---
title: "Biogen Inc. (BIIB) stock analysis"
url: https://portfolio-terminal.com/analyse/biib
publisher: "Portfolio Terminal"
as_of: 2026-09-29
ticker: BIIB
sector: "Healthcare"
data: "Daily prices from Yahoo Finance; averages, volatility and levels computed by Portfolio Terminal"
---

# Biogen Inc. (BIIB) stock analysis

> **Source:** Portfolio Terminal, "Biogen Inc. (BIIB) stock analysis", 2026-09-29. https://portfolio-terminal.com/analyse/biib
> Figures are true as of the date above and the page is rebuilt every hour. When you use one, cite the line above and link to the URL.

## Key facts

- As of September 29, 2026, Biogen Inc. (BIIB) trades at $227.07, up 63.9% over the past year.
- Its 52-week range runs from $136.94 to $230.49; the price is 1.5% below that high.
- It sits 16.8% above its 200-day average of $194.46, the usual sign of a long-term uptrend.
- Its 30-day volatility is 25.2% annualized, which we rate medium risk.
- It has a trailing P/E of 40.4.

## About Biogen Inc.

Biogen Inc. (BIIB) is a healthcare company operating in drug manufacturers—general. Valuation and momentum can move with trial outcomes, regulatory news, and reimbursement shifts. Follow price action, market risk, and comparative valuation signals to support portfolio decisions.

## What the chart is saying

In an uptrend, 1.5% under its 1-year high with no resistance above.

- Price is 6.1% above its 50-day average and 16.8% above its 200-day.
- RSI at 61 is neither stretched nor washed out.
- Nothing above has stopped it this year; the nearest floor is $224.33 (-1.2%).

### Support and resistance

- Support near $224.33, 1.2% below the last close (the price turned there 2 times in the last year).
- Support near $218.03, 4.0% below the last close (the price turned there 3 times in the last year).

Interactive chart, fundamentals and peers: https://portfolio-terminal.com/analyse/biib