The research shows a “gender investment gap”, caused by the disparity in earnings between male and female.
Oxford is expected to have the eighth highest gap of all UK cities by 2030, with the figure predicted to be £10,709.
The research suggests women’s salaries are more than £13,000 lower on average, which impacts the amount they can save from investing.
Shepherds Friendly’s research shows that due to UK men earning a higher average annual salary, £41,850, than women, £28,765, their investment pots will be £10,362 more than women’s by following a regular investment strategy.
The city with the biggest gender investment savings gap is London, with a difference of £14,178.
Brighton & Hove follows with the second-largest investment savings gap at £12,250, while Exeter rounds up at third with a £11,979.
The smallest gender investment gap is in Dundee, where women’s investments are valued at just £1,832 less than men’s by 2030.
Wolverhampton has the second smallest gap of £2,958, and Blackpool is third with a £4,580 difference.
Shepherds Friendly’s chief finance officer Derence Lee said: “How much you can afford to set aside for investing will depend on your financial circumstances, however, it’s interesting to see how the gender pay gap may be causing discrepancies when it comes to what female investors can earn.”