f/overrides/event-backup/dnmzx-dividend.csv
Greg Pomerantz bb8e39605e Event-history protection: backup dir, empty-download fallback, docs
Yahoo's 2026 event-feed change (capitalGain events dropped for some
funds; no events at all for terminated tickers) can wipe good event
history on re-download. Defense in depth:

- overrides/event-backup/: last-known-good copy of every dividend/
  capitalGain file (8,192 files, 58 MB); refresh with
  scripts/backup_events.py after each dump update
- data.py event_file(): frozen > data-root (while populated) > backup;
  used by panel reads, verify_official, and the double-listing scanner
- README: capital-gain files are mutual-fund-only in this dump; Yahoo
  has no LT/ST split (tax.py taxes capg at lt_rate; the per-fund split
  would come from fund-company annual tax statements or commercial feeds)
- tests: exact Timestamp .loc keys (pandas 3.x string matching returns a
  Series on large DatetimeIndex)
2026-08-31 21:59:25 -04:00

339 lines
6.6 KiB
Plaintext

Date,Dividends
2008-06-25,0.051000
2009-06-25,0.054000
2012-04-30,0.051000
2012-11-29,0.009000
2015-06-30,0.048000
2020-07-31,0.036000
2003-05-23,0.056000
2004-04-23,0.052000
2005-08-25,0.053000
2015-10-30,0.050000
2024-09-30,0.037000
2000-12-22,0.069000
2014-04-30,0.050000
2024-06-28,0.036000
2000-06-20,0.068000
2001-12-24,0.069000
2003-08-25,0.053000
2004-10-25,0.049000
2003-03-25,0.055000
2005-05-25,0.051000
2007-02-23,0.054000
2008-07-25,0.055000
2010-11-30,0.052000
2010-12-31,0.053000
2013-04-30,0.049000
2015-11-30,0.051000
2020-10-30,0.033000
2023-01-31,0.028000
2005-03-24,0.048000
2014-06-30,0.047000
2025-10-31,0.041000
2001-03-26,0.062000
2006-01-25,0.052000
2006-04-25,0.052000
2017-01-31,0.047000
2022-04-29,0.025000
2023-02-28,0.027000
1999-02-25,0.072000
2004-12-23,0.053000
2007-01-25,0.054000
2007-11-21,0.048000
2021-06-30,0.026000
2000-10-25,0.065000
2003-04-25,0.065000
2003-11-25,0.063000
2025-09-30,0.041000
2012-02-29,0.049000
2012-10-31,0.050000
2017-05-31,0.047000
2019-01-31,0.043000
2024-11-29,0.037000
2017-11-30,0.046000
2018-04-30,0.041000
2001-07-25,0.063000
2002-06-25,0.062000
2003-02-25,0.062000
2004-03-25,0.048000
2008-05-23,0.055000
2010-10-29,0.053000
2019-07-31,0.041000
2023-08-31,0.031000
2024-10-31,0.038000
1999-04-23,0.068000
2005-10-25,0.051000
2011-07-29,0.053000
2012-06-29,0.051000
2020-02-28,0.035000
2020-11-30,0.030000
2003-07-25,0.061000
2015-03-31,0.048000
2018-10-31,0.044000
2022-10-31,0.027000
2024-03-28,0.037000
2000-07-25,0.065000
2006-12-22,0.056000
2007-05-24,0.050000
2018-02-28,0.040000
2019-11-29,0.051000
2022-02-28,0.023000
2011-10-31,0.053000
2016-06-30,0.047000
2006-08-25,0.057000
2010-09-30,0.052000
2013-12-31,0.051000
2015-05-29,0.049000
2025-03-31,0.040000
2022-11-30,0.027000
2026-03-31,0.042000
2006-07-25,0.051000
2008-12-24,0.052000
2013-08-30,0.051000
2014-10-31,0.053000
2020-06-30,0.035000
2022-09-30,0.026000
1999-01-25,0.002000
2005-09-23,0.053000
2013-11-27,0.002000
2021-08-31,0.026000
2002-05-24,0.068000
2016-03-31,0.049000
1999-12-22,0.003000
2004-09-24,0.055000
2009-12-24,0.054000
2020-04-30,0.038000
2021-03-31,0.030000
2022-06-30,0.026000
1999-08-25,0.067000
1999-10-25,0.062000
2006-09-25,0.050000
2010-06-30,0.052000
2018-11-30,0.055000
2003-12-24,0.054000
2016-11-30,0.050000
2026-04-30,0.041000
2008-04-25,0.057000
2008-11-25,0.051000
2019-02-28,0.039000
2023-05-31,0.031000
2025-02-28,0.036000
2002-12-24,0.059000
2009-01-23,0.053000
2009-07-24,0.054000
2010-08-31,0.053000
2020-01-31,0.040000
2021-11-30,0.025000
2019-08-30,0.043000
2021-04-30,0.028000
2026-06-30,0.041000
1999-09-24,0.070000
2000-09-25,0.064000
2012-05-31,0.053000
2011-12-30,0.052000
2012-07-31,0.050000
2013-05-31,0.051000
2017-06-30,0.049000
2023-09-29,0.031000
2002-07-25,0.062000
2010-01-29,0.054000
2022-05-31,0.027000
2025-06-30,0.039000
2005-06-24,0.056000
2006-11-22,0.049000
2008-10-24,0.052000
