f/overrides/event-backup/hsdvx-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

1.9 KiB

1DateDividends
22026-02-270.037000
32026-05-290.039000
42019-05-310.025000
52021-08-310.015000
62023-10-310.031000
72023-12-270.013000
82024-10-310.036000
92025-10-310.038000
102026-01-300.038000
112020-09-300.018000
122019-09-300.024000
132020-06-300.021000
142021-04-300.016000
152023-04-280.027000
162023-06-300.028000
172024-03-280.035000
182026-03-310.038000
192019-04-300.025000
202021-06-300.015000
212021-11-300.014000
222022-02-280.014000
232022-09-300.021000
242022-11-300.024000
252023-01-310.025000
262024-02-290.034000
272019-12-310.023000
282025-12-310.037000
292021-02-260.017000
302021-10-290.014000
312022-10-310.022000
322024-11-290.036000
332019-07-310.025000
342022-03-310.015000
352024-08-300.035000
362025-12-290.006000
372019-11-290.023000
382023-09-290.030000
392024-04-300.035000
402025-05-300.038000
412025-07-310.038000
422025-11-280.036000
432020-11-300.018000
442019-08-300.024000
452019-10-310.023000
462020-04-300.021000
472020-07-310.020000
482020-08-310.019000
492021-05-280.016000
502021-12-290.019000
512019-06-280.025000
522024-05-310.036000
532025-08-290.038000
542026-06-300.038000
552021-01-290.017000
562022-12-280.015000
572022-12-300.025000
582023-08-310.030000
592024-01-310.034000
602024-06-280.036000
612024-07-310.037000
622025-06-300.038000
632022-08-310.020000
642020-10-300.018000
652021-03-310.016000
662021-07-300.015000
672023-02-280.025000
682023-05-310.028000
692019-12-270.018000
702020-03-310.022000
712020-05-290.021000
722024-12-310.036000
732025-02-280.035000
742025-09-300.038000
752026-04-300.038000
762026-07-310.038000
772020-02-280.022000
782021-09-300.015000
792021-12-310.014000
802022-05-310.016000
812023-11-300.032000
822024-09-300.036000
832024-12-270.013000
842025-01-310.036000
852020-12-290.020000
862020-12-310.018000
872022-01-310.014000
882025-04-300.037000
892019-03-290.025000
902023-03-310.026000
912023-07-310.029000
922023-12-290.034000
932025-03-310.036000
942020-01-310.023000
952022-06-300.016000
962022-07-290.018000
972022-04-290.015000