f/overrides/event-backup/gcpax-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

955 B

1DateDividends
22020-06-240.025000
32021-03-240.012000
42021-06-240.009000
52022-03-240.020000
62022-09-260.025000
72023-06-260.028000
82023-09-260.025000
92017-09-280.024000
102025-03-250.019000
112016-09-300.024000
122017-06-280.027000
132018-09-250.022000
142020-09-240.017000
152020-12-180.014000
162021-09-240.025000
172021-12-210.016000
182015-03-300.022000
192015-09-290.022000
202019-12-180.026000
212022-12-210.031000
222024-03-250.030000
232014-12-180.040000
242017-12-200.016000
252024-12-200.027000
262025-12-220.019000
272026-03-250.015000
282016-06-300.025000
292025-09-260.017000
302020-03-250.023000
312018-06-260.025000
322019-03-260.032000
332019-09-250.024000
342024-06-260.023000
352024-09-260.021000
362016-03-300.027000
372016-12-200.025000
382023-03-240.031000
392015-12-210.024000
402017-03-290.024000
412018-03-260.018000
422018-12-190.024000
432019-06-250.025000
442022-06-240.023000
452023-12-190.032000
462025-06-260.022000
472015-06-250.060000
482026-06-250.017000