Strike price interval
The gap between adjacent available strikes — Rs 0.25 for exchange traded interest rate options, with a minimum of eight in-the-money, eight out-of-the-money and one near-the-money strike on every contract.
This one is not written up yet
The definition above is the short version. A full explanation — how it works, a worked example and the exam traps — is still being written. In the meantime the chapter below covers it in context.
Written up from the same chapter
- AssignmentThe allocation of exercised options to one or more option sellers — the moment the writer's obligation becomes a real cash outflow, decided by the exchange and not by the writer.
- At-the-moneyAn option whose strike price is closest to the spot price, so exercising it immediately would produce neither a gain nor a loss — the strike where the whole premium is time value and uncertainty peaks.
- Binomial pricing modelAn option pricing model that maps the underlying's possible prices as a tree of up and down moves at equally spaced time steps — accurate and flexible because it is iterative, but slow to compute.
- Break-even pointThe level of the underlying at which a position makes neither profit nor loss — for a bought call, strike plus premium; for a bought put, strike minus premium.
- Call optionA contract giving its buyer the right, but never the obligation, to buy the underlying at a fixed strike price — so the loss is capped at the premium and the gain is not.
- DeltaThe change in an option's premium for a one-rupee change in the underlying — the first and most used Greek, and the hedge ratio that says how much underlying to hold against an option position.
Where this is taught
Free preparation for NISM Series V-D← All terms