f/overrides/event-backup/eema-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

595 B

1DateDividends
22012-12-180.483000
32013-06-270.433000
42014-12-170.463000
52017-06-200.259000
62018-06-190.330000
72025-12-161.204000
82015-06-250.383000
92016-12-210.661000
102020-12-140.766000
112023-06-070.314000
122012-06-210.407000
132022-06-090.345000
142021-06-100.122000
152025-06-160.185000
162026-06-150.339000
172014-06-250.312000
182018-12-180.988000
192019-12-161.007000
202021-12-131.676000
212017-12-191.020000
222019-06-170.307000
232022-12-130.785000
242023-12-201.172000
252024-06-110.248000
262024-12-171.000000
272013-12-180.950000
282015-12-210.849000
292016-06-220.252000
302020-06-150.244000