f/overrides/event-backup/fnda-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

1.1 KiB

1DateDividends
22019-12-120.094500
32024-09-250.107500
42014-09-290.040500
52015-09-280.052500
62021-06-230.058000
72022-03-230.023500
82014-06-300.038500
92020-12-300.025500
102019-06-260.070500
112022-09-210.086500
122024-03-200.078000
132026-03-250.060000
142016-12-190.058500
152017-09-180.055000
162023-12-060.127000
172026-06-240.097000
182015-06-290.043500
192018-12-120.105500
202017-06-260.045500
212018-03-160.035000
222019-09-250.075500
232022-06-220.081500
242025-03-260.051000
252013-10-010.010500
262016-06-270.051500
272025-06-250.074000
282013-12-230.035000
292020-12-100.081500
302024-12-110.164000
312014-12-220.047500
322017-12-270.003000
332020-09-230.070000
342020-06-240.062000
352017-12-180.087500
362017-04-030.055500
372021-09-220.074500
382022-12-070.130500
392023-09-200.090000
402014-03-310.032000
412015-03-300.039000
422024-06-260.105500
432016-10-030.057500
442021-12-080.170500
452021-03-240.018000
462025-12-100.152000
472015-12-210.051500
482018-09-250.074500
492020-03-250.041500
502023-06-210.092500
512018-12-280.005000
522018-06-260.054000
532025-09-240.108000
542023-03-220.070000
552019-03-200.037500