StrikeLab / Market Lab
Build your market intuition.
Make a prediction. Change one assumption. See what the model actually does.
● Interactive model
Experiment 01
The price of uncertainty
Can an option become more valuable without the stock moving?
- 1Predict
- 2Experiment
- 3Explain
If volatility doubles and everything else stays fixed, will this call's model value rise or fall?
Baseline call$2.47
Your call$2.47
Model difference$0.00
BaselineYour experiment$ / share
View chart data
| Annual volatility | Baseline call | Experiment call |
|---|---|---|
| 10% | $1.34 | $1.34 |
| 11.4% | $1.49 | $1.49 |
| 12.8% | $1.65 | $1.65 |
| 14.2% | $1.81 | $1.81 |
| 15.6% | $1.97 | $1.97 |
| 17% | $2.13 | $2.13 |
| 18.4% | $2.29 | $2.29 |
| 19.8% | $2.45 | $2.45 |
| 21.2% | $2.61 | $2.61 |
| 22.6% | $2.77 | $2.77 |
| 24% | $2.93 | $2.93 |
| 25.4% | $3.09 | $3.09 |
| 26.8% | $3.25 | $3.25 |
| 28.2% | $3.41 | $3.41 |
| 29.6% | $3.57 | $3.57 |
| 31% | $3.73 | $3.73 |
| 32.4% | $3.89 | $3.89 |
| 33.8% | $4.04 | $4.04 |
| 35.2% | $4.20 | $4.20 |
| 36.6% | $4.36 | $4.36 |
| 38% | $4.52 | $4.52 |
| 39.4% | $4.68 | $4.68 |
| 40.8% | $4.84 | $4.84 |
| 42.2% | $5.00 | $5.00 |
| 43.6% | $5.16 | $5.16 |
| 45% | $5.32 | $5.32 |
| 46.4% | $5.48 | $5.48 |
| 47.8% | $5.64 | $5.64 |
| 49.2% | $5.80 | $5.80 |
| 50.6% | $5.96 | $5.96 |
| 52% | $6.12 | $6.12 |
| 53.4% | $6.28 | $6.28 |
| 54.8% | $6.44 | $6.44 |
| 56.2% | $6.60 | $6.60 |
| 57.6% | $6.75 | $6.75 |
| 59% | $6.91 | $6.91 |
| 60.4% | $7.07 | $7.07 |
| 61.8% | $7.23 | $7.23 |
| 63.2% | $7.39 | $7.39 |
| 64.6% | $7.55 | $7.55 |
| 66% | $7.71 | $7.71 |
| 67.4% | $7.87 | $7.87 |
| 68.8% | $8.03 | $8.03 |
| 70.2% | $8.19 | $8.19 |
| 71.6% | $8.35 | $8.35 |
| 73% | $8.50 | $8.50 |
| 74.4% | $8.66 | $8.66 |
| 75.8% | $8.82 | $8.82 |
| 77.2% | $8.98 | $8.98 |
| 78.6% | $9.14 | $9.14 |
| 80% | $9.30 | $9.30 |
Your assumptions
Strike $100 · risk-free rate 4.5% · no dividends
Make your prediction to unlock the experiment.
Keep the evidence
Your lab notebook
Your six most recent saved experiments. Restore the inputs or download a result to explain.
Change an input and save your first experiment.
Your work stays in this browser. No account needed.
Model lab, not live quotes. Black-Scholes assumes European exercise, no dividends, and constant volatility and interest rates. Values are dollars per share; price differences are not trading profit.