If You Invested in O3 Mining Inc (OIIIF)
See the OIIIF overviewWhat $1,000 or $10,000 in OIIIF Was Worth at Its Last Close
Real historical value by amount invested and how long before the last close| If you invested | 1 year before | 5 years before | 10 years before | Since Sep 3, 2019 |
|---|---|---|---|---|
| $1,000 | $1,072 +7% | $1,460 +46% | — | $578 -42% |
| $10,000 | $10,717 +7% | $14,597 +46% | — | $5,778 -42% |
Based on real historical closing prices adjusted for stock splits, without dividends, through 2025-03-18. Figures with dividends reinvest each cash dividend at the previous close less the dividend, before taxes. Past performance does not guarantee future results.
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Choose your own date and amount for OIIIF$1,000 Investment Over Time
OIIIF vs S&P 500Year-by-Year Returns
OIIIF annual performance| Year | Start Price | End Price | Annual Return | Cumulative |
|---|---|---|---|---|
| 2019Sep 3 to Dec 31 | $1.9730 | $2.19 | +10.7% | +10.7% |
| 2020 | $2.19 | $2.48 | +13.6% | +25.8% |
| 2021 | $2.48 | $1.62 | -34.7% | -17.9% |
| 2022 | $1.62 | $1.1280 | -30.4% | -42.8% |
| 2023 | $1.1280 | $1.20 | +6.4% | -39.2% |
| 2024 | $1.20 | $1.1530 | -3.9% | -41.6% |
| 2025Dec 31, 2024 to Mar 18 | $1.1530 | $1.14 | -1.1% | -42.2% |
About O3 Mining Inc
OTC
O3 Mining Inc. (OTCQX: OIIIF; TSXV: OIII) is a gold explorer and mine developer in Québec, Canada. The company operates in the gold ore mining industry and is part of the broader mining, quarrying, and oil and gas extraction sector. According to company disclosures in multiple joint news releases with Agnico Eagle Mines Limited, O3 Mining focuses on advancing gold projects in Québec, with a particular emphasis on its principal asset, the Marban Alliance project.
O3 Mining states that it owns a 100% interest in all of its properties in Québec, covering 128,680 hectares. These properties are located adjacent to Agnico Eagle’s Canadian Malartic mine, a major gold operation in the Abitibi region. The company describes itself as having advanced the Marban Alliance project over a period of five years to the cusp of its next stage of development, with the expectation that the project will deliver long-term benefits to stakeholders.
O3 Mining’s primary asset is its 100%-owned Marban Alliance property located near Val d'Or, in the Abitibi region of Québec, and adjacent to Agnico Eagle's Canadian Malartic complex. The Marban Alliance property includes the Marban deposit, which is characterized in O3 Mining and Agnico Eagle’s joint news release as an advanced exploration project that could support an open pit mining operation. In the same disclosure, O3 Mining reports mineral resource estimates for the Marban pit, including indicated and inferred mineral resources measured in tonnes and gold grades, along with contained ounces of gold as of an effective date in 2022.
In addition to Marban Alliance, O3 Mining also reports that it owns 100% of the Alpha property and 100% of the Kinebik property. These assets form part of its exploration and development portfolio in Québec. Across these projects, O3 Mining positions itself as a company focused on exploring and developing gold resources in a well-known mining district, adjacent to an established gold mining complex.
Corporate transaction with Agnico Eagle
O3 Mining’s recent history is closely tied to a friendly transaction with Agnico Eagle Mines Limited. In a joint news release dated December 12, 2024, Agnico Eagle and O3 Mining announced a definitive support agreement under which Agnico Eagle agreed to offer to acquire all of the outstanding common shares of O3 Mining by way of an all-cash take-over bid. The offer price was set at $1.67 per O3 Mining common share, with the offer valued at approximately $204 million on a fully diluted in-the-money basis.
Subsequent news releases describe the progress of this transaction. Agnico Eagle commenced the offer in December 2024 and later reported the successful take-up of a large majority of O3 Mining’s outstanding shares. By January 24, 2025, Agnico Eagle disclosed that it had taken up and acquired approximately 94.1% of the outstanding common shares of O3 Mining under the offer. A further update on February 4, 2025 reported that Agnico Eagle had acquired approximately 95.6% of the issued and outstanding O3 Mining shares and beneficially owned and exercised control and direction over approximately 96.5% of the issued and outstanding common shares on a basic basis.
