f/overrides/event-backup/iyg-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

111 lines
2.1 KiB
Plaintext

Date,Dividends
2006-09-26,0.117000
2008-09-24,0.170333
2016-06-21,0.103000
2018-03-22,0.131667
2001-06-08,0.079667
2018-09-26,0.168000
2024-09-25,0.240000
2008-03-25,0.235333
2016-12-21,0.141000
2021-03-25,0.182000
2023-06-07,0.215000
2003-06-13,0.180667
2006-06-22,0.210333
2013-06-26,0.067000
2002-12-13,0.116333
2005-12-22,0.222000
2007-12-27,0.194333
2008-06-25,0.227667
2021-06-10,0.128667
2021-09-24,0.244667
2022-12-13,0.298333
2012-03-26,0.045667
2000-10-18,0.100000
2010-12-22,0.026333
2015-12-24,0.126000
2020-06-15,0.122667
2002-03-08,0.094333
2013-03-25,0.049333
2020-09-23,0.205667
2025-03-18,0.213000
2004-12-23,0.205333
2019-12-16,0.220000
2025-09-16,0.230000
2001-03-09,0.080000
2019-09-24,0.203333
2022-09-26,0.292333
2003-12-12,0.158000
2012-09-25,0.051000
2014-06-24,0.089333
2016-03-23,0.117000
2020-12-14,0.253000
2011-03-25,0.018667
2015-09-25,0.083333
2000-12-20,0.224333
2004-06-25,0.174333
2024-12-17,0.255000
2007-06-28,0.249333
2017-03-24,0.106333
2017-12-19,0.169000
2023-09-26,0.292667
2004-09-24,0.179000
2017-06-27,0.130333
2019-06-17,0.192333
2016-09-26,0.093667
2023-03-23,0.285333
2002-09-13,0.152000
2005-03-24,0.162667
2008-12-23,0.202000
2009-03-25,0.065000
2009-12-23,0.032000
2014-03-25,0.063667
2014-09-24,0.087667
2006-03-24,0.218333
2022-06-09,0.254667
2006-12-20,0.293333
2007-03-23,0.255000
2012-06-19,0.081667
2018-06-26,0.165667
2020-12-30,0.023000
2021-12-13,0.232333
2026-03-17,0.267000
2011-12-22,0.058667
2015-06-24,0.103667
2019-03-20,0.188333
2009-06-24,0.072667
2013-12-23,0.106333
2014-12-24,0.107333
2022-03-24,0.241667
2009-09-22,0.034667
2011-06-24,0.052333
2020-03-25,0.250333
2002-06-14,0.125333
2015-03-25,0.087333
2024-06-11,0.210000
2000-07-19,0.027667
2018-12-17,0.210333
2025-12-16,0.262000
2004-03-26,0.165000
2017-09-26,0.133667
2025-06-16,0.218000
2003-09-12,0.156333
2007-09-25,0.226667
2010-06-24,0.022667
2012-12-19,0.091000
2021-12-30,0.018333
2001-10-01,0.129333
2003-03-07,0.079667
2003-12-16,0.031667
2005-06-20,0.105667
2010-03-25,0.018000
2011-09-23,0.050000
2012-12-27,0.007000
2005-09-23,0.291667
2013-09-24,0.069000
2001-12-14,0.090333
2010-09-23,0.020667
2023-12-20,0.267000
2024-03-21,0.200000
2026-06-15,0.229000