f/overrides/event-backup/bflax-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

376 lines
7.3 KiB
Plaintext

Date,Dividends
1998-11-05,0.036000
2002-11-07,0.029000
2006-12-21,0.422000
2008-11-06,0.026000
2010-02-26,0.020000
2019-05-31,0.003000
1996-10-11,0.037000
1999-11-05,0.041000
2006-12-08,0.022000
2007-12-21,0.696000
2013-04-30,0.008000
2014-01-31,0.005000
2019-08-30,0.003000
2019-10-31,0.003000
1999-06-07,0.037000
2025-01-31,0.004000
1999-02-05,0.036000
2005-01-07,0.020000
2006-11-08,0.022000
2015-11-24,0.050000
1996-09-06,0.037000
2008-05-07,0.026000
2009-06-05,0.016000
2010-07-30,0.022000
2011-01-28,0.010000
2011-03-31,0.042000
2012-01-31,0.010000
2015-01-30,0.008000
2002-06-06,0.027000
2018-07-31,0.001000
2000-01-04,0.041000
2004-08-06,0.020000
2020-05-29,0.003000
2022-07-29,0.002000
1997-12-05,0.028000
1999-08-05,0.037000
2008-10-07,0.026000
2020-01-31,0.004000
2022-04-29,0.002000
1998-02-05,0.028000
2002-08-08,0.027000
2004-05-07,0.020000
2010-12-22,0.049000
2010-12-31,0.023000
2015-04-30,0.008000
2016-11-30,0.063000
2001-01-03,0.041000
1998-06-04,0.036000
2009-10-06,0.016000
2013-07-31,0.007000
2014-03-28,0.034000
2016-08-31,0.009000
2017-12-29,0.034000
2023-06-30,0.021000
1997-12-11,0.350000
2024-12-19,0.017000
2024-06-28,0.026000
2007-01-05,0.022000
2008-09-05,0.026000
2010-08-31,0.022000
2012-11-30,0.019000
2017-09-29,0.010000
2018-03-29,0.011000
2019-07-31,0.018000
2003-12-11,0.020000
2000-02-04,0.041000
2000-07-06,0.041000
2004-09-08,0.020000
2008-07-08,0.027000
2009-08-06,0.016000
2015-02-27,0.009000
2015-07-31,0.005000
1996-12-06,0.028000
2020-03-31,0.008000
2017-05-31,0.009000
2017-11-30,0.060000
2021-11-30,0.063000
2022-10-28,0.002000
2025-10-31,0.012000
1998-04-06,0.028000
2004-12-08,0.020000
2018-06-29,0.018000
2000-10-06,0.041000
2005-11-09,0.022000
2008-04-08,0.026000
2011-04-29,0.011000
2017-01-31,0.004000
2017-06-30,0.022000
2022-06-30,0.020000
2023-04-28,0.006000
2002-01-04,0.031000
2024-09-27,0.030000
2009-12-30,0.015000
2020-04-30,0.004000
2023-09-29,0.013000
2025-03-28,0.020000
2025-09-30,0.023000
2025-11-25,0.008000
2001-05-09,0.042000
2006-10-06,0.022000
2012-02-29,0.010000
2018-05-31,0.002000
2003-09-11,0.020000
2012-07-31,0.008000
2015-10-30,0.007000
2016-03-31,0.032000
2019-03-29,0.013000
2024-01-31,0.006000
2004-07-08,0.020000
1997-11-05,0.028000
1999-04-05,0.036000
2006-03-09,0.022000
2020-02-28,0.003000
2022-02-24,0.003000
1997-01-07,0.028000
2016-02-26,0.009000
2017-10-31,0.004000
2013-09-27,0.033000
2013-05-31,0.007000
2014-09-30,0.029000
2016-07-29,0.007000
2016-12-21,0.055000
2017-07-28,0.004000
2003-10-09,0.020000
1999-03-05,0.036000
2019-11-27,0.038000
1997-06-06,0.028000
2001-11-07,0.034000
2014-07-31,0.007000
2026-05-29,0.012000
1998-09-04,0.036000
1999-10-06,0.041000
2018-04-27,0.004000
2020-12-30,0.024000
1998-08-06,0.036000
2005-09-08,0.022000
2009-03-06,0.029000
2010-10-29,0.023000
2017-12-20,0.419000
2023-12-28,0.036000
2026-07-31,0.015000
2002-04-05,0.031000
2000-12-15,0.553000
2002-02-07,0.031000
2003-05-08,0.020000
2006-02-08,0.022000
2008-12-05,0.028000
2014-08-29,0.006000
1998-10-06,0.036000
2000-06-05,0.041000
2003-01-09,0.026000
2011-05-27,0.011000
2011-08-31,0.015000
2024-08-30,0.010000
1999-12-13,0.041000
2004-11-05,0.020000
2014-12-31,0.034000
2015-06-30,0.041000
2020-09-30,0.007000
2003-11-07,0.020000
2005-02-08,0.020000
2001-08-08,0.040000
1999-12-23,0.021000
2003-07-09,0.020000
2011-10-28,0.010000
2012-12-20,0.067000
2019-02-28,0.009000
2023-01-31,0.006000
1999-09-07,0.037000
2013-12-20,0.243000
2014-12-23,0.768000
2021-03-31,0.005000
2001-07-11,0.040000
1997-05-08,0.028000
2002-03-07,0.031000
2012-10-31,0.008000
2015-05-29,0.005000
2019-06-18,0.003000
2023-10-31,0.009000
1997-02-05,0.028000
2013-08-30,0.006000
2014-11-26,0.051000
2015-08-28,0.007000
2016-06-30,0.030000
