Actinium Pharmaceuticals (Delaware) (ATNM) closed at $1.32 on October 19, 2026, up 16.8% from the previous close, on volume of 651,226 shares (30-day average 142,892).
Data as of October 19, 2026.
PRNewswire (Tue, 20-Oct 8:01 AM ET)
PRNewswire (Tue, 20-Oct 7:30 AM ET)
TipRanks (Tue, 20-Oct 6:26 AM ET)
PRNewswire (Mon, 19-Oct 7:31 AM ET)
Actinium Pharmaceuticals Announces Inducement Grants to New Employees
PRNewswire (Fri, 16-Oct 5:00 PM ET)
PRNewswire (Fri, 16-Oct 8:31 AM ET)
PRNewswire (Fri, 16-Oct 7:30 AM ET)
Actinium Pharmaceuticals Appoints Matt David as Chief Financial Officer
TipRanks (Thu, 15-Oct 5:28 PM ET)
PRNewswire (Thu, 15-Oct 8:31 AM ET)
Actinium Pharmaceuticals names former CorMedix executive as CFO
Seeking Alpha News (Thu, 15-Oct 8:14 AM ET)
Actinium Pharmaceuticals Inc is a biopharmaceutical company engaged in the development of targeted radiotherapies using its Antibody Radiation Conjugates (ARCs) platform, which combines monoclonal antibodies with radioisotopes to selectively target and destroy cancer cells. The company's product candidates include Iomab-B, an iodine-131 based radiotherapy for conditioning prior to hematopoietic stem cell transplantation, and Actimab-A, an actinium-225 based radiotherapy in clinical development for acute myeloid leukemia. The company is also advancing additional programs, including Iomab-ACT for cell and gene therapy conditioning and other preclinical candidates targeting solid tumors.
Actinium Pharmaceuticals (Delaware) trades on the AMEX stock market under the symbol ATNM.
As of October 20, 2026, ATNM stock price climbed to $1.39 with 781,019 million shares trading.
ATNM has a beta of 1.22, meaning it tends to be more sensitive to market movements. ATNM has a correlation of 0.05 to the broad based SPY ETF.
ATNM has a market cap of $43.61 million. This is considered a Sub-Micro Cap stock.
In the last 3 years, ATNM traded as high as $10.24 and as low as $.74.
The top ETF exchange traded funds that ATNM belongs to (by Net Assets): VTI, VXF, IWC, BUSM.
ATNM has underperformed the market in the last year with a return of -4.8%, while SPY returned +16.8%. This shows that you would have done better investing in the overall market (through SPY) over the last year than in ATNM shares. However, ATNM has outperformed the market in the last 3 month and 2 week periods, returning +50.8% and +15.8%, while SPY returned +3.7% and -0.8%, respectively. This indicates ATNM has been having a stronger performance recently.
ATNM support price is $1.25 and resistance is $1.39 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that ATNM shares will trade within this expected range on the day.
