f/overrides/event-backup/bkbdx-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

835 B

1DateDividends
22020-07-160.095000
32020-10-080.072000
42024-10-100.037000
52017-04-120.102000
62026-04-150.033000
72025-12-091.816000
82016-12-060.070000
92020-04-080.080000
102020-11-240.523000
112022-10-130.043000
122023-04-120.043000
132025-04-090.032000
142026-07-221.167000
152016-07-210.082000
162019-11-260.734000
172021-07-151.898000
182021-10-070.061000
192023-07-200.117000
202023-10-120.031000
212025-07-170.502000
222018-04-110.118000
232018-07-190.118000
242021-11-260.281000
252022-07-140.496000
262023-12-070.053000
272024-12-110.808000
282017-10-120.067000
292018-12-060.491000
302019-07-180.115000
312019-10-100.074000
322022-04-130.043000
332022-11-300.097000
342024-07-180.081000
352025-10-090.039000
362016-10-130.068000
372017-07-200.090000
382018-10-110.078000
392021-04-070.060000
402017-12-040.652000
412019-04-100.100000
422024-04-100.052000