Sphere Entertainment (NYSE:SPHR) stock investors are excited on Wednesday after billionaire Steve Cohen took a large stake in the live entertainment event company's shares. Sphere Entertainment is best known for The Sphere. This is the large dome in Los Angeles that houses an 18,600-seat auditorium while also featuring LED displays on the outside. How This Affects SPHR Stock Even so, the stock is only up slightly as of this writing. This comes with 148,000 shares traded, as compared to a daily average of ab ...