f/overrides/event-backup/fyx-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

1.2 KiB

1DateDividends
22014-06-240.058000
32014-12-230.106000
42012-12-210.265000
52013-12-180.064000
62017-12-210.183000
72018-03-220.087000
82010-06-220.039000
92012-06-210.125000
102015-12-230.137000
112016-09-210.094000
122010-12-210.078000
132017-06-220.111000
142018-06-210.167000
152022-12-230.330000
162025-12-120.371000
172016-12-210.257000
182018-09-140.093000
192021-09-230.183000
202024-06-270.373000
212016-03-230.070000
222017-03-230.030000
232023-09-220.215000
242024-03-210.123000
252007-12-210.040000
262009-06-230.034000
272013-06-210.055000
282023-12-220.408000
292026-06-250.437000
302011-12-210.044000
312016-06-220.083000
322021-06-240.174000
332009-12-220.032000
342019-03-210.056000
352025-09-250.269000
362015-09-230.066000
372019-06-140.191000
382024-12-130.622000
392013-09-200.029000
402017-09-210.044000
412020-06-250.142000
422021-12-230.503000
432022-09-230.148000
442015-03-250.103000
452019-09-250.178000
462023-03-240.218000
472023-06-270.278000
482008-06-230.035000
492011-06-210.016000
502022-06-240.156000
512025-06-260.082000
522021-03-250.102000
532026-03-260.203000
542013-03-210.022000
552014-03-250.063000
562014-09-230.056000
572019-12-130.303000
582020-09-240.137000
592020-12-240.217000
602008-12-230.063000
612015-06-240.082000
622018-12-180.237000
632022-03-250.112000
642024-09-260.516000