f/overrides/event-backup/hcbrx-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
22025-07-310.034000
32025-08-290.032000
42026-07-310.035000
52022-04-280.015000
62023-02-280.024000
72024-10-300.033000
82026-02-270.029000
92026-03-310.037000
102020-03-300.064000
112022-01-280.013000
122022-03-300.021000
132022-02-250.014000
142022-10-280.021000
152023-03-310.030000
162026-04-300.032000
172018-09-270.069000
182019-09-260.073000
192021-11-290.012000
202023-12-190.048000
212024-08-300.032000
222025-03-310.036000
232023-07-310.029000
242023-08-310.029000
252023-09-290.027000
262025-11-250.027000
272022-07-280.019000
282024-06-280.030000
292025-04-300.033000
302022-11-290.022000
312018-12-170.089000
322019-06-270.076000
332023-04-280.026000
342020-12-170.310000
352022-05-260.022000
362024-05-310.033000
372023-10-300.029000
382024-01-310.022000
392024-07-310.036000
402025-01-310.032000
412025-05-300.034000
422019-12-160.166000
432021-07-290.015000
442023-05-310.033000
452025-10-300.033000
462026-01-300.030000
472023-11-300.028000
482025-02-280.030000
492018-06-280.019000
502019-03-280.064000
512022-09-290.020000
522024-03-280.026000
532025-12-190.052000
542026-05-290.032000
552021-06-290.017000
562022-08-300.023000
572024-02-290.021000
582021-12-300.083000
592021-04-290.014000
602021-10-280.013000
612024-11-260.027000
622022-06-290.022000
632022-12-190.072000
642023-01-310.022000
652023-06-300.028000
662024-04-300.035000
672020-09-290.059000
682021-05-270.014000
692021-08-300.016000
702024-09-300.033000
712025-06-300.034000
722025-09-300.034000
732024-12-200.047000
742026-06-300.036000
752020-06-290.060000
762021-03-300.039000
772021-09-290.013000