September 16, 2021 at 2:18 pm #66061
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I have checked the codes in your post with a few alternative sources and can confirm we are showing as much data as is available.
- sp400-10101010 – Data stops on September 18 2020.
- sp500-10101010 – Data stops on May 21 2020.
- sp500-10102050 – Data stop on March 3 2016.
Based on what I have found the data we have is correct and reflects the same end dates.