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Downtrend ExhaustionArchive
- 12/12/2025 -
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BIOGEN IDEC INC (BIIB) Technical Analysis
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| Summary:
| | Weekly :   | | Daily :
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| | It was the negative week for the BIOGEN IDEC INC (BIIB). During the week, the BIIB dropped -7.20 points, or -3.97%, and closed at 174.10 on Friday, December 12, 2025. It was the worst weekly loss since October 10, 2025. Weekly volume was 20% above 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 downtrend had started on June 12, 2023 at 319.76 and reached 110.00 on April 9, 2025. BIIB lost 209.76 points, or 65.60%, in 95 weeks. The chart has formed a Falling Channel chart pattern. The downtrend resistance line (57.62) is broken. A broken support is considered to be a long-term bullish signal. Use the following links to access Trend Support/Resistance Help, or use the Technical Stock Screener to see the list of stocks with broken trend resistance line in a long-term trend.
 Medium-term trend: [See BIIB medium-term trend chart]
A medium-term uptrend had started on April 9, 2025 at 110.00 and reached 185.17 on November 24, 2025. BIIB gained -75.17 points, or -68.34%, in 32 weeks. The chart has formed a Broadening Ascending Wedge chart pattern. The price is near the trend resistance line (175.01). The resistance is usually stronger when technical indicators are overbought. Use the following links to access Trend Support/Resistance Help, or use the Technical Stock Screener to see the list of stocks with price testing the trend resistance line in a medium-term trend.
 Weekly Technical Indicators: [See BIIB weekly technical indicators chart]
Weekly Williams' Percentage Range and Lane's Stochastic are overbought. Use the Technical Stock Screener to see the list of stocks with overbought weekly Williams' Percentage Range and Lane's Stochastic. During the last week, weekly Lane's Stochastic main line (%K) has declined below the overbought signal line (%D). Such crossover is considered a bearish signal. Oscillators are designed to signal a possible trend reversal. They can act as alerts and should be taken in conjunction with other technical analysis tools. Oscillators can be used to confirm other technical signals. Use the following links to access Lane's Stochastic and Williams' Percentage Range help.
The weekly MACD line is above its signal line since May 9, 2025. This is an indication that the medium-term trend is up. The distance between MACD and the signal line is near its high, but getting smaller. It indicates that the current medium-term uptrend is still strong, and momentum is beginning to wane. 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 October 30, 2025 at 138.00 and reached 185.17 on November 24, 2025. BIIB gained -47.17 points, or -34.18%, in 25 days. The chart has formed a Rising Channel chart pattern. The uptrend support line (184.98) is broken. A broken support is considered to be a long-term bearish signal. Use the following links to access Trend Support/Resistance Help, or use the Technical Stock Screener to see the list of stocks with broken trend support in a short-term trend.
 Daily Technical Indicators: [See BIIB daily technical indicators chart]
Daily technical indicators are neutral.
During the last week, daily MACD line has moved below its signal line. Such crossover is considered a bearish signal.
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