shares of ocugen inc ocgn shed 881 to 145 thursday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 249 to 389575 and dow jones industrial average djia falling 225 to 3320222 the stocks fall snapped a threeday winning streak ocugen inc closed 433 below its 52week high 578 which the company achieved on december 20th