Ace the NISM Mutual Fund Distributors ExamDifficulty: BeginnerInfo   5 min read
📌 Chapter 7.2 — Computation of Net Assets of Mutual Fund Scheme and NAV

Consider a client who asks why a debt fund in their portfolio suddenly shows a sharp drop in valuation despite no major market crashes. As an MFD, you explain that the fund was heavily exposed to a single corporate house that faced a credit downgrade, which triggered a price correction. Prudential investment norms are the regulatory guardrails designed exactly to prevent such concentration risks from sinking an entire portfolio.

By limiting how much a single scheme can invest in a specific issuer or sector, SEBI ensures that a mutual fund remains a diversified basket rather than a concentrated bet.

Think of these norms as the safety brakes on a high-speed vehicle. SEBI mandates that a debt scheme cannot invest more than 10% of its NAV in debt instruments issued by a single issuer, a limit that can be extended to 12% with board approval. This prevents the ‘all-eggs-in-one-basket’ failure where the collapse of one entity wipes out the gains of the entire scheme.

For an MFD, understanding these limits is crucial because it allows you to explain the inherent safety mechanisms of regulated mutual funds compared to direct lending or unlisted debentures.

In your day-to-day work, reviewing a scheme’s portfolio disclosure becomes a lesson in risk management. If you notice a fund consistently hitting the upper ceiling of exposure to specific sectors like housing finance or infrastructure, it signals a high-risk, high-conviction strategy. You can then guide your client on whether such a fund aligns with their risk tolerance or if they would be better served by a more diversified, conservative offering.

While direct plans offer lower expense ratios, your role as an MFD involves interpreting these regulatory disclosures to help the client understand what they are actually paying for: professional curation, portfolio monitoring, and protection against over-concentration.

Ultimately, these norms shift the burden of security from the investor to the regulator and the fund manager. By enforcing diversification, SEBI ensures that even if one company falters, the overall NAV remains resilient. When you articulate these rules to a client, you build trust by demonstrating that their investments are guarded by a robust, transparent framework that prioritizes capital preservation over speculative concentration.


Nuance

⚠️ Nuance
Many candidates confuse the 10% single-issuer limit for debt schemes with the sector-specific exposure limits. A common pitfall is assuming that these prudential norms apply uniformly across all schemes, ignoring that equity schemes follow a different set of concentration rules. Always remember that for debt instruments, the exposure is tracked by the ‘issuer’ to prevent credit concentration, whereas equity is tracked by ‘company’ to manage market risk.

Check Your Understanding

Practice Question 1

Under SEBI’s prudential norms for debt-oriented mutual fund schemes, what is the maximum permissible exposure to debt instruments of a single issuer, excluding rated plain vanilla bonds, before requiring board approval?

Practice Question 2

Which of the following best describes the primary intent of SEBI’s prudential investment norms regarding sector exposure for mutual fund schemes?


This is a companion read for Section 7.2 — Computation of Net Assets of Mutual Fund Scheme and NAV from Ace the NISM Mutual Fund Distributors Exam by Akhilesh Gururani, available on Amazon Kindle.

Copyright © 2026 Akhilesh Gururani. All rights reserved.