The financial technology company, which is being taken over by US exchange operator CME Group, reported trading operating profit before one-off items from continuing operations for the year ended March 31 of £160mln, up from £147mln last year.
Revenue from continuing operations rose to £591mln from £541mln the previous year.
“In February, financial markets received a long awaited and much welcomed jolt of activity as volatility returned,” said chief executive Michael Spencer.
“Whilst it was short lived, the underlying level of market volatility is higher today than it was a year ago due to a sustained shift out of emerging market currencies into the US dollar and we have benefited from this.”
Last week NEX shareholders voted in favour of a proposed US$5.5bn takeover by CME. Spencer said the merger would create “exciting revenue, technology and synergy opportunities”.
READ: Trans-Atlantic trading powerhouse: NEX Group agrees to takeover bid from CME worth around £3.9bn
NEX, which provides electronic trading platforms for banks, asset managers and businesses, said it has identified an extra £10mln of cost savings, bringing total annualised savings to £50mln.
The company cut its full year dividend to 11.15p from 38.5p a year ago. The previous year's dividend included nine months of the global broking business that was sold to Tullett Prebon at the end of 2016.
In early morning trading, NEX shares fell 0.4% to 1,001p.