Goldman's blockchain screen stocks are trouncing the S&P: At the Open

The rally in bitcoin (BTC-USD) has propelled related stocks to returns nearly four times greater than the broader market this year.Goldman Sachs ran a screen that returned 19 companies with exposure to the blockchain or cryptocurrency with a market cap above $1B.Those companies have outperformed the S&P 500 (SP500) (SPY) by 34 percentage points, up 46% vs. 12%."On average, these stocks have dramatically outperformed the S&P 500 during the last several months alongside the surge in the price of Bitcoin," strategists including Ben Snider and David Kostin wrote in a note. "An equal-weighted portfolio of the stocks has demonstrated roughly 60% correlations with Bitcoin and the Bloomberg Galaxy Crypto Index during the last several months, compared with 20% correlations for the S&P 500."The stocks identified are: Marathon Digital Holdings (MARA), Riot Blockchain (RIOT), MicroStrategy (MSTR), Silvergate Capital (SI), Square (SQ), PayPal (PYPL), Overstock.com (OSTK), Nvidia (NVDA), InvestView (INVU), Ideanomics (IDEX), Tesla (TSLA),