>>12601689Depends on your goal. Econometrics is the study of predicting/modeling the current stock market, while things like these books are more "pure math, assume perfect market/spherical cows on frictionless surface" for studying finance from a pure math perspective, but wont necessarily give you any deep insight into predicting the stock market (I've gone through about 3/4 of Methods of Mathematical Finance, the first half is calc 1-3 + some linear algrebra, only using markets as your examples)
Methods of Mathematical Finance is the de-facto textbook for finance taught in most programs, so if you are comfortable with calculus, it could be good if you want the "pure math"
If you are trying to make money- these wont help.
The best bet for a real breakthrough in stock market predictions are, imo, learning ML with something like a RNN, and figure out if you can, say, scrape different sources of information (twitter, reddit) and use NLP to see if you can predict mass-market moves from the "global perspective" of what people are talking about.
That requires a bit of thought and infrastructure, however.
Anything else just wont do it, and even this is probably not going to be a life-changing thing.