Answers / Corporate Treasury

What is the difference between a CNAV and a VNAV money market fund, and why does it matter for corporate cash?

A core Corporate Treasury interview question — asked in analyst and associate interviews across IB, PE, and the Big 4.

THE SHORT ANSWER

Money market funds are a common home for corporate surplus cash. A constant net asset value (CNAV/stable-NAV) fund aims to keep a fixed price per share (e.g., 1.00), redeemable at par, which corporates like for its cash-equivalent simplicity and accounting; a variable net asset value (VNAV) fund prices at a floating NAV that moves slightly with the portfolio's market value. Post-2008 and post-2014/2016 reforms (US and EU MMF regulation) restricted which funds can use stable NAV — broadly limiting it to government/public-debt funds — and introduced liquidity-fee and redemption-gate mechanisms that can apply in stress, plus categories like LVNAV in the EU. It matters because the fund type affects whether the holding behaves like cash, its accounting/classification, and crucially the redemption risk: in a stress event gates/fees can temporarily impair same-day access, so a treasurer must understand the fund structure, not assume all MMFs are instantly liquid par-value cash.

WHAT INTERVIEWERS LISTEN FOR

  • CNAV: stable par price; VNAV: floating market-value NAV
  • Reform limited stable NAV (mainly govt funds); added fees/gates, LVNAV
  • Affects cash-equivalent accounting/classification
  • Stress gates/fees can impair same-day liquidity

COMMON MISTAKES

  • Assuming all MMFs are par-value instant cash
  • Unaware of fees/gates in stress
  • Not knowing post-reform fund categories

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