 Shares of SeaWorld Entertainment Inc. SEAS, -1.51 were indicated up about 4 in premarket trading Thursday, after the theme park operator swung to a profit that was well above expectations as revenue more than doubled and guest spending per capita rose above pre-pandemic levels. The company swung to net income of 71.5 million, or 92 cents a share, from a loss of 45.5 million, or 58 cents a share, in the year-ago period. 