CRMD vs. MIRM: Which Specialized Biotech Stock is the Better Pick?

Core Insights - CorMedix (CRMD) and Mirum Pharmaceuticals (MIRM) are focusing on treatments for underserved medical conditions, creating niches in areas often overlooked by larger pharmaceutical companies [1] CorMedix (CRMD) - CorMedix's lead product, DefenCath, is the first FDA-approved antimicrobial catheter lock solution in the U.S., aimed at reducing catheter-related bloodstream infections in adult patients undergoing chronic hemodialysis [2] - DefenCath generated $78.8 million in net revenues in the first half of 2025, prompting CorMedix to raise its full-year revenue guidance for 2025 [6] - The company plans to expand DefenCath's label into total parenteral nutrition to increase its customer base [7] - CorMedix acquired Melinta Therapeutics for $300 million, adding seven marketed therapies and diversifying its revenue streams [8] - The acquisition of Melinta is a strategic move to mitigate competition in the CRBSI market from established players like Pfizer and Amphastar [10] - The Zacks Consensus Estimate for CorMedix's 2025 sales and EPS indicates a year-over-year increase of approximately 411% and 607%, respectively [19] Mirum Pharmaceuticals (MIRM) - Mirum's lead product, Livmarli, is approved for treating cholestatic pruritus in patients with Alagille syndrome and has generated $161.4 million in net product sales in the first half of 2025, reflecting a 79.1% year-over-year increase [3][14] - Livmarli's sales momentum is expected to continue, supported by a new tablet formulation launched in June 2025 [13] - MIRM's revenue is heavily reliant on Livmarli, making it vulnerable to regulatory setbacks and competitive pressures, particularly from Albireo's Bylvay [18][29] - Mirum's strategic acquisition of Travere Therapeutics' bile acid products has diversified its revenue stream, generating $78 million in the first half of 2025 [17] - The Zacks Consensus Estimate for Mirum's 2025 sales implies a year-over-year increase of around 51%, with a projected 61% narrowing of loss per share [19] Comparative Analysis - Year-to-date, CRMD shares have gained 39.1%, while MIRM shares have increased by 78.7%, compared to a 3.5% return for the industry [24] - MIRM's shares trade at a higher price/book (P/B) ratio of 14.35 compared to CRMD's 3.47, indicating a more expensive valuation [25] - CorMedix is viewed as a stronger investment option due to its expanding product portfolio and growth trajectory, while Mirum's reliance on Livmarli poses risks [27][31]