Here in the UK, large ETFs are usually offer both accumulating and distributing dividend treatments. Over time, dividend reinvestment has a significant contribution to total return, as shown below for the S&P500:

I couldn’t to find an easy way to determine total return for arbitrary stocks, so I wrote a small tool does this using AlphaVantage through Pandas Datareader.

The tool is available on PyPI using pip install gainz-jwf. The code is hosted in Github.