Tenax Therapeutics Stock Price History
NASDAQ: TENXHealth CareBiotechnology: Pharmaceutical PreparationsUSD
1.87+0.01 (+0.54%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
TENX price history at a glance
The price history for Tenax Therapeutics (TENX) on this page begins on April 4, 1994, when the stock closed at $14,400,000.00; it most recently closed at $1.87 on October 5, 2026. The highest price in this record is $21,600,000.00, reached on February 28, 2000; the latest close is 100.0% below that peak. Across the 31 complete calendar years in the table, TENX finished higher in 11 and lower in 20. Its best year was 2003 (+280.0%) and its worst was 2022 (-89.3%).
Over roughly 33 years the share price changed -100.0%, a -38.6% compound annual price return (excluding dividends). In the last 12 months alone, TENX has lost 75.9%. 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 1994
- $21,600,000.00
- Date of high
- Feb 28, 2000
- Low since 1994
- $1.31
- Date of low
- Aug 10, 2026
- 52-week high
- $19.40
- 52-week low
- $1.31
- Last close
- $1.87
TENX returns
1 week
-5.56%
1 month
-12.21%
3 months
-89.34%
6 months
-87.04%
Year to date
-84.66%
1 year
-75.93%
3 years
-92.58%
5 years
-99.93%
TENX price return, excluding dividends.
TENX annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 1.87 | -83.08% |
| 2025 | 11.05 | +77.65% |
| 2024 | 6.22 | -71.73% |
| 2023 | 22.00 | -87.61% |
| 2022 | 177.60 | -89.33% |
| 2021 | 1,664.00 | -44.09% |
| 2020 | 2,976.00 | +31.91% |
| 2019 | 2,256.00 | +17.50% |
| 2018 | 1,920.00 | -87.76% |
| 2017 | 15,680.00 | -74.87% |
| 2016 | 62,400.00 | -40.55% |
| 2015 | 104,960.00 | -13.68% |
| 2014 | 121,600.00 | -20.17% |
| 2013 | 152,320.00 | -67.84% |
| 2012 | 473,600.00 | -48.25% |
| 2011 | 915,200.00 | -25.52% |
| 2010 | 1,228,800.00 | -67.89% |
| 2009 | 3,827,200.00 | +59.47% |
| 2008 | 2,400,000.00 | -20.63% |
| 2007 | 3,024,000.00 | +85.29% |
| 2006 | 1,632,000.00 | +25.93% |
| 2005 | 1,296,000.00 | -44.90% |
| 2004 | 2,352,000.00 | -67.76% |
| 2003 | 7,296,000.00 | +280.00% |
| 2002 | 1,920,000.00 | +17.65% |
| 2001 | 1,632,000.00 | -32.00% |
| 2000 | 2,400,000.00 | +78.57% |
| 1999 | 1,344,000.00 | +27.27% |
| 1998 | 1,056,000.00 | -43.59% |
| 1997 | 1,872,000.00 | +14.71% |
| 1996 | 1,632,000.00 | -54.67% |
| 1995 | 3,600,000.00 | -57.14% |
| 1994* | 8,400,000.00 | -41.67% |
* Partial year: the record begins after the start of 1994; return measured from the first available close.
2026 return is year to date.
