Biogen (BIIB, $291.61) shares slump, amidst reports of patient death in Eisai Alzheimer's death
Biogen shares plunged on Monday, following reports that a woman who participated in a trial of the drugmaker's developing Alzheimer's treatment died due to a brain hemorrhage. The company is developing the drug with Eisai Co.
According to Science.org, the case involved a 65-year-old woman who died of a massive brain hemorrhage following a stroke and a type of brain swelling and bleeding in a trial of Eisai. The report mentioned that the bleeding started after the patient received an anti-clotting drug.
Biogen and Eisai have published very limited data from the trial. More results are expected to be presented at a conference this week.
BIIB sees MACD Histogram just turned negative
BIIB saw its Moving Average Convergence Divergence Histogram (MACD) turn negative on July 16, 2025. This is a bearish signal that suggests the stock could decline going forward. Tickeron's A.I.dvisor looked at 54 instances where the indicator turned negative. In of the 54 cases the stock moved lower in the days that followed. This puts the odds of a downward move at .
Technical Analysis (Indicators)
Bearish Trend Analysis
The Momentum Indicator moved below the 0 level on July 16, 2025. You may want to consider selling the stock, shorting the stock, or exploring put options on BIIB as a result. In of 90 cases where the Momentum Indicator fell below 0, the stock fell further within the subsequent month. The odds of a continued downward trend are .
Following a 3-day decline, the stock is projected to fall further. Considering past instances where BIIB declined for three days, the price rose further in of 62 cases within the following month. The odds of a continued downward trend are .
Bullish Trend Analysis
The Stochastic Oscillator is in the oversold zone. Keep an eye out for a move up in the foreseeable future.
BIIB moved above its 50-day moving average on July 16, 2025 date and that indicates a change from a downward trend to an upward trend.
Following a 3-day Advance, the price is estimated to grow further. Considering data from situations where BIIB advanced for three days, in of 259 cases, the price rose further within the following month. The odds of a continued upward trend are .
The Aroon Indicator entered an Uptrend today. In of 138 cases where BIIB Aroon's Indicator entered an Uptrend, the price rose further within the following month. The odds of a continued Uptrend are .
The Tickeron Price Growth Rating for this company is (best 1 - 100 worst), indicating fairly steady price growth. BIIB’s price grows at a lower rate over the last 12 months as compared to S&P 500 index constituents.
The Tickeron SMR rating for this company is (best 1 - 100 worst), indicating weak sales and an unprofitable business model. SMR (Sales, Margin, Return on Equity) rating is based on comparative analysis of weighted Sales, Income Margin and Return on Equity values compared against S&P 500 index constituents. The weighted SMR value is a proprietary formula developed by Tickeron and represents an overall profitability measure for a stock.
The Tickeron Valuation Rating of (best 1 - 100 worst) indicates that the company is significantly overvalued in the industry. This rating compares market capitalization estimated by our proprietary formula with the current market capitalization. This rating is based on the following metrics, as compared to industry averages: P/B Ratio (2.110) is normal, around the industry mean (5.632). P/E Ratio (26.955) is within average values for comparable stocks, (48.974). BIIB's Projected Growth (PEG Ratio) (8.807) is slightly higher than the industry average of (3.004). Dividend Yield (0.000) settles around the average of (0.161) among similar stocks. P/S Ratio (3.181) is also within normal values, averaging (3.643).
The Tickeron PE Growth Rating for this company is (best 1 - 100 worst), pointing to worse than average earnings growth. The PE Growth rating is based on a comparative analysis of stock PE ratio increase over the last 12 months compared against S&P 500 index constituents.
The Tickeron Profit vs. Risk Rating rating for this company is (best 1 - 100 worst), indicating that the returns do not compensate for the risks. BIIB’s unstable profits reported over time resulted in significant Drawdowns within these last five years. A stable profit reduces stock drawdown and volatility. The average Profit vs. Risk Rating rating for the industry is 81, placing this stock worse than average.
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General Information
a manufacturer of therapies for people living with neurological, autoimmune and hematologic disorders
Industry PharmaceuticalsMajor
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