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If its not a data issue, this is also pretty standard behavior from market makers, who make a profit from the spread between these two prices and will often put up identical/similar size blocks both s …

This can arise with very thinly traded stocks for large blocks of shares. …

The key thing about these types of analysis is they are just a form of data dredging if you don't have a clear hypothesis before you start exploring the back tests. If you left a basic evolutionary te …

Is hard to ever answer 100% on a question like this as different market makers trade different sizes and strategies, but two key things often happen in a crisis which market makers like: Spreads typ …

Worth noting that this question is basically impossible to answer, as stock markets can easily collapse or increase with little/no money actually traded, or have the inverse effect, with huge sums tra …

To add to Dheer's point, the vast majority of retail investors will have to pay fees and use up a large amount of valuable time on the entrance and exit of each stock, and each and every time you reba …

These are probably block trades. See here, and for Indian markets specifically here for more details on how block trades typically work.

This is closely related to the fragility of things and can easily be observed in times of war: it is much quicker and easier to destroy something than it is to build it. Companies can easily be regula …

It's important to think of a market order book as an object of more dimension than just price. Available liquidity generally has a huge influence on flash crashes, as once the liquid part of the order …

No UK stamp duty on foreign stocks. Dividends can be taxed at country of origin as you observe. …

First key thing here is that if you don't know the answer to this question you probably shouldn't be buying individual stocks: you're effectively driving a car without a licence or idea how it handles. … Because of the above, virtually all people in your position are better off putting money into broad indexes of stocks rather than individual ones, where they are much better protected from the mistakes …

Market Watch has an IPO calender with details of upcoming IPOs that should provide most of the information you need.

1) is the key flaw in this is in many asset situations prices jump from x to y with little to no trading in between (and can actually reverse the asymmetry you think you are exploiting on the upside, …

Not familiar with IQ option, but looks like they are just offering synthetic calls and puts on the underlying and behaving like a bookmaker does on sports events. Guessing that as they can't current …

EV/EBITDA is one of many shorthand models used to try and approximate the value of a business. In this specific case it is a highly rough approximation of how many years of EBITDA it would take to cov …