Solution :
Given :
The stock index contracts at = $ 394.85
Index = $ 392.54
Risk fee rate = 2.83 %
Dividend = 2.08 %
Now take long position on the index at $ 392.54 per share
After 75 days, they have to pay $ 392.54 + 392.54 x 2.83 x 75/365
= $ 394.823
Take s short position on the stock index futures contract on $ 394.85 per share.
Dividends received = $ 392.54 x 2.08%
= $ 8.164
Therefore, there is an arbitrage opportunity.