BridgeBio's founder saw biotech VCs exclusively funding high-risk "home run" platforms. He built a company to acquire therapies for smaller rare genetic diseases—"singles and doubles"—that were ignored. Aggregating these de-risks the portfolio and creates a major market opportunity.

Recent large financing rounds, like Soli's $200M Series C and Parabillus's $305M Series F, are predominantly for companies with proprietary discovery platforms rather than single-asset biotechs. This indicates investor confidence in technologies that can generate a pipeline of multiple future therapies, valuing repeatable innovation over individual drug candidates.

Unlike tech investing, where a single power-law outlier can return the entire fund, biotech wins are smaller in magnitude. This dynamic forces biotech VCs to prioritize a higher success rate across their portfolio rather than solely hunting for one massive unicorn.

While an operating company must commit to a single, coherent strategy, a venture portfolio can invest in opposing models simultaneously (e.g., big vs. small models, open vs. closed source). This allows VCs to win regardless of which future unfolds.

The dominant VC narrative demands founders focus on a single venture. However, successful entrepreneurs demonstrate that running multiple projects—a portfolio approach mirrored by VCs themselves—is a viable path, contrary to the "focus on one thing" dogma.

Biotech companies create more value by focusing on de-risking molecules for clinical success, not engineering them from scratch. Specialized platforms can create molecules faster and more reliably, allowing developers to focus their core competency on advancing de-risked assets through the pipeline.

Rion structures itself as a central "hub" with core technology, then creates separate "spoke" companies for verticals like veterinary or cosmetics. These spokes raise their own targeted capital, allowing Rion to fund platform development without constant dilution at the parent company level and diversifying funding risk.

This structure offers fundraising flexibility by appealing to two distinct investor types. Some investors prefer the diversified, lower-risk profile of the central hub, while others want direct exposure to a specific high-potential asset or disease area within a subsidiary spoke. This broadens the potential capital pool.

FCDI launched multiple clinical-stage companies (Century, Opsis, Kenai) by providing a proven iPSC technology backbone. This "platform and spinout" model allows new ventures to focus on clinical development rather than early platform discovery, increasing their chances of success and attracting partners.