Outlook Therapeutics Stock Price History
NASDAQ: OTLKHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
0.5989+0.0349 (+6.19%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
OTLK price history at a glance
The price history for Outlook Therapeutics (OTLK) on this page begins on June 13, 2016, when the stock closed at $632.00; it most recently closed at $0.5989 on October 5, 2026. The highest price in this record is $878.40, reached on August 29, 2016; the latest close is 99.9% below that peak. Across the 9 complete calendar years in the table, OTLK finished higher in 2 and lower in 7. Its best year was 2020 (+27.5%) and its worst was 2019 (-79.1%).
Over roughly 10 years the share price changed -99.9%, a -49.1% compound annual price return (excluding dividends). In the last 12 months alone, OTLK has lost 50.1%. 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 2016
- $878.40
- Date of high
- Aug 29, 2016
- Low since 2016
- $0.161
- Date of low
- Mar 23, 2026
- 52-week high
- $2.54
- 52-week low
- $0.161
- IPO year
- 2016
- Last close
- $0.5989
OTLK returns
1 week
+0.99%
1 month
-7.00%
3 months
-61.85%
6 months
+140.52%
Year to date
-62.09%
1 year
-50.09%
3 years
-90.79%
5 years
-98.58%
OTLK price return, excluding dividends.
OTLK annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 0.5989 | -9.26% |
| 2025 | 0.66 | -70.54% |
| 2024 | 2.24 | -71.57% |
| 2023 | 7.88 | -63.52% |
| 2022 | 21.60 | -20.59% |
| 2021 | 27.20 | +4.62% |
| 2020 | 26.00 | +27.45% |
| 2019 | 20.40 | -79.10% |
| 2018 | 97.60 | -53.08% |
| 2017 | 208.00 | -56.81% |
| 2016* | 481.60 | -23.80% |
* Partial year: the record begins after the start of 2016; return measured from the first available close.
2026 return is year to date.
OTLK daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 0.5675 | 0.605 | 0.5557 | 0.5989 | +6.19% | |
| 0.58 | 0.5898 | 0.5506 | 0.564 | -4.41% | |
| 0.5957 | 0.6066 | 0.58 | 0.59 | +3.15% | |
| 0.60 | 0.62 | 0.572 | 0.572 | -4.03% | |
| 0.60 | 0.61 | 0.58 | 0.596 | +0.51% | |
| 0.59 | 0.607 | 0.572 | 0.593 | +3.13% | |
| 0.58 | 0.59 | 0.531 | 0.575 | +0.17% | |
| 0.626 | 0.635 | 0.573 | 0.574 | -8.31% | |
| 0.63 | 0.636 | 0.612 | 0.626 | +0.81% | |
| 0.63 | 0.638 | 0.601 | 0.621 | -2.97% | |
| 0.655 | 0.671 | 0.636 | 0.64 | -2.44% | |
| 0.66 | 0.68 | 0.641 | 0.656 | -0.91% | |
| 0.705 | 0.705 | 0.662 | 0.662 | -4.89% | |
| 0.686 | 0.714 | 0.677 | 0.696 | +1.46% | |
| 0.685 | 0.695 | 0.653 | 0.686 | +5.05% | |
| 0.70 | 0.70 | 0.653 | 0.653 | -4.11% | |
| 0.695 | 0.71 | 0.678 | 0.681 | +0.59% | |