2016-02-29,0.045000
2020-03-31,0.037000
2023-03-31,0.030000
2005-07-25,0.050000
2010-11-24,0.003000
2016-05-31,0.047000
2025-08-29,0.041000
2026-07-31,0.041000
2001-08-24,0.067000
2007-03-23,0.050000
2009-04-24,0.056000
2011-11-30,0.051000
2017-07-31,0.043000
2022-03-31,0.026000
2000-08-25,0.071000
2009-02-25,0.056000
2014-02-28,0.047000
2018-01-31,0.045000
2000-11-24,0.071000
2015-02-27,0.045000
2019-03-29,0.044000
2018-12-31,0.041000
2023-10-31,0.034000
2001-10-25,0.063000
2006-02-24,0.055000
2013-03-28,0.048000
2016-12-30,0.047000
2017-08-31,0.045000
2018-09-28,0.038000
2014-07-31,0.050000
2015-09-30,0.047000
2018-07-31,0.042000
2020-11-27,0.002000
2025-11-28,0.040000
2020-05-29,0.037000
2025-01-31,0.039000
2006-06-23,0.053000
2007-04-25,0.054000
2009-09-25,0.057000
2011-01-31,0.054000
2014-05-30,0.052000
2017-09-29,0.046000
2002-03-25,0.060000
2007-07-25,0.052000
2014-11-28,0.045000
2018-06-29,0.044000
2024-07-31,0.038000
2026-02-27,0.039000
2022-12-30,0.028000
2002-10-24,0.059000
2005-11-25,0.059000
2005-12-23,0.050000
2007-08-24,0.054000
2007-12-21,0.053000
2010-07-30,0.052000
2011-04-29,0.053000
2012-01-31,0.053000
2012-12-31,0.049000
2017-03-31,0.051000
2021-05-28,0.028000
2024-04-30,0.034000
2025-07-31,0.041000
2024-08-30,0.038000
2000-04-25,0.065000
2011-05-31,0.053000
2011-08-31,0.053000
2012-09-28,0.049000
2014-09-30,0.047000
2020-08-31,0.035000
2004-08-25,0.051000
2009-08-25,0.051000
2011-03-31,0.055000
2011-11-29,0.003000
2025-05-30,0.039000
2014-08-29,0.049000
2016-09-30,0.048000
2025-04-30,0.039000
2003-10-24,0.056000
2004-06-25,0.058000
2009-10-23,0.049000
2015-04-30,0.047000
2015-12-31,0.048000
2021-10-29,0.025000
2006-10-25,0.051000
2007-10-25,0.051000
2009-03-25,0.049000
2015-07-31,0.053000
2016-01-29,0.048000
2017-12-29,0.045000
2002-08-23,0.063000
2011-02-28,0.051000
2013-01-31,0.051000
2004-05-25,0.051000
2005-04-25,0.051000
2012-08-31,0.049000
2021-12-31,0.025000
1999-06-25,0.073000
2001-04-25,0.069000
2004-11-24,0.054000
2006-05-25,0.052000
2018-03-29,0.046000
2024-12-31,0.040000
2001-05-24,0.061000
2003-01-24,0.064000
2013-02-28,0.046000
2015-01-30,0.052000
2022-01-31,0.025000
2024-02-29,0.034000
2001-02-23,0.073000
2025-12-31,0.043000
2000-05-25,0.065000
2013-07-31,0.051000
2016-10-31,0.043000
2019-12-31,0.035000
2021-01-29,0.031000
2022-08-31,0.027000
2008-08-25,0.050000
2016-08-31,0.047000
2021-07-30,0.026000
2019-04-30,0.041000
2019-06-28,0.035000
1999-12-27,0.066000
2000-02-28,0.074000
2005-01-25,0.051000
2014-03-31,0.052000
2014-12-31,0.049000
2018-08-31,0.047000
2023-11-30,0.034000
2026-01-30,0.040000
2002-11-25,0.068000
2003-09-25,0.060000
2019-05-31,0.042000
2019-09-30,0.037000
2000-03-24,0.059000
2002-09-25,0.065000
2004-11-23,0.003000
2022-07-29,0.027000
2013-11-29,0.050000
2021-02-26,0.027000
1999-07-23,0.060000
2001-01-25,0.068000
2004-01-23,0.052000
2006-03-24,0.049000
2007-09-25,0.051000
2012-11-30,0.049000
2011-09-30,0.051000
2013-09-30,0.049000
2016-07-29,0.046000
2017-04-28,0.042000
2017-10-31,0.044000
1999-05-25,0.064000
2001-09-25,0.064000
2003-06-25,0.058000
2008-02-25,0.050000
2008-03-25,0.050000
2023-07-31,0.031000
2020-09-30,0.033000
2023-04-28,0.029000
2000-01-25,0.064000
2001-06-25,0.069000
2002-01-24,0.063000
2004-02-25,0.055000
2005-02-25,0.062000
2015-08-31,0.047000
2023-12-29,0.036000
2008-09-25,0.053000
2014-01-31,0.052000
2024-05-31,0.037000
2021-09-30,0.025000
2023-06-30,0.030000
2007-06-25,0.055000
2009-11-25,0.061000
2010-02-26,0.049000
2010-03-31,0.055000
2012-03-30,0.053000
2018-05-31,0.044000
2026-05-29,0.042000
2013-10-31,0.051000
2016-04-29,0.049000
1999-03-25,0.061000
2001-11-23,0.065000
2002-02-25,0.072000
2004-07-23,0.047000
2009-05-22,0.051000
2010-05-28,0.054000
2017-02-28,0.043000
2019-10-31,0.042000
2024-01-31,0.036000
1999-11-24,0.068000
2002-04-25,0.066000
2008-01-25,0.060000
2011-06-30,0.052000
2013-06-28,0.049000
2020-12-31,0.030000