f/overrides/event-backup/gfrsx-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
22024-06-280.050000
32018-10-310.041000
42021-05-280.026000
52023-03-310.062000
62024-11-290.056000
72019-06-280.042000
82021-10-290.027000
92020-09-300.029000
102022-06-300.033000
112025-04-300.053000
122023-04-280.063000
132025-08-290.054000
142018-08-310.037000
152020-12-310.031000
162021-01-290.028000
172023-01-310.062000
182022-12-220.037000
192018-12-310.042000
202020-05-290.033000
212021-04-300.026000
222022-07-290.040000
232020-08-310.031000
242020-11-300.030000
252021-06-300.026000
262023-02-280.057000
272024-03-280.066000
282024-10-310.058000
292025-06-300.051000
302026-04-300.048000
312018-03-290.028000
322021-12-230.005000
332023-07-310.067000
342023-08-310.067000
352025-11-280.049000
362022-10-310.052000
372023-09-290.066000
382024-01-310.067000
392024-02-290.062000
402020-10-300.031000
412021-12-310.028000
422022-04-290.028000
432023-06-300.061000
442019-09-300.040000
452019-10-310.041000
462020-03-310.039000
472020-04-300.034000
482023-12-290.066000
492025-01-310.049000
502020-01-310.040000
512020-02-280.036000
522026-02-270.044000
532024-05-310.062000
542025-02-280.045000
552019-08-300.043000
562022-02-280.025000
572022-03-310.030000
582022-09-300.047000
592024-12-310.055000
602020-07-310.032000
612021-08-310.028000
622025-03-310.054000
632021-11-300.025000
642025-09-300.052000
652025-12-310.050000
662019-04-300.042000
672019-05-310.044000
682023-05-310.062000
692025-05-300.054000
702017-12-290.035000
712018-01-310.037000
722023-10-310.070000
732024-09-300.059000
742022-08-310.044000
752019-07-310.043000
762019-12-310.039000
772019-11-290.039000
782018-04-300.037000
792018-05-310.036000
802019-02-280.040000
812019-03-290.045000
822024-07-310.066000
832026-03-310.049000
842026-06-300.050000
852018-02-280.033000
862018-09-280.037000
872021-03-310.027000
882022-01-310.025000
892020-06-300.031000
902021-02-260.024000
912018-11-300.042000
922023-11-300.069000
932026-05-290.048000
942026-07-310.050000
952021-07-300.028000
962022-11-300.053000
972026-01-300.048000
982018-07-310.036000
992021-09-300.026000
1002024-04-300.060000
1012025-10-310.052000
1022022-05-310.033000
1032022-12-300.060000
1042024-08-300.069000
1052025-07-310.054000
1062018-06-290.037000
1072019-01-310.042000