TENX daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 1.86 | 1.91 | 1.80 | 1.87 | +0.54% | |
| 1.91 | 1.91 | 1.83 | 1.86 | -2.62% | |
| 1.92 | 1.95 | 1.89 | 1.91 | -1.04% | |
| 1.96 | 2.00 | 1.90 | 1.93 | -1.53% | |
| 1.98 | 1.99 | 1.88 | 1.96 | -1.01% | |
| 1.96 | 2.00 | 1.92 | 1.98 | +2.59% | |
| 1.91 | 1.96 | 1.87 | 1.93 | +2.12% | |
| 1.84 | 1.92 | 1.80 | 1.89 | +2.72% | |
| 1.83 | 1.89 | 1.81 | 1.84 | -0.54% | |
| 1.81 | 1.88 | 1.80 | 1.85 | +2.21% | |
| 1.88 | 1.93 | 1.81 | 1.81 | -4.23% | |
| 1.89 | 1.92 | 1.80 | 1.89 | -0.53% | |
| 1.91 | 1.94 | 1.86 | 1.90 | -2.06% | |
| 1.88 | 1.95 | 1.88 | 1.94 | +3.19% | |
| 1.88 | 1.92 | 1.86 | 1.88 | -1.05% | |
| 1.92 | 1.97 | 1.85 | 1.90 | +2.15% | |
| 1.89 | 1.94 | 1.81 | 1.86 | +2.20% | |
| 1.88 | 1.93 | 1.82 | 1.82 | -0.55% | |
| 1.85 | 1.87 | 1.81 | 1.83 | -1.61% | |
| 1.84 | 1.89 | 1.83 | 1.86 | 0.00% | |
| 1.99 | 2.00 | 1.86 | 1.86 | -4.62% | |
| 2.13 | 2.14 | 1.95 | 1.95 | -8.45% | |
| 2.06 | 2.22 | 2.04 | 2.13 | +7.58% | |
| 1.95 | 2.18 | 1.94 | 1.98 | +2.06% | |
| 1.82 | 1.96 | 1.80 | 1.94 | +8.99% | |
| 1.99 | 2.04 | 1.77 | 1.78 | -3.78% | |
| 1.81 | 1.85 | 1.77 | 1.85 | +2.78% | |
| 1.79 | 1.85 | 1.77 | 1.80 | -2.17% | |
| 2.11 | 2.11 | 1.73 | 1.84 | -13.62% | |
| 2.16 | 2.29 | 2.12 | 2.13 | -2.74% | |
| 2.13 | 2.23 | 2.10 | 2.19 | +3.30% | |
| 2.29 | 2.38 | 2.12 | 2.12 | -8.62% | |
| 2.08 | 2.43 | 2.08 | 2.32 | +25.41% | |
| 1.70 | 1.90 | 1.69 | 1.85 | +5.71% | |
| 1.81 | 1.84 | 1.73 | 1.75 | -1.69% | |
| 1.86 | 1.88 | 1.76 | 1.78 | -6.32% | |
| 1.75 | 1.96 | 1.70 | 1.90 | +11.76% | |
| 1.68 | 1.73 | 1.59 | 1.70 | -0.58% | |
| 1.76 | 1.93 | 1.70 | 1.71 | -5.00% | |
| 1.77 | 1.87 | 1.71 | 1.80 | -1.64% | |
| 1.70 | 1.92 | 1.70 | 1.83 | +6.40% | |
| 1.65 | 1.75 | 1.57 | 1.72 | +6.17% | |
| 1.44 | 1.84 | 1.43 | 1.62 | +17.82% | |
| 1.79 | 1.83 | 1.31 | 1.38 | -89.77% | |
| 13.50 | 14.25 | 13.10 | 13.44 | +0.98% | |
| 12.99 | 13.60 | 12.99 | 13.31 | +1.99% | |
| 13.53 | 13.74 | 12.97 | 13.05 | -5.57% | |
| 14.51 | 14.64 | 13.18 | 13.82 | -3.56% | |
| 13.76 | 14.57 | 13.12 | 14.33 | +4.60% | |
| 15.04 | 15.52 | 13.65 | 13.70 | -9.27% | |
| 14.82 | 15.23 | 14.50 | 15.10 | +1.89% | |
| 15.86 | 16.25 | 14.64 | 14.82 | -6.20% | |
