f/overrides/event-backup/clpyx-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

395 B

1DateDividends
22018-06-191.466000
32020-06-191.878000
42022-06-222.423000
52025-12-108.149000
62026-06-222.174000
72017-12-061.779000
82021-06-142.229000
92022-12-123.489000
102024-12-114.403000
112025-06-136.520000
122023-12-122.907000
132017-06-200.457000
142018-12-062.767000
152019-06-182.676000
162020-12-102.211000
172021-12-108.249000
182019-12-122.414000
192023-06-221.639000
202024-06-140.753000