f/overrides/event-backup/enzl-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

655 B

1DateDividends
22014-12-171.100000
32016-12-211.359000
42018-06-190.822000
52019-12-161.177000
62023-06-070.473000
72011-06-220.402000
82013-06-270.713000
92021-12-130.888000
102025-06-160.435000
112011-12-201.415000
122012-06-210.622000
132014-06-250.959000
142015-12-210.693000
152020-12-140.763000
162022-06-090.546000
172022-12-130.242000
182023-12-200.981000
192010-12-210.639000
202013-12-180.761000
212024-06-110.349000
222024-12-170.615000
232019-06-170.760000
242012-12-180.946000
252015-06-250.914000
262021-06-100.562000
272017-12-190.903000
282020-06-150.370000
292018-12-180.833000
302016-06-220.542000
312017-06-200.851000
322025-12-160.575000
332026-06-150.437000