| 0.675 | 0.736 | 0.662 | 0.677 | +0.59% | |
| 0.64 | 0.682 | 0.625 | 0.673 | +5.49% | |
| 0.654 | 0.669 | 0.632 | 0.638 | -3.33% | |
| 0.67 | 0.68 | 0.65 | 0.66 | -0.15% | |
| 0.635 | 0.67 | 0.626 | 0.661 | +2.64% | |
| 0.64 | 0.645 | 0.621 | 0.644 | +0.47% | |
| 0.658 | 0.67 | 0.633 | 0.641 | -3.90% | |
| 0.66 | 0.696 | 0.645 | 0.667 | +2.77% | |
| 0.622 | 0.665 | 0.617 | 0.649 | +3.67% | |
| 0.62 | 0.64 | 0.604 | 0.626 | +0.48% | |
| 0.63 | 0.641 | 0.615 | 0.623 | -1.58% | |
| 0.631 | 0.664 | 0.628 | 0.633 | -1.86% | |
| 0.65 | 0.659 | 0.619 | 0.645 | +0.62% | |
| 0.643 | 0.675 | 0.636 | 0.641 | +2.89% | |
| 0.64 | 0.659 | 0.623 | 0.623 | -2.66% | |
| 0.615 | 0.685 | 0.612 | 0.64 | +5.09% | |
| 0.622 | 0.641 | 0.59 | 0.609 | -5.87% | |
| 0.676 | 0.706 | 0.64 | 0.647 | -4.29% | |
| 0.69 | 0.716 | 0.665 | 0.676 | -2.03% | |
| 0.708 | 0.718 | 0.671 | 0.69 | -1.43% | |
| 0.672 | 0.704 | 0.602 | 0.70 | +4.17% | |
| 0.795 | 0.798 | 0.67 | 0.672 | -11.11% | |
| 0.844 | 0.844 | 0.712 | 0.756 | -14.96% | |
| 0.769 | 0.892 | 0.76 | 0.889 | -19.18% | |
| 1.12 | 1.18 | 1.07 | 1.10 | -2.65% | |
| 1.15 | 1.16 | 1.09 | 1.13 | -1.74% | |
| 1.00 | 1.18 | 0.995 | 1.15 | +12.75% | |
| 0.986 | 1.04 | 0.95 | 1.02 | +4.83% | |
| 1.00 | 1.06 | 0.973 | 0.973 | -5.53% | |
| 0.95 | 1.04 | 0.941 | 1.03 | +7.29% | |
| 0.91 | 0.998 | 0.84 | 0.96 | +5.15% | |
| 0.965 | 0.975 | 0.90 | 0.913 | -6.55% | |
| 1.01 | 1.04 | 0.928 | 0.977 | -6.06% | |
| 1.02 | 1.06 | 0.965 | 1.04 | +4.00% | |
| 0.885 | 1.12 | 0.883 | 1.00 | +10.62% | |
| 1.01 | 1.02 | 0.82 | 0.904 | -15.12% | |
| 1.42 | 1.42 | 1.04 | 1.07 | -24.20% | |
| 1.35 | 1.75 | 1.12 | 1.41 | +6.44% | |
| 1.32 | 1.35 | 1.26 | 1.32 | -1.49% | |
| 1.41 | 1.41 | 1.30 | 1.34 | -5.63% | |
| 1.42 | 1.46 | 1.38 | 1.42 | +2.90% | |
| 1.42 | 1.52 | 1.37 | 1.38 | -0.72% | |
| 1.40 | 1.44 | 1.32 | 1.39 | -4.79% | |
| 1.56 | 1.56 | 1.45 | 1.46 | -6.41% | |
| 1.74 | 1.77 | 1.56 | 1.56 | -9.83% | |
| 1.55 | 1.82 | 1.54 | 1.73 | +11.61% | |
| 1.57 | 1.64 | 1.49 | 1.55 | -1.27% | |
| 1.67 | 1.68 | 1.55 | 1.57 | -6.55% | |
| 1.68 | 1.87 | 1.64 | 1.68 | -0.59% | |
| 1.42 | 1.70 | 1.40 | 1.69 | +15.75% | |
| 1.38 | 1.52 | 1.37 | 1.46 | +2.82% | |
| 1.47 | 1.49 | 1.30 | 1.42 | -2.07% | |
| 1.50 | 1.63 | 1.43 | 1.45 | -1.36% | |
| 1.55 | 1.58 | 1.42 | 1.47 | -7.55% | |
| 1.69 | 1.72 | 1.54 | 1.59 | -5.92% | |
| 1.72 | 1.77 | 1.62 | 1.69 | -1.17% | |
| 1.55 | 1.79 | 1.53 | 1.71 | +6.21% | |
| 1.66 | 1.72 | 1.54 | 1.61 | -4.17% | |
| 1.74 | 1.77 | 1.60 | 1.68 | -1.18% | |
