f/overrides/event-backup/eafhx-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

6.1 KiB

1DateDividends
22019-02-280.033000
32022-04-290.025000
42004-05-280.028000
52007-02-280.050000
62013-07-310.029000
72014-12-310.030000
82021-05-280.023000
92021-12-310.025000
102021-08-310.024000
112022-05-310.026000
122004-03-310.030000
132005-04-290.037000
142009-09-300.032000
152014-01-310.028000
162018-01-310.030000
172020-02-280.028000
182024-03-280.056000
192001-10-310.046000
202019-08-300.034000
212026-07-310.040000
222020-11-300.025000
232001-07-310.052000
242002-08-300.042000
252003-01-310.038000
262013-10-310.027000
272015-07-310.030000
282015-08-310.031000
292002-05-310.039000
302006-04-280.050000
312009-07-310.031000
322011-05-310.032000
332020-06-300.024000
342016-03-310.031000
352019-12-310.031000
362002-06-280.039000
372007-05-310.054000
382007-09-280.053000
392009-04-300.029000
402011-04-290.031000
412013-02-280.030000
422022-12-300.047000
432023-07-310.054000
442026-06-300.038000
452003-07-310.035000
462003-09-300.030000
472008-07-310.039000
482025-05-300.048000
492021-11-300.023000
502001-01-310.075000
512003-11-280.030000
522007-04-300.053000
532009-06-300.031000
542011-12-300.032000
552009-05-290.031000
562009-10-300.033000
572012-11-300.033000
582014-02-280.024000
592022-10-310.040000
602023-04-280.050000
612016-05-310.031000
622021-07-300.023000
632026-04-300.039000
642025-02-280.045000
652001-04-300.062000
662001-08-310.050000
672010-08-310.034000
682010-10-290.032000
692014-05-300.027000
702021-02-260.023000
712001-02-280.064000
722006-10-310.056000
732013-08-300.029000
742014-11-280.029000
752012-02-290.036000
762012-03-300.036000
772012-05-310.035000
782016-04-290.030000
792019-07-310.041000
802021-09-300.023000
812017-02-280.025000
822023-05-310.051000
832004-04-300.028000
842006-02-280.044000
852002-02-280.035000
862002-12-310.038000
872013-12-300.011000
882022-11-300.046000
892026-02-270.038000
902004-07-300.030000
912006-03-310.049000
922007-10-310.055000
932023-09-290.051000
942025-03-310.051000
952025-10-310.046000
962008-02-290.049000
972018-11-300.032000
982005-05-310.038000
992010-03-310.034000
1002013-03-280.031000
1012022-01-310.023000
1022003-02-280.033000
1032008-09-300.039000
1042014-09-300.028000
1052018-09-280.030000
1062022-09-300.037000
1072002-04-300.039000
1082003-10-310.031000
1092018-10-310.033000
1102013-04-300.030000
1112018-03-290.030000
1122024-12-310.051000
1132025-12-310.055000
1142006-08-310.054000
1152017-09-290.028000
1162022-07-290.032000
1172023-06-300.052000
1182000-11-300.073000
1192012-09-280.038000
1202024-07-310.055000
1212017-08-310.029000
1222017-12-290.029000
1232020-03-310.028000
1242004-08-310.030000
1252006-05-310.052000
1262007-01-310.056000
1272008-03-310.047000
1282024-05-310.056000
1292025-11-280.043000
1302009-12-310.103000
1312017-06-300.028000
1322019-01-310.035000
1332024-06-280.054000
1342026-03-310.041000
1352001-11-300.041000
1362004-06-300.028000
1372006-01-310.048000
1382015-11-300.030000
1392002-10-150.038000
1402012-10-310.033000
1412013-01-310.033000
1422018-12-310.033000
1432020-12-310.028000
1442021-01-290.024000
1452006-06-300.050000
1462008-10-310.046000
1472017-11-300.028000
1482024-01-310.056000
1492025-04-300.049000
1502002-07-310.041000
1512008-04-300.040000
1522008-11-280.043000
1532009-02-270.026000
1542018-07-310.032000
1552019-11-290.029000
1562000-12-290.075000
1572009-11-300.032000
