f/overrides/event-backup/bfix-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

1.0 KiB

1DateDividends
22022-03-290.010000
32024-07-300.097000
42025-09-250.070000
52025-12-180.087000
62022-10-270.055000
72023-07-270.075000
82023-12-270.089000
92024-01-290.063000
102022-06-280.015000
112023-02-240.046000
122024-12-240.100000
132025-02-270.080000
142023-03-290.083000
152023-08-290.092000
162024-08-290.087000
172026-01-290.068000
182022-12-230.070000
192023-01-270.139000
202023-06-280.077000
212024-06-270.078000
222024-11-270.096000
232026-06-290.076000
242025-10-300.076000
252026-02-260.065000
262026-04-290.075000
272023-05-260.085000
282023-09-270.056000
292024-05-300.090000
302026-05-280.069000
312024-04-260.093000
322025-04-290.073000
332023-11-280.080000
342025-01-300.089000
352022-09-280.054000
362023-10-270.094000
372024-10-300.090000
382026-07-300.070000
392023-04-260.073000
402025-05-290.089000
412025-08-280.068000
422024-02-270.124000
432022-05-260.014000
442025-07-300.092000
452025-11-250.073000
462022-07-270.013000
472022-11-280.078000
482024-09-270.085000
492025-03-270.077000
502022-04-270.011000
512022-08-290.042000
522024-03-260.084000
532025-06-260.069000
542026-03-300.078000