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Quandl, Inc.
Type of businessPrivate
Type of site
Available inEnglish
HeadquartersToronto, Canada
Area servedWorldwide
  • Tammer Kamel
  • Abraham Thomas
Key people
  • Tammer Kamel (CEO)
  • Abraham Thomas (CDO)
ProductsQuandl Data Marketplace
ServicesData subscriptions
Launched1 January 2013; 6 years ago (2013-01-01)
Written inRuby and Python[citation needed]

Quandl (/ˈkwɑːndəl/) is a platform for financial, economic, and alternative data that serves investment professionals. Quandl sources data from over 500 publishers.[1] All Quandl's data are accessible via an API.[2] API access is possible through packages for multiple programming languages including R, Python, Matlab, Maple and Stata.[3][4]

An Excel add-in allows access to data, including stock price information.

Quandl's sources include open data from providers such as the UN, Worldbank and central banks; core financial data from providers such as CLS Group, Zacks, and ICE; and alternative data from Dun & Bradstreet, along with numerous confidential sources.[5][6]


Quandl is based in Toronto, Canada and was founded in 2011 by Tammer Kamel and Abraham Thomas.[7] In September 2012, Quandl raised an undisclosed round of seed funding, followed by a $5.45mn Series A from August Capital in October 2013. The company's Series B for $15mn closed in July 2016 and was led by Nexus Venture Partners.[8][9]

Since its launch, Quandl has been discussed as a disruptor in the traditional financial data sector.[10] With over 400,000 users,[11] Quandl has been considered an alternative to the Bloomberg Terminal and Thomson One.[12][13]

In December 2018, Nasdaq acquired Quandl and announced plans to combine Quandl with its Analytics Hub business within Nasdaq Global Information Services. Quandl will retain its brand name and leadership.[14][15]


Quandl is a provider of alternative data products.[16] Quandl sells alternative datasets, defined as "any data that is not typically made available to Wall Street firms by traditional sources".[16] Quandl "sources, evaluates and productizes undiscovered data" and then sells it to financial institutions, who use it to enhance their trading strategies.[17]

Quandl also offers market data through its marketplace. Some data sets are free while others require a subscription. Different datasets have different prices. The company contains hundreds of databases and providers, ranging from stock price history to global fundamentals to commodities data to Asian market data.[18]

Quandl has an exclusive relationship with CLS Group in London, and is the only source of commercial FX volume data[19]


  1. ^ "Quandl - Product Hunt". Product Hunt. Retrieved 2016-09-01.
  2. ^ "Quandl Package - 5,000,000 free datasets at the tip of your fingers!". EconBS. 5 May 2013.
  3. ^ Machlis, Sharon (8 March 2013). "Quandl: Wikipedia for data". Computer World.
  4. ^ "Full list of tools supported on Quandl".
  5. ^ Harris, Derrick (31 May 2013). "It's a beautiful thing when free data meets free analytics". Gigaom.
  6. ^ "Quandl Data Sources".
  7. ^ "Quandl Financial and Economic Data". www.quandl.com. Retrieved 2016-09-01.
  8. ^ "Quandl | CrunchBase". www.crunchbase.com. Retrieved 2016-09-01.
  9. ^ Gage, Deborah. "Quandl Raises $5.4 Million for Its Financial-Data Marketplace". Retrieved 2016-09-01.
  10. ^ "Can the Bloomberg Terminal be "Toppled"?". Matt Turck. 2014-03-19. Retrieved 2016-09-01.
  11. ^ Salzman, Avi. "Nasdaq Dives Into Alternative Data". www.barrons.com. Retrieved 2019-01-15.
  12. ^ AbleMarkets.com, Irene Aldridge Quantitative portfolio manager; MD at; speaker; author; Trading', 'High-Frequency (2016-01-22). "Blindsided by innovation like Bloomberg? Don't become a statistic". The Huffington Post. Retrieved 2016-09-01.
  13. ^ "Quandl: A Marketplace for Financial Data". Retrieved 2016-09-01.
  14. ^ Baert, Rick; Baert, Rick (2018-12-04). "Nasdaq acquires alts data provider Quandl". Pensions & Investments. Retrieved 2019-01-15.
  15. ^ "Subscribe to read". Financial Times. Retrieved 2019-01-15.
  16. ^ a b "Quandl Embarks on Quest for Alternative Data". Retrieved 2016-09-01.
  17. ^ "Quandl Financial and Economic Data". www.quandl.com. Retrieved 2016-09-01.
  18. ^ "Quandl Financial and Economic Data". www.quandl.com. Retrieved 2016-09-01.
  19. ^ "Quandl Adds CLS FX Trade, Volume Data to Online Platform". Retrieved 2016-09-01.