In this episode of Tech Teardown, Erin Kennedy discusses the latest developments in the tech sector with Evan Niu, CFA, our tech and telecom bureau chief. 

  • Like other social media companies, Twitter's international footprint is small. That just means it has room to grow.
  • Twitter's operating expenses are keeping it from notching profitability -- a common problem for young companies.
  • Twitter's public debut showcases the mechanics of IPOs and how they affect ordinary investors.
  • NVIDIA's third-quarter earnings give investors something to cheer about.