BIIBBiogen

$225.73+57% 1Y

Is it safe?

Mixed

Solid, nothing alarming. No accounting flags, quality moderate.

2 good, 3 neutral, 1 without data
Honest booksLow risk

Reported earnings show no manipulation flags Beneish M-score, a forensic model that detects earnings-manipulation patterns (receivables outrunning sales, margins slipping, accrual-heavy profit).

Quality5 / 9

Mixed fundamental signals Piotroski F-score, nine pass/fail tests of year-over-year financial health across profitability, balance sheet and efficiency. 7 to 9 is strong, 0 to 3 weak.

Insider conviction-$240K

Insiders were net sellers (-$240K, 90 days to Oct 8, 2026), selling is often routine.

Credit gradeAAderived · Mar 31, 2026

Rock-solid balance sheet, low leverage. A rule of thumb on leverage, not a credit rating.

Drawdown risk32% volderived · Oct 9, 2026

Moderate price swings, typical volatility. Worst drawdown -73% · now at/near its 52-week high.

Unless marked, from SEC EDGAR, as of Dec 31, 2025.

Against the whole market›

Percentile against every name Ryufin tracks. Higher is better; the tick marks the middle of the market. Context, not one of the checks above.

Volatilitybetter than 69% of the market
Max drawdownmiddle of the market

Where this answer is blind. Altman sits structurally low for utilities and pipelines; Beneish runs high for fast growers, since sales growth alone lifts it; banks and REITs are excluded.

Can BIIB take a bad year?

Biogen carries $2.01B of net debt at 0.93× EBITDA: a load its earnings can carry.

$2.01B

Net debt · as at Q1 2026 · under two and a half years of EBITDA, comfortable

Net debt / EBITDA
0.93×

Net debt / EBITDA · 1.63× a year ago · the load is coming down

Interest cover
5.90×

Interest cover · operating profit covers the interest bill several times over

Annualised volatility
32%

Annualised volatility · about as steady as the market itself

Details›
Total debtQ1 2026
$6.29B
Cash and short-term investments
$4.28B
Net debt
$2.01B
EBITDA, trailing twelve months
$2.16B
Operating profit, trailing twelve months
$1.62B
Debt / equity
0.34×
Total debt / EBITDA
2.91×
Annualised volatilitytwo years of daily moves
32%
Worst drawdown on file
−73%
Below its 52-week high
1.3%

Balance sheet from SEC filings; drawdown and volatility from end-of-day closes; Altman Z from the filed statements.