'Tell your friends' about Israel business opportunities Bibi urges as he opens London Stock Exchange

In his subsequent speech he also discussed the success of Israeli technology, name-checking companies including Waze and Mobileye.

"Israel received in the last year 20 per cent of the global investment in cyber security," he said.

"Twenty per cent. Since we're a tenth of one percent of the world's population, that's punching 200 times above our weight.”

At the beginning of his speech he had joked that people who were aware of Israel's success should keep it to themselves to benefit the most from the investment opportunities, but made it clear at the end of his talk that he hoped they would share that news with other investors.