---
title: "Sector Update: Healthcare Stocks Mixed Premarket Thursday"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/286424958.md"
description: "Healthcare stocks showed mixed performance in premarket trading on Thursday. The State Street Health Care Select Sector SPDR ETF (XLV) rose by 0.2%, while the iShares Biotechnology ETF (IBB) fell by 0.1%. Aveanna Healthcare (AVAH) surged over 9% after reporting increased fiscal Q1 earnings and raising its 2026 revenue guidance. Biogen (BIIB) shares increased by more than 1% despite a phase 2 study not meeting its primary endpoint. MeiraGTx (MGTX) saw a 1% decline following a wider Q1 adjusted loss and falling revenue."
datetime: "2026-05-14T13:14:00.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/286424958.md)
  - [en](https://longbridge.com/en/news/286424958.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/286424958.md)
---

# Sector Update: Healthcare Stocks Mixed Premarket Thursday

09:14 AM EDT, 05/14/2026 (MT Newswires) -- Healthcare stocks were mixed premarket Thursday, with the State Street Health Care Select Sector SPDR ETF ( XLV ) 0.2% higher and the iShares Biotechnology ETF (IBB) declining by 0.1%.

Aveanna Healthcare ( AVAH ) stock was up more than 9% after the company reported higher fiscal Q1 adjusted earnings and revenue, and raised its fiscal 2026 revenue guidance.

Biogen (BIIB) shares were up more than 1% after the company said a phase 2 study evaluating diranersen in patients with early Alzheimer's disease did not meet its primary endpoint evaluating dose response for change from baseline on the Clinical Dementia Rating-Sum of Boxes at week 76.

MeiraGTx ( MGTX ) stock was down 1% after the company posted a wider Q1 adjusted loss as revenue fell during the period.

MT Newswires does not provide investment advice. Unauthorized reproduction is strictly prohibited.

### Related Stocks

- [AVAH.US](https://longbridge.com/en/quote/AVAH.US.md)
- [BIIB.US](https://longbridge.com/en/quote/BIIB.US.md)
- [XLV.US](https://longbridge.com/en/quote/XLV.US.md)
- [IBB.US](https://longbridge.com/en/quote/IBB.US.md)
- [MGTX.US](https://longbridge.com/en/quote/MGTX.US.md)

## Related News & Research

- [Aveanna Healthcare Q1 revenue beats on PDS unit strength](https://longbridge.com/en/news/286405899.md)
- [TD Cowen Sticks to Their Buy Rating for Biogen (BIIB)](https://longbridge.com/en/news/286442023.md)
- [Aveanna Healthcare Issues 2026 Outlook, Highlights Growth](https://longbridge.com/en/news/286570705.md)
- [Apellis Completes Biogen Merger and Goes Private](https://longbridge.com/en/news/286424730.md)
- [UnitedHealth Group Incorporated $UNH Holdings Boosted by GSA Capital Partners LLP](https://longbridge.com/en/news/286878927.md)