Portfolio Management Pathway · Index-Based Equity Strategies

Index-Based Vehicles: ETFs, Futures, Swaps and Mutual Funds

Updated 9 October 2026 · Fact-checked

Index-based vehicles are the instruments you use to get index exposure: index mutual funds, ETFs, futures, total return swaps and separately managed accounts. To answer a question, match the client's horizon, size, tax status, control needs and cost sensitivity to each vehicle's cost, tracking, counterparty, liquidity and tax features.

Understand Index-Based Vehicles: ETFs, Futures, Swaps, Mutual Funds

You can hold an equity index in several ways. Each way gives similar market exposure but differs in cost, tracking, tax treatment, liquidity, control and risk. The exam tests whether you can pick the best vehicle for a stated client and justify it briefly.

Index mutual funds are pooled funds. Investors buy and redeem at net asset value (NAV) with the fund itself, usually once a day. Redemptions can force the fund to sell securities, and the realized gains may be passed to all remaining holders. They suit small, long-term, buy-and-hold investors.

ETFs trade on an exchange all day at market prices, which can differ slightly from NAV. Authorized participants (APs) keep the price near NAV through creation and redemption. To create shares, an AP delivers the basket of index securities (and sometimes cash) to the ETF sponsor and receives ETF shares. To redeem, it returns ETF shares and receives the basket. This is usually in kind, which helps limit taxable gains inside the fund. If the ETF trades at a premium, APs create shares and sell them. If at a discount, APs buy shares and redeem them. Investors pay a bid-ask spread and brokerage costs, but they get intraday trading.

Futures and total return swaps are derivatives. An equity index future is exchange-traded, standardized, margined and marked to market daily, and it must be rolled at expiry. Its price reflects the cost of carry: financing cost less expected dividends. A total return swap is an OTC contract: one party receives the index total return and pays a floating rate plus a spread. It can be customized in size and maturity and can reach hard-to-access markets, but it carries counterparty risk and may be less liquid. Both need only a small cash outlay, so they are efficient for leverage, cash equitization, tactical shifts and transitions. They are not for investors who cannot manage margin, collateral and rolling.

Separately managed accounts (SMAs) hold the securities directly in the client's own name. They allow customization, such as excluding stocks, tax-loss harvesting and direct control of voting. They usually need more assets and cost more to run than a pooled fund. Always tie your choice to the client's objectives and constraints.

Key rules to remember

ETF premium or discount: Premium/discount = (Market price − NAV) ÷ NAV; Positive means premium: APs create shares. Negative means discount: APs redeem shares.
Futures fair value: F = S × (1 + r)^T − FV of dividends; FV of dividends means the dividends expected before expiry, each compounded forward to the futures expiry date (time T). Equivalent view: F ≈ S × (1 + (r − d) × T) for small T, where d is the dividend yield. The exam usually gives the inputs. Carry cost is financing less dividends.
Number of futures contracts: N = Exposure to add ÷ (Futures price × Multiplier); Round to a whole number of contracts. Use beta adjustment if the exposure is not the index itself.
Total return swap payoff to the receiver: Net payment to receiver = Notional × (Index return − (Floating rate + Spread) × period fraction); The receiver gets the index return, whether positive or negative, and pays floating plus spread. The receiver gains if the index return exceeds the financing leg. If the result is positive, the receiver receives that amount. If the result is negative, the receiver pays that amount. When the index return is negative, the result is negative, so the receiver pays the index decline plus the floating-plus-spread amount.
Tracking difference: Tracking difference = Fund return − Index return; Fees, trading costs and cash drag make it usually negative; securities lending can offset it.

How to solve Index-Based Vehicles: ETFs, Futures, Swaps, Mutual Funds questions

Use the same sequence for any question asking you to choose or compare index vehicles.

1Read the client facts: size, horizon, tax status, need for customization, liquidity needs, and whether leverage or short-term exposure is wanted.
2List the relevant features of each vehicle: cost, tracking, tax efficiency, trading flexibility, counterparty risk and operational burden.
3Check constraints first. A small taxable buy-and-hold investor rules out OTC swaps; a need for customization points to an SMA.
4Match the best vehicle to the objective, and name one runner-up if the command word is compare or discuss.
5Do any calculation (contracts, premium, swap payment) and show each step with the correct sign.
6State the recommendation in one sentence with the two or three reasons that earn the points, and name the main risk of your choice.

Quickest way: Client-to-vehicle shortcut

When to use it: Use this when you must pick a vehicle fast in a multiple-choice item or a short essay part.

