How do I refer to the historical data of different stocks in Pinescript?

Question

How do I refer to the historical data of different stocks in Pinescript?

I want to refer to the historical data of Apple and Microsoft

Normally, Pinescript automatically refers the close function to the symbol that is on the chart.

So how do I define that the close function refers to different stocks?

For example: Define that as an entry rule the closing price of MSFT, AAPL and SPX must be greater than the previous day's price.

Answer 1

You should use the security function for this together with the History reference operator

The first parameter is the ticker , so you can write the stock's name you want to get the data from there.

Then you can request previous day's close price like below:

//@version=5
indicator("My script", overlay=true)
apple_prev_day_close = request.security("BATS:AAPL", "D", close[1])
plot(apple_prev_day_close)