Josyana Joshua

Stay informed with Josyana Joshua’s coverage and analysis for Fortune.

  • SAN FRANCISCO, CALIFORNIA – JUNE 02: Open AI CEO Sam Altman speaks during Snowflake Summit 2025 at Moscone Center on June 02, 2025 in San Francisco, California. Snowflake Summit 2025 runs through June 5th. (Photo by Justin Sullivan/Getty Images)AI

    Credit fuels the AI boom — and fears of a bubble

    By Josyana Joshua, Olivia Fishlow, and others
  • A Wall Street sign near the New York Stock Exchange (NYSE) in New York, US, on Thursday, May 22, 2025. A surge in long-term bond yields is once again threatening to upend a crowded hedge-fund bet that Treasuries will perform better than interest-rate swaps. Photographer: Michael Nagle/Bloomberg via Getty ImagesFinance

    Junkiest junk is offering a warning sign for debt

    By Josyana Joshua, Eliza Ronalds-Hannon, and others
  • Worried people in suitsFinance

    Companies have issued $1 trillion of debt this year and are racing to add more before November

    By Josyana Joshua and Bloomberg