Stock pitch case study: Halvoren Tiles has revenue of Rs 2,400 crore and a 14% EBITDA margin expected to reach 17% as gas costs fall. The stock trades at Rs 576, 18x next year's EPS of Rs 32. Build the long thesis, the catalyst and the one risk that breaks it.

The thesis is that Halvoren keeps most of a gas saving that the market doubts, taking the margin from 14.0% to about 17.1% and EPS to about Rs 32. Operating leverage adds 1.5 points, gas 2.0 and a small price concession takes back 0.4. The catalyst is the first quarter on the new gas contract. The risk that breaks it is a price war: a cut of about 2% hands the whole saving to customers.

Say it before any numbers: the market is pricing Halvoren at 18x recovered earnings while peers with stable margins trade at 22x, because it doubts the recovery; the recovery is mostly contracted. A pitch needs a gap between what the price assumes and what you can show, and here the gap is the margin. If the margin reaches 17.1% and the market pays peers' 22x, the shares would be worth about Rs 707; if the margin stays at 14%, EPS is about Rs 24 and the same 18x gives about Rs 436.

A street food stall that sells 12% more plates without paying more rent keeps a bigger share of each plate; if its gas cylinder also gets cheaper, it keeps more again, unless it lowers prices to match the stall next door. Build the bridge in that order, one effect at a time, so each step can be challenged on its own. Volume up 12% against fixed costs up 3% lifts the margin to 15.5%. A 10% cheaper gas price on a cost that is 20% of revenue adds 2.0 points, to 17.5%. The 0.5% price concession takes it to 17.1%.

The catalyst is the first quarterly result on the new gas contract, when the saving shows in reported gross margin and the doubt behind the 18x multiple is tested. The risk that breaks it is price, not gas: every tile maker in the cluster gets cheaper gas, and a price cut of about 2.0% would hand the whole saving to customers. Each 10% move in the gas price is worth about Rs 5.0 of EPS, so watch dealer price lists monthly, not just gas prices. If you see list prices cut by more than 1%, the thesis is weakening before any result shows it.

Say what you do not know. Volume growth of 12% assumes the housing cycle holds, and the gas contract may have a price reset clause. A pitch that names its own soft spots is more convincing than one that does not.