NISM Series VIII common mistakes
NISM Series VIII · Understand the traps and how to avoid them.
Treating SEBI's regulatory framework for equity derivatives as background reading and memorising only product mechanics, so questions on eligibility criteria, permitted instruments, and the regulator's powers get answered from general market intuition rather than the actual rule.
Candidates assume the exam is numerically heavy and skip the regulatory chapter, but NISM Series VIII tests the SEBI (Stock Exchanges and Clearing Corporations) framework, contract specifications, and investor-protection provisions as a distinct, frequently examined block.
What to do instead
Build a one-page rule sheet covering who may trade equity derivatives, permitted underlying instruments, contract-size and lot rules, margin and settlement obligations, and grievance-redressal channels; review it before every mock so regulatory questions are answered from the rule, not from habit.
Confusing the roles of trading member, clearing member, and professional clearing member, and answering 'who guarantees settlement' or 'who collects margins' with the wrong intermediary.
The three roles overlap in day-to-day language, and candidates learn the organisational chart superficially without mapping each role to a specific obligation such as margin collection, settlement guarantee, or client-fund segregation.
What to do instead
Draw a three-column table with each intermediary as a row and obligations (margin collection, settlement guarantee, client segregation, default handling) as columns; fill it from the source material and test yourself by covering one column at a time.
Computing option payoffs correctly but reporting the wrong profit, because premium paid or received is omitted from the final answer.
Under exam time pressure, candidates stop at intrinsic value and forget that the buyer's net position is payoff minus premium and the seller's is premium minus payoff.
What to do instead
Adopt a fixed four-line template for every option question: premium, strike, spot at expiry, net profit for buyer and for seller. Write all four lines before selecting an answer, even when only one is asked.
Mixing up in-the-money, at-the-money, and out-of-the-money definitions between calls and puts when the question gives a spot price and strike.
The call and put conventions are mirror images, and candidates who memorise a single sentence like 'ITM means spot above strike' apply it to puts and get the classification backwards.
What to do instead
Memorise the rule as buyer's perspective: a call is ITM when spot exceeds strike, a put is ITM when strike exceeds spot. Practise ten rapid classification drills with both option types mixed before moving to payoff calculations.
Treating futures and options as interchangeable when asked about obligation, margin, or maximum loss, and answering that both parties face unlimited loss or that both require the same margin.
Both are derivatives on the same underlying, so candidates collapse the distinction and miss that the futures buyer and seller both carry obligation and margin, while the option buyer pays premium and has capped loss with no margin obligation.
What to do instead
Keep a comparison grid with rows for obligation, upfront payment, margin requirement, maximum loss for buyer, and maximum loss for seller, and fill it for futures, call options, and put options; recite it before attempting mixed questions.
Applying a cost-of-carry or futures-pricing formula without checking whether the question already supplies the fair value, or whether dividends and storage costs are excluded, leading to double counting or wrong signs.
Candidates pattern-match on numbers in the stem and plug them into a remembered formula without reading what each figure represents, and they treat the dividend adjustment as always additive.
What to do instead
Before calculating, label each number in the stem with its role (spot, rate, time, income, cost) and note whether the question asks for fair value or for mispricing. Remember that carry income such as dividends reduces the futures price while carrying costs raise it.
Confusing initial margin, maintenance margin, and variation margin, and answering mark-to-market questions as if variation margin were a fixed deposit rather than a daily cash flow.
The terms are introduced together and candidates memorise definitions without linking them to the daily settlement cycle, so they cannot trace what happens when the margin balance falls below the maintenance level.
What to do instead
Trace one worked example end to end: open a position, post initial margin, mark to market daily, breach maintenance, receive a margin call, restore to initial margin. Write the cash flow at each step and redo the example with a loss-making day.
Using the wrong convention for time, rate, or compounding in pricing and margin questions, such as entering a three-month period as 3 rather than 0.25, or a percentage as 8 rather than 0.08.
Exam stems state periods in months or days and rates in percent, and candidates enter figures directly into formulas without unit conversion, producing answers that look plausible among the options.
What to do instead
Make unit conversion an explicit written step: convert every period to years and every rate to a decimal before substitution, and check whether the question specifies simple or continuous compounding. Sanity-check the result against the spot price for reasonableness.
Answering strategy questions, such as covered calls, protective puts, or spreads, by describing the legs instead of stating the market view, the net premium, and the risk profile the strategy creates.
Candidates know the construction of common strategies but not the purpose, so they cannot distinguish a covered call from a protective put when the stem describes an investor who owns shares and expects a flat market.
What to do instead
For each standard strategy, write three lines: market view it expresses, net premium paid or received, and maximum profit and loss. Rehearse identifying the strategy from the investor's stated view rather than from the leg names.
Skipping the trading, clearing, and risk-management mechanics of the equity derivatives segment, including position limits, margining systems, and settlement cycles, because they seem operational rather than conceptual.
These topics read like procedural documentation, so candidates deprioritise them, yet questions on position limits, margin collection timelines, and settlement obligations are straightforward marks for those who have read the detail.
What to do instead
Summarise the operational sequence as a timeline from order entry to trade confirmation, clearing, margin collection, and final settlement, with the responsible party and deadline at each stage. Test yourself by recalling the timeline from memory weekly.