2018-09-28,0.012000
1997-08-06,0.028000
2006-01-06,0.022000
2008-06-05,0.027000
2009-11-06,0.016000
2015-09-30,0.027000
2024-03-28,0.021000
2001-10-10,0.034000
1997-04-08,0.028000
2005-06-08,0.022000
2009-07-07,0.016000
2011-07-29,0.011000
2012-05-31,0.010000
2014-05-30,0.005000
2019-09-27,0.007000
1997-03-07,0.028000
2020-06-30,0.009000
2006-07-07,0.022000
2024-04-30,0.012000
2024-11-27,0.007000
2025-02-28,0.013000
2003-12-19,0.029000
2005-12-20,0.400000
2008-03-06,0.026000
2011-12-30,0.060000
2013-10-31,0.008000
2016-09-30,0.023000
2022-09-30,0.009000
2023-07-28,0.005000
1996-08-09,0.037000
2026-04-30,0.014000
2024-12-30,0.055000
2013-11-27,0.037000
2000-08-07,0.041000
1998-12-04,0.036000
2008-12-23,0.052000
2012-04-27,0.010000
2013-12-31,0.038000
1998-01-05,0.028000
2010-01-29,0.020000
2016-05-27,0.007000
2002-09-06,0.029000
2016-12-30,0.040000
2014-04-30,0.007000
2005-05-10,0.019000
2016-04-29,0.009000
2018-11-30,0.059000
2018-12-27,0.036000
2023-05-31,0.007000
2004-01-09,0.020000
2002-10-10,0.029000
2007-12-07,0.026000
2009-01-06,0.028000
2009-02-05,0.028000
2012-03-30,0.037000
2018-02-28,0.004000
2018-08-31,0.003000
1996-11-13,0.037000
2025-05-30,0.013000
2024-07-31,0.013000
2001-04-05,0.042000
2002-07-11,0.027000
2010-03-31,0.020000
2017-02-28,0.007000
2018-01-31,0.003000
2021-09-30,0.007000
2021-12-30,0.020000
2000-03-06,0.041000
2013-02-28,0.007000
2025-08-29,0.011000
2011-06-30,0.067000
2019-12-20,0.180000
2023-03-31,0.014000
2024-02-29,0.010000
2001-03-06,0.042000
2000-12-06,0.041000
2003-02-06,0.026000
2003-03-07,0.026000
2004-02-06,0.020000
2005-07-08,0.022000
2006-08-08,0.022000
2008-08-06,0.027000
1999-07-06,0.037000
2013-01-31,0.004000
2015-12-31,0.045000
2020-12-22,0.566000
2025-04-30,0.016000
2012-12-28,0.048000
2002-12-06,0.026000
2005-03-09,0.019000
2007-10-09,0.021000
2022-08-31,0.001000
2024-05-31,0.010000
2001-06-06,0.040000
2001-12-06,0.031000
2009-05-07,0.029000
2009-12-23,0.044000
2014-02-28,0.007000
2025-12-31,0.047000
1997-07-07,0.028000
2000-11-07,0.041000
2002-12-20,0.165000
2006-06-08,0.022000
2008-01-08,0.026000
2014-06-27,0.048000
1998-12-10,1.140000
2013-06-28,0.052000
2018-12-20,0.504000
2022-12-22,0.003000
2023-02-28,0.006000
2007-08-07,0.022000
2012-08-31,0.008000
2014-10-31,0.009000
2019-04-30,0.003000
2026-01-30,0.007000
1999-01-07,0.036000
1998-03-05,0.028000
2004-04-08,0.020000
2015-03-31,0.030000
2017-03-31,0.020000
1997-09-05,0.028000
2007-02-06,0.022000
2007-04-10,0.022000
2026-02-27,0.012000
2026-03-31,0.027000
2004-12-21,0.198000
2001-09-06,0.034000
2021-12-22,2.116000
2022-03-31,0.008000
1999-05-06,0.036000
2007-09-07,0.021000
2010-11-30,0.023000
2013-03-28,0.024000
2020-11-25,0.051000
2002-05-09,0.031000
2007-11-07,0.021000
2023-11-30,0.032000
2000-09-06,0.041000
2007-05-08,0.022000
2010-05-28,0.021000
2011-11-30,0.013000
2016-01-29,0.010000
2003-06-06,0.020000
2006-05-09,0.022000
2008-02-06,0.026000
2010-06-30,0.021000
2021-06-30,0.014000
2005-10-07,0.022000
2007-06-08,0.022000
2009-04-07,0.029000
2009-09-04,0.016000
2011-12-21,0.012000
2017-08-31,0.008000
2022-12-29,0.020000
2025-06-27,0.028000
2005-04-08,0.019000
2000-04-04,0.041000
2007-07-10,0.022000
2011-02-24,0.013000
2018-10-31,0.002000
1998-05-05,0.036000
1998-07-06,0.036000
2001-02-06,0.041000
2007-03-09,0.022000
2015-12-22,0.496000
2022-05-27,0.002000
2023-08-31,0.009000
1997-10-06,0.028000
2003-08-07,0.020000
2004-06-08,0.020000
2005-12-08,0.022000
2010-04-30,0.064000
2010-09-30,0.022000
1999-12-10,0.672000
2004-03-09,0.020000
2005-08-09,0.022000
2006-09-07,0.022000
2016-10-28,0.004000
2019-12-27,0.029000
2022-11-30,0.030000
2003-04-09,0.020000
2006-04-07,0.022000
2011-09-30,0.042000
2012-06-29,0.057000
2017-04-28,0.006000
2026-06-30,0.026000
2000-05-05,0.041000
2012-09-28,0.038000
2025-07-31,0.015000
2004-10-07,0.020000