ISO - ASP Isotopes
ISO share price on Johannesburg Stock ExchangeASP Isotopes is listed on the Johannesburg Stock Exchange (JSE) since August 27th, 2025. ASP Isotopes is traded on the JSE under the ticker symbol “ISO”. The International Securities Identification Number (ISIN) of JSE:ISO is US00218A1051. ASP Isotopes is currently the 110th most valuable stock on the JSE with a market capitalization of ZAR 10.7 billion, which makes about 0.042% of the Johannesburg Stock Exchange equity market.
ISO •
84.60 ▴ 0.81 (0.97%) 11 hours ago
| Last Trading Results |
|---|
| Opening Price | |
| Day’s Low Price | 82.51 |
| Day’s High Price | 86.91 |
| Traded Volume | 23,773 |
| Number of Deals | 154 |
| Gross Turnover | 2.01M |
| Growth & Valuation |
|---|
| Earnings Per Share | |
| Price/Earning Ratio | |
| Dividend Per Share | |
| Dividend Yield | |
| Shares Outstanding | 126M |
| Market Capitalization | 10.7B |
Monetary values are quoted in South African Rand (ZAR) unless otherwise stated
ISO Stock Market Performance
| 1WK | 4WK | 3MO |
|---|
| +4.77% | -31.3% | -21.4% |
The current share price of ASP Isotopes (ISO) is ZAR 84.60. ISO closed its last trading day (Tuesday, February 24, 2026) at 84.60 ZAR per share on the Johannesburg Stock Exchange (JSE), recording a 1% gain over its previous closing price of 83.79 ZAR. ASP Isotopes began the year with a share price of 97.50 ZAR but has since lost 13.2% off that price valuation, ranking it 376th on the JSE in terms of year-to-date performance. Shareholders’ worries are compounded by the fact that ISO has lost 31% of the stock’s value from January 27th to date.
ASP Isotopes is the 187th most traded stock on the Johannesburg Stock Exchange over the past three months (Nov 24, 2025 - Feb 24, 2026). ISO has traded a total volume of 6.84 million shares—in 16,595 deals—valued at ZAR 772 million over the period, averaging a volume of 108,597 shares (valued at ZAR 12.3 million) per session. A volume high of 767,323 was achieved on February 6th for the same period. The table below details the last 10 trading days of activity of ASP Isotopes on the Johannesburg Stock Exchange.
| Date | Volume | Close | Change | Change% |
|---|
| 2026-02-24 | 23,773 | 84.60 | +0.81 | +0.97% |
| 2026-02-23 | 25,713 | 83.79 | -2.73 | -3.16% |
| 2026-02-20 | 11,484 | 86.52 | -0.68 | -0.78% |
| 2026-02-19 | 56,195 | 87.20 | -0.90 | -1.02% |
| 2026-02-18 | 33,328 | 88.10 | +7.35 | +9.10% |
| 2026-02-17 | 40,141 | 80.75 | -1.52 | -1.85% |
| 2026-02-16 | 20,519 | 82.27 | -0.26 | -0.32% |
| 2026-02-13 | 38,644 | 82.53 | -2.87 | -3.36% |
| 2026-02-12 | 379,624 | 85.40 | -2.07 | -2.37% |
| 2026-02-11 | 40,657 | 87.47 | | |
Profile of ASP Isotopes Inc
ASP Isotopes Inc was founded on September 13, 2021 and operates in the Basic Materials sector, specifically, the Chemicals industry.
Factsheet of ASP Isotopes Inc
- Sector
- Basic Materials
- Industry
- Chemicals
- Address
- 601 Pennsylvania Avenue NW, South Building Suite 900, Washington, DC, 20004, United States
- Telephone
- +1-561-709-3043
ISO Industrial Market Competitors
ASP Isotopes Inc, issuers of the ISO stock on the Johannesburg Stock Exchange, have a number of market competitors who are also engaged in the Basic Materials sector and/or Chemicals industry. The table below presents an overview of the market standing of the top 10 by year-to-date performance.
Index of African Stock Exchanges:
- Botswana Stock Exchange
- BRVM Stock Exchange
- Ghana Stock Exchange
- Johannesburg Stock Exchange
- Lusaka Securities Exchange
- Malawi Stock Exchange
- Nairobi Securities Exchange
- Nigerian Stock Exchange
- Uganda Securities Exchange
- Zimbabwe Stock Exchange