f/overrides/event-backup/hiiix-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

3.1 KiB

1DateDividends
22020-03-300.013000
32020-12-150.006000
42021-08-300.013000
52024-11-270.018000
62026-07-300.027000
72018-04-270.017000
82019-10-300.016000
92022-05-270.017000
102024-06-270.019000
112016-03-300.028000
122022-04-280.016000
132015-07-300.036000
142015-08-280.029000
152017-07-280.018000
162017-09-280.016000
172013-09-270.036000
182014-04-290.031000
192018-12-280.030000
202023-07-280.022000
212024-05-300.023000
222013-10-300.036000
232014-07-300.029000
242020-01-300.013000
252020-02-270.013000
262021-06-290.015000
272026-03-300.024000
282014-12-300.055000
292018-05-300.018000
302023-02-270.011000
312025-01-300.014000
322015-04-290.034000
332021-10-280.014000
342019-02-270.018000
352013-11-270.037000
362014-11-260.031000
372016-08-300.021000
382020-11-270.014000
392023-01-300.007000
402024-10-300.022000
412014-08-280.029000
422015-09-290.031000
432019-05-300.014000
442024-04-290.024000
452016-05-270.020000
462018-01-300.018000
472018-02-270.014000
482021-02-250.012000
492021-12-140.005000
502025-09-290.012000
512013-12-180.253000
522014-01-300.033000
532023-09-280.020000
542014-09-290.029000
552018-09-270.017000
562018-11-290.018000
572022-10-280.019000
582024-03-270.022000
592026-02-260.019000
602014-03-280.031000
612016-10-280.016000
622016-07-280.021000
632017-11-290.020000
642018-03-280.012000
652019-03-280.016000
662022-02-250.016000
672015-01-290.031000
682016-01-280.026000
692020-07-300.018000
702023-11-290.023000
712024-12-300.033000
722025-10-300.015000
732026-01-290.018000
742013-12-300.071000
752015-11-270.026000
762016-11-290.019000
772023-12-280.033000
782021-04-290.013000
792022-09-290.019000
802024-08-290.020000
812025-05-290.020000
822025-08-280.017000
832014-02-270.033000
842018-06-280.020000
852019-12-300.028000
862022-06-290.018000
872023-08-300.021000
882018-10-300.018000
892019-11-270.017000
902021-03-300.014000
912021-05-270.010000
922021-09-290.014000
932024-07-300.020000
942024-09-270.025000
952014-06-270.029000
962020-05-280.017000
972019-04-290.018000
982024-02-280.017000
992014-05-290.029000
1002019-01-300.020000
1012018-08-300.016000
1022025-02-270.015000
1032014-10-300.031000
1042017-03-300.020000
1052023-10-300.024000
1062026-05-280.024000
1072015-02-260.023000
1082016-09-290.016000
1092025-04-290.018000
1102020-10-290.018000
1112021-07-290.014000
1122017-01-300.015000
1132019-07-300.016000
1142025-06-270.017000
1152025-07-300.021000
1162025-11-260.014000
1172026-04-290.023000
1182015-05-280.034000
1192016-04-280.022000
1202020-04-290.014000
1212026-06-290.027000
1222015-03-300.031000
1232017-10-300.021000
1242023-05-300.024000
1252015-06-290.034000
1262020-08-280.013000
1272019-06-270.015000
1282019-09-270.017000
1292021-12-300.023000
1302022-07-280.017000
1312015-12-300.036000
1322016-06-290.021000
1332021-11-290.017000
1342022-11-290.020000
1352023-03-300.017000
1362024-01-300.015000
1372017-05-300.022000
1382019-08-290.019000
1392022-12-290.034000
1402023-04-270.022000
1412025-12-300.028000
1422020-06-290.032000
1432020-09-290.017000
1442023-06-290.024000
1452018-07-300.019000
1462021-01-280.013000
1472017-06-290.018000
1482022-08-300.017000
1492015-10-290.026000
1502017-04-270.019000
1512017-12-280.029000
1522022-03-300.018000
1532016-02-260.028000
1542017-02-270.014000
1552020-12-300.020000
1562022-01-280.021000
1572025-03-280.020000
1582016-12-290.031000
1592017-08-300.017000