Assume that S&P500 Index Futures trade at 4200 points. One contract of S&P 500 futures has the monetary value computed as the Index value (in this case 4200) times $50. Assume that S&P500 goes down to 4150, what is the gain (or loss) for somebody who holds a short position?

		50 loss
		50 gain
		2500 loss
		2500 gain