f/overrides/event-backup/ewj-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

52 lines
1015 B
Plaintext

Date,Dividends
2021-12-13,0.888000
2023-12-20,0.875000
2008-06-25,0.240000
2008-12-23,0.300000
2012-12-18,0.404000
2014-06-25,0.328000
2016-12-21,0.583000
2018-12-18,0.405000
2024-06-11,0.509000
2025-12-16,3.061000
1999-12-21,0.440000
2013-06-27,0.188000
2016-06-22,0.368000
2022-06-09,0.546000
2024-12-17,1.064000
1997-12-23,0.004000
2011-06-22,0.352000
2013-12-18,0.352000
2017-06-20,0.348000
2019-12-16,0.716000
2021-06-10,0.505000
2005-12-23,0.232000
2009-12-22,0.352000
2011-12-20,0.424000
2014-12-17,0.264000
2019-06-17,0.487000
2020-12-14,0.258000
2025-06-16,0.591000
2000-08-24,1.804000
2004-12-23,0.172000
2006-12-20,0.396000
2010-12-21,0.292000
2015-06-25,0.264000
2023-06-07,0.431000
1998-12-22,0.040000
2007-12-24,0.552000
2015-12-21,0.352000
2026-06-15,0.501000
1998-08-25,0.044000
2000-12-20,2.240000
2003-12-22,0.008000
2017-12-19,0.399000
2020-06-15,0.442000
2022-12-13,0.124000
1997-08-25,0.020000
1999-08-25,0.200000
2009-06-23,0.200000
2010-06-23,0.276000
2012-06-21,0.352000
2018-06-19,0.460000