| 1.74 | 1.87 | 1.69 | 1.70 | -7.10% | |
| 1.58 | 1.88 | 1.47 | 1.83 | +15.82% | |
| 1.62 | 1.66 | 1.40 | 1.58 | -4.24% | |
| 1.59 | 1.70 | 1.50 | 1.65 | +5.10% | |
| 1.20 | 1.58 | 1.17 | 1.57 | +35.34% | |
| 1.32 | 1.40 | 1.13 | 1.16 | -4.92% | |
| 1.30 | 1.31 | 1.12 | 1.22 | +10.91% | |
| 0.928 | 1.17 | 0.928 | 1.10 | +23.60% | |
| 0.70 | 0.905 | 0.697 | 0.89 | +26.24% | |
| 0.715 | 0.75 | 0.675 | 0.705 | -2.35% | |
| 0.79 | 0.79 | 0.703 | 0.722 | -7.08% | |
| 0.78 | 0.848 | 0.732 | 0.777 | -2.26% | |
| 0.79 | 0.889 | 0.79 | 0.795 | -1.85% | |
| 0.801 | 0.824 | 0.735 | 0.81 | -0.49% | |
| 0.90 | 0.914 | 0.799 | 0.814 | -3.44% | |
| 0.745 | 0.943 | 0.72 | 0.843 | +15.48% | |
| 0.75 | 0.82 | 0.685 | 0.73 | -1.35% | |
| 0.649 | 0.812 | 0.61 | 0.74 | +26.28% | |
| 0.422 | 0.597 | 0.395 | 0.586 | +46.50% | |
| 0.465 | 0.507 | 0.375 | 0.40 | +29.03% | |
| 0.35 | 0.37 | 0.309 | 0.31 | -6.91% | |
| 0.27 | 0.351 | 0.259 | 0.333 | +21.98% | |
| 0.228 | 0.275 | 0.22 | 0.273 | +19.74% | |
| 0.229 | 0.23 | 0.215 | 0.228 | -0.44% | |
| 0.23 | 0.232 | 0.216 | 0.229 | +0.44% | |
| 0.235 | 0.236 | 0.218 | 0.228 | -2.15% | |
| 0.236 | 0.236 | 0.215 | 0.233 | +1.30% | |
| 0.235 | 0.248 | 0.23 | 0.23 | -5.35% | |
| 0.244 | 0.244 | 0.227 | 0.243 | -2.02% | |
| 0.225 | 0.253 | 0.217 | 0.248 | +12.22% | |
| 0.22 | 0.228 | 0.22 | 0.221 | +2.31% | |
| 0.23 | 0.231 | 0.207 | 0.216 | -6.90% | |
| 0.249 | 0.249 | 0.222 | 0.232 | -4.13% | |
| 0.259 | 0.26 | 0.238 | 0.242 | -7.98% | |
| 0.26 | 0.276 | 0.254 | 0.263 | +0.38% | |
| 0.258 | 0.271 | 0.244 | 0.262 | +4.80% | |
| 0.25 | 0.257 | 0.243 | 0.25 | -2.34% | |
| 0.264 | 0.268 | 0.25 | 0.256 | -2.29% | |
| 0.285 | 0.291 | 0.254 | 0.262 | -8.07% | |
| 0.316 | 0.319 | 0.285 | 0.285 | -9.52% | |
| 0.294 | 0.32 | 0.28 | 0.315 | +9.76% | |
| 0.285 | 0.295 | 0.27 | 0.287 | -1.03% | |
| 0.29 | 0.314 | 0.283 | 0.29 | -9.09% | |
| 0.393 | 0.393 | 0.30 | 0.319 | -13.78% | |
| 0.344 | 0.388 | 0.332 | 0.37 | +19.74% | |
| 0.271 | 0.315 | 0.271 | 0.309 | +14.44% | |
| 0.285 | 0.286 | 0.261 | 0.27 | -1.10% | |
| 0.247 | 0.276 | 0.247 | 0.273 | +7.91% | |
| 0.26 | 0.265 | 0.242 | 0.253 | -0.39% | |
| 0.24 | 0.265 | 0.225 | 0.254 | +2.01% | |
| 0.23 | 0.25 | 0.223 | 0.249 | +12.16% | |
| 0.25 | 0.254 | 0.21 | 0.222 | -11.20% | |
| 0.224 | 0.287 | 0.211 | 0.25 | +17.37% | |
| 0.211 | 0.216 | 0.18 | 0.213 | +5.97% | |
| 0.214 | 0.222 | 0.20 | 0.201 | -8.22% | |
| 0.20 | 0.219 | 0.194 | 0.219 | +4.29% | |
| 0.202 | 0.213 | 0.20 | 0.21 | +1.94% | |
| 0.203 | 0.218 | 0.196 | 0.206 | +2.49% | |
