f/overrides/event-backup/likkx-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
22012-03-300.022000
32013-06-280.080000
42014-06-300.133000
52022-07-140.025000
62022-09-300.077000
72022-12-230.096000
82016-12-300.113000
92024-06-280.003000
102024-12-240.531000
112020-03-310.043000
122025-12-290.745000
132020-09-300.042000
142023-06-300.144000
152014-12-310.157000
162017-09-290.057000
172018-06-290.115000
182020-06-300.102000
192014-09-300.049000
202026-07-220.026000
212018-03-290.037000
222020-12-310.115000
232021-06-300.137000
242022-03-310.042000
252023-09-290.066000
262025-07-170.017000
272021-03-310.037000
282015-09-300.068000
292016-03-310.055000
302017-03-310.036000
312022-06-300.139000
322015-06-300.079000
332021-12-310.257000
342023-12-220.166000
352012-06-290.032000
362013-09-300.057000
372018-12-310.101000
382019-12-310.286000
392013-03-280.033000
402016-06-300.092000
412019-06-280.137000
422019-09-270.055000
432012-09-280.046000
442013-12-310.203000
452015-03-310.047000
462019-03-280.058000
472014-03-310.053000
482016-09-300.036000
492021-09-300.060000
502017-06-300.090000
512015-12-300.191000
522023-03-310.057000
532012-12-310.113000
542017-12-290.152000
552018-09-280.066000