The same company behind the S&P500 and Dow Jones stock market gauges launched the S&P Bitcoin Index, S&P Ethereum Index and S&P Crypto Mega Cap Index, as a way of bringing the digital currencies to Wall Street trading floors.
The indexes will measure the performance of the digital assets tied to them.
More crypto-indices will be launched later in the year.
Bitcoin, the most popular cryptocurrency, has seen a wild rally in prices after backing from high-profile companies including Tesla.
Falling below the $54,000 price tag on Tuesday, bitcoin is off recent highs, but still up nearly 300 percent over the past six months.
Ethereum, meanwhile, touched a record high above $3,500 on Tuesday after rising above $3,000 for the first time over the weekend.