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| Quarter | Letter Date | Fund Name | QTD | YTD | Tickers | Themes | Quick Take |
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"Accelerating pharmaceutical patent expiries and pipeline failures are driving historic acquisition demand, anchoring biotechnology fundamentals even as benchmark Treasury yields surpass five percent."
RTW Biotech Opportunities Ltd recorded a NAV per share return of -5.6% net of fees in the third quarter of 2026, outperforming the Russell 2000 Biotech Index (-2.8%) while trailing the Nasdaq Biotech Index (+8.5%). Year-to-date net NAV return reached +10.0%, with ordinary share price returns standing at +10.2% net of fees. At quarter-end, the fund's gross economic sub-portfolio exposures stood at 89.1% in public equities, 19.8% in private holdings, and 2.0% in royalties. The share price discount to NAV narrowed substantially from 27.5% to 11.8% over the trailing twelve months, aided by disciplined capital allocation and $13.4 million in share buybacks. Macroeconomic cross-currents featured the Federal Reserve raising interest rates by 25 basis points in September, pushing 10-year Treasury yields above 5%. RTW anticipates interest rate shifts will exert less pressure on biotechnology valuations than in prior cycles, noting the sector's positive correlation (+0.84) to Treasury yields and growing reliance on idiosyncratic clinical catalysts and earnings. Concurrently, pharmaceutical M&A is tracking toward its strongest year since 2019, driven by an acute patent expiry wave and large-cap pharma pipeline setbacks. Capital markets remained active with 22 year-to-date IPOs, alongside stabilized FDA regulatory leadership. Portfolio activity was marked by significant clinical readouts and targeted capital deployment. Ultragenyx and uniQure detracted from performance following clinical trial setbacks in Angelman Syndrome and Huntington's disease, respectively. Offsetting these headwinds, top contributors included UroGen, Oruka, and Spyre. RTW deployed an additional $4.1 million into private portfolio company Encoded Therapeutics as part of its $275 million Series F round, while maintaining top core holdings across oncology, immunology, and rare disease commercial leaders.
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