f/overrides/event-backup/gppsx-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

2.1 KiB

1DateDividends
22022-12-300.032000
32023-12-290.045000
42018-10-310.021000
52020-10-300.005000
62023-08-310.045000
72024-02-290.046000
82026-05-290.033000
92026-06-300.033000
102020-12-310.003000
112021-03-310.003000
122021-11-300.002000
132024-09-300.043000
142025-02-280.037000
152018-04-300.017000
162019-01-310.024000
172021-01-290.003000
182023-01-310.034000
192025-06-300.038000
202022-01-310.002000
212026-02-270.032000
222018-03-290.016000
232023-06-300.042000
242024-10-310.042000
252024-12-310.040000
262024-03-260.001000
272021-08-310.002000
282022-06-300.010000
292023-04-280.039000
302023-11-300.045000
312019-09-300.020000
322020-06-300.009000
332020-04-300.013000
342020-08-310.006000
352019-02-280.022000
362019-08-300.021000
372019-12-310.018000
382021-10-290.002000
392019-12-100.004000
402018-05-310.019000
412022-07-290.015000
422026-01-300.033000
432019-05-310.023000
442020-02-280.017000
452024-04-300.044000
462025-01-310.041000
472025-09-300.037000
482022-04-290.005000
492025-08-290.039000
502018-08-310.020000
512019-07-310.023000
522025-11-280.035000
532026-04-300.034000
542022-05-310.007000
552019-10-310.020000
562020-03-310.015000
572022-08-310.018000
582018-01-310.013000
592019-11-290.018000
602021-05-280.003000
612019-04-300.023000
622024-06-280.044000
632023-05-310.043000
642018-02-280.013000
652021-09-300.002000
662019-06-280.023000
672020-09-300.006000
682023-07-310.044000
692025-05-300.039000
702026-07-310.034000
712017-12-290.011000
722018-11-300.022000
732019-03-290.024000
742024-03-280.044000
752020-07-310.008000
762021-12-310.002000
772023-03-310.039000
782020-01-310.018000
792018-09-280.020000
802021-06-300.003000
812025-04-300.039000
822020-05-290.011000
832021-04-300.003000
842021-07-300.002000
852023-10-310.046000
862024-05-310.045000
872025-03-310.040000
882025-12-310.035000
892018-07-310.019000
902018-12-310.023000
912023-02-280.034000
922020-11-300.004000
932024-11-290.041000
942025-07-310.040000
952018-06-290.020000
962024-07-310.045000
972026-03-310.034000
982022-09-300.020000
992022-10-310.025000
1002022-11-300.029000
1012024-01-310.046000
1022024-08-300.045000
1032025-10-310.038000
1042022-02-280.002000
1052021-02-260.003000
1062022-03-310.003000
1072023-09-290.045000