On 23 March 20XX, the All Ordinaries Index closed at 5820.7 points and the June 20XX SPI 200 futures was priced at 5794 points. A speculator believes that share prices are likely to fall and so decides to sell June 20XX SPI 200 futures. On 17 April 20XX, when the All Ordinaries Index increases to 5841.5 points and the June 20XX SPI 200 futures increases to 5818 points, the speculator decides to reverse her position. How much profit / loss does the speculator make?

a) -$600

b) $600

c) $520

d) -$520 e) none of these answers