f/overrides/event-backup/ggijx-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
22024-12-121.645000
32016-12-090.107000
42017-06-300.113000
52017-09-290.047000
62021-06-290.099000
72022-06-290.100000
82022-09-290.051000
92016-09-300.068000
102016-12-200.028000
112017-03-300.029000
122018-09-270.021000
132018-12-190.062000
142025-12-110.559000
152019-09-270.019000
162021-03-300.016000
172023-06-290.124000
182024-09-270.069000
192025-12-160.081000
202020-06-290.074000
212020-09-290.068000
222025-06-270.111000
232021-09-290.031000
242021-12-140.042000
252021-12-160.077000
262024-03-270.038000
272024-12-170.070000
282025-03-280.036000
292017-09-280.047000
302018-06-280.097000
312020-03-300.020000
322023-03-300.041000
332023-12-180.110000
342024-06-270.143000
352025-09-290.060000
362026-03-300.055000
372017-12-200.103000
382018-03-290.026000
392019-12-180.085000
402022-03-300.027000
412022-12-160.088000
422023-09-280.068000
432019-03-280.051000
442019-06-270.111000
452020-12-160.071000
462026-06-290.121000