Hindsight Market

The Graveyard › 1999

Quantum

QMCO · Machinery & Computers · NASDAQ · in our data December 10, 1982 to August 3, 1999 (16.6 years)

The first trading day in our data for Quantum is December 10, 1982 (its first day in our records, which may be later than its listing and is not its founding). At its peak, on September 29, 1997, the market valued it at $5.8 billion. It left the market when it was bought or merged, last trading at $23.19, -45.4% from its split-adjusted high. Holders got whatever the deal paid, which is not in our price data.

1982-121999-08
Peak market value$5.8 billionSeptember 29, 1997
Highest split-adjusted share price$42.44September 29, 1997
Last share price$23.19August 3, 1999
From its split-adjusted high to the end-45.4%
Return over the days in our data+822.4%with dividends, before the last trade
Worst single day-20.8%October 20, 1987

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 1982.

Could you have seen it coming? Play Dot-com

Also gone in 1999: Machinery & Computers