Pitch a stock on a margin recovery thesis and express it with a call spread sized so the worst case is 0.5% of a Rs 100 crore book. Show the payoff at three prices.

Buy the 600 call and sell the 700 call on 178,500 shares, 714 lots, for a net Rs 28 a share, so the most the book can lose is Rs 49.98 lakh. At 550 the whole premium is lost; at 650 the spread makes Rs 39.3 lakh; at 750 it makes its capped maximum of Rs 1.29 crore. The pitch is a margin recovery the market has not priced, and the spread turns that view into a position with a known worst case and a payoff concentrated where the thesis says the stock will be.

A pitch is a claim, a reason the market is wrong, and a thing that will prove it. Varada's margin fell for a reason that is reversing: fixed-price contracts that could not pass on steel costs reset over the next two quarters, and steel has stopped rising. At a 12% margin on the same multiple the shares are worth near 700, and the next two quarterly results are the proof. Say what breaks it in the same breath: steel rising again, or customers refusing the reset. An interviewer scores the pitch on whether the catalyst and the kill condition are both named, not on the number.

Think of a bet with a friend that the cricket score will land between two numbers: you pay less than for an open-ended bet because you give up the extreme. The thesis says 700, not 900, so the 700 call you sell gives away upside you do not believe in, and its Rs 10 cuts the cost of the view from 38 to 28. That matters because the loss limit is in rupees: at Rs 28 a unit the book can hold Rs 50 lakh over 28, about 178,571 units, which is 714 lots of 250, or 178,500 shares, with a worst case of Rs 49.98 lakh. Buying the stock with the same Rs 50 lakh at risk means owning only about 8,333 shares, and a 5% stop would be a far smaller position again.

The maximum gain is 72 against a maximum loss of 28, about 2.6 to 1, and the breakeven is 628, less than 5% above the current price. Compare the alternative that candidates usually reach for first, the outright 600 call. With the same Rs 50 lakh at risk it buys 131,500 units at 38; at 650 it makes only Rs 15.8 lakh against the spread's 39.3, and it overtakes the spread only above about 736, a price the thesis does not claim.

Close with the limits. The payoffs are at expiry; before then the spread's value moves with implied volatility and time, and a quick rally to 650 in the first month shows less profit than the table. The short 700 call is covered by the long 600 call, so no extra margin beyond the premium is usually needed, but confirm the exchange's treatment. And the worst case is 0.5% of the book only if the whole spread is held to expiry; closing early in a wide market can cost more than the premium.