f/overrides/event-backup/bmbix-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

283 lines
5.5 KiB
Plaintext

Date,Dividends
2023-10-24,0.026000
2014-06-25,0.026000
2019-02-25,0.022000
2024-12-27,0.025000
2011-11-28,0.028000
2017-11-27,0.022000
2010-08-25,0.023000
2011-04-25,0.024000
2017-01-25,0.018000
2020-10-26,0.018000
2003-09-25,0.039000
2020-12-28,0.018000
2022-07-25,0.017000
2005-04-25,0.034000
2008-04-25,0.030000
2009-08-25,0.026000
2011-06-27,0.027000
2017-05-25,0.022000
2021-11-24,0.016000
2004-05-25,0.034000
2010-11-26,0.028000
2016-11-25,0.020000
2018-07-25,0.024000
2018-09-25,0.023000
2020-06-26,0.020000
2009-04-27,0.027000
2023-06-26,0.022000
2015-01-28,0.019000
2009-06-25,0.028000
2015-03-25,0.023000
2018-04-25,0.023000
2024-02-26,0.027000
2025-12-29,0.031000
2005-03-28,0.023000
2006-06-26,0.032000
2013-08-26,0.026000
2013-12-26,0.035000
2015-05-26,0.022000
2015-11-25,0.024000
2004-01-26,0.026000
2008-11-25,0.032000
2010-01-25,0.019000
2010-07-26,0.028000
2013-01-25,0.017000
2019-03-25,0.021000
2019-09-25,0.023000
2006-05-25,0.031000
2015-01-26,0.019000
2015-12-28,0.027000
2022-04-25,0.017000
2024-10-25,0.028000
2005-10-25,0.033000
2006-09-25,0.032000
2004-02-25,0.035000
2011-10-25,0.028000
2014-02-25,0.026000
2011-03-25,0.025000
2017-07-25,0.023000
2017-10-25,0.021000
2018-08-27,0.023000
2022-06-23,0.017000
2022-09-23,0.019000
2003-11-25,0.036000
2006-11-27,0.036000
2008-07-25,0.032000
2014-09-25,0.027000
2015-04-27,0.024000
2003-08-25,0.034000
2007-05-25,0.033000
2007-08-27,0.031000
2008-02-25,0.031000
2010-09-27,0.026000
2024-11-27,0.029000
2005-01-25,0.033000
2011-09-26,0.027000
2013-05-28,0.025000
2009-05-26,0.024000
2013-10-25,0.026000
2014-01-27,0.021000
2024-08-26,0.026000
2012-04-25,0.027000
2011-07-25,0.025000
2019-10-25,0.021000
2019-12-26,0.028000
2022-01-25,0.013000
2005-08-25,0.034000
2007-04-25,0.038000
2009-10-26,0.025000
2013-02-25,0.021000
2020-09-25,0.020000
2024-01-26,0.021000
2003-03-25,0.033000
2006-03-27,0.029000
2022-05-24,0.018000
2005-02-25,0.029000
2012-06-25,0.024000
2022-02-24,0.019000
2022-12-28,0.024000
2023-04-25,0.022000
2025-03-27,0.029000
2004-07-26,0.032000
2016-10-25,0.020000
2025-07-28,0.030000
2014-08-25,0.024000
2012-03-26,0.024000
2013-07-25,0.026000
2013-11-25,0.025000
2016-07-25,0.017000
2019-06-25,0.023000
2021-09-24,0.016000
2024-09-24,0.027000
2010-03-25,0.024000
2009-01-26,0.019000
2010-05-25,0.029000
2023-01-25,0.017000
2023-07-25,0.024000
2025-02-26,0.032000
2008-09-25,0.034000
2021-05-25,0.018000
2021-08-25,0.016000
2022-08-23,0.018000
2008-01-25,0.027000
2007-11-26,0.027000
2009-03-25,0.023000
2013-09-25,0.028000
2024-04-25,0.025000
2006-02-27,0.030000
2011-12-27,0.037000
2018-12-26,0.028000
2005-11-25,0.031000
2018-02-26,0.021000
2023-03-27,0.024000
2023-12-28,0.028000
2026-03-27,0.032000
2011-01-25,0.021000
2009-07-27,0.024000
2012-11-26,0.022000
