f/overrides/event-backup/fxn-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
22015-12-230.069000
32023-06-270.098000
42023-09-220.071000
52013-06-210.044000
62015-06-240.094000
72016-06-220.057000
82018-09-140.045000
92009-06-230.017000
102010-06-220.033000
112021-09-230.037000
122022-12-230.125000
132024-06-270.079000
142026-06-250.062000
152009-12-220.022000
162022-06-240.113000
172013-03-210.049000
182017-06-220.046000
192020-12-240.065000
202010-12-210.083000
212011-06-210.023000
222021-06-240.005000
232016-03-230.028000
242019-12-130.042000
252020-09-240.259000
262024-03-210.081000
272024-09-260.157000
282025-03-270.109000
292013-12-180.056000
302014-12-230.107000
312018-12-180.066000
322019-03-210.015000
332012-06-210.067000
342017-12-210.050000
352014-09-230.116000
362021-12-230.063000
372014-03-250.038000
382020-06-250.006000
392008-06-230.011000
402008-12-230.016000
412020-03-260.043000
422022-09-230.103000
432023-12-220.108000
442025-06-260.096000
452017-09-210.049000
462018-06-210.031000
472013-09-200.057000
482016-09-210.047000
492024-12-130.092000
502007-12-210.117000
512019-09-250.099000
522015-03-250.078000
532018-03-220.024000
542022-03-250.048000
552025-09-250.099000
562025-12-120.114000
572014-06-240.103000
582015-09-230.086000
592016-12-210.041000
602017-03-230.035000
612023-03-240.239000
622026-03-260.084000
632011-12-210.067000
642012-12-210.144000