Visible in this chart is the last retrograde and the growing influence of the current retrograde cycle. Compare the two. Transiting Mercury in retrograde is a regular cycle occurring three or four times a year for about 24 days. While this is more frequent than any other planet, Mercury is still only retrograde 19% of the time. This is far less than Jupiter outwards, but more than Venus and Mars.
The retrograde Mercury phase is just one part of the retrograde cycle. The whole cycle includes Mercury going direct, retrograde, and direct again over the same degrees, or the retrograde zone. The two direct phases are called the shadow periods. We are in a retrograde shadow period currently. This is by no means investment advice, it is simply useful as an illustration of something that a great deal of humanity irrationally "feels" affects their psychology and life across millennia and cultures. This is for fun and is not investment advice- Amor Fati fellow traders!