f/overrides/event-backup/bdokx-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
22025-03-310.090000
32015-03-310.051000
42022-12-130.013000
52012-09-280.050000
62014-09-300.057000
72021-06-300.082000
82021-09-300.084000
92022-01-030.008000
102023-09-290.064000
112013-12-310.048000
122017-09-290.060000
132014-12-310.726000
142014-06-300.300000
152017-03-310.052000
162018-03-290.053000
172020-12-100.029000
182024-12-120.032000
192025-06-300.106000
202012-03-300.052000
212012-06-290.077000
222023-03-310.083000
232023-12-140.052000
242026-06-300.110000
252015-12-300.104000
262016-09-300.052000
272025-12-160.123000
282016-03-310.048000
292018-06-290.103000
302024-06-280.113000
312025-09-300.073000
322016-12-160.090000
332019-03-280.059000
342014-03-310.105000
352016-06-300.089000
362022-06-300.098000
372012-12-310.227000
382013-06-280.096000
392018-12-140.052000
402019-06-280.101000
412022-03-310.061000
422024-09-300.071000
432019-09-270.065000
442020-06-300.053000
452015-09-300.013000
462021-03-310.075000
472021-12-090.087000
482024-03-280.071000
492015-06-300.136000
502019-12-120.067000
512022-09-300.071000
522023-06-300.091000
532026-03-310.070000
542011-09-300.064000
552013-03-280.048000
562018-09-280.061000
572020-03-310.061000
582020-09-300.064000
592013-09-300.050000
602017-06-300.089000