f/overrides/event-backup/lirvx-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

955 B

1DateDividends
22016-03-310.066000
32016-12-300.039000
42019-12-270.038000
52020-03-270.015000
62020-12-180.024000
72021-03-300.018000
82023-06-290.104000
92015-12-310.041000
102017-12-290.035000
112018-03-290.044000
122018-12-270.023000
132019-03-290.051000
142020-06-300.049000
152021-06-290.096000
162026-03-270.061000
172017-09-290.051000
182024-03-270.047000
192025-03-270.037000
202021-09-290.053000
212019-09-270.028000
222020-12-290.048000
232022-09-290.057000
242024-06-270.146000
252025-12-300.034000
262026-06-260.144000
272016-12-160.019000
282019-06-280.123000
292022-12-280.036000
302024-12-270.046000
312016-09-300.036000
322017-06-300.088000
332020-09-290.041000
342021-12-290.042000
352023-03-300.041000
362023-09-280.039000
372025-06-240.165000
382025-09-230.057000
392016-06-300.106000
402024-09-250.044000
412022-06-290.140000
422017-03-310.068000
432018-06-290.109000
442018-09-280.061000
452021-12-170.069000
462022-03-300.040000
472023-12-270.068000
482015-09-300.039000