Associating Zoom Technologies with Zoom Video Communications is just a case of misattribution through lack of knowledge. https://markets.businessinsider.com/news/stocks/publicly-listed-zoom-video-communications-traders-buying-zoom-technologies-2019-4
Popularity of Corona (the pale lager) could be associated with the covid-19 outbreak but only through the coincidental pun association.
I cannot see how Tesla Inc. can be associated with the 19th/20th century engineer, Nikola Tesla, when he died long before the company was formed. I think that it is a tall order to associate the 2 together.
This is a prime example of correlation vs causation. Correlates do not necessarily mean causes. Or, as Wikipedia puts it
Correlation does not imply causation
You said in comments that
I understand that N. Tesla died a long time ago. However, recently after 2010, there are vast number of movies and short films about N. Tesla, and thus the popularity of N. Tesla increased (as identified by google metrics). Then comes the raise of Tesla Inc.
I don't know what metrics Google used, but please think about this.
Just because more people are aware of Nikola Tesla and his contributions toward electrical technology, it does not mean the increase in the stock market share price of Tesla Inc. was not due to the fact that there is a drive to get people to buy electric cars rather than fossil fueled cars for their environmental benefits.
Maybe it was another case of misattribution. After all, Ford was named after Henry Ford, the inventor of the Model T Ford, one of the first mass production vehicles, allowing Ford to achieve his aim of manufacturing the universal car. Bell Telecommunications was named after the inventor of the telephone,
Alexander Graham Bell, who also co-founded Bell Telephone Company in Boston, Massachusetts.
The list can go on.
Maybe there is a large group of investors who see the benefit of the work Tesla are doing and wish to invest in order to help Tesla Inc. to produce more efficient electric cars.
Maybe there is a large group of environmentalists who want to do the same.
It may be down to the "Halo Effect", put across in the answer by @ArnonWeinberg to What is the name of the bias that associate a thing as good because it has a relation to another good thing?
There is a lot of opinion and supposition within your question which needs to be addressed before these correlations can truly be attributed to the cause of these rises in figures.