  We calculate the rare fluctuations of the $S$-matrix on top of the full
next-to-leading order corrections in the center of mass frame. The relevant
result in the saturation regime shows that the exponential factor of the
$S$-matrix is $\sqrt{2}$ as large as the result which emerges when the rare
fluctuation effects are taken into account. We find that the factor of
$\sqrt{2}$ change of the exponential factor is induced by the gluon loop
corrections which compensate part of rapidity decrease of the $S$-matrix made
by quark loops and lead to the rare fluctuations becoming important again. To
ensure the relevant results of the $S$-matrix are independent of the frame
choice, the rare fluctuations of the $S$-matrix are also derived in a general
frame. It is found that all the results are consistent with each other in both
frames.
