Why Signia Small Cap Sold Hudbay Minerals (HBM) After 300%+ Gain

Signia Capital Management's Small Cap Value Strategy sold its entire position in Hudbay Minerals Inc. (NYSE:HBM) during the first half of 2026, booking a gain of more than 300% after the copper and gold miner hit the fund's internal valuation targets. The stock has continued to rally since the sale, closing at $27.67 on Aug. 11, up 25.89% over the past month and 144.22% over 52 weeks.

The fund first bought Hudbay in January 2024 at roughly $5 a share. In its Q2 2026 investor letter, Signia said it saw a number of catalysts in the company: the organic growth profile of its Peru and Canada operations, plus the development and de-risking of the Copper World project in Arizona. Hudbay's management team "has executed exceptionally well on cost control and operational efficiency across its mine portfolio," the letter stated. A strong pricing environment for both base and precious metals helped the company deliver substantial earnings growth and free cash flow.

"Having reached our internal valuation targets, we exited the position in the $21–$23 range," the fund wrote. The stock's current price sits about 20% above the top end of that range, suggesting the market is pricing in additional upside that the fund's model did not capture at the time of sale.

Hudbay now carries a market capitalization of $12.28 billion. Hedge fund interest has been rising: 42 funds held HBM at the end of the first quarter, up from 40 three months earlier, according to the latest 13F filings.

The fund's exit raises a natural question for remaining holders. A disciplined value manager sold at a target that has since been exceeded, which could mean the stock has entered a more speculative phase. Conversely, it could reflect a conservative valuation framework that left room for commodity price momentum to push shares higher. The answer likely depends on copper prices and the timeline for Copper World, the Arizona project that was a key part of the investment thesis.

AlphaScala's proprietary model gives HBM an Alpha Score of 79 out of 100, labeled Strong, in the Basic Materials sector. That score reflects the company's operational execution and the tailwind from copper and gold prices, but the recent price surge has compressed the margin of safety since Signia's exit.

For context on the broader commodity backdrop, copper analysis shows the red metal has been supported by supply constraints and electrification demand. Hudbay's exposure to both copper and gold gives it a dual driver, but also ties its fate to macro factors outside management's control.

Signia's exit at $21–$23 leaves the stock trading well above that range. The next major milestone for the company is the Copper World feasibility study and construction decision, which will determine whether the project's long-term value matches the market's current expectations.