--- title: "Weekly Recap | IBB.US +2.55%, large-cap data flow lifts sector" type: "News" locale: "en" url: "https://longbridge.com/en/news/300179243.md" description: "IBB gained 2.55% this week to close at $209.77, outperforming the S&P 500 by about 1.34 percentage points. The move was front-loaded: the fund opened at $205.71 on Monday, pushed toward $211.83 on Tuesday, pulled back to $206.60 on Wednesday, then stabilised above $209 through Thursday and Friday. Weekly amplitude was 3.69%. Daily turnover averaged 1.59 million shares, about 4.34% above the 60-day median, so activity was modestly elevated." datetime: "2026-09-26T04:25:19.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/300179243.md) - [en](https://longbridge.com/en/news/300179243.md) - [zh-HK](https://longbridge.com/zh-HK/news/300179243.md) generator: "portal-rs" --- # Weekly Recap | IBB.US +2.55%, large-cap data flow lifts sector ## The Week IBB gained 2.55% this week to close at $209.77, outperforming the S&P 500 by about 1.34 percentage points. The move was front-loaded: the fund opened at $205.71 on Monday, pushed toward $211.83 on Tuesday, pulled back to $206.60 on Wednesday, then stabilised above $209 through Thursday and Friday. Weekly amplitude was 3.69%. Daily turnover averaged 1.59 million shares, about 4.34% above the 60-day median, so activity was modestly elevated. Price sits above the 20-day moving average of $207.55, with the 60-day line at $200.32 providing support below. ## Sector News The sector was driven by a dense run of clinical updates from large-cap names. Amgen’s dazodalibep hit its primary endpoint in a Phase 3 Sjögren’s trial, Vertex reported that inaxaplin reduced UACR by 42.7% in APOL1-mediated kidney disease, and Moderna delivered positive Phase 3 results for intismeran while preparing a cancer vaccine filing. Natera’s Signatera won Japan PMDA approval as a companion diagnostic in muscle-invasive bladder cancer. RBC noted that AI weakness appeared to be feeding a rotation into biotech stocks. Moves were mixed at single-stock level, with Illumina up midweek but softer against peers on Friday, while Regeneron entered the obesity race with a new Phase 1 study. ## The Week Ahead Dallas Fed manufacturing activity is due on 28 September (prior 11.6). The 29th brings FHFA house prices, Case-Shiller 20-city data, JOLTS job openings (prior 7.271 million) and consumer confidence (prior 89.4, forecast 90). Resilient employment and consumption prints could shift how markets assess risk appetite for biotech. Keep an eye on follow-through from this week’s data, particularly the regulatory pathway for Amgen’s Sjögren’s candidate and Moderna’s planned cancer vaccine submission. ## In Short This week’s rise in IBB coincided with a batch of successful clinical readouts from Amgen, Vertex and Moderna. Valuation sits at roughly 33x P/E and 1.71x P/B, in the upper part of its recent 60-day range. On the latest trading day, large-lot flow was a net seller while medium and small orders were net buyers, pointing to mixed positioning. The question ahead is whether the clinical catalyst run can extend, and whether labour and consumer data on 29 September alter the pricing of growth-sensitive names. *This article is generated by LongbridgeAI from market data, for information only and not investment advice.* ### Related Stocks - [IBB.US](https://longbridge.com/en/quote/IBB.US.md) ## Related News & Research - [](https://longbridge.com/en/news/285081451.md) - [Time to Nibble on MCD Stock After it Enters Oversold Territory?](https://longbridge.com/en/news/300812314.md) - [2 of the Best Warren Buffett Stocks for a Lifetime of Passive Income](https://longbridge.com/en/news/300803278.md) - [Cathie Wood Is Buying Rocket Lab Again: Why 3 ARK ETFs Are Betting on Neutron](https://longbridge.com/en/news/300816393.md) - [ARK's Winton says each Starship launch could add $700 million a year](https://longbridge.com/en/news/300832406.md) --- > **Disclaimer: This article is for reference only and does not constitute any investment advice.**