1582012-06-290.034000
1592016-02-290.030000
1602019-05-310.035000
1612024-02-290.052000
1622005-01-310.034000
1632011-02-280.030000
1642025-07-310.048000
1652003-04-300.038000
1662014-03-310.028000
1672015-04-300.030000
1682020-07-310.024000
1692025-08-290.047000
1702006-09-290.054000
1712007-03-300.055000
1722009-01-300.032000
1732013-05-310.030000
1742009-08-310.030000
1752010-07-300.037000
1762014-07-310.028000
1772016-10-310.030000
1782004-02-270.027000
1792023-01-310.049000
1802024-04-300.054000
1812017-04-280.028000
1822020-05-290.025000
1832001-09-280.048000
1842003-06-300.037000
1852004-01-300.029000
1862012-04-300.032000
1872015-02-270.027000
1882016-09-300.030000
1892021-03-310.025000
1902024-09-300.052000
1912013-12-310.035000
1922017-03-310.027000
1932019-06-280.033000
1942023-03-310.050000
1952026-01-300.043000
1962000-10-310.115000
1972006-11-300.054000
1982011-08-310.033000
1992015-05-290.030000
2002019-04-300.034000
2012020-01-310.030000
2022004-10-290.032000
2032011-01-310.033000
2042012-12-310.033000
2052018-04-300.030000
2062019-03-290.037000
2072023-08-310.057000
2082010-01-290.035000
2092013-06-280.029000
2102014-04-300.026000
2112019-09-300.032000
2122024-08-300.054000
2132001-06-290.054000
2142004-09-300.030000
2152004-11-300.031000
2162017-07-310.029000
2172018-06-290.031000
2182022-08-310.036000
2192003-12-310.030000
2202005-03-310.036000
2212010-12-290.014000
2222011-07-290.032000
2232013-09-300.028000
2242021-06-300.023000
2252005-09-300.041000
2262005-12-300.047000
2272010-12-310.034000
2282020-04-300.026000
2292023-12-290.057000
2302012-08-310.036000
2312017-10-310.030000
2322026-05-290.040000
2332015-01-300.028000
2342015-10-300.031000
2352022-03-310.024000
2362003-08-290.031000
2372014-08-290.029000
2382016-06-300.030000
2392019-10-310.030000
2402019-12-190.017000
2412023-02-280.046000
2422007-11-300.052000
2432016-08-310.032000
2442020-08-310.026000
2452005-08-310.042000
2462010-02-260.032000
2472010-05-280.035000
2482021-04-300.025000
2492025-06-300.047000
2502021-10-290.023000
2512003-03-310.037000
2522007-12-310.054000
2532008-01-310.052000
2542010-09-300.031000
2552011-03-310.031000
2562018-02-280.028000
2572002-03-280.038000
2582005-11-300.044000
2592013-11-290.028000
2602011-06-300.032000
2612015-03-310.031000
2622005-07-290.042000
2632022-06-300.028000
2642024-11-290.050000
2652025-01-310.050000
2662011-11-300.031000
2672014-10-310.028000
2682001-03-300.065000
2692001-12-310.042000
2702002-01-310.039000
2712006-07-310.053000
2722007-07-310.053000
2732008-05-300.039000
2742017-01-310.028000
2752024-10-310.051000
2762025-09-300.044000
2772004-12-310.033000
2782015-09-300.029000
2792016-11-300.027000
2802018-05-310.032000
2812018-08-310.032000
2822002-11-290.038000
2832005-10-310.046000
2842008-06-300.038000
2852008-08-290.040000
2862009-03-310.029000
2872011-09-300.032000
2882022-02-280.021000
2892003-05-300.037000
2902010-11-300.033000
2912015-06-300.029000
2922017-05-310.029000
2932020-10-300.027000
2942002-09-300.040000
2952005-02-280.033000
2962006-12-290.057000
2972011-10-310.034000
2982012-01-310.032000
2992012-07-310.034000
3002016-12-300.032000
3012023-10-310.055000
3022005-06-300.039000
3032007-06-290.052000
3042007-08-310.055000
3052014-06-300.027000
3062016-01-290.030000
3072016-07-290.030000
3082023-11-300.056000
3092001-05-310.060000
3102008-12-310.043000
3112010-06-300.035000
3122015-12-310.031000
3132020-09-300.024000