f/overrides/event-backup/fskax-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

655 B

1DateDividends
22011-12-160.560000
32013-12-130.699000
42014-12-190.828000
52015-04-100.170000
62018-12-280.064000
72021-04-090.135000
82022-04-080.178000
92025-12-191.786000
102013-04-120.133000
112023-12-151.610000
122012-12-140.668000
132018-12-141.457000
142023-04-140.219000
152026-04-100.164000
162012-04-130.127000
172016-04-150.293000
182017-04-120.299000
192018-04-110.273000
202019-04-120.371000
212023-12-270.030000
222024-04-120.260000
232014-04-110.151000
242017-12-151.477000
252019-12-131.383000
262020-12-111.327000
272021-12-101.400000
282022-12-161.544000
292025-04-110.108000
302015-12-181.292000
312016-12-161.273000
322020-04-080.231000
332024-12-201.652000