Jeff Fusco Introduction 7.5%. That's how much Comcast Corporation (NASDAQ:CMCSA) shares have risen since January 2018. This performance is horrible, as investors in the S&P 500 made 75% during this period, with lower risks. After all, a well-diversified basket of 500 stocks almost always has lower risks than a single stock. VAL © Comcast Corp (CMCSA) Price % Change 7.47% SPDR® S&P 500 ETF Trust (SPY) Price % Change ~ 75.34% 2018 2019 2020 2021 2022 2023 2 Seeking Alpha* im0 2024 168w 5. Poweravy 'Y CHARTS. ...