f/overrides/event-backup/epol-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

655 B

1DateDividends
22019-06-170.040000
32020-12-140.099000
42026-06-150.302000
52019-12-160.489000
62025-12-161.169000
72014-06-250.249000
82015-06-250.208000
92018-06-190.018000
102020-06-150.175000
112023-12-200.651000
122024-12-170.827000
132014-12-170.579000
142017-06-200.079000
152017-12-190.429000
162025-06-160.513000
172012-12-180.629000
182016-06-220.043000
192022-12-130.268000
202021-12-130.219000
212010-12-210.192000
222012-06-210.292000
232013-12-180.734000
242011-06-220.242000
252016-12-210.346000
262022-06-090.141000
272010-06-230.169000
282018-12-180.313000
292021-06-100.061000
302024-06-110.433000
312011-12-201.002000
322013-06-270.238000
332015-12-210.250000