f/overrides/event-backup/abvax-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

495 B

1DateDividends
22025-12-111.738000
32007-12-211.209000
42009-12-220.133000
52014-12-180.211000
62020-12-100.177000
72021-12-091.767000
82004-12-210.375000
92006-12-140.665000
102008-12-220.243000
112012-12-200.161000
122015-12-170.170000
132024-12-122.097000
142002-12-230.065000
152005-12-160.896000
162013-12-200.133000
172016-12-150.159000
182019-12-120.329000
192022-12-081.938000
202023-12-070.772000
212003-12-220.100000
222010-12-210.089000
232011-12-220.126000
242017-12-140.163000
252018-12-130.642000