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TRADING UPDATE - April 2021 RELX , the global provider of information - based analytics and decision tools , has issued the following update on trading ahead of its Annual General Meeting , reaffirming the outlook for the full year . & RELX Highlights Our three largest business areas , STM , Risk and Legal , which together accounted for 95 % of revenue in 2020 , have started the year well . Exhibitions , which accounted for 5 % of revenue in 2020 , has continued to be impacted significantly by the Covid - 19 pandemic . Scientific , Technical & Medical ( 38 % of 2020 revenue ) 7.00am BST 22 April 2021 Full year outlook We continue to expect each of our three largest business areas , STM , Risk and Legal , to deliver another year of underlying revenue and adjusted operating profit growth in 2021 , similar to pre - Covid - 19 trends . The timing and pace of recovery in Exhibitions remains uncertain . ● ● Trends in our customer environment continue to vary somewhat by segment . In Primary Research we have continued to see strong growth in article submissions . Open access revenues are continuing to grow very strongly across geographies . Databases & tools and e - reference have started the year well . Full year outlook : We expect another year of modest underlying revenue growth , with underlying adjusted operating profit growth slightly exceeding underlying revenue growth . Risk ( 34 % of 2020 revenue ) Electronic revenue , which represents around 85 % of the divisional total , has continued to grow well . Print revenues have stabilised following the Covid - 19 related disruption in the first half of 2020 . Transactional revenue , which represents around 60 % of the divisional total , has seen good growth rates at the start of the year stepping up further from mid - March as we begin to lap last year's Covid - 19 related disruption . Subscription revenue , which represents around 40 % of the divisional total , has remained resilient overall , albeit with some impact from delays in customer product implementations last year . In Business Services , demand for fraud prevention and identity products continues to grow strongly , with the digital identity segment growing particularly well . Insurance market activity is now showing strong growth against the disrupted comparative period of the prior year . End customer markets for Data Services show varying dynamics , while Government continues to grow strongly . Full year outlook : We expect a year of strong underlying revenue growth , with the fundamentals of the majority of our customer markets in line with , or slightly ahead of , pre - Covid - 19 trends . We expect underlying adjusted operating profit growth to broadly match underlying revenue growth . Legal ( 23 % of 2020 revenue ) Electronic revenue , which represents around 85 % of the divisional total , has continued to see good growth . The rate of print revenue decline has moderated somewhat following steeper than historical declines in 2020 due to Covid - 19 related disruption . Trends in our major customer markets are stable , with good demand for our market leading legal analytics and continued roll - out of integrated functionality across our solutions . Full year outlook : We expect another year of modest underlying revenue growth , with underlying adjusted operating profit growth exceeding underlying revenue growth .