2017-04-25,0.023000
2004-10-25,0.031000
2024-07-25,0.026000
2012-08-27,0.026000
2009-12-28,0.031000
2023-09-25,0.023000
2024-06-25,0.026000
2004-04-26,0.034000
2011-08-25,0.029000
2013-04-25,0.033000
2016-06-27,0.023000
2016-08-25,0.021000
2022-03-25,0.016000
2009-11-25,0.027000
2012-01-25,0.021000
2014-04-25,0.026000
2020-11-24,0.020000
2006-07-25,0.032000
2012-12-26,0.028000
2014-11-25,0.025000
2017-02-27,0.023000
2018-05-25,0.022000
2021-02-25,0.024000
2021-04-26,0.018000
2021-07-27,0.018000
2008-10-27,0.032000
2026-04-27,0.027000
2022-11-23,0.019000
2012-09-25,0.026000
2013-03-25,0.029000
2026-02-25,0.029000
2026-05-27,0.031000
2008-03-25,0.029000
2023-05-25,0.023000
2012-02-27,0.026000
2007-09-25,0.030000
2007-10-25,0.031000
2010-06-25,0.028000
2013-06-25,0.027000
2004-08-25,0.035000
2023-08-24,0.022000
2020-02-25,0.022000
2008-06-25,0.034000
2008-08-25,0.034000
2020-05-27,0.022000
2005-07-25,0.032000
2017-09-25,0.021000
2020-03-26,0.022000
2021-03-25,0.017000
2021-06-25,0.018000
2023-11-27,0.026000
2007-02-26,0.033000
2015-02-25,0.026000
2004-06-25,0.034000
2015-09-25,0.024000
2019-07-25,0.021000
2025-01-28,0.025000
2006-08-25,0.033000
2011-05-25,0.028000
2012-05-25,0.025000
2006-01-25,0.031000
2016-09-26,0.020000
2017-03-27,0.021000
2019-05-28,0.023000
2025-10-27,0.028000
2010-12-27,0.033000
2007-03-26,0.031000
2011-02-25,0.028000
2020-04-27,0.020000
2004-11-26,0.034000
2008-05-27,0.028000
2010-10-25,0.023000
2018-03-26,0.025000
2025-09-25,0.027000
2006-04-25,0.033000
2012-07-25,0.027000
2014-07-25,0.025000
2022-10-25,0.021000
2025-11-25,0.028000
2004-09-27,0.034000
2009-09-25,0.026000
2017-08-25,0.023000
2021-01-26,0.016000
2009-02-25,0.025000
2015-10-26,0.022000
2024-03-26,0.028000
2024-05-28,0.026000
2007-01-25,0.027000
2015-07-27,0.024000
2018-10-25,0.023000
2018-11-26,0.023000
2020-07-27,0.019000
2020-08-25,0.020000
2007-06-25,0.032000
2004-12-23,0.029000
2014-03-25,0.024000
2014-12-26,0.030000
2003-12-26,0.045000
2008-12-26,0.034000
2015-06-25,0.026000
2018-06-25,0.021000
2019-04-25,0.025000
2020-01-27,0.017000
2021-12-28,0.019000
2003-10-27,0.035000
2015-08-25,0.023000
2016-04-25,0.022000
2003-06-25,0.038000
2019-01-25,0.018000
2025-05-27,0.027000
2016-03-28,0.022000
2026-01-28,0.026000
2005-05-25,0.038000
2005-06-27,0.036000
2016-12-27,0.026000
2003-04-25,0.037000
2005-09-26,0.031000
2012-10-25,0.022000
2016-01-25,0.021000
2016-02-25,0.025000
2018-01-25,0.017000
2021-10-26,0.017000
2025-04-25,0.026000
2004-03-25,0.028000
2026-06-26,0.028000
2025-06-24,0.028000
2007-12-26,0.020000
2016-05-25,0.024000
2017-06-26,0.022000
2019-08-26,0.022000
2023-02-24,0.023000
2026-07-28,0.031000
2007-07-25,0.036000
2006-12-26,0.039000
2019-11-25,0.020000
2025-08-26,0.028000
2006-10-25,0.034000
2003-07-25,0.036000
2005-12-27,0.036000
2010-02-25,0.029000
2014-05-27,0.024000
2014-10-27,0.024000
2017-12-26,0.026000
2003-05-27,0.034000