I've found their financial page to be one of the best free offerings around. Some of the data and its update frequency are additional monthly fees with my brokerage.
Yes! Back in the day (around 2012-2015) I did a bunch of regressions in R using YF data to land on my target portfolio value tilt. Certainly not something anyone has to do, but interesting for a finance nerd.
Oh man. I forgot about Yahoo Finance. We had a class project in Econ in college circa 2005 that involved making market predictions based on Yahoo Finance with a couple points of your grade based on how well you did.
Google Finance is a much nicer looking product in terms of design, but the data it has is pretty weak.
Yahoo Finance has much more detailed financials for a whole bunch of asset classes. For ETFs it has detailed performance data. For equities, you can get (and download) data on stuff like dividend history, stock splits.
Just see for yourself. Pick a few assets and compare. It's night and day how much more detailed YF data is. The only real thing that GF has going for it is in Google Sheets you can put =GOOGLEFINANCE("symbol") and get the current price of that asset (you can also give it a second argument for other attributes, but the data on offer is pretty limited compared to YF).
I was unaware this existed but when comparing a ticker on both platforms Yahoo offers a lot more information and metrics, it's nice that there's no click bait news articles being shown for every ticker you look up on Google Finance though.
Google Finance looks nicer on the surface, but doesn't have nearly as much data. It doesn't have options for example. I feel like Google had a great opportunity with finance and let it wither like so many other things.
I remember having a made up portfolio on Google finance where I pretended to invest money in the stock market by pretending to buy a d sell shares and record my performance.
It was terrible I lost a lot of imaginary money. Made me realize I'm not good at picking stocks. Anyway the point is that portfolio no longer exists on Google Finance. I think they rewrote the code behind Google finance at least twice.
Now if only i could convince it to go to https://finance.yahoo.com/ instead of https://uk.finance.yahoo.com/ when in the office it'd be great.