VectorIQ, which was formed to invest in smart transportation industry, went public in May 2018 by offering 20 million units at $10 each. The units were listed on the Nasdaq under the ticker symbol "VTIQU." With the completion of business combination with VectorIQ June 2, Nikola was listed on the Nasdaq under the ticker symbol "NKLA" June 4. In its debut session Thursday, Nikola stock opened at $37.55 and rose to a high of $38.88 before pulling back and settling at $33.97. The stock added an incremental 6.6% Friday before ending at $35.97.