f/overrides/event-backup/dihrx-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

755 B

1DateDividends
22022-06-290.174000
32025-03-280.038000
42022-03-300.049000
52018-03-280.035000
62018-12-180.036000
72020-09-290.053000
82020-12-160.033000
92021-06-290.101000
102021-09-290.087000
112021-12-150.172000
122018-06-280.100000
132020-06-290.049000
142022-12-140.036000
152023-09-280.071000
162019-12-170.038000
172021-03-300.065000
182019-03-280.053000
192019-06-270.095000
202024-09-270.070000
212025-09-290.069000
222026-03-300.013000
232017-06-290.018000
242017-09-280.038000
252023-03-300.063000
262023-12-130.058000
272025-12-150.149000
282026-06-290.162000
292020-03-300.039000
302022-09-290.081000
312024-06-270.130000
322025-06-270.168000
332018-09-270.046000
342024-03-270.055000
352023-06-290.138000
362024-12-130.036000
372017-12-150.038000
382019-09-270.051000