| 16.47 | 16.50 | 15.29 | 15.80 | -2.41% | |
| 14.75 | 16.28 | 14.72 | 16.19 | +11.42% | |
| 14.60 | 14.84 | 14.22 | 14.53 | -0.75% | |
| 14.57 | 15.06 | 14.35 | 14.64 | -1.01% | |
| 15.92 | 16.26 | 14.00 | 14.79 | -5.92% | |
| 15.66 | 16.25 | 15.43 | 15.72 | +0.26% | |
| 15.81 | 16.02 | 15.08 | 15.68 | -1.07% | |
| 14.78 | 16.18 | 14.55 | 15.85 | +5.11% | |
| 15.25 | 15.44 | 14.59 | 15.08 | -1.69% | |
| 15.57 | 16.05 | 15.03 | 15.34 | -1.41% | |
| 16.07 | 16.13 | 15.25 | 15.56 | -2.63% | |
| 17.12 | 17.22 | 15.89 | 15.98 | -8.95% | |
| 18.15 | 18.31 | 17.00 | 17.55 | -4.20% | |
| 18.00 | 19.40 | 17.73 | 18.32 | +3.33% | |
| 17.07 | 17.88 | 16.73 | 17.73 | +2.01% | |
| 16.20 | 17.61 | 15.80 | 17.38 | +6.89% | |
| 15.47 | 16.61 | 15.28 | 16.26 | +5.17% | |
| 14.66 | 15.49 | 14.00 | 15.46 | +16.33% | |
| 14.40 | 14.88 | 13.22 | 13.29 | -8.66% | |
| 13.87 | 14.85 | 13.72 | 14.55 | +7.78% | |
| 13.29 | 13.68 | 12.96 | 13.50 | +0.45% | |
| 12.83 | 13.87 | 12.83 | 13.44 | +4.27% | |
| 12.84 | 13.34 | 12.41 | 12.89 | -0.31% | |
| 13.60 | 13.85 | 12.92 | 12.93 | -5.21% | |
| 12.00 | 13.69 | 12.00 | 13.64 | +11.35% | |
| 12.50 | 12.70 | 11.86 | 12.25 | +2.08% | |
| 11.94 | 12.28 | 11.78 | 12.00 | +1.10% | |
| 11.26 | 11.97 | 11.26 | 11.87 | +4.77% | |
| 11.50 | 11.57 | 11.20 | 11.33 | -1.90% | |
| 11.65 | 11.74 | 11.11 | 11.55 | +0.61% | |
| 11.36 | 12.30 | 11.27 | 11.48 | +6.99% | |
| 10.51 | 11.00 | 10.30 | 10.73 | +1.71% | |
| 10.63 | 11.00 | 10.53 | 10.55 | -1.68% | |
| 10.55 | 10.99 | 10.25 | 10.73 | +1.80% | |
| 10.89 | 11.15 | 10.54 | 10.54 | -1.77% | |
| 11.07 | 11.07 | 10.57 | 10.73 | -3.25% | |
| 10.75 | 11.57 | 10.75 | 11.09 | +2.97% | |
| 10.90 | 11.34 | 10.76 | 10.77 | -1.64% | |
| 11.75 | 11.80 | 10.88 | 10.95 | -8.52% | |
| 11.80 | 12.10 | 11.50 | 11.97 | +0.84% | |
| 11.67 | 11.95 | 11.42 | 11.87 | +1.54% | |
| 11.88 | 11.96 | 11.56 | 11.69 | -1.60% | |
| 11.98 | 12.44 | 11.81 | 11.88 | -0.83% | |
| 12.35 | 12.45 | 11.95 | 11.98 | -1.24% | |
| 12.36 | 12.44 | 11.94 | 12.13 | -1.86% | |
| 11.89 | 12.75 | 11.85 | 12.36 | +3.00% | |
| 11.51 | 12.18 | 11.51 | 12.00 | +4.58% | |
| 11.46 | 11.56 | 10.95 | 11.48 | -1.25% | |
| 12.00 | 12.29 | 11.18 | 11.62 | -3.01% | |
