f/overrides/event-backup/drigx-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

875 B

1DateDividends
22018-06-280.078000
32019-06-270.085000
42019-09-270.061000
52020-03-300.042000
62023-09-280.122000
72024-12-130.312000
82025-06-270.148000
92016-09-290.029000
102018-09-270.063000
112019-12-170.124000
122021-06-290.105000
132023-03-300.027000
142023-12-130.257000
152025-03-280.055000
162017-03-300.035000
172019-03-280.027000
182020-12-160.343000
192021-03-300.026000
202023-06-290.110000
212024-03-270.018000
222024-06-270.167000
232025-12-150.662000
242026-06-290.220000
252016-03-300.045000
262016-06-290.066000
272017-06-290.070000
282018-03-280.012000
292018-12-180.113000
302022-03-300.052000
312017-12-150.116000
322020-06-290.043000
332021-12-150.390000
342022-09-290.182000
352025-09-290.136000
362015-12-160.010000
372016-12-150.066000
382017-09-280.026000
392020-09-290.051000
402021-09-290.120000
412022-06-290.159000
422022-12-140.320000
432024-09-270.084000
442026-03-300.019000