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Banking

Money Market Fund

Quick definition

Mutual fund holding short-term, highly liquid debt (T-bills, commercial paper, repos) targeting stable $1/share value plus yield.

Money market funds are mutual funds investing in short-duration debt instruments. Typically yield close to the fed funds rate (mid-3 percent range as of 2026). Three types: government MMFs (treasuries + repos, safest), prime MMFs (commercial paper, slightly higher yield), municipal MMFs (tax-exempt). For startup treasury, government MMFs are standard: full liquidity and government-backed. Not FDIC-insured but SIPC-insured up to $500K at most brokerages.

Frequently asked questions

What is Money Market Fund?
Money market funds are mutual funds investing in short-duration debt instruments. Typically yield close to the fed funds rate (mid-3 percent range as of 2026). Three types: government MMFs (treasuries + repos, safest), prime MMFs (commercial paper, slightly higher yield), municipal MMFs (tax-exempt). For startup treasury, government MMFs are standard: full liquidity and government-backed. Not FDIC-insured but SIPC-insured up to $500K at most brokerages.
Why is Money Market Fund important for startups?
Money Market Fund is a banking concept that matters for startup founders because it shows up in fundraising readiness, financial decision-making, and operational discipline at the stage where mistakes are expensive to undo. Founders who understand it are better prepared for diligence, board meetings, and investor conversations.
What category does Money Market Fund belong to?
Money Market Fund is a Banking term in the StartupCFO finance glossary, alongside other banking concepts that founders, CFOs, and accountants use in startup operations and reporting.
Where can I learn more about Money Market Fund?
Beyond this definition, see the related banking terms below, or explore StartupCFO's insights and tools that put Money Market Fund in context. For specific situations, talk to a fractional CFO who can walk through your numbers.

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