f/overrides/event-backup/dfjsx-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

65 lines
1.2 KiB
Plaintext

Date,Dividends
2011-06-08,0.139000
2011-09-08,0.002000
2014-12-16,0.298000
2017-12-15,0.702000
2018-12-18,1.638000
1995-11-27,0.105000
1997-12-22,0.105000
2010-06-08,0.122000
2004-12-20,0.161000
2008-12-10,0.121000
2009-06-09,0.120000
1990-12-11,1.720000
2001-12-17,0.090000
2025-12-15,0.988000
2010-09-08,0.001000
2010-12-09,0.098000
1999-12-20,0.074000
2002-06-10,0.107000
2006-06-08,0.086000
2023-12-13,1.418000
1987-12-31,4.211000
2009-12-09,0.106000
2019-12-17,0.989000
1987-12-30,0.030000
2012-12-13,0.131000
2013-12-12,0.545000
1998-12-21,0.063000
2008-03-10,0.014000
1987-10-30,0.036000
2008-09-09,0.012000
2009-09-09,0.008000
2016-12-15,0.432000
1995-12-27,0.364000
2007-06-08,0.103000
2009-03-10,0.012000
2007-12-19,0.111000
2024-12-13,0.703000
1992-12-15,0.522000
1994-12-28,0.584000
2005-12-19,0.116000
1996-12-27,1.213000
2005-06-08,0.022000
2020-12-16,0.540000
2021-12-15,1.257000
2022-12-14,1.091000
1988-12-13,1.700000
1993-11-16,0.230000
1994-11-28,0.244000
2000-12-18,0.114000
2002-12-16,0.088000
2010-03-09,0.002000
2011-12-13,0.128000
2012-06-08,0.145000
1991-12-10,0.476000
1993-12-15,0.460000
2006-12-18,0.110000
2007-09-10,0.015000
1989-12-12,1.293000
2003-12-22,0.187000
2006-09-08,0.024000
2008-06-10,0.155000
2012-09-10,0.006000
2015-12-16,0.284000