f/overrides/event-backup/eqal-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

915 B

1DateDividends
22018-09-240.146000
32019-03-180.074000
42019-09-230.154000
52021-03-220.195000
62023-03-200.198000
72015-03-200.037000
82016-06-170.110000
92026-06-220.247000
102023-06-200.187000
112025-03-240.225000
122017-12-180.139000
132018-06-180.108000
142020-03-230.165000
152020-06-220.152000
162020-09-210.143000
172022-06-210.205000
182015-12-180.169000
192017-03-170.026000
202025-09-220.260000
212026-03-230.248000
222022-12-190.160000
232019-06-240.131000
242022-03-210.191000
252024-12-230.211000
262025-06-230.209000
272016-03-180.063000
282024-03-180.186000
292017-06-160.090000
302017-09-180.112000
312018-03-190.070000
322019-12-230.193000
332020-12-210.175000
342024-09-230.217000
352015-09-180.091000
362016-12-160.168000
372021-06-210.166000
382021-12-200.097000
392022-09-190.227000
402024-06-240.169000
412025-12-220.247000
422015-06-190.091000
432018-12-240.130000
442023-12-180.213000
452016-09-160.081000
462023-09-180.231000