f/overrides/event-backup/bghsx-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

1.3 KiB

1DateDividends
22021-06-290.056000
32021-08-310.046000
42021-10-290.048000
52021-12-310.047000
62022-06-300.047000
72024-01-310.065000
82024-11-290.064000
92025-10-310.058000
102026-02-270.049000
112026-04-300.053000
122023-11-300.065000
132024-11-260.010000
142025-03-310.063000
152025-12-310.057000
162026-01-300.054000
172022-03-310.045000
182023-05-310.060000
192022-02-280.040000
202022-04-290.044000
212022-07-290.049000
222023-07-310.060000
232025-07-310.060000
242026-06-300.051000
252022-10-310.053000
262024-03-280.063000
272023-03-310.059000
282021-11-300.048000
292023-06-300.059000
302024-02-290.058000
312024-04-300.061000
322024-06-280.061000
332025-08-290.059000
342023-02-280.053000
352022-01-310.043000
362022-11-300.078000
372023-01-310.050000
382024-10-310.064000
392025-04-300.062000
402021-12-030.287000
412022-12-300.055000
422024-08-300.064000
432024-09-300.061000
442021-09-300.046000
452023-04-280.057000
462024-12-310.064000
472025-11-250.007000
482023-12-290.062000
492024-05-310.063000
502025-09-300.055000
512021-07-290.120000
522023-09-290.058000
532024-07-310.065000
542025-02-280.056000
552026-05-290.052000
562026-07-310.052000
572022-09-300.049000
582023-10-310.061000
592025-01-310.064000
602025-11-280.052000
612022-05-310.047000
622022-08-310.049000
632023-08-310.060000
642025-05-300.062000
652025-06-300.060000
662026-03-310.054000