f/overrides/event-backup/lpvax-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
22025-12-290.997000
32015-09-300.036000
42023-06-300.088000
52015-03-310.028000
62020-09-300.060000
72017-09-290.045000
82011-09-300.014000
92016-09-300.033000
102019-06-280.072000
112020-12-310.043000
122022-06-300.050000
132023-12-220.314000
142018-09-280.047000
152018-06-290.282000
162024-12-241.516000
172012-03-300.017000
182013-03-280.026000
192017-12-291.164000
202018-12-310.969000
212024-06-280.138000
222012-06-290.071000
232026-07-220.136000
242012-12-310.072000
252021-03-310.152000
262025-07-170.141000
272019-03-280.014000
282014-09-300.025000
292017-03-310.021000
302016-03-310.036000
312011-06-300.081000
322014-03-310.044000
332013-09-300.048000
342019-09-270.039000
352022-07-140.169000
362018-03-290.055000
372012-09-280.022000
382013-12-310.607000
392014-06-300.235000
402021-06-300.155000
412022-03-310.143000
422023-03-310.030000
432011-03-310.006000
442011-12-300.111000
452016-12-300.103000
462013-06-280.051000
472016-06-300.073000
482020-06-300.165000
492015-06-300.143000
502015-12-300.280000
512017-06-300.338000
522019-12-310.604000
532020-03-310.036000
542021-12-311.974000
552010-12-310.700000
562014-12-310.834000
572023-09-290.059000