f/overrides/event-backup/ewn-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

57 lines
1.1 KiB
Plaintext

Date,Dividends
1997-12-23,0.134000
2009-12-22,0.115000
2012-06-21,0.393000
2024-12-17,0.397000
2025-12-16,2.161000
2000-12-20,0.230000
2004-12-23,0.261000
2009-06-23,0.309000
2013-12-18,0.083000
2025-06-16,0.709000
2007-12-20,1.030000
2012-12-18,0.036000
2021-06-10,0.329000
2001-08-24,0.284000
2003-12-22,0.370000
2006-12-20,0.455000
2013-06-27,0.305000
2016-12-21,0.309000
2015-06-25,0.314000
1998-12-22,0.406000
2001-12-24,0.040000
2008-12-23,0.349000
2018-06-19,0.501000
1997-08-25,0.828000
2023-06-07,0.468000
1996-08-26,0.332000
2011-06-22,0.415000
2022-12-13,0.247000
2026-06-15,0.677000
2017-06-20,0.353000
2010-06-23,0.267000
2017-12-19,0.180000
2018-12-18,0.129000
2019-12-16,0.139000
2023-12-20,0.331000
2002-12-23,0.247000
2010-12-21,0.055000
2016-06-22,0.346000
2021-12-13,0.181000
2000-08-24,0.226000
2011-12-20,0.135000
2015-12-21,0.144000
2022-06-09,0.492000
1996-12-23,0.014000
1998-08-25,1.565000
2008-06-25,0.756000
2020-12-14,0.130000
1999-08-25,1.774000
2005-12-23,0.483000
2014-06-25,0.469000
2019-06-17,0.733000
2020-06-15,0.191000
2024-06-11,0.575000
2003-12-16,0.250000
2014-12-17,0.081000