f/overrides/event-backup/blpax-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

1.1 KiB

1DateDividends
22022-06-280.070000
32022-12-280.714000
42023-03-290.056000
52014-06-250.052000
62017-03-230.030000
72013-03-270.037000
82015-09-240.032000
92025-06-250.090000
102025-09-250.086000
112018-09-250.065000
122025-12-290.983000
132013-09-260.039000
142013-12-270.088000
152015-06-250.043000
162017-09-210.054000
172012-06-270.035000
182021-12-290.751000
192023-09-270.076000
202014-03-260.044000
212014-09-250.038000
222017-12-270.383000
232020-09-250.058000
242020-12-230.276000
252012-09-260.025000
262012-12-270.082000
272018-06-260.061000
282019-06-250.064000
292019-03-260.038000
302021-03-290.049000
312023-12-270.191000
322016-06-230.040000
332018-03-260.035000
342024-09-250.078000
352024-12-270.433000
362015-12-290.365000
372018-12-270.471000
382025-03-260.054000
392016-03-240.029000
402022-03-290.053000
412023-06-280.063000
422026-03-260.051000
432026-06-250.105000
442014-12-290.165000
452015-03-250.034000
462019-09-250.064000
472021-06-280.060000
482016-12-280.367000
492020-03-260.040000
502024-03-250.050000
512013-06-260.050000
522016-09-220.044000
532017-06-220.049000
542019-12-270.429000
552020-06-250.065000
562022-09-280.071000
572024-06-250.088000
582021-09-280.061000