Most online brokers have been building up the data services on their websites in recent years, but the quality remains variable.
Firms that cater to more demanding clients – such as Interactive Brokers and Saxo Bank – now offer fairly comprehensive bundles of price and fundamental data, but others lack the detail and flexibility to make them useful for anything more than occasionally checking a figure. Some cheaper brokers have avoided adding such services in the first place.
So, while your broker’s website can often be a useful starting point, ultimately you may need access to third-party data – whether [...]
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