
| 5.13 | 5.42 | 5.13 | 5.14 | -0.92% | |
| 5.12 | 5.27 | 4.97 | 5.19 | +2.04% | |
| 5.04 | 5.28 | 4.90 | 5.09 | +1.44% | |
| 4.88 | 5.20 | 4.86 | 5.02 | +2.79% | |
| 5.04 | 5.12 | 4.72 | 4.88 | -2.24% | |
| 4.96 | 5.04 | 4.81 | 4.99 | -0.32% | |
| 4.88 | 5.04 | 4.80 | 5.01 | +1.46% | |
| 5.12 | 5.27 | 4.74 | 4.94 | -3.59% | |
| 5.18 | 5.18 | 5.04 | 5.12 | -2.44% | |
| 5.06 | 5.58 | 4.96 | 5.25 | -6.02% | |
| 5.47 | 5.74 | 5.34 | 5.58 | -0.99% | |
| 5.20 | 5.76 | 5.08 | 5.64 | +8.46% | |
| 5.05 | 5.30 | 5.01 | 5.20 | +4.00% | |
| 4.96 | 5.12 | 4.85 | 5.00 | -2.19% | |
| 5.00 | 5.22 | 4.89 | 5.11 | +2.24% | |
| 4.99 | 5.09 | 4.90 | 5.00 | -0.79% | |
| 5.28 | 5.38 | 4.95 | 5.04 | -5.69% | |
| 5.58 | 5.66 | 5.16 | 5.34 | -4.16% | |
| 5.68 | 5.72 | 5.29 | 5.58 | 0.00% | |
| 4.94 | 5.76 | 4.80 | 5.58 | +15.21% | |
| 4.93 | 4.98 | 4.80 | 4.84 | -2.10% | |
| 5.19 | 5.19 | 4.81 | 4.94 | -1.12% | |
| 4.90 | 5.44 | 4.90 | 5.00 | +2.46% | |
| 4.75 | 5.00 | 4.64 | 4.88 | +1.67% | |
| 4.45 | 4.88 | 4.32 | 4.80 | +6.95% | |
| 4.61 | 4.61 | 4.41 | 4.49 | +0.18% | |
| 4.35 | 4.55 | 4.34 | 4.48 | +1.45% | |
| 4.29 | 4.55 | 4.28 | 4.42 | +3.18% | |
| 4.30 | 4.40 | 4.23 | 4.28 | -3.43% | |
| 4.26 | 4.55 | 4.15 | 4.43 | +3.36% | |
| 4.32 | 4.48 | 4.17 | 4.29 | +0.19% | |
| 4.10 | 4.32 | 3.97 | 4.28 | +1.33% | |
| 4.01 | 4.26 | 3.92 | 4.22 | +3.33% | |
| 4.40 | 4.51 | 4.00 | 4.09 | -7.59% | |
| 4.56 | 4.72 | 4.42 | 4.42 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the RLYB chart for longer ranges.