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REDDIT

S&P total returns data - why so much variation from sources?

R
Feb 23, 2025 · 19:17

Hi,

I am trying to find a reliable source of S&P total return data. When I started looking around, different sources had different values. Can someone help me with some reliable info?

Except for ycharts and Slickcharts, I don't see any consistency. Even data from Prof. Shiller seems odd. Even S&P 500 composite values don't seem to match any other sources.

Any thoughts?

||Shiller|Slickcharts|ycharts|yahoo|
|:-|:-|:-|:-|:-|
|2016|18.2%|11.96|||
|2017|22.5%|21.83|||
|2018|\-6.2%|\-4.38|\-4.38%||
|2019|25.0%|31.49|31.49%||
|2020|16.2%|18.4|18.40%||
|2021|13.7%|28.71|28.71%|23.29%|
|2022|\-17.3%|\-18.11|\-18.11%|\-8.20%|
|2023|19.8%|26.29|26.29|20.80%|
|2024|22.8%|25.02|25.02|25%|