f/overrides/event-backup/glbix-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

1015 B

1DateDividends
22012-09-200.019000
32016-12-150.007000
42017-11-160.882000
52022-11-170.328000
62024-12-120.166000
72012-06-210.038000
82009-03-260.013000
92011-06-230.045000
102017-12-210.011000
112022-06-160.004000
122022-12-150.086000
132008-12-300.045000
142012-03-220.016000
152013-06-200.031000
162013-11-271.096000
172014-12-180.030000
182009-12-300.010000
192015-11-190.366000
202016-11-170.868000
212019-06-200.012000
222025-12-100.203000
232011-12-290.069000
242011-11-290.098000
252012-12-270.086000
262014-09-180.012000
272018-11-150.640000
282019-03-140.005000
292022-09-150.044000
302011-09-220.016000
312017-09-210.007000
322019-12-190.059000
332024-11-140.566000
342010-03-250.017000
352013-12-260.061000
362014-03-200.027000
372019-09-190.012000
382020-12-170.023000
392021-11-180.192000
402023-09-140.012000
412025-11-130.714000
422010-11-240.497000
432009-09-240.034000
442010-04-300.037000
452010-12-300.028000
462014-06-200.045000
472014-11-201.086000
482018-06-210.018000
492018-12-200.002000
502009-06-240.040000
512023-12-140.225000