| 11.74 | 12.37 | 11.40 | 11.98 | +0.67% | |
| 11.91 | 12.18 | 11.67 | 11.90 | -0.08% | |
| 12.17 | 12.30 | 11.76 | 11.91 | -2.14% | |
| 12.27 | 12.37 | 11.66 | 12.17 | +1.84% | |
| 11.70 | 12.32 | 11.55 | 11.95 | +2.49% | |
| 11.79 | 11.86 | 11.41 | 11.66 | +0.09% | |
| 12.05 | 12.21 | 11.43 | 11.65 | -3.08% | |
| 12.54 | 12.77 | 11.99 | 12.02 | -3.76% | |
| 13.36 | 13.39 | 12.47 | 12.49 | -6.23% | |
| 12.88 | 13.40 | 12.80 | 13.32 | +4.23% | |
| 13.24 | 13.32 | 12.56 | 12.78 | -2.52% | |
| 12.97 | 13.73 | 12.97 | 13.11 | +2.58% | |
| 14.54 | 14.60 | 12.67 | 12.78 | -12.47% | |
| 15.05 | 15.10 | 13.52 | 14.60 | -3.38% | |
| 14.17 | 15.84 | 14.17 | 15.11 | +5.66% | |
| 14.09 | 14.50 | 13.67 | 14.30 | +2.36% | |
| 13.88 | 14.08 | 13.52 | 13.97 | +0.36% | |
| 13.70 | 14.16 | 13.40 | 13.92 | +1.75% | |
| 14.12 | 14.59 | 13.63 | 13.68 | -2.98% | |
| 14.62 | 14.62 | 13.81 | 14.10 | -2.42% | |
| 13.70 | 14.50 | 13.10 | 14.45 | +7.20% | |
| 14.05 | 14.91 | 13.28 | 13.48 | -3.78% | |
| 14.61 | 14.92 | 13.97 | 14.01 | -5.21% | |
| 14.53 | 15.00 | 14.42 | 14.78 | +1.93% | |
| 14.38 | 14.59 | 14.23 | 14.50 | +0.52% | |
| 14.92 | 15.05 | 13.94 | 14.43 | -3.58% | |
| 15.00 | 15.35 | 14.33 | 14.96 | -0.60% | |
| 15.00 | 15.25 | 14.70 | 15.05 | +3.15% | |
| 14.85 | 15.03 | 14.19 | 14.59 | -1.95% | |
| 15.02 | 16.52 | 14.80 | 14.88 | -0.90% | |
| 15.68 | 15.98 | 14.80 | 15.02 | -6.16% | |
| 15.91 | 16.95 | 15.56 | 16.00 | +0.06% | |
| 14.01 | 16.30 | 13.85 | 15.99 | +14.13% | |
| 14.86 | 15.12 | 13.61 | 14.01 | -5.97% | |
| 14.99 | 15.25 | 14.39 | 14.90 | -0.47% | |
| 13.96 | 15.12 | 13.74 | 14.97 | +6.93% | |
| 13.36 | 14.08 | 13.30 | 14.00 | +5.82% | |
| 14.24 | 14.24 | 13.22 | 13.23 | -7.29% | |
| 14.34 | 14.90 | 13.79 | 14.27 | -0.21% | |
| 14.90 | 15.33 | 14.00 | 14.30 | -4.09% | |
| 15.27 | 15.89 | 14.22 | 14.91 | -4.21% | |
| 15.06 | 16.27 | 15.00 | 15.57 | +2.60% | |
| 14.82 | 15.74 | 14.56 | 15.17 | +8.51% | |
| 14.42 | 14.96 | 13.81 | 13.98 | +1.01% | |
| 14.18 | 14.85 | 13.70 | 13.84 | -2.47% | |
| 14.81 | 15.53 | 14.02 | 14.19 | -2.94% | |
| 14.74 | 15.25 | 13.62 | 14.62 | +0.76% | |
| 12.00 | 14.60 | 12.00 | 14.51 | +31.67% | |
| 10.63 | 11.82 | 10.37 | 11.02 | +3.09% | |
| 11.76 | 11.87 | 10.63 | 10.69 | -9.71% | |
