Boston and San Francisco-based ETF issuer VistaShares said on Tuesday it has surpassed $2 billion in assets under management, only a few months after crossing $1 billion on April 14.

The company credited its Supercycle® ETF lineup for the growth, with the VistaShares Artificial Intelligence Supercycle® ETF (AIS) described as approaching $1 billion in assets on its own.

VistaShares said its patent-pending ‘Bill of Materials’ methodology, which tracks where capital is being deployed across sectors such as AI and power, has been central to the expansion.

“Areas like AI and power move quickly and by staying close to the people building the new technologies and businesses, we are able to construct portfolios based on where capital is flowing, instead of where it has been,” said Adam Patti, CEO of VistaShares.

Beyond the Supercycle® range, the firm said its Legends + Income suite has continued to expand. The flagship product in that suite is the VistaShares Target 15™ Berkshire Select Income ETF (OMAH), which targets 15% annual income paid monthly through an options-overlay strategy.

VistaShares reached $1 billion a little more than a year after its first ETF debuted.