In making these profits, London maybe catches up

Wiktionary Word definitions in Wiktionary
n. (capital gain English)

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ In concept it was an equivalent to the capital gains tax which would have been levied had the building been sold. ▪ Income is not a big deal, with the average stock yielding only 2 percent, but capital gains can be trouble. ▪ ...

Wikipedia Word definitions in Wikipedia
Capital Gains was a radio programme that originally aired from 1994 to 1997. There were nine half-hour episodes and it was broadcast on BBC Radio 4 . It starred Peter Jones and Justine Midda .