Hindsight Market

The Graveyard › 2020

Achillion Pharmaceuticals

ACHN · Chemicals & Drugs · NASDAQ · in our data October 25, 2006 to January 27, 2020 (13.3 years)

The first trading day in our data for Achillion Pharmaceuticals is October 25, 2006 (its first day in our records, which may be later than its listing and is not its founding). At its peak, on January 23, 2015, the market valued it at $1.7 billion. It left the market when it was bought or merged, last trading at $6.76, -65.5% from its split-adjusted high. Holders got whatever the deal paid, which is not in our price data.

2006-102020-01
Peak market value$1.7 billionJanuary 23, 2015
Highest split-adjusted share price$19.61February 1, 2007
Last share price$6.76January 27, 2020
From its split-adjusted high to the end-65.5%
Return over the days in our data-45.4%with dividends, before the last trade
Worst single day-58.3%September 30, 2013

Share prices are adjusted for splits and other share changes, so the high and the last price compare like for like; the peak market value is as it was on the day. The return covers the trading days in our data only: it does not include what holders received, or lost, after the last trade (a merger payout, a bankruptcy), and it does not reach back before 2006.

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Also gone in 2020: Chemicals & Drugs