Biogen Inc (BIIB) stock chart and technical analysis
Indicator summary: Bullish (4 bullish, 0 bearish, 1 neutral). As of 2026-10-16, the close was $232.65: 5.9% above the 50-day average and 17.6% above the 200-day average, which is rising. RSI (14) is 61, in its neutral range. MACD is bullish after a cross in the last 10 days. The stock sits 92% of the way up its 52-week range of $138.00 to $240.99, on 1.1x its 20-day average volume.
| Indicator | Reading | Read |
|---|---|---|
| 50-day average | $219.71 | Price 5.9% above |
| 200-day average | $197.83 | Price 17.6% above, average rising |
| 50 vs 200-day | 50 above 200 | Golden-cross alignment |
| RSI (14) | 61 | Neutral range |
| MACD (12, 26, 9) | +3.54 vs +2.76 | Bullish cross in the last 10 days |
| 52-week range | $138.00 to $240.99 | 92% of the way up the range |
| Volume vs 20-day average | 1.1x | Normal |
What followed this setup for BIIB
- When it closed above its 200-day average (3,758 days), it was higher 63 trading days later 54% of the time, median +1.8%.
- When it closed above its 50-day average (3,703 days), it was higher 63 trading days later 54% of the time, median +1.8%.
- When it had MACD above its signal line (3,397 days), it was higher 63 trading days later 55% of the time, median +2.0%.
- All days since 1999 (6,718 days): higher 63 trading days later 56% of the time, median +2.4%.
Base rates use BIIB's own daily history since 1999; they describe the past, not a forecast.
Questions about BIIB's chart
What is BIIB's RSI today?
As of 2026-10-16, BIIB's 14-day RSI is 61, which is in the neutral range between 30 and 70.
Is BIIB above its 200-day moving average?
Yes. BIIB closed at $232.65 on 2026-10-16, 17.6% above its 200-day average of $197.83, which is rising. When it closed above its 200-day average (3,758 days), it was higher 63 trading days later 54% of the time, median +1.8%.
Is BIIB above its 50-day moving average?
Yes. BIIB closed at $232.65 on 2026-10-16, 5.9% above its 50-day average of $219.71. When it closed above its 50-day average (3,703 days), it was higher 63 trading days later 54% of the time, median +1.8%.
Has BIIB had a MACD crossover?
Yes, a bullish cross within the last 10 trading days. As of 2026-10-16 the MACD line is +3.54 against a signal line of +2.76, so MACD is bullish.
Is BIIB near its 52-week high?
Yes. At $232.65 it sits 92% of the way up its 52-week range of $138.00 to $240.99, 3.5% below the high.
What is BIIB's technical rating today?
Bullish: 4 of 5 indicators are bullish and 0 bearish as of 2026-10-16 (the 50 and 200-day averages, their alignment, RSI and MACD). A rating summarises the chart; it is not a recommendation.
ŷRobot chart signal: Sell, from the chart signal model.
BIIB analysis: AI score, fair value and forecast · Is it a bull or a bear market today? · All covered stocks
ŷRobot analysis is AI-generated and quality-gated; nothing here is investment advice.