f/overrides/event-backup/hbfrx-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

1.5 KiB

1DateDividends
22021-12-200.023000
32022-02-250.016000
42022-08-300.025000
52023-10-300.036000
62024-08-300.035000
72025-08-290.035000
82021-08-300.018000
92023-01-310.019000
102023-02-280.027000
112026-02-270.034000
122021-07-290.016000
132021-12-300.149000
142022-07-280.021000
152022-09-290.034000
162022-10-280.023000
172022-12-190.097000
182024-10-300.035000
192025-05-300.036000
202018-06-280.102000
212019-06-270.094000
222020-12-170.218000
232023-08-310.033000
242025-06-300.037000
252026-04-300.037000
262018-09-270.089000
272021-09-290.029000
282019-09-260.081000
292022-03-300.024000
302023-04-280.028000
312023-11-300.033000
322024-09-300.035000
332025-03-310.040000
342025-09-300.038000
352023-09-290.032000
362024-07-310.039000
372025-01-310.026000
382025-02-280.034000
392025-04-300.036000
402019-12-160.152000
412022-06-290.030000
422023-06-300.032000
432025-07-310.038000
442025-11-250.029000
452021-06-290.014000
462023-07-310.035000
472024-05-310.036000
482026-05-290.036000
492020-06-290.081000
502021-03-300.042000
512022-05-260.020000
522026-01-300.024000
532026-06-300.041000
542022-11-290.025000
552018-12-170.141000
562020-03-300.046000
572023-03-310.035000
582023-05-310.036000
592023-12-190.094000
602024-02-290.032000
612024-03-280.036000
622024-04-300.039000
632021-04-290.017000
642024-11-260.030000
652024-12-200.084000
662019-03-280.056000
672021-05-270.017000
682021-10-280.028000
692024-01-310.021000
702020-09-290.068000
712021-11-290.027000
722022-01-280.011000
732025-10-300.037000
742025-12-190.098000
752026-07-310.040000
762022-04-280.019000
772024-06-280.032000
782026-03-310.042000