Barclays Wealth has reported that its clients increased their investments as they capitalised on falls in the markets last week.
The organisation's stockbrokers have said that they saw 61 per cent buys, compared to 39 per cent sells at the same time as the sterling fell to an eight and a half month low against the dollar .
Fears for the global economy have been raised recently because of the debt problems faced by Greece and other nations and, according to Barbara-Ann King, head of investments at Barclays Stockbrokers, they are seeing a familiar pattern.
She said: "We have consistently seen our clients capitalising on market movements, and over the past year there has been clear correlation between market drops and the buy/sell ratio increasing.
Barclays Wealth also reiterated the point that investors should diversify their portfolios to protect themselves in a volatile market.
It is expected that the European Union will bail Greece out of debt, although investors are still worried that the problems could spread to other countries around the Euro zone such as Portugal and Ireland .




