Data sources
The open data behind Bullrun
Bullrun uses public filings and open data wherever they exist, and this page credits those sources. It is not a complete list: other data providers fill gaps, so not every figure on the site comes from the sources below. How each number is made is on the methodology page.
Companies and funds
Regulatory filings
SEC EDGAR: US company statements, fund fees and holdings, and company events, from filings made to the US Securities and Exchange Commission.
filings.xbrl.org: European and UK company statements, from the annual reports companies file in ESEF format. The figures are the companies' own.
Identifiers
Which company a listing belongs to
ESMA FIRDS: EU instruments and their issuers, from the European Securities and Markets Authority's public register.
GLEIF: legal entity identifiers and their links to ISINs, from the Global Legal Entity Identifier Foundation, published under CC0.
OpenFIGI: financial instrument identifiers, under the MIT licence.
Markets
Economic and market data
European Central Bank: exchange rates and policy rates. The ECB publishes this data free of charge.
Central Bank of the Republic of China (Taiwan): the New Taiwan dollar's exchange rate. Central Bank of the Republic of China (Taiwan) 2026, 銀行間市場新臺幣對美元收盤匯率 (interbank closing rate of the New Taiwan dollar against the US dollar, data.gov.tw dataset 7232). The Open Data is made available to the public under the Open Government Data License, User can make use of it when complying to the condition and obligation of its terms. Open Government Data License.
Federal Reserve Board: US dollar exchange rates and the broad dollar index, from the H.10 release. Source: Board of Governors of the Federal Reserve System.
US Department of the Treasury: US Treasury yields, from its daily par yield curve.
Deutsche Bundesbank: the 10-year German government bond yield. Source: Deutsche Bundesbank.
Ministry of Finance, Japan: the 10-year Japanese government bond yield. Source: Ministry of Finance Japan website, under the Public Data License 1.0.
Bank of England: the 10-year UK government bond yield. Contains public sector information licensed under the Open Government Licence v3.0.
Bank of Canada: the 10-year Canadian government bond yield, which the Bank offers free of charge on its website.
Banco de España: the 10-year Spanish government bond yield, dated on each row. Source: Banco de España website (www.bde.es), where it is free of charge.
Reserve Bank of Australia: the 10-year Australian government bond yield. Source: Reserve Bank of Australia 2026, under CC BY 4.0.
World Bank: economic series, and monthly commodity prices, gold, silver and copper among them, from its Pink Sheet. World Bank, CC BY 4.0.
OECD: economic series and long-term government bond rates.
Eurostat: economic series for EU and EFTA countries, CC BY 4.0.
Bank for International Settlements: policy rates and credit statistics.
US Bureau of Labor Statistics: US consumer price inflation and job openings, and the dates of its inflation and jobs reports.
US Bureau of Economic Analysis: the dates of its GDP and personal income reports.
US Energy Information Administration: Brent, WTI and Henry Hub spot prices. Source: U.S. Energy Information Administration (2026).
US Census Bureau: the months' supply of new houses, from New Residential Sales, and the dates of its retail sales report.
News
Market and company news
The GDELT Project: market news headlines, and company news for many of the largest companies.
Notices
Licence notices
Some US price history and earnings-call transcripts come from DefeatBeta's dataset, published under the ODC-BY licence.