f/overrides/event-backup/ihiax-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

342 lines
6.7 KiB
Plaintext

Date,Dividends
2013-02-19,0.034000
2015-09-21,0.036000
1998-01-30,0.084000
1999-12-31,0.065000
2000-02-29,0.060000
2001-06-19,0.069000
2004-09-20,0.054000
2008-08-19,0.024000
2018-03-19,0.019000
2022-09-19,0.021000
2024-08-13,0.009000
2020-11-19,0.010000
2022-01-19,0.025000
2003-09-19,0.054000
2014-11-19,0.074000
2015-07-20,0.009000
2016-09-19,0.023000
2016-11-21,0.040000
2017-04-19,0.020000
2010-06-21,0.045000
2012-08-20,0.036000
1998-07-31,0.078000
2004-11-19,0.054000
2005-02-22,0.051000
2007-10-19,0.044000
2008-03-19,0.036000
2010-02-19,0.049000
2017-12-28,0.098000
2018-06-19,0.015000
2024-10-14,0.009000
2005-04-19,0.050000
2009-12-24,0.065000
2011-02-22,0.043000
2015-03-19,0.014000
2017-06-19,0.017000
2020-02-19,0.020000
2001-01-19,0.065000
2001-02-15,0.065000
2012-11-19,0.035000
1999-08-31,0.065000
2000-08-21,0.065000
2007-07-19,0.044000
2011-07-19,0.044000
2024-02-13,0.009000
1997-08-29,0.084000
2002-04-19,0.063000
2013-12-30,0.095000
1998-08-31,0.078000
2007-05-21,0.045000
2018-04-19,0.015000
1997-11-28,0.084000
2003-06-19,0.054000
2006-02-21,0.045000
2009-01-20,0.046000
2010-07-19,0.046000
2020-05-19,0.013000
2005-12-27,0.275000
2006-01-19,0.045000
2024-11-13,0.035000
2002-01-22,0.063000
2020-07-20,0.011000
2026-03-13,0.038000
2002-12-19,0.063000
2003-12-19,0.144000
2012-05-21,0.041000
2012-07-19,0.041000
2016-03-22,0.011000
2026-05-13,0.043000
2005-09-19,0.050000
2014-05-19,0.047000
2015-02-19,0.011000
2023-05-15,0.013000
2026-07-13,0.051000
2015-04-20,0.013000
2019-03-19,0.010000
2019-11-19,0.010000
1997-10-31,0.084000
2009-06-19,0.024000
2009-07-20,0.032000
2015-06-19,0.014000
2022-03-21,0.019000
1998-12-31,0.078000
2000-05-18,0.065000
2006-07-19,0.042000
2006-09-19,0.045000
2007-09-19,0.044000
2023-11-13,0.035000
1997-12-31,0.084000
2000-03-31,0.065000
2005-03-21,0.050000
2015-12-30,0.099000
2019-08-19,0.020000
2021-12-30,0.055000
2015-01-20,0.006000
2018-02-20,0.019000
2002-03-19,0.063000
2006-05-19,0.042000
2008-07-21,0.030000
2010-05-19,0.043000
2011-08-19,0.042000
2011-11-21,0.041000
2019-02-19,0.009000
2019-12-30,0.057000
2022-06-21,0.026000
1996-12-31,0.090000
1998-11-30,0.078000
1999-06-30,0.065000
2022-05-19,0.023000
2005-08-19,0.050000
2024-05-13,0.009000
2021-09-20,0.010000
2023-02-13,0.014000
1999-09-30,0.065000
2006-06-19,0.042000
2011-12-27,0.051000
2013-09-19,0.037000
2014-01-21,0.037000
2017-02-21,0.012000
2024-03-13,0.009000
2006-10-19,0.045000
2011-03-21,0.040000
2016-10-19,0.018000
1999-11-30,0.065000
2000-06-20,0.065000
2006-03-20,0.042000
2016-03-21,0.011000
2018-01-19,0.014000
2011-05-19,0.041000
2012-09-19,0.033000
1997-07-31,0.084000
1998-03-31,0.082000
1998-06-30,0.078000
2001-12-18,0.070000
2003-01-21,0.057000
2010-11-19,0.043000
2014-12-30,0.411000
2015-08-19,0.013000
2018-05-21,0.016000
2021-04-19,0.007000
2004-12-20,0.054000
2009-03-19,0.030000
2020-12-30,0.171000
2021-06-21,0.007000
2024-04-15,0.009000
2000-04-17,0.065000
2001-10-19,0.070000
2016-08-19,0.031000
2019-01-22,0.009000
2019-04-22,0.009000
2005-06-20,0.050000
2007-11-19,0.038000
2010-09-20,0.045000
2011-09-19,0.040000
2017-07-19,0.019000
2017-10-19,0.030000
2013-11-19,0.042000
1999-01-29,0.078000
2003-05-19,0.054000
2003-08-19,0.054000
2007-02-20,0.045000
2008-09-19,0.025000
2013-06-19,0.032000
2002-08-19,0.063000
2003-07-21,0.054000
2006-11-20,0.045000
2008-12-24,0.051000
2021-03-19,0.007000
