f/overrides/event-backup/ediax-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

248 lines
4.8 KiB
Plaintext

Date,Dividends
2007-08-21,0.063000
2009-08-19,0.044000
2016-03-22,0.027000
2020-09-21,0.027000
2021-01-20,0.027000
2023-05-19,0.027000
2017-11-21,0.027000
2020-03-19,0.027000
2023-10-19,0.027000
2024-09-19,0.049000
2006-12-29,0.060000
2012-02-22,0.039000
2012-09-19,0.027000
2014-03-19,0.027000
2009-12-31,0.039000
2012-08-21,0.027000
2024-03-19,0.047000
2006-09-19,0.056000
2017-09-19,0.027000
2018-11-20,0.027000
2021-02-19,0.027000
2021-06-21,0.027000
2026-06-22,0.055000
2013-04-19,0.027000
2014-02-19,0.027000
2021-09-21,0.027000
2008-05-20,0.063000
2007-03-20,0.063000
2007-07-19,0.063000
2008-11-19,0.063000
2012-06-19,0.027000
2008-06-19,0.063000
2018-02-21,0.027000
2015-10-20,0.027000
2023-06-22,0.027000
2011-05-19,0.039000
2012-07-19,0.027000
2019-09-19,0.027000
2023-11-21,0.027000
2009-02-19,0.044000
2009-03-19,0.044000
2013-10-21,0.027000
2015-11-19,0.027000
2020-05-19,0.027000
2026-07-21,0.054000
2018-06-19,0.027000
2026-01-21,0.053000
2008-01-22,0.063000
2010-02-19,0.039000
2010-10-19,0.004000
2012-12-19,0.027000
2026-05-19,0.054000
2011-12-30,0.039000
2019-11-19,0.027000
2021-05-19,0.027000
2024-04-19,0.046000
2026-04-21,0.053000
2010-09-21,0.039000
2011-08-19,0.039000
2018-04-19,0.027000
2020-07-21,0.027000
2016-06-21,0.027000
2012-12-31,0.027000
2015-05-19,0.027000
2025-07-21,0.050000
2022-11-21,0.027000
2024-02-21,0.040000
2007-05-21,0.063000
2007-12-19,0.063000
2009-04-21,0.044000
2013-06-19,0.027000
2020-12-21,0.027000
2023-03-21,0.027000
2014-12-19,0.027000
2022-02-22,0.027000
2006-11-21,0.060000
2011-06-21,0.039000
2013-07-19,0.027000
2006-06-20,0.051000
2016-04-19,0.027000
2006-12-19,0.097000
2022-04-19,0.027000
2024-10-21,0.049000
2008-09-19,0.063000
2013-09-19,0.027000
2015-06-19,0.027000
2016-03-21,0.027000
2018-01-19,0.027000
2021-08-19,0.027000
2012-11-20,0.027000
2021-03-19,0.027000
2022-06-22,0.027000
2025-06-20,0.048000
2019-04-22,0.027000
2019-12-19,0.027000
2022-01-19,0.027000
2007-02-21,0.060000
2010-07-20,0.039000
2021-11-19,0.027000
2025-08-19,0.050000
2022-03-21,0.027000
2022-08-19,0.027000
2006-05-19,0.051000
2007-04-19,0.063000
2009-05-19,0.044000
2010-11-19,0.039000
2018-03-20,0.027000
2018-05-21,0.027000
2006-02-22,0.051000
2013-05-21,0.027000
2015-04-21,0.027000
2017-03-21,0.027000
2018-09-19,0.027000
2008-12-17,0.063000
2014-12-31,0.048000
2022-05-19,0.027000
2025-02-19,0.047000
2007-11-20,0.063000
2008-03-19,0.063000
2017-07-19,0.027000
2019-07-19,0.027000
2023-02-22,0.027000
2012-03-20,0.039000
2013-08-20,0.027000
2018-08-21,0.027000
2018-10-19,0.027000
2019-08-20,0.027000
2020-06-19,0.027000
2010-03-19,0.039000
2011-02-22,0.039000
2012-05-21,0.027000
2013-11-19,0.027000
2021-10-19,0.027000
2015-02-19,0.027000
2009-07-21,0.044000
2010-05-19,0.039000
2011-07-19,0.039000
2012-10-19,0.027000
2017-02-22,0.027000
2025-09-19,0.051000
2007-09-19,0.063000
2024-12-19,0.327000
2025-10-21,0.051000
2006-03-21,0.051000
2016-08-19,0.027000
2016-11-21,0.027000
2016-12-15,0.027000
2024-05-21,0.048000
2011-03-21,0.039000
2013-12-19,0.027000
2024-06-20,0.048000
2026-03-19,0.051000
2014-08-19,0.027000
2015-07-21,0.027000
2016-02-19,0.027000
2019-01-22,0.027000
2008-04-21,0.063000
2011-09-20,0.039000
2022-09-20,0.027000
2025-04-22,0.045000
2025-12-18,0.051000
2017-01-19,0.027000
2018-07-19,0.027000
2023-12-19,0.027000
2011-12-20,0.039000
2020-02-19,0.027000
2021-07-20,0.027000
2023-04-19,0.027000
2024-08-20,0.049000
2022-07-19,0.027000
2023-09-19,0.027000
2008-10-21,0.063000
2008-12-31,0.063000
2010-06-21,0.039000
2014-05-20,0.027000
2014-07-21,0.027000
2016-10-19,0.027000
2025-01-22,0.047000
2021-12-21,0.165000
2026-02-19,0.054000
2006-04-19,0.051000
2007-06-19,0.063000
2010-08-19,0.039000
2011-11-21,0.039000
2017-12-19,0.027000
2020-04-21,0.027000
2006-08-21,0.056000
2014-11-19,0.027000
2016-07-19,0.027000
2009-11-19,0.044000
2017-04-19,0.027000
2018-12-18,0.027000
2012-04-19,0.039000
2025-03-19,0.047000
2023-01-19,0.027000
2008-08-19,0.063000
2009-10-20,0.044000
2014-04-22,0.027000
2016-09-20,0.027000
2017-06-20,0.027000
2019-02-20,0.027000
2009-12-21,0.044000
2011-04-19,0.039000
2015-12-31,0.027000
2019-03-19,0.027000
2008-07-21,0.063000
2013-03-19,0.027000
2014-09-19,0.027000
2019-06-19,0.027000
2023-07-19,0.027000
2025-05-20,0.048000
2010-12-21,0.039000
2017-10-19,0.027000
2019-05-21,0.027000
2009-09-21,0.044000
2015-09-21,0.027000
2015-12-17,0.027000
2022-12-20,0.027000
2023-08-21,0.027000
2010-12-31,0.039000
2013-12-31,0.047000
2020-08-19,0.027000
2022-10-19,0.027000
2024-11-19,0.048000
2019-10-21,0.027000
2020-11-19,0.027000
2006-07-19,0.051000
2011-10-19,0.039000
2014-10-21,0.027000
2015-03-19,0.027000
2015-08-19,0.027000
2017-05-19,0.027000
2021-04-20,0.027000
2006-10-19,0.060000
2014-06-19,0.027000
2007-10-19,0.063000
2013-02-20,0.027000
2017-08-21,0.027000
2023-12-29,0.027000
2024-07-19,0.049000
2025-11-19,0.051000
2009-06-19,0.044000
2020-01-22,0.027000
2008-02-20,0.063000
2016-05-19,0.027000
2020-10-20,0.027000