5 Best Fundamentally Strong Penny Stocks to Invest In Now

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1. MannKind Corporation (NASDAQ:MNKD)

Upside Potential as of May 1, 2026: 165.49%

On April 8, TheFly reported that Truist trimmed the price target on MannKind Corporation (NASDAQ:MNKD) to $6 from $7 and reiterated a Buy rating. This downward revision in price was a part of a broader research note previewing Q1 earnings in the biotechnology space. The firm is among the 88% of analysts bullish on the stock, having a consensus one-year price target of $7.50.

In a research note, the analyst says that the sector is becoming less sensitive to regulatory and policy changes, with a recent pickup in deal activity having the potential to drive momentum through the rest of the year into midterms. What builds the case for MannKind Corporation (NASDAQ:MNKD) is a strong pipeline of catalysts that could power growth. These include the pediatric Afrezza label expansion PDUFA, scheduled for May 29; the Furoscix ReadyFlow autoinjector PDUFA, set for July 26; and the MNKD-201 in IPF updates, Truist noted.

Although MannKind Corporation (NASDAQ:MNKD) has consistently underperformed the S&P 500, the company’s YoY quarterly revenue growth of 45.80% and upside potential of nearly 165% position it among the best fundamentally strong penny stocks to invest in now.

MannKind Corporation (NASDAQ:MNKD) is a Connecticut-based biopharmaceutical company that specializes in chronic disease care. Incorporated in 1991, the company provides solutions for serious conditions, such as diabetes, pulmonary hypertension, and fluid overload.

While we acknowledge the potential of MNKD to grow, our conviction lies in the belief that some AI stocks hold greater promise for delivering higher returns and have limited downside risk. If you are looking for an AI stock that is more promising than MNKD and that has 100x upside potential, check out our report about the cheapest AI stock.

READ NEXT: Starter Stock Portfolio: 14 Safe Stocks to Buy Now and 40 Most Popular Stocks Among Hedge Funds Heading Into 2026.

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