Surging investor interest "reinforced the need for reliable pricing data," says S&P Dow Jones' Peter Roffman, global head of innovation and strategy.The S&P DJI products will be supported by Lukka, a leading crypto asset software and data company, and cover more than 550 top coins.Roffman: "With digital assets such as cryptocurrencies becoming a rapidly emerging asset class, the time is right for independent, reliable and user-friendly benchmarks. We're excited to work with Lukka, who has been at the forefront of digital asset data services, to promote more transparency in this nascent sector."Bitcoin (BTC-USD) today is up 2% to $19.33K. The Grayscale Bitcoin Trust ([[GBTC]] +1.2%).