2023-04-13,0.007000
2001-11-19,0.070000
2014-06-19,0.046000
2018-08-20,0.013000
2019-05-20,0.007000
2021-07-19,0.008000
2003-11-19,0.054000
2008-05-19,0.034000
2008-11-19,0.047000
2016-06-20,0.023000
2017-03-20,0.019000
2023-03-13,0.014000
1998-02-27,0.084000
2000-01-31,0.060000
2007-03-19,0.045000
2010-08-19,0.044000
2013-04-19,0.037000
2020-06-19,0.013000
1997-01-31,0.090000
2005-07-19,0.050000
2007-12-24,0.461000
2009-08-19,0.048000
2013-01-22,0.034000
2021-02-19,0.009000
1997-06-30,0.085000
2013-05-20,0.035000
2016-12-29,0.021000
2022-10-19,0.015000
2026-02-13,0.042000
2001-07-19,0.070000
2007-08-20,0.043000
2020-10-19,0.009000
2023-01-13,0.018000
1999-04-30,0.075000
2001-09-18,0.070000
2005-10-19,0.050000
2013-07-19,0.033000
2020-03-19,0.015000
2023-07-13,0.003000
2000-12-15,0.065000
2004-10-19,0.054000
2014-02-19,0.046000
2016-04-19,0.011000
1998-05-29,0.080000
2008-01-22,0.044000
2010-03-19,0.044000
1996-11-29,0.090000
2009-04-20,0.031000
2015-05-19,0.007000
2022-12-29,0.103000
2024-12-30,0.080000
2003-10-20,0.054000
2007-01-19,0.045000
2010-10-19,0.042000
2011-06-20,0.039000
2017-01-19,0.020000
2018-07-19,0.015000
2021-08-19,0.007000
2022-04-19,0.017000
1997-02-28,0.085000
2000-10-19,0.065000
2004-06-21,0.054000
2008-06-19,0.034000
2012-04-19,0.036000
2019-07-19,0.008000
2018-11-19,0.038000
2019-06-19,0.009000
1997-03-31,0.085000
1998-10-30,0.078000
2002-02-19,0.063000
2013-10-21,0.090000
2014-07-21,0.049000
2018-09-19,0.012000
2021-10-19,0.011000
2008-02-19,0.041000
2010-12-27,0.100000
2016-07-19,0.022000
2024-09-13,0.009000
2026-04-13,0.039000
1999-10-29,0.065000
2009-11-19,0.052000
2025-02-13,0.025000
2004-07-19,0.054000
2009-10-19,0.050000
2017-05-19,0.017000
2023-06-13,0.027000
2023-08-14,0.005000
2024-01-16,0.009000
1999-03-31,0.078000
1999-07-30,0.065000
2000-07-19,0.065000
2002-05-20,0.063000
2004-01-20,0.054000
2019-10-21,0.006000
1999-05-28,0.066000
2001-05-18,0.069000
2006-08-21,0.042000
2009-05-19,0.028000
1996-10-31,0.087000
2001-03-20,0.068000
2016-05-19,0.021000
2012-10-19,0.035000
2012-12-28,0.056000
2014-08-19,0.026000
2017-11-20,0.034000
2021-05-19,0.007000
2023-09-13,0.005000
2003-03-19,0.057000
2004-08-19,0.054000
2005-11-21,0.045000
2015-10-19,0.043000
2020-01-21,0.014000
2020-09-21,0.006000
1997-09-30,0.084000
2011-10-19,0.040000
2018-12-28,0.120000
1998-09-30,0.078000
2004-03-19,0.054000
2008-04-21,0.037000
2023-10-13,0.005000
2001-04-18,0.069000
2004-04-19,0.054000
2014-04-21,0.042000
2000-11-17,0.065000
2001-08-21,0.070000
2004-02-19,0.054000
2005-01-19,0.051000
2006-12-26,0.536000
2017-08-21,0.022000
2000-09-19,0.065000
2002-11-19,0.063000
2010-01-19,0.048000
2012-01-19,0.037000
2013-08-19,0.034000
2015-11-19,0.044000
2024-06-13,0.009000
2004-05-19,0.054000
2007-06-19,0.044000
2009-09-21,0.050000
2011-01-19,0.041000
2020-08-19,0.011000
2022-11-21,0.037000
2011-04-19,0.040000
2024-07-15,0.009000
2021-01-19,0.001000
2022-02-22,0.021000
2026-06-15,0.047000
1997-04-30,0.084000
2002-09-19,0.063000
2003-02-19,0.057000
2006-04-19,0.042000
2016-01-19,0.025000
2019-09-19,0.008000
2018-10-19,0.020000
2022-07-19,0.024000
2022-08-19,0.031000
2023-12-28,0.086000
2026-01-13,0.033000
1999-02-26,0.078000
2014-03-19,0.036000
2016-02-19,0.010000
2017-09-19,0.019000
2020-04-20,0.016000
1997-05-30,0.085000
2005-05-19,0.050000
2013-03-19,0.037000
2021-11-19,0.034000
1998-04-30,0.080000
2003-04-21,0.057000
2007-04-19,0.045000
2012-02-21,0.035000
2012-03-19,0.031000
2012-06-19,0.048000