f/overrides/event-backup/gtlox-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
2006-12-15,0.032000
2013-07-03,0.035000
2020-10-07,0.070000
2023-07-05,0.054000
2024-04-03,0.051000
2005-10-05,0.021000
2006-04-05,0.033000
2020-07-01,0.069000
2015-04-09,0.053000
2015-07-01,0.049000
2019-04-03,0.070000
2019-12-13,1.242000
2022-04-06,0.053000
2022-07-06,0.069000
2023-12-15,1.706000
2017-04-05,0.051000
2018-04-04,0.054000
2008-04-02,0.023000
2009-07-01,0.023000
2009-12-14,0.022000
2013-12-12,0.399000
2025-07-02,0.033000
2004-07-07,0.015000
2005-04-06,0.022000
2009-10-07,0.024000
2012-12-13,0.051000
2014-07-02,0.057000
2007-04-04,0.028000
2007-12-17,0.031000
2014-04-02,0.031000
2015-12-11,0.295000
2005-12-16,0.023000
2008-12-15,0.033000
2014-12-11,0.709000
2015-10-07,0.055000
2024-12-16,5.123000
2010-10-06,0.017000
2011-10-05,0.026000
2008-10-01,0.031000
2009-04-01,0.025000
2010-12-13,0.024000
2016-12-14,0.068000
2018-07-05,0.076000
2026-07-01,0.015000
2007-07-05,0.021000
2007-10-03,0.020000
2026-04-01,0.032000
2016-04-06,0.056000
2024-07-03,0.052000
2018-10-03,0.071000
2020-04-01,0.075000
2023-10-04,0.043000
2012-10-03,0.056000
2013-10-02,0.038000
2017-10-04,0.055000
2018-12-14,2.284000
2019-10-02,0.088000
2025-10-01,0.031000
2012-04-04,0.036000
2014-10-01,0.045000
2013-04-03,0.035000
2016-07-06,0.064000
2017-07-05,0.060000
2020-12-15,2.235000
2023-04-05,0.060000
2011-04-06,0.019000
2011-07-06,0.028000
2025-04-02,0.026000
2016-10-05,0.069000
2021-10-06,0.055000
2022-12-15,4.708000
2005-07-06,0.025000
2006-07-05,0.027000
2008-07-02,0.022000
2017-12-13,1.240000
2021-04-07,0.050000
2021-07-07,0.054000
2024-10-02,0.053000
2004-12-17,0.022000
2006-10-04,0.031000
2019-07-03,0.075000
2021-12-14,3.868000
2022-10-05,0.074000
2025-12-15,3.431000
2011-12-12,0.040000
2012-07-11,0.038000