f/overrides/event-backup/lpjkx-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
22015-09-300.058000
32018-12-311.042000
42019-09-270.052000
52020-03-310.039000
62015-06-300.155000
72020-06-300.173000
82024-12-241.098000
92011-09-300.039000
102013-12-310.511000
112021-12-311.659000
122019-06-280.074000
132020-09-300.078000
142020-12-310.084000
152023-03-310.050000
162012-03-300.036000
172015-12-300.355000
182016-03-310.050000
192012-09-280.044000
202015-03-310.052000
212017-03-310.037000
222023-09-290.095000
232025-07-170.080000
242013-09-300.065000
252014-06-300.208000
262017-06-300.261000
272018-06-290.275000
282022-03-310.128000
292022-06-300.080000
302014-09-300.037000
312012-12-310.078000
322014-03-310.062000
332016-06-300.081000
342019-12-310.601000
352023-12-220.259000
362026-07-220.135000
372014-12-310.830000
382016-09-300.050000
392021-06-300.229000
402022-07-140.091000
412025-12-290.648000
422011-12-300.066000
432016-12-300.100000
442021-09-300.023000
452024-06-280.119000
462010-12-310.569000
472017-12-291.040000
482019-03-280.045000
492012-06-290.085000
502018-09-280.059000
512023-06-300.106000
522011-03-310.020000
532011-06-300.091000
542018-03-290.060000
552021-03-310.096000
562013-06-280.070000
572017-09-290.058000