Wertpapierkennnummer

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The Wertpapierkennnummer (WKN, WPKN, WPK or Wert) is a German securities identification code. It is composed of six digits or capital letters (excluding I and O), and no check digit.

Contents

Changes in format

There have been several changes in the WKN definition:

The WKNs and DE-ISINs are provided by WM-Datenservice.

WKNs may be obsolete in future, since they may be replaced by International Securities Identification Numbers (ISINs).

Spelling and meaning

Like most very long German words, Wertpapierkennnummer is a compound word: Wert-Papier-Kenn-Nummer, if translated literally, means value–paper–identification–number (Wertpapier = financial security; Kennnummer = identification number).

Before the German spelling reform of 1996 the correct spelling was Wertpapierkennummer with only two consecutive n’s, since the orthography rules allowed the same consonant three times in a row only under special circumstances. Since the reform, the spelling has been Wertpapierkennnummer with three consecutive n’s.

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References

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  3. Struktur und Aufbau der deutschen Wertpapier-Kenn-Nummer (WKN) (PDF), WM-Datenservice, 2012
  4. Körbitzer, K.-P. (27 January 2000), Allgemeine Kundeninformation 2000/02: Reorganisation der deutschen WKN-Systematik (PDF), WM-Datenservice