U.S. stocks were mixed, with the Dow Jones index gaining around 100 points on Friday.
  Shares of Evolv Technologies Holdings, Inc. (NASDAQ:EVLV) rose sharply during Friday's session following strong quarterly results.
  Evolv Technologies reported a quarterly loss of 2 cents per share which beat the analyst consensus estimate of a loss of 4 cents per share. The company reported quarterly sales of $32.54 million which beat the analyst consensus estimate of $30.95 million.
  Evolv Technologies shares jumped 15% to $8.48 on Friday.
  Here are some other big stocks recording gains in today’s session.
  
   - Precigen, Inc. (NASDAQ:PGEN) shares jumped 50% to $2.7800 after the company announced the FDA has approved PAPZIMEOS. HC Wainwright & Co. raised its price target on the stock from 6 to $8.5.
 
   - Xunlei Limited (NASDAQ:XNET) gained 33% to $6.73 on continued strength after the company reported a year-over-year increase in second-quarter financial results yesterday.
 
   - Hesai Group (NASDAQ:HSAI) rose 16.3% to $27.11 after the company reported a year-over-year increase in quarterly financial results. Additionally, the company announced a new lidar design win from Toyota.
 
   - Sigma Lithium Corporation (NASDAQ:SGML) jumped 15.7% to $6.54 after reporting second-quarter results.
 
   - Nu Holdings Ltd. (NYSE:NU) gained 14.6% to $13.77 following second-quarter results.
 
   - Kura Oncology, Inc. (NASDAQ:KURA) rose 13.7% to $7.51.
 
   - UnitedHealth Group Incorporated (NYSE:UNH) shares surged 10.3% to $299.38 following disclosure that legendary investors Michael Burry and Warren Buffett have taken significant positions in the healthcare giant.
 
   - Opendoor Technologies Inc. (NASDAQ:OPEN) gained 9.6% to $3.3313. Opendoor reported that CEO Carrie Wheeler will step down and named Shrisha Radhakrishna as president and interim leader.
 
   - Applied Optoelectronics, Inc. (NASDAQ:AAOI) jumped 8.8% to $22.86.
 
   - Qudian Inc. (NYSE:QD) gained 8.5% to $4.60.
 
   - I-Mab (NASDAQ:IMAB) rose 8.5% to $5.60.
 
   - Oscar Health, Inc. (NYSE:OSCR) gained 8.5% to $15.93.
 
   - NIO Inc. (NYSE:NIO) rose 7.2% to $4.7699.
 
  
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