In this article, we will take a look at the hidden penny stocks to invest in.
Penny stocks continue to attract investors for good reason. Trading under $5, these stocks offer outsized returns and growth opportunities, particularly when backed by strong catalysts. While volatility in such stocks weighs significantly on decision-making, it’s usually this price fluctuation that attracts investors looking to uncover the next breakout name before it gets the market’s attention.
On June 5, WSJ published an article titled “Small Stocks Are Trouncing Market Giants—and That’s Not a Good Sign,” which highlighted that big gains in speculative small-cap names are often fueled by momentum-driven trading rather than decisions based on fundamentals. The article advances the argument that, even though markets are closely watching big names, smaller companies are delivering stronger performance this year, with notably large gains.
As outlined in the article, the Russell Microcap Index appreciated by 21% this year, the Russell 2000 small-cap index was slightly lower, and the S&P 500 rose by just over half as much. In contrast, the Russell Top 50 of mega-cap stocks is up only 6%, with the Magnificent Seven advancing even less. It’s a story of speculation at work, the writer asserted.
With this backdrop, let’s explore our list of the hidden penny stocks to invest in.

Our Methodology
For this article, we screened for stocks trading under $5, market capitalizations over $1 billion, and upside potential of at least 10%. We shortlisted stocks with the fewest hedge fund holdings, subject to a minimum of 15 hedge fund holders, based on Insider Monkey’s database as of Q1 2026, indicating an overlooked angle. We limited our final selection to companies that have recently reported noteworthy developments likely to impact investor sentiment. These stocks were then ranked according to the upside potential.
Why are we interested in the stocks that hedge funds pile into? The reason is simple: our research has shown that we can outperform the market by imitating the top stock picks of the best hedge funds. Insider Monkey’s quarterly newsletter’s strategy selects 14 small-cap and large-cap stocks every quarter and has returned 599.2% since May 2014, beating its benchmark by 372 percentage points (see more details here).
7. Kosmos Energy Ltd. (NYSE:KOS)
Upside Potential as of June 10, 2026: 13.20%
Number of Hedge Fund Holders: 43
On May 27, Mizuho lifted the price target on Kosmos Energy Ltd. (NYSE:KOS) to $3 from $2, while downgrading from Neutral to Underperform. The analyst highlighted the stock’s performance, with the year-to-date return surpassing the market’s return by a solid 221%.
Mizuho pointed out that although the company’s balance sheet has meaningfully improved, its net debt-to-EBITDA is expected to be 1.8 times by year-end, significantly higher than the peer average of nearly 0.5 times. Execution risk, particularly associated with the cost reduction targets, remains a key challenge for Kosmos Energy Ltd. (NYSE:KOS), the firm added.
In its latest earnings call, Kosmos Energy Ltd. (NYSE:KOS) maintained its gross cargo guidance of 32-36 LNG cargos for the year ahead. A rebound in volumes is anticipated later in the year, thanks to cooler temperatures. With a 50% reduction target for OpEx per MMBtu in 2026 and a cost scope for additional cost reductions in 2027, Kosmos Energy Ltd. (NYSE:KOS) is one of the hidden penny stocks to invest in.
Kosmos Energy Ltd. (NYSE:KOS) is a Texas-based deepwater exploration and production company specializing in oil and natural gas properties. Founded in 2003, the company has oil and gas production projects in multiple areas, including Equatorial Guinea, Mauritania, and the Gulf of America.






