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Date/Time: Thu, 16 May 2024 04:14:44 +0000



Post From: Article about Sierra Chart Market Statistics and their Accuracy

[2016-02-14 21:24:06]
Sierra Chart Engineering - Posts: 104368

Out of interest did you discover why the jump in stocks in the basket on 14 December?

In this chart here:
http://www.sierrachart.com/image.php?l=1455484843825.png

You can see that the number of S&P 500 stocks drops to around 480 to 483 during 2015-8-31 to 2015-12-11.

Possibly the number of stocks in the index was actually was reduced during that time.

Possibly during the trading day not all of the S&P 500 stocks were trading during that time. This would seem very unlikely though.

Possibly the list of S&P 500 stocks that we use, was missing some of the S&P 500 stock symbols.

Possibly the data feed that we use to calculate the statistics from was not transmitting data for those stocks. Although this is extremely unlikely.

So we do not know.
Sierra Chart Support - Engineering Level

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