Third video in the series on learning options with AI. We already saw what a Call is and what a Put is. Today it’s the turn of one of the concepts that confuse beginners the most and that explains something seemingly impossible: how you can buy an option, get the direction right, watch the stock rise… and still lose money. To understand it we need three ideas: moneyness, time value and theta.
Moneyness: ITM, ATM and OTM
As we asked ChatGPT, ITM, ATM and OTM are simply ways of saying where the price is relative to the strike. With a stock trading at $100:
- Call with strike 90 (below the price) — you have the right to buy at 90 something worth 100. It has immediate value: it’s In The Money (ITM)
- Call with strike 100 (equal to the price) — it’s At The Money (ATM)
- Call with strike 110 (above) — the right to buy at 110 something worth 100, right now with no real value: it’s Out of The Money (OTM)
With puts it’s exactly the opposite (because the put is the mirror image of the call): strike above the price = ITM, strike below = OTM.
Why an option has value: intrinsic + extrinsic
Here’s the important part. An option has two types of value:
- Intrinsic value — the real value it would have if you exercised it right now. A strike-90 call with the stock at 100 has 100 − 90 = $10 of intrinsic value
- Extrinsic (or time) value — the value of the future possibility. Even if an option is OTM, it can still get into the money before expiration, and that hope has a price
If that call is worth more than $10, the rest is time value: what the market charges for the time remaining for the stock to move in your favor. As the AI sums it up well: the market pays for time.
The effect of expiration: 1 day vs 2 years
The example is brutal. Tesla at $100, you buy a strike-120 call (20% above):
- If it expires tomorrow — it’s worth almost nothing. The probability of Tesla rising 20% in a single day is extremely low
- If it expires in two years — it’s worth much more. In two years, Tesla rising 20% is more than likely
The same option, same strike, only the time changes — and the premium changes radically. Time is probability, and probability is value.
The silent enemy: theta (time decay)
And here comes the key concept: options lose value as time goes by, even if the price doesn’t move. This is called theta or time decay.
It makes total sense: if you buy a call and you have a month for the stock to rise, each day that passes without reaching your target is one day less of opportunity. Time, which is your margin, keeps getting used up. That’s why the extrinsic value keeps evaporating day by day until it reaches zero at expiration.
The big beginner trap
This happens much more than you’d imagine: you buy a call, the stock goes up… and you still lose money. Why?
- Too much time passed and theta ate the premium
- Volatility fell (the option “deflated”)
- The rise was too small to beat what you paid
Options are more complex than “if it goes up, I win”. The price of an option depends on the direction of the move, the speed, the time remaining and the volatility. Not just on whether it goes up or down.
Seeing it in ProRealTime
All of this is crystal clear in the options chain of ProRealTime. The platform itself colors the strikes according to their moneyness: ITM calls (below the price) in one shade, OTM ones in another, and it clearly marks where the current price is (the ATM). With puts, the gradient goes the other way.
The Tesla example, with real numbers
Tesla call strike 500, expiring in 1 day → premium ≈ $4 and a POP (probability of profit) of 0%
The same call, expiring in 2 years → premium ≈ $10,500 and a POP of 27%
Same strike, same stock: only the time changes, and the price shoots up
The premium is telling you, in the form of price, how likely the market considers that scenario. In one day almost nothing can happen; in two years anything can happen.
Conclusion
The most important idea in this video: the price of an option doesn’t depend only on whether the stock goes up or down, but on the direction, the speed of the move, the time remaining and the volatility. That’s why you can get the direction right and still lose — if it took too long, if volatility fell or if the move fell short. Understanding intrinsic value, extrinsic value and theta is what separates the person who thinks “options = directional lottery” from the one who truly understands what they’re buying. In the next video we dive right into volatility. Don’t forget to comment and like to enter the giveaway.
