BIIBBIOGEN INC.

Historical statistic over past daily data — how this rule behaved before, not a prediction or advice.

Trailing return vs the S&P 500 (SPY) — positive means it outperformed the market.

Trailing price performance vs SPY — a disclosed historical statistic, not a forecast or advice. Delayed data.

How the price has historically moved around past earnings announcements.

A ~2-session move spanning each earnings date — a disclosed historical statistic, not a forecast or advice. Delayed data.

Percentile rank vs Tickwind’s tracked universe — higher = stronger on that factor.

Percentile rank vs Tickwind’s tracked universe. The letter grades are a plain relabeling of these descriptive percentiles; the headline Quant Rating is a disclosed mechanical mapping of the composite percentile — a relative quantitative signal, not personalized investment advice. Delayed data.

Two published academic scores computed from SEC filings — itemized, descriptive, not a rating.

Computed from SEC XBRL filings via published academic formulas (Piotroski 2000; Altman 1968). Zone names are the papers’ published band labels. Descriptive — not a rating, prediction, or investment advice.

Average return by calendar month over the available years.

Historical average monthly returns — a disclosed statistic, not a forecast or advice. Delayed data.