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Asset Management

Datastream at 50: still the best tool for macro research

Vicki Derasse

03 Oct 2017

50 years of Datastream and world events

Thomson Reuters Datastream is 50. Trusted and valued by generations of finance professionals, this powerful data and charting tool continues to set the highest standards for macro research.

Back in the 1960s, when the only history of London’s FT 30 market index was in year-to-date form, a small team set about creating a financial database that would become the Datastream we know today.

Find out more about Thomson Reuters Datastream, a powerful financial time series database

Fifty years since its launch in 1967, Datastream is now the longest serving database for financial analysts, and for many remains the product of choice for top-down macro analysis, sector research or asset allocation strategy.

It now provides a vast array of historical time series content across all major asset classes and over 10 million economic time series for 162 markets with comparable data so users can build insightful charts and analysis.

To mark its 50-year anniversary, we look back at the development of Datastream and hear from the many generations of financial professionals for whom the service played an integral part in their working lives. According to one former Datastream user it was, quite simply, “one of the most brilliant analytical tools ever invented”.

The IBM Mainframe — a cloud before the cloud
The IBM Mainframe — a cloud before the cloud

Early financial database

The creation of Datastream is due mainly to one man’s vision, and a group of people who believed in him. Graham Blease, now 88, worked as Investment Manager for the Airways Joint Pension Scheme.

As an “early adopter” of technology, Graham was troubled by the lack of research and basic data to make investment decisions at a time when most of the financial business in London was essentially relationship and bowler hat-based.

Through his job, Graham had visited the United States a number of times and noticed how much more advanced the financial markets were there.

Using part of the Airways Ticket booking system computer, Graham and team started a financial information database known as the JPS Index.

This included indices of price, dividend and earnings that were produced weekly in hard copy form for internal use, but were later made available to a small number of stockbrokers.

To fully develop the potential of these computer applications, Graham realized the expenditure required would more likely come from the brokerage side of the market rather than institutional investors.

He subsequently joined Hoare & Co in 1964 where the partners enthusiastically embraced the idea. The very first service produced from this system was the Hoare & Co Equity Investment Service, which was printed and distributed around the City of London by a team of messengers.

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The birth of Datastream

A new concept emerged in New York where U.S. brokerages were storing and then making data available. The only trouble was that you needed to be a computer expert to extract anything from them.

Graham’s vision was to replicate the idea in London but to provide a friendly client interface. This resulted in a terminal at the client site, interrogating the mainframe via some easy access programs which would display textual information about stocks and indices.

And so Hoare & Co developed the first online interactive data retrieval system in Europe with the name of dataSTREAM, which was branded on a global basis.

One of the original dataSTREAM terminals
One of the original dataSTREAM terminals

Start of mnemonics

Simplifying the interface was one thing but expecting clients to look up code numbers (SEDOLs) was not something Graham could accept.

So he set up a team to generate easy to remember “mnemonics”, which are of course now used across the financial markets.

Subsequently, many other vendors adopted this procedure and more recently Thomson Reuters has developed the “Permanent Identifier” OpenPermID, a machine readable identifier that provides a unique reference for data items across a wide variety of entity types.

A difficult period

By 1973, it was increasingly obvious that Datastream would not grow while still being owned by a single broker. Ideas for selling the company were then explored ultimately leading to the departure of its inspirational founder, Graham Blease, in difficult circumstances.

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Datastream key dates

In subsequent years there followed technological advances, product releases, mergers and acquisitions. Here’s how Datastream evolved into what we know today:

1976: A consortium of companies led by BOC (British Oxygen Corporation) buys Datastream for £2million from Hoare Govett.

1981-82: Launch of the Graphics service: the 401 programs. At the time, no other financial service offered this possibility and the take-up was tremendous.

These programs also allowed users to design and apply expressions to any (combination) of the historical content sets. It also had its own macro language enabling automation of tasks.