Small, long-term, simple: index mutual fund.
Intraday trading, low cost, in-kind tax efficiency: ETF.
Short-term, leverage-like, low cash outlay, liquid: futures.
Custom exposure, access to hard markets, long tenor, accepts counterparty risk: total return swap.
Customization, tax-loss harvesting, own securities, enough assets: SMA.

Common mistakes in Index-Based Vehicles: ETFs, Futures, Swaps, Mutual Funds

Saying ETF shares are created and redeemed by ordinary investors with the fund.
Mutual fund redemption works directly with investors, so the two get mixed up.
Fix: Only authorized participants create and redeem ETF shares, usually in large blocks in kind. Other investors trade on the exchange.
Reversing the arbitrage direction when an ETF trades away from NAV.
Students memorize the premium rule without the logic.
Fix: Premium: sell the expensive ETF, buy the basket, deliver it and create shares. Discount: buy the cheap ETF, redeem it for the basket.
Treating futures and swaps as having no cost because little cash is paid.
The low initial outlay hides the financing cost.
Fix: The cost is embedded in the futures price (carry) or the swap's floating rate plus spread. Also mention rolling and margin or collateral.
Ignoring counterparty risk for total return swaps.
Focus stays on return and flexibility.
Fix: Swaps are OTC, so the other party may default. Mention collateral, netting and counterparty limits.
Recommending an SMA or swap for a small investor wanting low cost and simplicity.
Students pick the most flexible vehicle instead of the best fit.
Fix: Tie the choice to size and constraints. A small investor usually fits a pooled fund or ETF.

Worked examples

Example 1

An index ETF has NAV of 50.00 per share and trades at 50.40. (a) Calculate the premium. (b) State what an authorized participant would do and why this pushes the price toward NAV.

Show the solution

Premium = (50.40 − 50.00) ÷ 50.00 = 0.40 ÷ 50.00 = 0.008, or 0.8%.
The ETF is priced above its underlying basket, so the AP buys the underlying basket of index securities at its market value, which equals NAV and is lower than the ETF's market price.
The AP delivers the basket to the sponsor and receives new ETF shares, then sells them at 50.40, keeping the difference net of costs.
The added supply of ETF shares pushes the ETF price down toward NAV, while the buying of underlying securities nudges their prices up.

Answer: The premium is 0.8%. The AP creates shares (buys the basket, delivers it, sells new ETF shares), and the added supply moves the ETF price back toward NAV.

Example 2

A portfolio manager holds ₹10,00,00,000 in cash for 2 months pending a manager transition and wants to equitize it using index futures. The futures price is 2,000 and the multiplier is ₹50 per index point. Calculate the number of contracts to buy, and name one reason the manager might prefer futures to buying an ETF here.

Show the solution

Value of one contract = 2,000 × ₹50 = ₹1,00,000.
Number of contracts = ₹10,00,00,000 ÷ ₹1,00,000 = 1,000.
Buy 1,000 contracts.
Reason: futures need only margin, so most cash stays invested short-term and the exposure can be removed cheaply and quickly when the transition ends.

Answer: Buy 1,000 index futures contracts. Futures give low-cost, quick exposure that is easy to unwind, with only margin needed up front.

Exam tips

Command words matter: with justify, give the vehicle plus two client-linked reasons; with compare, cover both vehicles on the same feature.
Always link the vehicle to the client's size, tax status and horizon, not just to general features.
Show contract or premium calculations step by step, and keep the sign right on swap payments.
Name the main drawback of your pick (counterparty risk, rolling, spread, minimum size) to complete the answer.

Index-Based Vehicles: ETFs, Futures, Swaps, Mutual Funds in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

NISM CertificationsIndex Applications: Index Funds, ETFs and Derivatives

Index-Based Vehicles: ETFs, Futures, Swaps, Mutual Funds: frequently asked questions

What is the main difference between an ETF and an index mutual fund?

An ETF trades on an exchange all day at market prices, while an index mutual fund transacts at NAV with the fund, usually once a day. ETFs add bid-ask spreads and possible premium or discount to NAV. ETFs are often more tax-efficient because of in-kind creation and redemption.

How do ETFs create and redeem shares?

Authorized participants deliver a basket of index securities to the sponsor and receive ETF shares in return (creation). They can also return ETF shares and receive the basket (redemption). Arbitrage by APs keeps the market price close to NAV.

Equity index futures vs total return swap: which is better?

Futures are standardized, exchange-traded, liquid and have little counterparty risk, but they must be rolled and margined. A total return swap is customizable and can have a longer tenor or reach restricted markets, but it carries counterparty risk. Choose by client needs.

When is a separately managed account the right index vehicle?

Use an SMA when the client needs customization, such as stock exclusions or tax-loss harvesting, or wants direct ownership of securities. The investor must have enough assets to justify the higher cost and operational effort.