f/overrides/event-backup/ewu-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

58 lines
1.1 KiB
Plaintext

Date,Dividends
2000-12-20,0.034000
2016-06-22,0.796000
2004-12-23,0.690000
2013-06-27,0.524000
2013-12-18,0.474000
2019-12-16,0.599000
2022-12-13,0.470000
1998-08-25,0.998000
2015-12-21,0.632000
2020-12-14,0.332000
2012-12-18,0.506000
2024-12-17,0.726000
2010-12-21,0.344000
2017-06-20,0.740000
2006-12-20,1.626000
2008-06-25,0.948000
2010-06-23,0.502000
2012-06-21,0.776000
2015-06-25,0.694000
2019-06-17,0.810000
1996-08-26,0.510000
2003-12-16,0.560000
2009-06-23,0.468000
2021-06-10,0.566000
2024-06-11,0.683000
2001-12-24,0.440000
2023-12-20,0.747000
2025-12-16,0.829000
1999-08-25,1.952000
2007-12-24,1.688000
1996-12-23,0.150000
1997-12-23,0.030000
2011-06-22,0.606000
2023-06-07,0.622000
2008-12-23,0.672000
2009-12-22,0.370000
2026-06-15,0.666000
2005-12-23,1.158000
2014-06-25,2.038000
2016-12-21,0.422000
1999-12-21,0.792000
2011-12-20,0.462000
2017-12-19,0.661000
2018-06-19,0.826000
1997-08-25,1.148000
1998-12-22,0.180000
2001-08-24,0.514000
2002-12-23,0.566000
2003-12-22,0.950000
2014-12-17,0.700000
2020-06-15,0.395000
2000-08-24,1.854000
2018-12-18,0.637000
2021-12-13,0.876000
2022-06-09,0.580000
2025-06-16,0.811000