f/overrides/event-backup/kng-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

1.1 KiB

1DateDividends
22018-09-260.464000
32023-08-220.555000
42024-02-210.374000
52024-07-230.376000
62024-08-210.380000
72025-08-210.356000
82018-06-270.405000
92019-06-190.466000
102020-06-240.427000
112024-04-230.374000
122024-05-210.383000
132025-03-270.363000
142021-09-230.491000
152023-03-240.510000
162023-11-210.365000
172026-02-200.370000
182026-04-210.348000
192024-11-210.382000
202026-01-210.362000
212024-09-260.391000
222025-07-220.355000
232020-09-230.441000
242025-11-210.344000
252026-08-210.362000
262022-03-250.516000
272025-06-260.350000
282021-12-230.506000
292023-06-270.507000
302026-05-210.340000
312019-03-200.462000
322022-12-230.529000
332023-09-220.381000
342023-12-220.380000
352025-02-210.362000
362026-06-250.347000
372019-09-250.476000
382022-06-240.500000
392024-10-220.393000
402025-04-220.346000
412025-12-120.344000
422025-10-210.344000
432021-03-250.480000
442023-10-240.358000
452024-03-210.382000
462024-06-270.373000
472025-01-220.363000
482025-09-250.348000
492020-12-290.462000
502022-09-230.502000
512024-12-130.378000
522026-07-210.360000
532019-12-270.490000
542024-01-230.373000
552025-05-210.360000
562026-03-260.345000
572020-03-250.394000
582021-06-240.497000
592018-12-270.451000