I have been working on a weekly newsletter of sorts, grappling with various ideas and attempting to find a good balance and length.  In this first newsletter, I intend to have no commentary; the only words will be the glossary, explaining the tables.
    Though I am still trying to decide on what amount of commentary I will include in this publication, I do intend to keep it freely available, and primarily focused on aggregating the data that I process for the past week and month.
    The tables included are:

1. 50 Worst Week Performance
2. 50 Worst Month Performance
3. 50 Best Week Performance
4. 50 Best Month Performance
5. 50 Worst Week Dollar Flow
6. 50 Worst Month Dollar Flow
7. 50 Best Week Dollar Flow
8. 50 Best Month Dollar Flow
9. Absolute Week Correlation to S&P 500 Less Than 10%
10. Sector/Category Performance

If you're interested, you can obtain the first weekly ETF Central newsletter here.  If you have any requests for specific content, criticism, or commentary of any kind, please do let me know.  I hope you find this useful.