Hey everybody,

I’ve come across an issue with the Aroon indicator that I cannot solve .

From what I understand about the Aroon+, it reads 100 when the current candle reaches a new high among a determined number of candles.

So I tried the Aroon+ on a 1-minute timeframe with a period of 42.

On the first screenshot you may see that at midnight on November 30th-December 1st, the candle has reached a new high for the last 42 minutes and therefore the Aroon+ indicator reads 100. So far so good.

I then tried the Aroon+ on a 10-second timeframe with a period of 252 to match the above 1-minute period (252 x 10 sec = 2,520 seconds = 42 minutes).

On the second screenshot, you may see that at the exact same time, the candle reaches the new high seen above but the Aroon+ indicator doesn’t change a bit (blue circle on the screenshot). It should have reached its highest high at 00:00:40.

However, 3 minutes later, the Aroon+ value goes up to 92.85… This value shows that, 18 10-sec candles earlier, a new high had been reached.

This feels like the Aroon indicator missed it in the first place, but realized its mistake 3 minutes later… Am I doing something wrong or is that a bug?

Might it have something to do with the fact that it’s another month and therefore the wrong data is used?

I tried on both v10.3 and v11.

Aroon-1-min.png Aroon-10-sec.png