f/overrides/event-backup/jpc-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

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Date,Dividends
2004-01-13,0.101000
2016-08-11,0.067000
2023-04-13,0.044000
2024-04-12,0.048000
2014-11-12,0.063000
2019-07-12,0.061000
2005-01-12,0.101000
2023-01-12,0.047000
2023-09-14,0.044000
2025-04-15,0.067000
2003-08-13,0.101000
2013-03-13,0.063000
2024-07-15,0.067000
2023-10-12,0.044000
2025-06-13,0.067000
2005-12-22,0.193000
2006-11-13,0.095000
2007-12-12,0.285000
2012-06-13,0.063000
2005-10-12,0.085000
2009-09-11,0.155000
2017-03-13,0.064000
2022-12-14,0.053000
2021-10-14,0.053000
2010-03-11,0.170000
2010-06-11,0.170000
2012-12-12,0.063000
2016-09-13,0.067000
2015-04-13,0.066000
2021-08-12,0.053000
2016-10-12,0.067000
2024-05-14,0.048000
2003-11-12,0.101000
2004-09-13,0.101000
2005-06-13,0.090000
2005-09-13,0.085000
2003-09-11,0.101000
2006-03-13,0.085000
2015-08-12,0.067000
2017-09-14,0.065000
2020-09-14,0.053000
2026-05-15,0.063000
2005-11-10,0.085000
2008-12-11,0.188000
2012-07-11,0.063000
2014-04-11,0.063000
2015-02-11,0.063000
2018-02-14,0.065000
2023-11-02,0.042000
2024-09-13,0.067000
2020-12-14,0.053000
2007-09-12,0.285000
2013-04-11,0.063000
2015-01-13,0.063000
2016-06-13,0.067000
2016-12-13,0.064000
2019-09-12,0.061000
2007-02-13,0.095000
2025-09-15,0.067000
2007-03-13,0.095000
2014-12-11,0.063000
2015-11-10,0.067000
2006-02-13,0.085000
2018-08-14,0.061000
2006-01-11,0.085000
2019-06-13,0.061000
2018-12-13,0.061000
2021-09-14,0.053000
2004-10-13,0.101000
2018-10-12,0.061000
2022-08-12,0.053000
2004-05-12,0.101000
2012-03-13,0.190000
2015-09-11,0.067000
2019-02-14,0.061000
2003-06-11,0.101000
2022-06-14,0.053000
2005-12-13,0.085000
2014-02-12,0.063000
2016-11-10,0.067000
2025-02-14,0.067000
2016-05-11,0.067000
2020-07-14,0.053000
2022-04-13,0.053000
2003-05-14,0.101000
2003-10-10,0.101000
2004-07-13,0.101000
2013-08-13,0.063000
2016-03-11,0.067000
2017-04-11,0.064000
2018-07-12,0.061000
2025-03-14,0.067000
2003-12-23,0.057000
2011-03-11,0.180000
2015-03-11,0.066000
2020-05-14,0.053000
2015-07-13,0.067000
2018-03-14,0.065000
2020-08-13,0.053000
2013-10-10,0.063000
2024-08-15,0.067000
2025-11-14,0.067000
2024-06-14,0.067000
2026-07-15,0.063000
2022-07-14,0.053000
2012-11-13,0.063000
2017-02-13,0.064000
2018-01-11,0.065000
2018-11-14,0.061000
2018-06-14,0.061000
2020-01-14,0.061000
2023-11-15,0.002000
2019-11-14,0.061000
2021-04-14,0.053000
2022-10-13,0.053000
2026-03-13,0.063000
2020-06-12,0.053000
2022-05-12,0.053000
2006-04-11,0.085000
2007-06-13,0.285000
2016-02-10,0.067000
2018-05-14,0.065000
2021-06-14,0.053000
2021-11-12,0.053000
2022-02-14,0.053000
2026-01-15,0.063000
2003-12-11,0.101000
2010-12-13,0.170000
2019-03-14,0.061000
2021-03-12,0.053000
2017-10-12,0.065000
2015-05-13,0.066000
2016-04-13,0.067000
2019-08-14,0.061000
2023-02-14,0.047000
2003-07-11,0.101000
2005-02-11,0.101000
2008-03-12,0.285000
2012-04-11,0.063000
2024-10-15,0.067000
2025-08-15,0.067000
2026-02-13,0.063000
2014-03-12,0.063000
2004-12-13,0.101000
2013-01-11,0.063000
2020-10-14,0.053000
2014-07-11,0.063000
2021-05-13,0.053000
2025-07-15,0.067000
2006-12-13,0.095000
2009-06-11,0.145000
2013-02-13,0.063000
2014-06-11,0.063000
2005-08-11,0.090000
2006-08-11,0.095000
2014-10-10,0.063000
2022-11-14,0.053000
2006-05-11,0.095000
2006-10-11,0.095000
2019-10-11,0.061000
2020-03-12,0.061000
2013-09-11,0.063000
2022-01-13,0.053000
2022-09-14,0.053000
2026-08-14,0.063000
2012-08-13,0.063000
2019-05-14,0.061000
2013-06-12,0.063000
2015-12-11,0.067000
2004-11-10,0.101000
2004-12-27,0.101000
2026-04-15,0.063000
2016-01-13,0.067000
2024-02-14,0.048000
2026-06-15,0.063000
2005-04-13,0.096000
2006-09-13,0.095000
2012-09-12,0.063000
2014-09-11,0.063000
2020-11-12,0.053000
2023-05-12,0.044000
2017-12-14,0.065000
2021-01-14,0.053000
2025-12-15,0.063000
2005-05-11,0.096000
2011-06-13,0.190000
2014-01-13,0.063000
2014-08-13,0.063000
2009-12-11,0.170000
2013-07-11,0.063000
2023-06-14,0.044000
2024-11-15,0.067000
2007-01-10,0.095000
2012-05-11,0.063000
2023-03-14,0.047000
2019-04-12,0.061000
2020-04-14,0.053000
2021-12-14,0.053000
2006-06-13,0.095000
2008-06-11,0.285000
2011-09-13,0.190000
2017-01-11,0.064000
2017-06-21,0.065000
2017-07-12,0.065000
2020-02-13,0.061000
2016-07-13,0.067000
2017-11-14,0.065000
2019-12-12,0.061000
2022-03-14,0.053000
2006-07-12,0.095000
2010-09-13,0.170000
2012-10-11,0.063000
2013-12-11,0.063000
2023-12-14,0.048000
2025-10-15,0.067000
2004-04-13,0.101000
2015-10-13,0.067000
2017-08-11,0.065000
2018-04-12,0.065000
2021-02-11,0.053000
2005-03-11,0.096000
2015-06-11,0.067000
2017-05-11,0.064000
2019-01-14,0.061000
2004-08-11,0.101000
2021-07-14,0.053000
2004-02-11,0.101000
2018-09-13,0.061000
2004-06-14,0.101000
2013-11-13,0.063000
2023-08-14,0.044000
2024-01-11,0.048000
2025-01-15,0.067000
2005-07-13,0.090000
2008-09-11,0.242000
2013-05-13,0.063000
2023-07-13,0.044000
2004-03-11,0.101000
2024-03-14,0.048000
2025-05-15,0.067000
2009-03-11,0.155000
2011-12-13,0.190000
2014-05-13,0.063000
2024-12-13,0.067000