f/overrides/event-backup/fbakx-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
2010-07-09,0.086000
2017-12-08,0.446000
2025-04-04,0.131000
2025-10-10,1.086000
2026-04-01,0.119000
2023-10-13,0.388000
2009-07-10,0.106000
2011-12-16,0.103000
2015-01-29,0.084000
2016-07-08,0.091000
2018-04-06,0.083000
2020-10-09,1.088000
2022-10-14,1.610000
2014-04-04,0.110000
2018-07-06,0.105000
2008-10-03,0.144000
2010-12-17,0.085000
2011-07-08,0.108000
2021-10-08,2.467000
2023-07-07,0.124000
2012-04-04,0.084000
2013-04-05,0.083000
2015-04-01,0.102000
2019-12-13,0.620000
2012-12-14,0.101000
2013-07-05,0.084000
2013-12-13,0.367000
2017-04-07,0.096000
2019-10-11,0.234000
2021-04-05,0.073000
2021-07-02,0.055000
2009-12-18,0.103000
2012-10-12,0.093000
2016-12-09,0.218000
2010-12-30,0.010000
2020-12-11,0.397000
2008-12-19,0.092000
2009-04-03,0.090000
2011-04-06,0.066000
2016-04-08,0.090000
2018-12-07,0.345000
2022-04-01,0.065000
2022-12-22,0.110000
2017-10-13,1.255000
2020-04-03,0.118000
2008-07-11,0.109000
2013-10-11,0.966000
2014-10-10,1.519000
2016-10-14,0.297000
2019-04-05,0.097000
2025-07-11,0.152000
2015-07-01,0.084000
2017-07-07,0.097000
2018-10-12,1.757000
2021-12-17,0.363000
2026-07-10,0.151000
2011-10-14,0.097000
2019-07-05,0.109000
2022-07-01,0.083000
2024-04-05,0.124000
2009-10-02,0.117000
2020-07-10,0.086000
2023-12-21,0.297000
2024-07-05,0.143000
2024-10-11,0.997000
2024-12-20,0.432000
2010-10-15,0.115000
2012-07-06,0.092000
2014-07-03,0.092000
2014-12-12,0.529000
2015-10-09,1.327000
2015-12-11,0.141000
2023-04-05,0.091000
2025-12-19,0.470000