I bought over 59 shares of this company last two weeks for 15$ in total and about a week ago it spiked up to $68 but i dint sell i kept holding and today uts at $48 and i am still holding PDSB

PDSB (PDS Biotechnology Corporation) is a U.S.-based biotechnology company focused on developing cancer immunotherapy treatments. Its main goal is to use the immune system to fight cancer. PDSB is a clinical-stage company, meaning its treatments are still undergoing development and clinical testing. Its stock trades on the NASDAQ under the ticker PDSB.