Why do stock (and forex) prices change over weekend, when the market is supposed to be closed?

External question — Personal Finance Stack Exchange Author: davidbaguetta Original post: https://money.stackexchange.com/questions/140006 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. I am checking out Apple's stock on TradingView on a Sunday night and it shows its price fluctuating? How is that possible? Isn't the stock market supposed to be closed on weekends? Same with forex. If I open EUR/USD, its price has also been fluctuating throughout the entire weekend, even though the market is closed.