f/overrides/event-backup/iyz-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

107 lines
2.1 KiB
Plaintext

Date,Dividends
2010-12-22,0.220000
2024-06-11,0.138000
2009-09-22,0.203000
2014-12-24,0.171000
2015-09-25,0.151000
2020-09-23,0.211000
2001-12-14,0.052000
2011-09-23,0.176000
2016-06-21,0.139000
2022-03-24,0.156000
2007-06-28,0.137000
2007-12-27,0.173000
2016-12-21,0.222000
2019-12-16,0.209000
2018-03-22,0.211000
2002-12-13,0.057000
2009-12-23,0.188000
2012-06-19,0.167000
2014-06-24,0.177000
2015-03-25,0.160000
2018-06-26,0.187000
2020-06-15,0.160000
2021-09-24,0.290000
2013-09-24,0.169000
2019-03-20,0.174000
2020-12-14,0.190000
2023-06-07,0.124000
2026-03-17,0.149000
2005-03-24,0.129000
2008-09-24,0.208000
2014-09-24,0.157000
2024-09-25,0.119000
2002-06-14,0.083000
2001-10-01,0.048000
2002-09-13,0.093000
2011-03-25,0.164000
2006-09-26,0.194000
2011-06-24,0.098000
2001-03-09,0.048000
2006-06-22,0.117000
2023-12-20,0.123000
2025-06-16,0.122000
2006-03-24,0.127000
2009-03-25,0.123000
2023-09-26,0.107000
2024-03-21,0.146000
2003-03-07,0.074000
2010-09-23,0.132000
2012-03-26,0.107000
2016-09-26,0.229000
2023-03-23,0.164000
2025-03-18,0.170000
2002-03-08,0.090000
2004-12-23,0.173000
2017-09-26,0.305000
2000-10-18,0.107000
2017-12-19,0.269000
2000-12-20,0.592000
2006-12-20,0.157000
2009-06-24,0.189000
2021-03-25,0.247000
2022-12-13,0.166000
2026-06-15,0.154000
2001-06-08,0.077000
2007-03-23,0.150000
2010-06-24,0.202000
2005-09-23,0.120000
2008-06-25,0.157000
2020-03-25,0.226000
2000-07-19,0.112000
2021-06-10,0.200000
2010-03-25,0.148000
2011-12-22,0.210000
2012-12-19,0.215000
2013-12-23,0.234000
2016-03-23,0.191000
2017-06-27,0.195000
2019-09-24,0.144000
2003-12-12,0.146000
2012-09-25,0.149000
2004-03-26,0.074000
2025-12-16,0.192000
2005-06-20,0.133000
2005-12-22,0.433000
2008-12-23,0.226000
2017-03-24,0.271000
2015-12-24,0.039000
2003-12-16,0.133000
2008-03-25,0.167000
2013-06-26,0.242000
2014-03-25,0.155000
2015-06-24,0.220000
2022-09-26,0.098000
2025-09-16,0.208000
2003-09-12,0.115000
2004-09-24,0.198000
2004-06-25,0.107000
2007-09-25,0.147000
2024-12-17,0.118000
2003-06-13,0.112000
2013-03-25,0.133000
2018-09-26,0.168000
2021-12-13,0.089000
2019-06-17,0.176000
2022-06-09,0.153000