| 11.82 | 12.19 | 11.50 | 11.84 | -0.92% | |
| 11.42 | 12.20 | 11.18 | 11.95 | +4.64% | |
| 11.65 | 11.87 | 11.11 | 11.42 | -1.72% | |
| 11.90 | 12.40 | 11.48 | 11.62 | -3.17% | |
| 11.72 | 12.11 | 11.31 | 12.00 | +2.13% | |
| 12.46 | 12.46 | 11.61 | 11.75 | -5.09% | |
| 11.53 | 12.85 | 11.45 | 12.38 | +6.27% | |
| 12.01 | 12.15 | 11.54 | 11.65 | -3.72% | |
| 12.17 | 12.57 | 11.90 | 12.10 | -1.31% | |
| 12.45 | 12.59 | 12.19 | 12.26 | -1.37% | |
| 12.50 | 12.92 | 12.17 | 12.43 | -0.56% | |
| 12.37 | 13.14 | 12.28 | 12.50 | +0.16% | |
| 12.65 | 12.65 | 11.80 | 12.48 | -1.34% | |
| 12.88 | 13.32 | 12.51 | 12.65 | -2.09% | |
| 13.04 | 13.21 | 12.60 | 12.92 | -0.62% | |
| 12.80 | 13.40 | 12.53 | 13.00 | +1.64% | |
| 14.00 | 14.08 | 12.73 | 12.79 | -1.62% | |
| 12.66 | 13.02 | 12.58 | 13.00 | +2.12% | |
| 12.39 | 13.12 | 12.20 | 12.73 | +2.99% | |
| 12.90 | 13.27 | 12.35 | 12.36 | -5.86% | |
| 12.95 | 13.34 | 12.40 | 13.13 | +1.39% | |
| 12.95 | 13.37 | 12.85 | 12.95 | 0.00% | |
| 12.30 | 13.18 | 12.24 | 12.95 | +3.52% | |
| 13.45 | 13.80 | 12.36 | 12.51 | -6.43% | |
| 13.97 | 14.28 | 13.25 | 13.37 | -4.57% | |
| 14.90 | 15.03 | 14.01 | 14.01 | -5.02% | |
| 14.30 | 15.64 | 14.10 | 14.75 | +3.65% | |
| 14.54 | 14.57 | 13.84 | 14.23 | -3.20% | |
| 14.89 | 15.43 | 14.40 | 14.70 | -0.54% | |
| 15.81 | 15.81 | 14.25 | 14.78 | -4.95% | |
| 16.45 | 16.84 | 15.54 | 15.55 | -5.30% | |
| 16.08 | 16.50 | 15.35 | 16.42 | +2.31% | |
| 15.91 | 16.65 | 15.28 | 16.05 | +0.94% | |
| 18.27 | 18.29 | 15.15 | 15.90 | -12.97% | |
| 15.05 | 18.38 | 14.80 | 18.27 | +21.40% | |
| 14.85 | 15.58 | 14.30 | 15.05 | +2.38% | |
| 13.42 | 14.84 | 13.42 | 14.70 | +10.53% | |
| 13.14 | 13.80 | 12.78 | 13.30 | +1.37% | |
| 12.93 | 13.53 | 12.40 | 13.12 | +2.10% | |
| 13.40 | 14.02 | 12.40 | 12.85 | -3.17% | |
| 12.50 | 13.42 | 12.19 | 13.27 | +7.71% | |
| 13.29 | 13.85 | 11.76 | 12.32 | +11.49% | |
| 12.27 | 12.66 | 10.94 | 11.05 | -9.35% | |
| 11.96 | 12.34 | 11.84 | 12.19 | +1.58% | |
| 12.21 | 12.32 | 11.70 | 12.00 | -1.48% | |
| 12.65 | 12.70 | 12.11 | 12.18 | -3.87% | |
| 12.56 | 13.00 | 12.04 | 12.67 | +0.96% | |
| 12.03 | 12.76 | 12.03 | 12.55 | +4.93% | |
| 12.33 | 13.35 | 11.91 | 11.96 | -4.01% | |
