The Greedy Trader Weekly Analysis
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Biotechnology Industry Stocks Technical Analysis - BIIB

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- 7/31/2026 -
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BIOGEN IDEC INC (BIIB) Technical Analysis

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Summary:
Weekly :Overbought sector
Daily :A Parabolic SAR indicator is above and near the priceDaily  MACD line has moved above its signal lineThe price has declined below the moving average in the center of the Bollinger Bands
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It was a first positive week for the BIOGEN IDEC INC (BIIB). During the week, the BIIB climbed 0.76 points, or 0.38%, and closed at 202.95 on Friday, July 31, 2026. Weekly volume was -9% below average.

BIIB is a member of Health Care Sector. Health Care is the most overbought sector. Sector/industry rotation is considered a proven strategy to beat the market. Use the following links to find overbought/oversold technical indicators by Sector or by Industry.

Long-term trend: [See BIIB long-term trend chart]
A long-term uptrend had started on April 9, 2025 at 110.00 and reached 219.72 on June 29, 2026. BIIB gained -109.72 points, or -99.75%, in 63 weeks. The price is now at the 15.28% retracement level.

Medium-term trend: [See BIIB medium-term trend chart]
A medium-term uptrend had started on April 6, 2026 at 168.64 and reached 219.72 on June 29, 2026. BIIB gained -51.08 points, or -30.29%, in 12 weeks. The price is now at the 32.83% retracement level.

Weekly Technical Indicators: [See BIIB weekly technical indicators chart]
Weekly technical indicators are neutral.

The weekly MACD line is above its signal line since June 18, 2026. This is an indication that the medium-term trend is up. The distance between MACD and the signal line is low and getting smaller. It indicates that the current medium-term uptrend is getting weak. Use the following link to access a MACD help.

Short-term trend: [See BIIB short-term trend chart]
A short-term uptrend had started on July 15, 2026 at 186.03 and reached 218.59 on July 29, 2026. BIIB gained -32.56 points, or -17.50%, in 14 days. The price is now at the 48.03% retracement level.

Daily Technical Indicators: [See BIIB daily technical indicators chart]
Daily technical indicators are neutral.

During the last week, daily MACD line has moved above its signal line. Such crossover is considered a bullish signal.

A Parabolic SAR (stop and reversal) indicator (201.89) comes close to the price (202.95). It indicates that the trend is getting weaker. A Parabolic SAR is used as a trailing stop loss for long or short positions. It works best during strong trending periods. Use the following links to access Parabolic SAR Help, or use the Technical Stock Screener to see the list of stocks with the Parabolic SAR close to the price level.

During the last week, the price has declined below the moving average in the center of the Bollinger Bands. The Bollinger Bands are often used with a non-oscillator indicator like chart patterns or a trendline. The signals are considered more reliable if these indicators confirm the recommendation of the Bollinger Bands. Use the following links to access the Bollinger Bands Help, or use the Technical Stock Screener to see the list of stocks with the price above the Upper Bollinger Band or below the Lower Bollinger Band.

Daily Oscillators
Description Value Status Divergence Chart
Relative Strength Index (RSI) 45.87
Williams' Percentage Range (W%R) 34.00
Lane's Stochastic (%D-Slow) 46.94
Greed/Fear Indicator (GFI) 52.93
Moving Average Converg./Diverg. (MACD) 0.82
Weekly Oscillators
Description Value Status Divergence Chart
Relative Strength Index (RSI) 63.38
Williams' Percentage Range (W%R) 23.90
Lane's Stochastic (%D-Slow) 58.79
Greed/Fear Indicator (GFI) 62.62
Moving Average Converg./Diverg. (MACD) 8.19
Trading Signals
Description Value Chart
Upper Bollinger Band 212.63
Daily Stochastic Crossing 207.06
Weekly Stochastic Crossing 203.31
Price 202.95
20 Day Moving Average 202.76
Parabolic System 201.89
50 Day Moving Average 200.52
Lower Bollinger Band 194.05
Sector and Industry
Description Name Rank
Sector Health Care 11
Industry Biotechnology 87
Daily Trend
Description Value
Direction Up
Chart Pattern Uptrend
Low 196.92
Low Date 07/23/2026
High 218.59
High Date 07/29/2026
Weekly Trend
Monthly Trend
Description Value
Direction Up
Chart Pattern Uptrend
Status
Resistance
Support
Low 186.03
Low Date 07/15/2026
High 218.59
High Date 07/29/2026
Description Value
Direction Up
Chart Pattern Uptrend
Status
Resistance
Support
Low 168.64
Low Date 04/06/2026
High 219.72
High Date 06/29/2026
Quarterly Trend
Yearly Trend
Description Value
Direction Up
Chart Pattern Uptrend
Status
Resistance
Support
Low 110.00
Low Date 04/09/2025
High 219.72
High Date 06/29/2026
Description Value
Direction Down
Chart Pattern DownTrend
Status
Resistance
Support
High 480.18
High Date 03/20/2015
Low 110.00
Low Date 04/09/2025
Warning: TheGreedyTrader.com presents weekly analysis. Technical indicators and trend parameters are calculated for the close of business day indicated on the top right corner of the screen.