Yes, but:

1. These summaries were terrible. 2. The economics of these summaries was to get into Google News, spam newsfeeds, and use this to drive traffic to your paid product. This business model stopped working when Google News stopped accepting new sources for their Finance feed...because it was full of spam (I worked for a company that tried to start in this area with human writers, didn't work because they couldn't get onto Google).

Simply Wall St was one company that made tens of millions doing this, there were many others...but none were doing anything that is related to what OP is doing.

Every time someone will tell you something can't be done...this very clearly can work, it is not easy but ad revenue for financial services is still completely ludicrous and most services doing this are complete garbage (the news articles above the OP is producing are far from it, I worked in equity research, this is better than most journalism in the space...which is now non-existent...and probably at the level of a junior analyst).