This article from the WSJ describes the decline in the S&T profession. Below is an excerpt and graphic in case you’re unable to access WSJ content:

Every year, the industry built around the U.S. stock market loses more traders, salespeople and analysts as the electronification of trading squeezes out tasks once performed by human hands. The 12 biggest global investment banks employed 26% fewer of those workers at the end of last year than they did in 2010, according to industry-data firm Coalition Ltd.

 

S&T jobs 2010-2019

Equity S&T/Research jobs at top 12 global IB’s