Dematerialization (securities)

In finance and financial law, dematerialization refers to the substitution of paper-form securities by book-entry securities. This is a form of indirect holding system where an intermediary, such as a broker or central securities depository holds a record of the ownership of shares usually in electronic format.[1][2] The dematerialization of securities such as stocks has been a major trend since the late 1960s, with the result that by 2010 the majority of global securities were held in dematerialized form.


Although the phenomenon is ancient, since book entry systems for recording securities have been noted from civilisations as early as Assyria in 2000 BC, it gained new prominence with the advent of computer technology in the late 20th century. Even during the period when paper certificates were popular, book-entry systems continued since many small firms could not afford printing secured paper-form securities. These book-entry securities were often held under the control of an attorney who acts as a notary to certify the existence of the securities, as well as their authenticity.

Since the 1960, dematerialization has effected more and more listed companies in the US and more recently in the European Union, where dematerialized securities represent often more than 99% of the securities listed on regulated markets.[3]

However, the phenomena of dematerialization of securities issued by large firms is mostly undertaken via Central Securities Depository, a national or regional institution holding the notary function, such as the Depository Trust Company (DTC) in the United States, which itself entrusts banks and investment firms to act as intermediaries between issuers and investors for the custody of these securities.[4] Therefore, dematerialized securities are often referred as intermediated securities, in particular by the Unidroit convention on substantive rules for intermediated securities.

See also


  1. "What Is Dematerialization?". ICICI Bank. Retrieved December 21, 2015.
  2. Erica Johansson (2009). Property Rights in Investment Securities and the Doctrine of Specificity. p. 41. ISBN 978-3-540-85903-1.
  3. Summary of responses received in respect of the EU consultation on legal certainty of securities holding and transactions:
  4. "A proposal to fully dematerialize physical securities" (PDF). DTCC. July 2012.
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