Former YouGov chairman sells upArbuthnot chairman increases stakeNational World COO sells up to cover tax costsStephan Shakespeare, the former chief executive of YouGov (YOU:AIM), the international online research and data analytics group has sold 350,000 shares at £11.80 for a total value of £4.13 million on 5 February.The sale was made by his wife Rosamund Shakespeare for the purposes of ?pers

In light of the implications of the unfolding tragedy in Ukraine, the global growth outlook has dimmed, which means now more than ever, portfolios should be as diversified by asset class as possible to in order to maximise returns relative to risk.Higher risk assets they may be, yet 'micro caps', the London stock market's smallest quoted companies should form at least a portion of a well-diversifi