f/overrides/event-backup/lavlx-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

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Date,Dividends
1993-01-22,1.530000
2007-12-21,3.568000
2025-07-29,1.325000
1987-12-31,0.990000
1995-01-20,1.615000
2001-01-24,0.875000
2010-12-17,0.056000
2014-12-22,0.122000
2025-12-18,1.051000
1986-03-14,1.090000
2004-12-21,0.730000
2007-01-31,0.428000
2008-02-05,0.821000
2012-12-18,0.116000
2019-12-18,0.911000
1989-12-29,0.480000
1987-03-13,2.570000
2016-07-29,0.002000
1989-01-13,0.320000
2019-07-31,0.002000
2003-12-19,0.281000
1997-01-16,1.500000
2013-07-31,0.001000
1985-03-15,0.230000
2010-04-01,0.033000
2011-12-16,0.020000
2016-12-16,0.170000
2022-12-20,1.952000
2000-12-21,1.268000
2005-02-01,0.504000
2008-12-23,0.263000
2020-12-18,0.347000
2023-07-27,0.105000
1997-12-24,2.110000
2013-12-18,0.086000
2002-01-24,0.342000
2003-01-24,0.085000
2022-07-28,0.411000
2000-01-21,1.261000
2021-12-17,2.925000
1992-01-10,0.720000
1991-01-11,0.520000
1994-01-21,1.035000
1996-01-18,1.210000
2004-08-31,0.009000
2006-01-31,0.729000
2006-12-21,1.979000
1990-01-12,0.300000
2015-07-31,0.004000
2015-12-18,0.191000
2017-07-28,0.009000
2017-12-15,0.790000
2026-07-28,0.591000
1999-01-21,0.590000
2018-07-31,0.003000
2018-12-18,1.571000
2024-12-17,3.275000
1988-12-30,0.980000
2005-12-20,1.508000
2009-12-18,0.071000
2023-12-19,0.292000
1984-03-16,0.220000