f/overrides/event-backup/fgikx-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
2022-09-09,0.831000
2022-12-22,0.216000
2019-09-06,0.297000
2019-12-20,0.380000
2022-07-01,0.254000
2024-04-05,0.207000
2024-07-05,0.231000
2011-10-07,0.089000
2016-10-07,0.178000
2018-12-07,0.583000
2025-04-04,0.176000
2013-10-04,0.127000
2024-10-04,0.249000
2008-07-11,0.103000
2009-12-11,0.038000
2012-07-06,0.117000
2024-09-13,2.195000
2008-12-12,0.050000
2020-10-02,0.204000
2021-10-01,0.527000
2020-12-18,0.311000
2025-07-11,0.222000
2025-09-12,4.564000
2009-09-11,0.008000
2011-12-09,0.101000
2019-10-04,0.208000
2015-10-02,0.165000
2016-04-08,0.173000
2018-04-06,0.114000
2021-09-03,1.424000
2025-12-26,1.460000
2012-04-04,0.087000
2013-04-05,0.099000
2014-12-12,0.138000
2019-07-05,0.137000
2023-10-06,0.213000
2014-10-03,0.147000
2018-10-05,0.270000
2023-07-07,0.257000
2024-12-26,1.373000
2010-07-09,0.029000
2013-12-13,0.137000
2017-07-07,0.048000
2020-09-04,0.658000
2021-04-05,0.148000
2021-12-17,0.801000
2012-12-14,0.169000
2018-07-06,0.192000
2020-07-10,0.256000
2018-09-07,0.014000
2008-10-03,0.099000
2011-07-08,0.097000
2017-04-07,0.097000
2014-07-03,0.148000
2019-04-05,0.220000
2022-10-07,0.230000
2025-10-03,0.314000
2008-09-12,0.030000
2009-04-03,0.036000
2013-07-05,0.120000
2015-04-01,0.143000
2015-12-11,0.187000
2016-07-08,0.104000
2017-10-06,0.294000
2020-04-03,0.194000
2009-07-10,0.043000
2009-10-02,0.033000
2010-10-01,0.037000
2023-04-05,0.205000
2026-07-10,0.217000
2021-07-02,0.263000
2023-09-08,0.691000
2023-12-21,0.814000
2026-04-01,0.174000
2011-04-06,0.056000
2012-10-05,0.098000
2016-12-09,0.175000
2015-07-01,0.148000
2017-12-08,0.176000
2022-04-01,0.142000
2010-12-10,0.032000
2012-09-07,0.009000
2014-04-04,0.123000