International Isotopes (INIS) Stock Price, News & Analysis

Company Overview

International Isotopes, Inc. is a U.S.-based company specializing in the production, purification and distribution of radioisotopes and related radiochemicals for medical, industrial and research applications. Through its facilities in Idaho and New Mexico, the company produces isotopes such as iodine-131, rhenium-188 and molybdenum-99—the parent of technetium-99m, which is widely used in diagnostic imaging. International Isotopes also supplies calibration and check sources for radiation detection instruments, including custom shielding and encapsulation services for specialty applications.

In its medical segment, International Isotopes focuses on radiopharmaceutical manufacturing and contract services. The company’s radiochemical expertise supports partners in nuclear medicine by providing high-purity tracers and generator systems for hospitals and imaging centers. On the industrial side, it offers neutron sources—including californium-252—for use in oil exploration, materials analysis and reactor startup testing. International Isotopes also machines and fabricates depleted uranium for radiation shielding, leveraging its licensing under the U.S. Nuclear Regulatory Commission.

Founded in 1995, International Isotopes has pursued the development of a domestic, non-reactor-based molybdenum-99 production facility to reduce reliance on aging research reactors abroad. The company operates under multiple NRC licenses and maintains partnerships with research institutions to advance production technologies. While its core operations are centered in the United States, International Isotopes serves customers globally through export agreements and collaborative ventures in Europe and Asia.

Management is led by President and CEO O. John Ritch, who has overseen expansion of the company’s radiochemical capabilities and regulatory portfolio. Supported by a technical team of radiochemists and engineers, International Isotopes continues to invest in production infrastructure aimed at meeting growing demand for medical isotopes and specialized radiation sources. The company’s strategic focus remains on enhancing supply security for diagnostic and therapeutic nuclear medicine worldwide.

Key Stats

• Today's Range: $0.07 to $0.08
• 50-Day Range: $0.06 to $0.09
• 52-Week Range: $0.05 to $0.11
• Volume: 50,775 shs
• Average Volume: 53,699 shs
• Market Capitalization: $38.68 million
• P/E Ratio: N/A
• Dividend Yield: N/A
• Price Target: N/A
• Consensus Rating: N/A

International Isotopes Stock Analysis - MarketRank™

International Isotopes scored higher than 2% of companies evaluated by MarketBeat. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation.

Analyst's Opinion

• Score: N/A
• Analyst Rating: N/A

Consensus Rating

There is not enough analysis data for International Isotopes.

Earnings and Valuation

• Score: 0.0 / 5
• Proj. Earnings Growth: N/A

Price to Book Value per Share Ratio

International Isotopes has a P/B Ratio of 7.31. P/B Ratios above 3 indicate that a company could be overvalued with respect to its assets and liabilities.

Short Interest

• Score: 3.0 / 5
• Short Interest Level: Healthy

Percentage of Shares Shorted

0.00% of the float of International Isotopes has been sold short.

Short Interest Ratio / Days to Cover

International Isotopes has a short interest ratio ("days to cover") of 0.03, which is generally considered an acceptable ratio of short interest to trading volume.

Change versus previous month

Short interest in International Isotopes has recently increased by 390.78%, indicating that investor sentiment is decreasing significantly.

Dividend

• Score: 0.0 / 5
• Dividend Strength: N/A

Dividend Yield

International Isotopes does not currently pay a dividend.

Dividend Growth

International Isotopes does not have a long track record of dividend growth.

News and Social Media

• Score: 0.0 / 5
• News Sentiment: N/A

News Coverage This Week

MarketBeat has tracked 1 news article for International Isotopes this week, compared to 0 articles on an average week.

Company Ownership

• Score: 0.7 / 5
• Insider Trading: N/A

Insider Buying vs. Insider Selling

In the past three months, International Isotopes insiders have not sold or bought any company stock.

Percentage Held by Insiders

18.30% of the stock of International Isotopes is held by insiders. A high percentage of insider ownership can be a sign of company health.

Percentage Held by Institutions

International Isotopes has minimal institutional ownership at this time.

Company Calendar

• Last Earnings: 4/02/2018
• Today: 5/25/2026
• Fiscal Year End: 12/31/2026

Industry, Sector and Symbol

• Stock Exchange: OTCMKTS
• Sector: Computer and Technology
• Industry: INSTRU - SCIENTFC
• Sub-Industry: Measuring And Control Equipment
• Current Symbol: OTCMKTS:INIS
• CIK: 1038277
• Web: www.intisoid.com
• Phone: (208) 524-5300
• Fax: 208-524-1411
• Employees: 30
• Year Founded: 1995

Profitability

• EPS (Trailing Twelve Months): N/A
• Trailing P/E Ratio: N/A
• Forward P/E Ratio: N/A
• P/E Growth: N/A
• Net Income: -$910 thousand
• Net Margins: -17.56%
• Pretax Margin: -17.55%
• Return on Equity: -58.34%
• Return on Assets: -12.19%

Debt

• Debt-to-Equity Ratio: 0.65
• Current Ratio: 0.88
• Quick Ratio: 0.94

Sales & Book Value

• Annual Sales: $13.07 million
• Price / Sales: 2.96
• Cash Flow: N/A
• Price / Cash Flow: N/A
• Book Value: $0.01 per share
• Price / Book: 7.31

Miscellaneous

• Outstanding Shares: 529,130,000
• Free Float: 432,299,000
• Market Cap: $38.68 million
• Optionable: Not Optionable
• Beta: 1.12