http://www.google.com/finance?chdnp...pto=NYSE:FAS&cmptzos=-18000&q=NYSE:FAZ&ntsp=0 In graph-both FAZ and FAS has fallen And theoretically they shold be go to zero. a)Is it shorting both easy money? Whats the catch? Or there are no free lunch? b)When both FAZ and FAS are closing to zero,are they both discarded and deleted from etf-s?