The world financial crisis has revealed numerous risks for investors and other market participants related to speculative funds. As a result, comprehensive supervision principles have been established to prevent these risks. The article presents the activities undertaken by the European Union and by other states, aimed at regulating the principles of hedge funds functioning. The new regulations provide for registration and reporting duties that are to ensure higher market transparency and to diminish the differences between hedge funds and traditional investment funds. In order to prove the said thesis, the author presents the specifics of the speculative funds functioning, the current trends on the funds market, and later she makes an assessment of the regulations adopted in the field.