| 13.21 | 13.66 | 12.30 | 12.46 | -4.89% | |
| 13.05 | 14.22 | 12.90 | 13.10 | +2.18% | |
| 12.01 | 13.83 | 12.01 | 12.82 | +8.74% | |
| 11.30 | 12.42 | 10.98 | 11.79 | +5.65% | |
| 10.61 | 11.49 | 10.40 | 11.16 | +5.18% | |
| 10.47 | 11.00 | 10.45 | 10.61 | +2.31% | |
| 10.16 | 10.65 | 9.89 | 10.37 | +5.28% | |
| 9.94 | 10.10 | 9.60 | 9.85 | +0.31% | |
| 9.84 | 10.02 | 9.40 | 9.82 | -0.30% | |
| 10.31 | 10.49 | 9.65 | 9.85 | -4.37% | |
| 9.83 | 10.55 | 9.74 | 10.30 | +6.74% | |
| 9.45 | 9.91 | 9.44 | 9.65 | +3.21% | |
| 9.18 | 9.47 | 8.90 | 9.35 | +1.74% | |
| 8.96 | 9.20 | 8.76 | 9.19 | +2.00% | |
| 9.01 | 9.22 | 8.80 | 9.01 | -0.66% | |
| 9.29 | 9.32 | 8.82 | 9.07 | -3.82% | |
| 9.46 | 9.65 | 9.28 | 9.43 | -0.42% | |
| 9.51 | 9.70 | 9.09 | 9.47 | +0.74% | |
| 9.09 | 9.60 | 9.09 | 9.40 | +4.44% | |
| 8.29 | 9.19 | 8.16 | 9.00 | +10.43% | |
| 7.79 | 8.19 | 7.61 | 8.15 | +5.78% | |
| 7.57 | 7.81 | 7.38 | 7.71 | +5.26% | |
| 7.53 | 7.99 | 7.30 | 7.32 | -4.75% | |
| 7.40 | 8.05 | 7.35 | 7.69 | +4.56% | |
| 7.21 | 7.49 | 7.17 | 7.35 | +3.52% | |
| 6.80 | 7.20 | 6.60 | 7.10 | +6.13% | |
| 6.87 | 6.99 | 6.63 | 6.69 | -4.29% | |
| 7.09 | 7.10 | 6.94 | 6.99 | -0.71% | |
| 6.90 | 7.19 | 6.82 | 7.04 | +0.72% | |
| 7.01 | 7.10 | 6.87 | 6.99 | -0.57% | |
| 6.98 | 7.09 | 6.92 | 7.03 | +1.59% | |
| 7.16 | 7.31 | 6.78 | 6.92 | -2.40% | |
| 6.98 | 7.31 | 6.51 | 7.09 | +1.07% | |
| 7.08 | 7.16 | 6.84 | 7.02 | -2.16% | |
| 7.45 | 7.45 | 7.10 | 7.17 | -2.32% | |
| 7.49 | 7.54 | 7.15 | 7.34 | -1.74% | |
| 7.57 | 7.72 | 7.30 | 7.47 | +3.32% | |
| 7.24 | 7.28 | 7.00 | 7.23 | +0.14% | |
| 7.27 | 7.75 | 7.22 | 7.22 | -3.73% | |
| 7.55 | 7.60 | 7.10 | 7.50 | +1.49% | |
| 7.23 | 7.53 | 7.18 | 7.39 | +0.82% | |
| 7.39 | 7.40 | 7.17 | 7.33 | -0.95% | |
| 7.26 | 7.72 | 7.13 | 7.40 | +2.49% | |
| 6.69 | 7.24 | 6.10 | 7.22 | +7.76% | |
| 6.65 | 6.89 | 6.65 | 6.70 | +0.22% | |
| 6.90 | 7.02 | 6.65 | 6.69 | -1.98% | |
| 7.66 | 7.70 | 6.82 | 6.82 | -2.29% | |
| 7.46 | 7.53 | 6.93 | 6.98 | -7.06% | |
| 7.40 | 7.73 | 7.24 | 7.51 | +1.35% | |
| 7.36 | 7.55 | 7.29 | 7.41 | -0.67% | |
| 7.84 | 7.99 | 7.27 | 7.46 | -3.99% | |
| 7.83 | 8.24 | 7.72 | 7.77 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the TENX chart for longer ranges.