How Is NAV Calculated? Portfolio Valuation’s Role in Fund Performance

How Is NAV Calculated? 

Portfolio Valuation’s Role in Fund Performance

When you’re managing an interval fund, few metrics matter more than Net Asset Value (NAV). It’s the number that guides share pricing, redemption windows, and investor confidence. But NAV isn’t just an accounting figure, it’s a reflection of how accurately and consistently a fund’s portfolio is valued.

What Is NAV?

Net Asset Value is the per-share value of a fund, calculated by subtracting liabilities from total assets, then dividing by the number of shares outstanding. In simple terms, it tells investors what each of their shares is worth.

NAV = (Total Assets – Total Liabilities) / Shares Outstanding

NAV is typically calculated at regular intervals (monthly or quarterly) for closed-end interval funds, especially around redemption periods. But the accuracy of NAV hinges on one crucial input: the value of your underlying portfolio.

The Role of Portfolio Valuation

For funds that invest in private assets such as startups, private credit, real estate, valuation can be complex. Unlike public stocks, these assets aren’t priced daily by a public market. Instead, their value must be estimated using recognized valuation methodologies.

Common approaches include:

  • Market comparables: Using recent valuations of similar companies or deals
  • Discounted cash flow (DCF): Projecting future earnings and discounting them to present value
  • Third-party valuations: Independent assessments conducted quarterly or annually for unbiased validation

These valuations can have a material impact on NAV, especially when major events occur in your portfolio, think funding rounds, exits, or credit impairments.

Why NAV Matters to Fund Managers

NAV is more than a reporting requirement. It directly affects:

  • Share pricing: New investors buy in at NAV. If the number is off, capital raises may be mispriced.
  • Redemptions: During liquidity windows, investors are paid out based on NAV, accuracy protects both the fund and your existing investors.
  • Performance reporting: NAV gives your investors an anchor for understanding value between liquidity events.

That’s why Sweater has the infrastructure to calculate NAV accurately and designed to align with SEC expectations.

How Sweater Supports NAV Accuracy

We build valuation processes fund managers and investors can trust:

  • Structured data flows for portfolio company updates and cap table changes
  • Integration with third-party valuation partners for independent, GAAP-compliant assessments
  • Secure cloud-based systems to manage reporting, calculations, and fund operations end-to-end

All valuation data is encrypted and stored with strict access controls so your NAV calculations remain both accurate and secure.

Why IRR and MOIC Fall Short for Interval Funds

If you’ve worked in private equity or venture capital, you’re probably familiar with IRR (Internal Rate of Return) and MOIC (Multiple on Invested Capital) as standard metrics.

But here’s the thing: IRR and MOIC aren’t designed for interval funds.

Here’s why:

  • Interval funds are evergreen. No fixed end date or capital return event neatly closes the loop for calculating IRR or MOIC.
  • Investors enter and exit at different times. These metrics don't reflect individual investor experience, especially when NAV changes over time.
  • Redemption-based liquidity, not distribution waterfalls. There’s no wind-down phase with realized returns like in a typical private equity fund.

Instead, interval funds rely on NAV as a real-time reflection of performance supported by accurate and consistent portfolio valuations.

NAV enables fair share pricing, compliant redemptions, and investor visibility across the lifecycle of the fund. 

NAV Is Your Foundation

In the interval fund model, NAV is a financial cornerstone that shapes investor trust, redemption timing, and fund growth. By partnering with a fintech platform designed for transparency, fund managers can build a more resilient fund for the long haul.

Want to Launch with Confidence?

Sweater gives you the tools to build, scale, and operate an interval fund—starting with the fundamentals. Get in touch to see how we help fund managers stay accurate, compliant, and investor-ready.

The information contained in this post is provided for informational and educational purposes only and should not be construed as investment, legal, or tax advice. The content does not constitute an offer to sell, or a solicitation of an offer to buy, any securities or investment products.

Category
Written by
The Sweater Team
Published on
October 22, 2025
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Disclosure: Investors should carefully consider the investment objectives, risks, charges, and expenses of the Fund before investing. The prospectus contains this and other information about the Fund and can be obtained by calling 1-888-577-7987 or by visiting the Fund’s website at www.sweaterventures.com/cashmerefund. Please read the prospectus carefully before investing. All investments involve risks, and past performance is no guarantee of future results.