f/overrides/event-backup/ipac-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

515 B

1DateDividends
22019-06-170.821000
32019-12-161.150000
42020-12-140.501000
52023-06-070.778000
62023-12-201.105000
72024-06-110.803000
82025-12-162.317000
92026-06-150.881000
102018-12-180.775000
112016-12-210.802000
122017-12-191.140000
132021-12-300.208000
142022-12-130.526000
152025-06-160.847000
162015-06-250.610000
172015-12-210.629000
182016-06-220.496000
192017-06-200.639000
202018-06-190.719000
212020-06-150.582000
222021-06-100.808000
232021-12-131.555000
242014-12-170.452000
252024-12-171.290000
262022-06-090.953000