Let’s break down the cost of carry using an example relevant to equity futures in India:
Example:
Spot Price of Stock (S): ₹1,000
Risk-Free Interest Rate (r): 6% p.a.
Dividend Yield (d): 2% p.a.
Time to Maturity (t): 0.25 years (3 months)
Using the expanded model:
F = ₹1,000 × e^(0.06 - 0.02) × 0.25
F = ₹1,000 × e^(0.01)
F ≈ ₹1,000 × 1.01005 = ₹1,010.05
Thus, the fair value of the futures contract would be around ₹1,010.05, assuming no market distortion.
Interpretation:
If the actual traded futures price deviates significantly from ₹1,010.05, it may signal a deviation from theoretical pricing, which market participants often assess further to identify pricing anomalies.