f/overrides/event-backup/hahvx-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

1.4 KiB

1DateDividends
22021-07-300.025000
32021-11-300.025000
42022-09-300.028000
52024-01-310.033000
62024-08-300.034000
72025-09-300.037000
82025-12-310.036000
92022-11-300.030000
102023-05-310.031000
112025-08-290.037000
122025-12-290.007000
132026-07-310.036000
142022-01-310.024000
152023-07-310.032000
162026-04-300.036000
172021-03-310.026000
182021-06-300.026000
192022-02-280.025000
202023-06-300.031000
212024-11-290.034000
222023-04-280.031000
232023-09-290.033000
242025-04-300.036000
252021-08-310.026000
262025-05-300.037000
272024-09-300.034000
282024-10-310.035000
292025-07-310.037000
302026-05-290.034000
312021-04-300.027000
322021-09-300.025000
332022-12-300.030000
342023-08-310.031000
352023-12-290.034000
362021-10-290.026000
372022-08-310.027000
382023-03-310.030000
392023-10-310.033000
402024-05-310.034000
412024-06-280.034000
422026-01-300.036000
432021-12-290.022000
442021-12-310.025000
452022-04-290.025000
462023-01-310.030000
472024-02-290.034000
482025-11-280.036000
492025-02-280.035000
502023-11-300.033000
512024-03-280.034000
522024-04-300.034000
532025-06-300.036000
542026-03-310.036000
552023-02-280.030000
562025-01-310.035000
572021-05-280.027000
582022-06-300.026000
592022-07-290.027000
602022-10-310.030000
612024-07-310.034000
622022-03-310.024000
632022-05-310.026000
642024-12-310.035000
652026-02-270.035000
662022-12-280.030000
672023-12-270.027000
682024-12-270.014000
692025-03-310.036000
702025-10-310.038000
712026-06-300.036000