f/overrides/event-backup/gdiux-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

2.7 KiB

1DateDividends
22018-02-280.017000
32019-09-300.024000
42020-10-300.017000
52021-02-260.017000
62022-09-300.020000
72023-05-310.027000
82024-03-280.031000
92021-04-300.015000
102022-10-310.020000
112016-03-310.017000
122017-03-310.020000
132018-12-310.025000
142019-07-310.025000
152016-05-310.022000
162017-11-300.019000
172018-09-280.020000
182025-09-300.035000
192025-12-310.036000
202026-06-300.037000
212015-10-300.015000
222019-06-280.024000
232026-05-290.037000
242023-01-310.023000
252023-06-300.026000
262025-02-280.032000
272017-05-310.020000
282019-05-310.025000
292024-05-310.034000
302025-04-300.035000
312016-02-290.017000
322017-02-280.020000
332021-03-310.015000
342025-07-310.035000
352016-12-300.019000
362018-06-290.023000
372019-04-300.025000
382026-02-270.035000
392018-07-310.022000
402020-03-310.018000
412020-12-100.005000
422021-07-300.008000
432024-10-310.033000
442025-05-300.035000
452015-12-310.046000
462021-12-310.010000
472022-08-310.020000
482026-04-300.037000
492016-01-290.016000
502016-08-310.016000
512016-09-300.015000
522018-03-290.020000
532024-01-310.028000
542024-02-290.028000
552025-10-310.035000
562026-01-300.036000
572026-07-310.038000
582016-06-300.018000
592017-04-280.022000
602019-12-310.025000
612022-02-280.013000
622022-03-310.013000
632022-12-300.023000
642023-02-280.024000
652024-03-260.001000
662024-08-300.034000
672018-05-310.022000
682020-07-310.016000
692015-09-300.017000
702016-07-290.016000
712019-01-310.025000
722020-11-300.016000
732020-02-280.025000
742021-01-290.017000
752017-01-310.019000
762019-03-290.024000
772021-06-300.011000
782022-06-300.018000
792022-11-300.021000
802023-07-310.026000
812023-09-290.026000
822020-06-300.021000
832023-10-310.026000
842023-11-300.026000
852016-11-300.018000
862023-04-280.024000
872016-04-290.020000
882023-12-290.028000
892024-11-290.032000
902017-09-290.016000
912018-08-310.021000
922019-02-280.024000
932020-08-310.016000
942022-05-310.018000
952024-09-300.033000
962016-10-310.016000
972018-10-310.022000
982020-01-310.024000
992020-12-310.017000
1002023-08-310.026000
1012024-04-300.031000
1022025-01-310.034000
1032017-06-300.020000
1042020-04-300.021000
1052021-08-310.009000
1062021-09-300.012000
1072021-11-300.009000
1082023-03-310.025000
1092025-11-280.035000
1102017-07-310.019000
1112018-04-300.021000
1122019-10-310.025000
1132025-03-310.034000
1142017-08-310.018000
1152017-10-310.018000
1162022-04-290.015000
1172025-06-300.036000
1182025-08-290.036000
1192018-01-310.019000
1202019-08-300.023000
1212020-09-300.020000
1222021-05-280.013000
1232021-12-100.005000
1242015-11-300.018000
1252018-11-300.022000
1262021-10-290.011000
1272022-07-290.019000
1282024-06-280.034000
1292015-08-310.019000
1302017-12-290.018000
1312019-11-290.025000
1322020-05-290.022000
1332022-01-310.010000
1342024-07-310.034000
1352024-12-310.033000
1362026-03-310.036000