f/overrides/event-backup/gipux-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

1015 B

1DateDividends
22017-12-140.206000
32017-12-280.194000
42019-06-270.037000
52019-09-270.035000
62020-09-290.038000
72022-12-070.139000
82025-12-050.397000
92016-12-290.077000
102017-03-300.033000
112018-09-270.051000
122018-12-280.164000
132020-06-290.034000
142021-12-100.390000
152026-06-290.080000
162018-12-130.201000
172022-12-230.311000
182024-06-270.081000
192024-12-300.277000
202025-09-290.071000
212025-12-300.118000
222015-09-290.036000
232016-06-290.032000
242023-03-300.056000
252025-03-280.118000
262015-12-300.480000
272016-09-290.030000
282017-09-290.048000
292019-03-280.048000
302021-12-300.334000
312023-06-290.071000
322018-03-290.029000
332018-06-280.043000
342019-12-300.173000
352020-12-300.174000
362024-09-270.071000
372017-06-300.040000
382017-09-280.048000
392021-03-300.039000
402022-06-290.051000
412023-09-280.075000
422025-06-270.076000
432026-03-300.071000
442024-03-270.061000
452016-03-300.019000
462020-03-300.039000
472021-06-290.023000
482021-09-290.026000
492022-03-300.030000
502022-09-290.042000
512023-12-280.043000