f/overrides/event-backup/mtodx-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

2.0 KiB

1DateDividends
22024-11-290.062000
32022-03-310.044000
42022-05-310.074000
52023-08-310.048000
62024-01-310.046000
72024-03-280.065000
82025-03-310.062000
92018-10-310.030000
102021-03-310.076000
112026-06-300.066000
122026-07-310.052000
132019-09-300.047000
142019-12-190.806000
152023-03-310.059000
162024-05-310.063000
172025-06-300.064000
182025-07-310.040000
192019-04-300.043000
202019-06-280.054000
212023-12-210.084000
222025-05-300.084000
232018-08-310.048000
242020-04-300.024000
252019-02-280.050000
262021-08-310.037000
272025-12-180.050000
282018-09-280.044000
292018-11-300.055000
302019-03-290.059000
312019-10-310.032000
322020-05-290.046000
332020-10-300.040000
342021-05-280.054000
352024-12-180.075000
362018-07-310.034000
372019-01-310.047000
382023-01-310.029000
392023-05-310.078000
402026-04-300.070000
412020-01-310.034000
422021-12-161.191000
432021-07-300.033000
442022-07-290.026000
452024-07-310.037000
462025-10-310.049000
472020-02-280.043000
482020-03-310.051000
492021-11-300.037000
502022-04-290.035000
512022-06-300.047000
522022-08-310.044000
532023-06-300.047000
542023-10-310.031000
552018-06-290.060000
562021-04-300.049000
572024-08-300.059000
582025-08-290.055000
592026-01-300.090000
602026-02-270.060000
612023-11-300.042000
622024-06-280.068000
632019-05-310.097000
642019-08-300.048000
652018-03-290.047000
662018-04-300.052000
672024-09-300.051000
682020-08-310.042000
692021-01-290.057000
702022-10-310.029000
712019-11-290.051000
722020-07-310.033000
732021-06-300.050000
742022-11-300.058000
752022-12-210.034000
762023-07-310.037000
772023-09-290.043000
782024-04-300.068000
792018-05-310.082000
802020-11-300.040000
812025-11-280.024000
822021-02-260.074000
832021-09-300.044000
842022-09-300.039000
852024-02-290.053000
862024-10-310.035000
872025-09-300.021000
882018-12-200.373000
892020-09-300.039000
902026-03-310.066000
912022-02-280.041000
922023-04-280.047000
932025-02-280.072000
942025-04-300.057000
952026-05-290.094000
962020-06-300.045000
972022-01-310.028000
982021-10-290.022000
992023-02-280.053000
1002025-01-310.053000
1012019-07-310.047000
1022020-12-170.044000