One general tendency expects the first corrective
wave to drop about 38% of the next larger up trend,
while the second falls to 50% and the final thrust
all the way down to 62%. However, 5WDs will
sometimes correct 100% (or more) of the first wave,
creating a classic double top.
Selling
short during 5WDs is more difficult
than you might expect. The down trendline consists
of only two points unless the first Top lines up
with the subsequent two impulses.