Suppose the? S&P 500 is at 857?, and a? one-year European call option with a strike price of ?$584 has a negative time value. If the interest rate is 5%?, what can you conclude about the dividend yield of the? S&P 500? ? (Assume all dividends are paid at the end of the? year.)
The dividend yield must be at least ? %. (Round to two decimal places)