f/overrides/event-backup/julcx-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
22012-12-270.226000
32014-09-300.101000
42012-06-290.094000
52018-06-290.076000
62023-12-270.154000
72013-09-300.090000
82016-03-310.058000
92016-12-280.333000
102025-03-310.097000
112026-06-300.132000
122012-03-300.081000
132019-09-300.077000
142021-06-300.077000
152024-03-280.087000
162024-06-280.126000
172025-12-300.183000
182022-03-310.079000
192013-12-270.193000
202023-09-290.106000
212018-03-290.051000
222019-12-270.315000
232024-09-300.113000
242026-03-310.070000
252012-09-280.109000
262015-03-310.062000
272018-09-280.088000
282022-09-300.116000
292023-06-300.110000
302025-09-300.117000
312014-06-300.090000
322014-12-290.651000
332015-12-290.472000
342022-12-280.444000
352023-03-310.083000
362016-06-300.068000
372021-09-300.104000
382016-09-300.083000
392017-09-290.071000
402018-12-270.318000
412019-03-290.057000
422020-09-300.073000
432020-12-290.367000
442013-06-280.086000
452014-03-310.066000
462015-09-300.102000
472020-06-300.064000
482021-12-290.600000
492022-06-300.112000
502017-06-300.070000
512019-06-280.077000
522020-03-310.118000
532025-06-300.118000
542017-03-310.053000
552021-03-310.053000
562015-06-300.072000
572013-03-280.071000
582017-12-270.290000
592024-12-300.167000