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KOSNhistorical intraday data

DelistedKosan Biosciences Inc

Kosan Biosciences Inc (KOSN) was delisted on June 27, 2008. Its last trading day on file was June 26, 2008. KOSN has 1,208 trading days on file, from September 10, 2003 to June 26, 2008, with 638,420 trades. There are 179,494 1-minute bars on file.

On file

First day
2003-09-10
Last day
2008-06-26
Trading days
1,208
Trades
638,420
1-minute bars
179,494
Bars, about
2.7 MB
Trades, about
8.8 MB
Quotes, about
23 MB

Sizes are approximate: this ticker’s share of the Parquet files.

Trading history

Trades per calendar year. Busiest year: 2007, with 181,803 trades over 251 trading days.

Symbols get reused, so the history under KOSN is not always one company.

KOSN by year

YearTrading days on fileTrades
20037910,956
200425299,689
2005252133,703
200625181,189
2007251181,803
2008123131,080