f/overrides/event-backup/aaarx-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

575 B

1DateDividends
22013-12-171.001000
32020-12-290.488000
42022-12-280.330000
52007-12-181.183000
62011-12-200.034000
72014-03-180.003000
82016-12-200.186000
92015-12-220.608000
102023-12-210.140000
112007-03-060.056000
122010-04-290.030000
132010-12-210.013000
142013-03-190.034000
152025-12-190.549000
162009-12-150.014000
172010-03-160.004000
182018-12-180.828000
192019-12-171.086000
202008-03-110.032000
212021-12-281.038000
222024-12-200.503000
232006-03-070.037000
242006-12-190.575000
252017-12-190.764000
262018-12-310.060000
272008-12-160.070000
282012-12-180.371000
292014-12-160.910000