| 0.212 | 0.212 | 0.189 | 0.201 | -3.37% | |
| 0.211 | 0.22 | 0.201 | 0.208 | -0.95% | |
| 0.209 | 0.232 | 0.199 | 0.21 | +0.96% | |
| 0.20 | 0.222 | 0.198 | 0.208 | +5.05% | |
| 0.218 | 0.218 | 0.161 | 0.198 | -38.13% | |
| 0.347 | 0.348 | 0.32 | 0.32 | -8.83% | |
| 0.338 | 0.37 | 0.335 | 0.351 | +4.46% | |
| 0.359 | 0.37 | 0.29 | 0.336 | -4.00% | |
| 0.39 | 0.395 | 0.35 | 0.35 | -11.62% | |
| 0.379 | 0.40 | 0.36 | 0.396 | +12.50% | |
| 0.40 | 0.405 | 0.342 | 0.352 | -10.66% | |
| 0.428 | 0.428 | 0.39 | 0.394 | -6.41% | |
| 0.42 | 0.433 | 0.41 | 0.421 | -3.00% | |
| 0.448 | 0.453 | 0.426 | 0.434 | -2.47% | |
| 0.432 | 0.461 | 0.432 | 0.445 | -0.67% | |
| 0.41 | 0.449 | 0.406 | 0.448 | +8.21% | |
| 0.432 | 0.434 | 0.40 | 0.414 | -4.17% | |
| 0.435 | 0.454 | 0.42 | 0.432 | -1.59% | |
| 0.422 | 0.447 | 0.416 | 0.439 | +4.03% | |
| 0.407 | 0.434 | 0.404 | 0.422 | 0.00% | |
| 0.416 | 0.444 | 0.41 | 0.422 | +0.24% | |
| 0.42 | 0.451 | 0.42 | 0.421 | -2.77% | |
| 0.45 | 0.455 | 0.43 | 0.433 | -1.59% | |
| 0.423 | 0.462 | 0.423 | 0.44 | +7.06% | |
| 0.406 | 0.43 | 0.402 | 0.411 | +2.75% | |
| 0.40 | 0.436 | 0.40 | 0.40 | -3.15% | |
| 0.437 | 0.448 | 0.41 | 0.413 | -5.06% | |
| 0.413 | 0.451 | 0.412 | 0.435 | +6.10% | |
| 0.427 | 0.427 | 0.39 | 0.41 | -2.84% | |
| 0.471 | 0.49 | 0.42 | 0.422 | -13.88% | |
| 0.451 | 0.525 | 0.44 | 0.49 | +11.11% | |
| 0.48 | 0.487 | 0.439 | 0.441 | -5.97% | |
| 0.435 | 0.469 | 0.416 | 0.469 | +11.40% | |
| 0.404 | 0.46 | 0.397 | 0.421 | +3.95% | |
| 0.42 | 0.429 | 0.395 | 0.405 | -5.59% | |
| 0.399 | 0.443 | 0.38 | 0.429 | +10.00% | |
| 0.397 | 0.42 | 0.39 | 0.39 | -2.50% | |
| 0.445 | 0.446 | 0.397 | 0.40 | -6.98% | |
| 0.44 | 0.455 | 0.43 | 0.43 | -2.27% | |
| 0.43 | 0.458 | 0.421 | 0.44 | 0.00% | |
| 0.462 | 0.462 | 0.43 | 0.44 | -4.35% | |
| 0.445 | 0.477 | 0.42 | 0.46 | +2.45% | |
| 0.495 | 0.497 | 0.446 | 0.449 | -9.66% | |
| 0.51 | 0.518 | 0.481 | 0.497 | -2.17% | |
| 0.52 | 0.527 | 0.491 | 0.508 | +0.99% | |
| 0.527 | 0.53 | 0.502 | 0.503 | -1.37% | |
| 0.51 | 0.541 | 0.502 | 0.51 | +0.79% | |
| 0.531 | 0.533 | 0.50 | 0.506 | -2.69% | |
| 0.52 | 0.54 | 0.50 | 0.52 | -4.76% | |
| 0.539 | 0.559 | 0.522 | 0.546 | +4.60% | |
| 0.537 | 0.537 | 0.51 | 0.522 | -3.33% | |
| 0.56 | 0.564 | 0.54 | 0.54 | -3.74% | |
| 0.576 | 0.577 | 0.546 | 0.561 | -2.26% | |
| 0.593 | 0.60 | 0.56 | 0.574 | -2.71% | |
| 0.613 | 0.646 | 0.583 | 0.59 | -2.32% | |
| 0.561 | 0.646 | 0.56 | 0.604 | +2.37% | |
| 0.544 | 0.626 | 0.522 | 0.59 | +11.32% | |
