Not investment advice. Educational reading. See Disclaimer.
L.6 · BEGINNER · 3 MIN
Intrinsic vs Time Value: The Two Halves of Every Premium
Look at any option quote in the chain and you will see a single number — the premium. Hidden inside that number are two separate stories. The first is what the option is worth today if you exercised it right now: that is intrinsic value, the part anchored to math. The second is what the market is paying for the chance things move further before expiration: that is time value, the part anchored to hope. Learning to read those two halves separately is the difference between buying an option because it looks cheap and buying one because you understand what you are paying for.
The decomposition rule. Premium = Intrinsic value + Time value. ALWAYS. Intrinsic value is what the contract would settle for at expiry today: for a call, max(stock − strike, 0); for a put, max(strike − stock, 0). Time value is whatever is left over once intrinsic is subtracted out — never negative, always shrinking as expiration approaches.
§ 02
Position
Stock now
Strike
Premium
Intrinsic
Time value
Mid-life ITM call
$74
$70
$6.20
$4.00
$2.20
ATM call, 45 days
$74
$74
$2.60
$0.00
$2.60
OTM call, 45 days
$74
$78
$0.90
$0.00
$0.90
Same ITM call, expiry day
$74
$70
$4.05
$4.00
$0.05
§ 03
Time value is a melting ice cube. It bleeds out every single day the option exists, and the bleed accelerates as expiration approaches. By the closing bell of expiration day, time value is mathematically forced to zero — the contract is worth nothing more than its intrinsic value. This is why the same ITM call worth $6.20 mid-life is worth roughly $4.05 on its final day even though the stock has not moved at all.
§ 04
When you buy an option you are buying both halves of the premium but only one half is durable. Intrinsic value tracks the underlying dollar-for-dollar. Time value evaporates on a schedule the seller knows and is selling you. The retail-trader heartbreak — 'the stock moved my way and I still lost money' — almost always means the trader bought a fat time-value cushion and time melted faster than the stock paid.
§ 05
Pull up an option chain for any liquid stock. Pick a strike right at the money and a strike $5 above it, both at the same expiration. For each one, subtract intrinsic value (you computed it yourself: stock minus strike, floor at zero) from the mid-price. The remainder is what the market is charging you for time. Notice that the at-the-money strike has more time value than the out-of-the-money strike — uncertainty is most valuable when the outcome is most undecided.
§ 06
Stock is at $42. A $40-strike call has a mid-price of $3.10 with 30 days to expiration. How does that premium split into intrinsic and time value?
Five questions · AI feedback
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Sit with the ideas.
A trader buys a $55-strike call on a $58 stock for $4.40 with 60 days to expiration. The stock sits at exactly $58 every single day for the next 60 days and the call expires there. How does the position perform — and why?
