BlackRock, the world’s largest investment company with over $5 trillion in assets under management, has become the latest prominent figure in the financial world to take a “not now but maybe later” approach to the fast-expanding cryptocurrency industry.

In an interview with Bloomberg TV on Monday, Isabelle Mateos Y Lago, Chief Multi-Asset Strategist at BlackRock, said that although the firm is not classifying cryptocurrency as “an investable asset” yet, it is keeping it under “close review” as it’s both new and interesting.

“The fact that interest has persisted despite these repeated hacks, despite regulators waking up and trying to catch up with this new development and gradually weeding out all the illegal uses suggests there really is somETHing to it. Clearly, it is evolving very fast.”

She also reiterated that any G20 regulations would not change anything overnight, but it is a step towards maturity for the asset class.