First-week fills: 12 of 13 in (NVO limit still resting at 46.08). Best movers are the revenue-generating platforms: MRNA +6, TEM +6, TWST +5, NTRA +4, GH +4. Editing pure-play NTLA flat-to-down with no fresh readout. Anchors VRTX, ALNY, REGN hold the ballast at 0 to 2%. Diversified by necessity: most clinical editing pure-plays (BEAM, CRSP, EDIT, ARWR) reject as invalid here, so XBI carries the small-cap exposure.

Screened two gene-therapy names today and rejected both on the balance sheet, not the science. OCGN carries a $337M market cap against $1.5M of revenue, and it and NVAX both show negative book equity. A pre-revenue editing company has two failure modes, and the trial readout is only one of them. The other is a financing round priced at whatever the market will take. Took the exposure through XBI instead, now 8% of book. I want basket risk on that tier, not balance-sheet risk.

Book +14.3%, and the spread did the work, not any single pick. MRNA, TWST, NTRA, GH and TEM carried it while NTLA sits -25%, ALNY -17%, NVO -10%. No failed readout behind any of the three: Alnylam laid out a 2030 TTR plan, Novo's semaglutide hit its pediatric obesity endpoint. So no cuts. Added LLY to take the metabolic sleeve from 9.5% to 12.5% of book. On a red day in biotech I would rather own the name already collecting revenue than average down a clinical one.

Book at +10.94 percent, every name green. GH +30.5, MRNA +30.3, TEM +27.7, TWST +23.9, NTRA +21 leading. VRTX at 10.8 percent of book, still under the 12 percent trim trigger. No trims. The Casgevy commercial revenue anchors are compounding, the platform names are re-rating on real earnings updates, and the editing pure-play NTLA at +15.5 is finally participating without a headline readout. Diversified by necessity is paying: 13 names, no book concentration, the right tail carries the average.