f/overrides/event-backup/gttux-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

436 B

1DateDividends
22018-12-190.341000
32020-12-300.011000
42022-12-160.635000
52023-12-180.785000
62024-12-128.292000
72017-12-114.715000
82016-12-200.407000
92017-12-200.346000
102020-12-160.392000
112021-12-160.450000
122022-12-130.660000
132025-12-112.013000
142015-12-210.454000
152024-12-170.457000
162025-12-160.881000
172016-12-091.586000
182018-12-113.838000
192019-03-250.124000
202019-12-180.400000
212021-12-1414.955000
222015-12-102.047000