f/overrides/event-backup/maukx-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
22025-05-300.041000
32017-06-300.016000
42018-08-310.021000
52019-01-310.023000
62023-01-310.039000
72023-02-280.041000
82023-06-300.045000
92018-12-260.018000
102018-01-310.019000
112019-12-310.024000
122021-04-300.012000
132022-08-310.022000
142023-03-310.044000
152023-11-300.053000
162017-12-290.019000
172018-06-290.021000
182023-10-310.052000
192025-06-300.041000
202016-06-300.013000
212018-12-310.023000
222021-07-300.012000
232022-07-290.021000
242024-12-310.046000
252017-11-300.019000
262018-09-280.021000
272018-10-310.021000
282017-07-310.017000
292022-01-310.011000
302022-11-300.038000
312024-03-280.052000
322020-01-310.023000
332020-03-310.021000
342016-04-290.013000
352016-10-310.013000
362017-03-310.014000
372019-11-290.024000
382023-04-280.044000
392023-05-300.044000
402016-05-310.013000
412019-06-280.026000
422025-07-310.041000
432025-11-280.040000
442026-04-300.036000
452017-10-310.019000
462019-04-300.026000
472023-12-290.053000
482026-07-310.037000
492022-09-300.030000
502022-12-300.039000
512015-04-300.012000
522016-07-290.013000
532019-03-290.024000
542019-10-310.026000
552020-02-280.022000
562022-04-290.012000
572024-02-290.053000
582026-02-270.032000
592026-05-290.036000
602022-05-310.014000
612024-08-300.050000
622022-06-300.017000
632024-07-310.050000
642014-12-310.026000
652015-05-290.012000
662016-09-300.013000
672018-03-290.019000
682026-06-300.036000
692016-03-310.012000
702021-05-280.012000
712022-10-310.033000
722025-03-310.041000
732025-08-290.041000
742016-02-290.012000
752020-05-290.018000
762020-06-300.016000
772020-11-300.012000
782020-12-310.012000
792023-09-290.052000
802015-07-310.012000
812021-08-310.012000
822024-01-310.050000
832025-01-310.044000
842025-04-300.041000
852015-03-310.012000
862017-05-310.016000
872018-02-280.019000
882020-09-300.012000
892025-12-310.040000
902015-02-270.012000
912018-11-300.022000
922021-02-260.012000
932018-04-300.019000
942021-03-310.012000
952022-02-280.011000
962016-12-300.046000
972021-01-290.012000
982021-09-300.012000
992022-03-310.012000
1002026-03-310.035000
1012015-08-310.012000
1022015-10-300.011000
1032017-02-280.014000
1042018-05-310.021000
1052020-08-310.014000
1062024-11-290.047000
1072015-11-300.011000
1082015-12-310.016000
1092019-07-310.026000
1102021-06-300.012000
1112024-06-280.050000
1122018-07-310.021000
1132019-05-310.026000
1142015-09-300.011000
1152017-04-280.015000
1162023-07-310.049000
1172025-10-310.040000
1182021-10-290.012000
1192024-04-300.050000
1202014-11-280.011000
1212015-06-300.012000
1222016-01-290.011000
1232017-08-310.017000
1242019-02-280.024000
1252019-08-300.026000
1262024-05-310.050000
1272024-09-300.049000
1282025-02-280.041000
1292015-01-300.012000
1302017-09-290.019000
1312020-04-300.019000
1322023-08-310.050000
1332016-08-310.013000
1342017-01-310.014000
1352019-12-260.003000
1362021-12-310.011000
1372024-10-310.049000
1382020-10-300.012000
1392025-09-300.040000
1402026-01-300.039000
1412014-10-310.010000
1422016-11-300.013000
1432019-09-300.026000
1442020-07-310.014000
1452021-11-300.012000