f/overrides/event-backup/lipkx-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
22012-12-310.090000
32013-03-280.035000
42016-06-300.098000
52022-09-300.052000
62019-12-310.295000
72022-12-230.096000
82023-03-310.051000
92015-06-300.079000
102016-03-310.055000
112020-06-300.108000
122021-06-300.138000
132022-06-300.149000
142014-09-300.045000
152019-06-280.146000
162023-06-300.157000
172025-07-170.012000
182018-03-290.033000
192019-03-280.059000
202021-09-300.048000
212013-09-300.058000
222025-12-290.758000
232026-07-220.022000
242012-09-280.045000
252015-09-300.073000
262016-09-300.033000
272019-09-270.051000
282021-03-310.034000
292014-06-300.133000
302015-03-310.048000
312020-03-310.039000
322023-09-290.051000
332015-12-300.180000
342017-12-290.169000
352022-03-310.037000
362013-06-280.079000
372016-12-300.109000
382013-12-310.193000
392022-07-140.027000
402024-12-240.580000
412014-03-310.052000
422018-12-310.110000
432020-09-300.039000
442014-12-310.134000
452017-09-290.055000
462018-06-290.120000
472020-12-310.123000
482023-12-220.182000
492012-06-290.030000
502017-03-310.034000
512017-06-300.096000
522021-12-310.257000
532012-03-300.032000
542018-09-280.065000
552024-06-280.003000