The JASDAQ Securities Exchange (ジャスダック証券取引所 Jasudakku Shōken Torihikisho?) was an exchange headquartered in Tokyo, Japan, now the name of the market by the Osaka Securities Exchange in Kitahama, Osaka.
JASDAQ is not related to NASDAQ in the United States, but operates an electronic trading system similar to NASDAQ.
In 1963, the Japan Securities Dealers Association (日本証券業協会 Nippon Shōkengyō Kyōkai?) set up an over-the-counter registration system for trading securities. This system was placed under the management of a private company, Japan OTC Securities (日本店頭証券 Nippon Tentō Shōken?) in 1976.
The JASDAQ automated quotation system became operational in 1991.
In 2004, JASDAQ received a permit from the Prime Minister to reorganize as a securities exchange. It became the first new securities exchange in Japan in almost fifty years.