f/overrides/event-backup/hilax-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

515 B

1DateDividends
22010-11-190.246000
32018-12-170.703000
42019-01-310.002000
52025-12-290.714000
62012-12-201.042000
72016-12-280.273000
82020-12-290.163000
92022-12-280.401000
102024-12-270.559000
112010-12-220.026000
122014-12-300.070000
132015-12-110.261000
142015-12-290.179000
152019-02-280.002000
162019-03-290.002000
172019-04-300.002000
182023-12-270.443000
192011-12-220.081000
202016-12-160.441000
212017-12-150.609000
222017-12-270.545000
232018-12-270.344000
242019-12-270.422000
252021-12-290.481000
262025-12-110.676000