I was thinking … technically when we go to buy / sell a stock in real life, we go to change the price of it, so we influence the performance of the stock.
For example, if I sell a stock I am increasing the offer, if the purchase I am increasing the demand, so based on the amount invested I will swing the price of the stock up or down.
Since virtual transactions are virtual, they do not affect the value of the stock so the price trend over time will technically be unreliable.
At least that for virtual portfolios the graphs are processed for each user in a different way.
How does it work?
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