[2][3][4] Founded in 1863,[5] it has become the primary securities exchange of the Nordic countries.

As of March 2021, a total of 832 companies are listed on Nasdaq Stockholm with 385 companies on the main market and additional 447 listed on secondary markets (Nasdaq First North and Nasdaq First North Premier).

After OM merged with the Helsinki Stock Exchange to form what is now OMX in 2003, the Stockholm and Helsinki exchanges' operations were merged.

As of October 2014, the exchange operated under the legal name Nasdaq OMX Stockholm AB (renamed Nasdaq Stockholm AB in 2015).

[8] Its normal trading sessions are from 09:00 to 17:30 on all days of the week except Saturdays, Sundays and holidays declared by the Exchange in advance.