The February 4, 2025 joint news release explains that Agnico Eagle Abitibi Acquisition Corp., a wholly-owned subsidiary of Agnico Eagle, and O3 Mining will amalgamate under the Business Corporations Act (Ontario). The amalgamated entity will become a wholly-owned subsidiary of Agnico Eagle. This amalgamation is described as the subsequent acquisition transaction contemplated by the offer, by which Agnico Eagle will acquire ownership of 100% of the O3 Mining common shares, subject to the treatment of dissenting shareholders.
Following completion of the amalgamation, the same news release states that O3 Mining’s common shares will be de-listed from the TSX Venture Exchange and that O3 Mining will apply to the Ontario Securities Commission to cease to be a reporting issuer under Canadian securities laws. Once O3 Mining ceases to be a reporting issuer, it will no longer be subject to ongoing continuous disclosure and reporting obligations and will be a private company wholly-owned by Agnico Eagle. These disclosures indicate a transition of O3 Mining from a publicly traded company to a private subsidiary within Agnico Eagle’s corporate structure.
Business focus and assets
According to repeated “About O3 Mining Inc.” sections in the joint news releases, O3 Mining’s business focus is on gold exploration and mine development in Québec. The company highlights that it is a gold explorer and mine developer in Québec, adjacent to Agnico Eagle’s Canadian Malartic mine. It notes that it owns a 100% interest in all its properties in Québec and identifies the Marban Alliance project as its principal asset.
The Marban Alliance project is described as having been advanced over the last five years to the cusp of its next stage of development. O3 Mining’s disclosures indicate that the company views this project as having the potential to deliver long-term benefits to stakeholders. In the December 12, 2024 joint news release, O3 Mining and Agnico Eagle provide additional detail on the Marban deposit, including indicated and inferred mineral resource estimates and the potential for the project to support an open pit mining operation. The same disclosure notes that the Marban Alliance property could be complementary to Agnico Eagle’s existing operations at the Canadian Malartic complex.
Beyond Marban Alliance, O3 Mining’s portfolio includes the Alpha and Kinebik properties, both of which are described as being 100%-owned by O3 Mining. These properties, together with Marban Alliance, form the company’s exploration and development platform in Québec’s Abitibi region.
Status of the OIIIF stock
The O3 Mining common shares have traded on the TSX Venture Exchange under the symbol OIII and on the OTCQX market under the symbol OIIIF. Based on the February 4, 2025 joint news release, following completion of the amalgamation with Agnico Eagle’s subsidiary, the O3 Mining common shares are expected to be de-listed from the TSX Venture Exchange, and O3 Mining will apply to cease to be a reporting issuer. The same disclosure indicates that, after these steps, O3 Mining will be a private company wholly-owned by Agnico Eagle.
These statements from the company and Agnico Eagle provide important context for investors researching the historical OIIIF ticker. The information suggests that O3 Mining is in the process of being fully acquired and integrated into Agnico Eagle’s corporate structure, with its public listings expected to end following the completion of the amalgamation and related regulatory steps.
Key points for investors and researchers
- O3 Mining Inc. is described as a gold explorer and mine developer in Québec, Canada, adjacent to Agnico Eagle’s Canadian Malartic mine.
- The company reports that it owns a 100% interest in all its properties in Québec, covering 128,680 hectares.
- Its principal asset is the Marban Alliance project in Québec, which O3 Mining states it has advanced over five years to the cusp of its next development stage.
- O3 Mining also owns 100% of the Alpha property and 100% of the Kinebik property.
- Agnico Eagle has launched and substantially completed an all-cash take-over bid for O3 Mining at $1.67 per share, with subsequent plans to amalgamate O3 Mining into a wholly-owned subsidiary.
- Following completion of the amalgamation, O3 Mining’s common shares are expected to be de-listed from the TSX Venture Exchange, and O3 Mining intends to apply to cease to be a reporting issuer, becoming a private company wholly-owned by Agnico Eagle.
Frequently Asked Questions
O3 Mining Inc investment returns
How much was $1,000 invested in O3 Mining Inc worth at its last close?
If you invested $1,000 in O3 Mining Inc (OIIIF) 5 years before its last close, on 2020-03-18, your investment was worth $1,460 on 2025-03-18, a +46.0% price return without dividends, growing at a compounded rate of 7.9% per year (CAGR).
Has O3 Mining Inc outperformed the S&P 500?
Comparison data requires at least 10 years of trading history. Use the calculator above to compare OIIIF performance over available time periods.
What is O3 Mining Inc's average annual return?
The compound annual growth rate (CAGR) of OIIIF’s share price over the 5 years to Mar 18, 2025 is 7.9%, without dividends. Individual years vary a great deal, and OIIIF’s best recent full year was 2020 (+13.6%) while the worst was 2021 (-34.7%).
For informational and educational purposes only, not investment advice.