What is Deep ITM? A Simple Guide for Indian Traders
A deep in-the-money (deep ITM) option has its strike far below the price for a call, or far above the price for a put. It has large intrinsic value and very little time value, so it moves almost exactly like the underlying stock or index.
Deep in-the-money options are the closest an option gets to behaving like the stock itself. They are favoured by traders who want close tracking with defined risk.
Deep ITM options trade differently from cheap OTM ones. We will cover the idea, an example, and the practical takeaways. You can compare them on Stockk.
Key Takeaways
- A deep ITM option has a large intrinsic value.
- Its strike is far below the price (call) or far above (put).
- It has very little time value and decays slowly.
- Its delta is close to one, so it tracks the price.
- It costs more but behaves like the stock.
Why do traders use deep ITM options?
Suppose Reliance trades at ₹2,900 and you hold a ₹2,600 call. The option is deep ITM with ₹300 of intrinsic value. It behaves much like owning the stock, gaining or losing nearly rupee-for-rupee as Reliance moves.
Deep ITM options have a delta close to one, so they track the underlying almost perfectly while needing less capital than buying the stock or full futures. They suffer minimal time decay because little of their premium is time value.
Using deep ITM as a stock substitute
A popular use of deep ITM options is as a cheaper stand-in for the stock. Imagine you are bullish on Reliance but do not want to lock up the full price. A deep ITM call moves almost rupee-for-rupee with the stock but costs less than the shares. You get similar upside with less capital, and your risk is capped at the premium instead of the full stock value.
What are the trade-offs?
- Higher cost: the large premium ties up more capital
- Lower leverage ratio: the high price means less leverage than cheap options
- Liquidity: deep strikes can have wider bid-ask spreads
Deep ITM vs ATM
| Feature | Deep ITM | ATM |
|---|---|---|
| Delta | Near 1 | Near 0.5 |
| Time decay | Very low | High |
| Cost | High | Medium |
| Tracks price | Closely | Loosely |
Ready to put this into practice? Stockk lets you trade options, with Indira Securities as your SEBI-registered broker. A demat account is free to open, and the Knowledge Center has more guides like this one.
Futures and Options are leveraged products and carry a high risk of loss that can be more than the money you put in. This article is only for learning and is not a recommendation to trade in derivatives.
Frequently Asked Questions
What delta does a deep ITM option have?
Deep ITM call options have deltas near one, meaning they move almost in step with the underlying. The deeper ITM, the closer to one.
Do deep ITM options decay much?
No. They have little time value, so time decay barely affects them. Their value is mostly intrinsic, making them stable.
Why use a deep ITM option instead of the stock?
It offers similar exposure with less capital, providing leverage, and caps risk at the premium. The trade-off is liquidity and the time-value cost.
Are deep ITM options liquid?
Liquidity varies; far-out strikes can have wider spreads and thinner volume. ATM strikes are usually more liquid, so check the bid-ask before trading.
When should I prefer deep ITM options?
When you want close tracking of the underlying with defined risk and minimal decay.
Investments in securities market are subject to market risks. This article is for educational purposes only and does not constitute investment advice.
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