1983: Datastream is listed on the London Stock exchange (at a P/E ratio of 22.8 valuing the company at £24 million).

Datastream — the start of a long lasting macro economics product
Datastream — the start of a long lasting macro economics product

1984: Dun & Bradstreet buys Datastream for US$101 million. By now, Datastream has clients in the UK, Netherlands (since 1975), Switzerland (since 1979), (West) Germany (since 1977) and Ireland.

1989-1992: Datastream launches a Windows interface (DSWindows) and capabilities to access the data directly in Excel or Lotus 123.

This was a first for accessing historical financial data in a spreadsheet and today Datastream is still helping users save hours every week by easily updating the charts and tables in their spreadsheets and reports.

Datastream firsts

1992: Primark acquires Datastream for $191 million.

1999-2000: Datastream launches its next generation interface (known as Advance) with links to Microsoft Office, and later the first web interface (Navigator) for exploring the ever increasing database.

2001: Thomson Financial acquires most of Primark, which also includes I/B/E/S Estimates and Worldscope among other databases, for $842 million cash plus debt.

2007: Thomson merges with Reuters. The next generation Datastream Charting interface replaces Advance and 401 graphics programs.

2009-2011: Datastream and EcoWin merge content.

2013: Datastream is now integrated in the Thomson Reuters Eikon desktop and Microsoft Office capabilities with a third generation Excel Add-In (known as Datastream for Office). Datastream content is also available as feeds & API solutions.

2017: Datastream is not only the longest-serving database for financial analysts but is still the market leading product for top-down macro analysis, sector research or asset allocation strategy.

Datastream data coverage growth

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Datastream across the generations

Most of the baby boomer generation who started using Datastream at the outset have now retired.

One of the best tributes comes from Peter Lyon, whose “love affair with Datastream” dates back to 1969 when as a 28-year-old he worked in the Economic Intelligence Department of the Prudential Assurance Company in London.

He went on to run various research departments, where he always insisted that Datastream was available.

He said: “The great attraction was that quite complex arguments could be expressed elegantly and clearly with the use of charts — an enormous bonus when faced, as sometimes was the case, with relatively innumerate salesmen or skeptical clients.”

Peter retired a few years ago but still subscribes on a personal basis to Datastream for the management of his own money, and for that of a charity and another fund both associated with his old school.

He said: “I am so familiar with the mnemonics that I can throw up the charts that I need almost instantaneously.

“Datastream remains indispensable. For my part I think it was one of the most brilliant analytical tools ever invented and I hope, perhaps, to be using it for many years to come.”

Further tributes to Datastream

“I have been relying on Datastream in its various versions since the early nineties — ranging from literally thumbing through its early catalogues of data — to today’s web-based, menu-driven form, and am glad to say it remains the benchmark macro database that all others have to follow.”
Neil Williams, Chief Economist, Hermes Asset Management

“I started using Datastream in 1990. I had just finished my drafting period in the Army and wasn’t sure what I would do then with my degree in accounting & analytics. Datastream and its support teams helped shape my career, as I went on to be the data analysis expert for a number of research teams over the years in Paris: JP Morgan, Natixis and now Bryan, Garnier & Co. I am still actively using Datastream, which is my main research database. I wish to thank all the people who made Datastream one of the most famous financial databases today.”
Eric Monnier, Bryan, Garnier & Co

“The first impression is always the best. I came across Datastream very early in my career. As an economist, my first charts, and my first models and automated reports (called macros at the time) were done using DSWindows. Then, I moved on. I went to work elsewhere and was curious to see what other databases offered and whether they did it better. But I came back and I won’t leave now. Joyeux Anniversaire, Datastream.”
Rachid Medjaoui, Deputy CIO at BPE gestion privée

  • Did Datastream help you develop your approach to macro research or come up with new investment ideas? How long have you been using Datastream? How much time has it saved you over the years? We’d love to hear your experiences — email us at Datastream50Y@thomsonreuters.com

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