f/overrides/event-backup/gbiux-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

2.8 KiB

1DateDividends
22017-08-310.014000
32018-12-310.022000
42022-10-310.020000
52015-09-300.015000
62020-10-300.018000
72023-12-290.026000
82020-04-300.019000
92021-01-290.019000
102021-07-300.006000
112024-06-280.030000
122026-05-290.034000
132024-09-300.034000
142025-04-300.033000
152016-01-290.015000
162020-07-310.017000
172020-11-300.018000
182021-12-100.044000
192023-04-280.024000
202023-05-310.024000
212025-07-310.031000
222021-08-310.009000
232021-09-300.013000
242022-03-310.014000
252016-12-140.053000
262015-08-310.016000
272017-04-280.014000
282023-01-310.023000
292025-05-300.032000
302025-08-290.030000
312015-12-240.565000
322019-12-310.020000
332025-09-300.031000
342016-06-300.015000
352016-08-310.015000
362020-02-280.019000
372024-01-310.026000
382025-12-310.031000
392026-01-300.031000
402024-03-260.001000
412017-02-280.014000
422020-08-310.019000
432021-02-260.019000
442022-01-310.012000
452022-12-220.023000
462023-09-290.025000
472019-06-280.020000
482017-12-290.107000
492021-10-290.013000
502025-11-280.032000
512026-02-270.031000
522019-08-300.016000
532022-08-310.018000
542023-10-310.026000
552018-02-280.011000
562020-09-300.022000
572020-12-100.352000
582025-01-310.034000
592025-06-300.033000
602016-04-290.013000
612016-10-310.013000
622021-12-310.014000
632023-06-300.024000
642024-08-300.034000
652024-12-230.188000
662022-09-300.018000
672015-11-300.015000
682016-05-310.019000
692018-03-290.012000
702019-04-300.022000
712019-07-310.020000
722020-12-230.132000
732019-05-310.020000
742022-11-300.021000
752015-10-300.016000
762016-02-290.014000
772016-03-310.011000
782018-05-310.015000
792018-07-310.017000
802018-10-310.020000
812023-02-280.024000
822024-03-280.032000
832024-02-290.030000
842025-03-310.033000
852024-07-310.033000
862015-12-150.013000
872016-12-300.009000
882021-03-310.018000
892022-05-310.019000
902022-12-300.020000
912024-05-310.032000
922019-12-100.157000
932020-05-290.022000
942020-12-310.019000
952022-06-300.017000
962016-11-300.013000
972017-03-310.012000
982017-07-310.015000
992018-09-280.017000
1002019-03-290.020000
1012023-03-310.030000
1022024-04-300.032000
1032018-06-290.016000
1042018-11-300.023000
1052019-09-300.016000
1062020-06-300.021000
1072021-04-300.016000
1082022-02-280.015000
1092024-10-310.035000
1102025-02-280.032000
1112026-06-300.034000
1122018-08-310.016000
1132026-03-310.033000
1142017-06-300.015000
1152021-05-280.013000
1162022-07-290.017000
1172023-11-300.027000
1182016-07-290.015000
1192018-01-310.012000
1202019-02-280.020000
1212020-03-310.011000
1222025-10-310.032000
1232017-05-310.016000
1242019-01-310.021000
1252019-10-310.018000
1262020-01-310.019000
1272026-04-300.034000
1282017-10-310.013000
1292019-12-260.024000
1302026-07-310.035000
1312016-09-300.010000
1322017-01-310.013000
1332015-12-310.565000
1342017-11-300.014000
1352021-11-300.012000
1362022-04-290.016000
1372023-08-310.026000
1382017-09-290.010000
1392018-04-300.017000
1402019-11-290.018000
1412021-06-300.010000
1422023-07-310.024000
1432024-11-290.034000