| 0.55 | 0.588 | 0.512 | 0.53 | -2.39% | |
| 0.683 | 0.683 | 0.501 | 0.543 | -17.73% | |
| 0.641 | 0.72 | 0.604 | 0.66 | -58.23% | |
| 1.62 | 1.83 | 1.52 | 1.58 | -15.28% | |
| 2.00 | 2.03 | 1.82 | 1.87 | -5.81% | |
| 1.85 | 1.98 | 1.78 | 1.98 | +8.79% | |
| 1.89 | 1.95 | 1.79 | 1.82 | -0.55% | |
| 1.85 | 1.88 | 1.77 | 1.83 | -1.61% | |
| 1.82 | 1.92 | 1.79 | 1.86 | +1.09% | |
| 2.03 | 2.05 | 1.68 | 1.84 | -8.46% | |
| 2.05 | 2.08 | 1.79 | 2.01 | -2.90% | |
| 2.29 | 2.37 | 1.84 | 2.07 | -8.81% | |
| 2.49 | 2.54 | 2.24 | 2.27 | -8.10% | |
| 2.16 | 2.49 | 2.16 | 2.47 | +13.82% | |
| 2.00 | 2.26 | 1.98 | 2.17 | +9.60% | |
| 2.01 | 2.03 | 1.91 | 1.98 | -1.00% | |
| 2.08 | 2.10 | 1.97 | 2.00 | -4.31% | |
| 2.09 | 2.13 | 2.03 | 2.09 | +0.48% | |
| 2.01 | 2.13 | 1.99 | 2.08 | +4.00% | |
| 2.07 | 2.09 | 1.96 | 2.00 | -2.44% | |
| 2.08 | 2.09 | 1.95 | 2.05 | -0.49% | |
| 1.97 | 2.10 | 1.93 | 2.06 | +4.57% | |
| 1.86 | 2.02 | 1.85 | 1.97 | +7.65% | |
| 1.88 | 1.95 | 1.80 | 1.83 | -1.61% | |
| 1.78 | 1.88 | 1.75 | 1.86 | +3.91% | |
| 1.73 | 1.83 | 1.71 | 1.79 | +6.55% | |
| 1.62 | 1.71 | 1.51 | 1.68 | +5.00% | |
| 1.84 | 1.84 | 1.59 | 1.60 | -11.11% | |
| 1.92 | 2.02 | 1.79 | 1.80 | -4.26% | |
| 1.89 | 1.93 | 1.76 | 1.88 | 0.00% | |
| 1.99 | 2.09 | 1.85 | 1.88 | -4.08% | |
| 1.93 | 1.99 | 1.84 | 1.96 | +2.62% | |
| 1.80 | 2.01 | 1.68 | 1.91 | +7.91% | |
| 1.59 | 1.96 | 1.59 | 1.77 | +12.74% | |
| 1.50 | 1.71 | 1.50 | 1.57 | +6.80% | |
| 1.46 | 1.83 | 1.36 | 1.47 | +14.84% | |
| 1.25 | 1.29 | 1.21 | 1.28 | +3.23% | |
| 1.25 | 1.27 | 1.22 | 1.24 | -1.59% | |
| 1.22 | 1.29 | 1.21 | 1.26 | +5.88% | |
| 1.18 | 1.21 | 1.13 | 1.19 | +0.85% | |
| 1.26 | 1.26 | 1.16 | 1.18 | -5.60% | |
| 1.21 | 1.29 | 1.21 | 1.25 | +3.31% | |
| 1.27 | 1.30 | 1.21 | 1.21 | -6.92% | |
| 1.30 | 1.31 | 1.23 | 1.30 | +3.17% | |
| 1.23 | 1.30 | 1.22 | 1.26 | +1.61% | |
| 1.29 | 1.30 | 1.23 | 1.24 | -3.13% | |
| 1.31 | 1.33 | 1.26 | 1.28 | -3.76% | |
| 1.34 | 1.37 | 1.32 | 1.33 | -0.75% | |
| 1.42 | 1.43 | 1.32 | 1.34 | -3.60% | |
| 1.32 | 1.42 | 1.30 | 1.39 | +6.92% | |
| 1.34 | 1.34 | 1.28 | 1.30 | -2.99% | |
| 1.40 | 1.42 | 1.30 | 1.34 | -4.96% | |
| 1.41 | 1.47 | 1.38 | 1.41 | -4.73% | |
| 1.35 | 1.48 | 1.35 | 1.48 | +12.98% | |
| 1.32 | 1.39 | 1.27 | 1.31 | -2.24% | |
| 1.44 | 1.44 | 1.31 | 1.34 | -8.22% | |
| 1.53 | 1.54 | 1.40 | 1.46 | +1.39% | |
| 1.32 | 1.45 | 1.30 | 1.44 | +9.92% | |
| 1.22 | 1.41 | 1.22 | 1.31 | +9.17% | |
| 1.23 | 1.29 | 1.18 | 1.20 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the OTLK chart for longer ranges.