Time value (also called extrinsic value) is the portion of an option’s premium that exceeds its intrinsic value. It represents the market’s assessment of the probability that the option will gain value before expiration. Time value reflects the remaining time, implied volatility, and other factors that could make the option more valuable.
- Time Value = Premium - Intrinsic Value
- Highest for ATM options, decays to zero at expiration
- Affected by time remaining and implied volatility
How Time Value Works
Time value reflects uncertainty and potential:
Time Value Components:
Time Value = Premium - Intrinsic Value
Example (Stock at $105):
ITM Call ($100 Strike):
Premium: $8.00
Intrinsic: $5.00
Time Value: $3.00
ATM Call ($105 Strike):
Premium: $4.50
Intrinsic: $0.00
Time Value: $4.50 (all time value!)
OTM Call ($110 Strike):
Premium: $1.50
Intrinsic: $0.00
Time Value: $1.50 (all time value)
ATM has highest time value because it has
most uncertainty about ending ITM or OTM.
Quick Reference: Time Value
| Option Type | Intrinsic Value | Time Value |
|---|---|---|
| Deep ITM | High | Low |
| ITM | Medium | Medium |
| ATM | Zero | Highest |
| OTM | Zero | Medium |
| Deep OTM | Zero | Low |
Example: Time Decay
30-Day ATM Option Decaying:
| Days to Expiry | Premium | Time Value | Daily Decay |
|---|---|---|---|
| 30 | $4.50 | $4.50 | $0.08/day |
| 20 | $3.70 | $3.70 | $0.10/day |
| 10 | $2.50 | $2.50 | $0.15/day |
| 5 | $1.50 | $1.50 | $0.25/day |
| 1 | $0.30 | $0.30 | $0.30/day |
| 0 | $0.00 | $0.00 | Expired |
Time decay accelerates near expiration.
Time value is the option premium minus intrinsic value—it’s what you pay for the remaining time and potential. ATM options have the highest time value. Time value decays to zero at expiration, with decay accelerating in the final weeks.
Factors Affecting Time Value
Time to Expiration
More time = more time value. Options lose time value as they approach expiration (theta decay).
Implied Volatility
Higher IV = higher time value. The market expects larger moves, making options more valuable.
Moneyness
ATM options have the highest time value. Deep ITM/OTM have less uncertainty.
Interest Rates
Higher rates slightly increase call time value, decrease put time value.
Time Value Decay (Theta)
| Period | Decay Rate |
|---|---|
| 90-60 days out | Slow, gradual |
| 60-30 days out | Accelerating |
| 30-14 days out | Faster |
| Final 14 days | Very rapid |
| Final week | Extreme |
Trading Implications
For Buyers
Time works against you. Need the move to happen quickly. Don’t overpay for time.
For Sellers
Time works for you. Collect premium, let it decay. Theta is your friend.
Strategy Selection
- Long options: Give yourself time
- Short options: Sell near-term for faster decay
Common Mistakes
-
Ignoring time decay – Holding options too long erodes profits.
-
Buying too much time – Paying for time you won’t use is wasteful.
-
Buying too little time – Not enough time for your thesis to play out.
-
Not understanding ATM – ATM has most time value to lose/gain.
How JournalPlus Tracks Time Value
JournalPlus tracks time value at entry and monitors decay, helping you understand how much you’re paying for time and when decay becomes critical.
