f/lsgbx-dividend.csv at bb8e39605ef99b652f313b9fbf152f26d568e613

gmp/f

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

2.5 KiB

Raw Blame History

1	Date	Dividends
2	2004-12-16	0.457000
3	2007-08-28	0.052000
4	2009-02-24	0.036000
5	2009-05-27	0.033000
6	2012-11-20	0.035000
7	1992-04-23	0.250000
8	2010-08-24	0.007000
9	2007-09-25	0.055000
10	2008-03-25	0.063000
11	2009-09-22	0.055000
12	2014-04-24	0.034000
13	2014-10-24	0.033000
14	2017-01-30	0.010000
15	2009-10-27	0.057000
16	2011-07-26	0.048000
17	2012-06-22	0.038000
18	2013-08-27	0.036000
19	1998-12-08	0.990000
20	1999-11-23	0.426000
21	2009-08-25	0.028000
22	2010-12-09	0.172000
23	2013-05-28	0.037000
24	2021-12-17	0.723000
25	1996-12-30	0.680000
26	2007-07-24	0.350000
27	2018-12-14	0.106000
28	2008-09-23	0.063000
29	2008-11-25	0.064000
30	2011-02-22	0.051000
31	1991-10-24	0.050000
32	2009-12-11	0.105000
33	2012-08-23	0.034000
34	2012-10-22	0.038000
35	1992-07-23	0.250000
36	1994-07-12	0.140000
37	2013-03-26	0.036000
38	2014-03-25	0.035000
39	2016-10-25	0.018000
40	2025-12-16	0.017000
41	1991-12-27	0.250000
42	2011-03-22	0.054000
43	2014-11-24	0.032000
44	2008-05-27	0.061000
45	2014-12-16	0.221000
46	2009-04-28	0.017000
47	2013-11-26	0.036000
48	2014-07-25	0.037000
49	2015-11-30	0.020000
50	2016-01-28	0.016000
51	2010-11-23	0.047000
52	2014-02-24	0.031000
53	1992-12-29	0.020000
54	1993-10-21	0.050000
55	2007-11-27	0.056000
56	2012-02-22	0.048000
57	1993-07-22	0.060000
58	2000-11-21	0.042000
59	2012-07-23	0.033000
60	2013-06-25	0.031000
61	2012-09-21	0.013000
62	2014-01-28	0.033000
63	2014-05-23	0.035000
64	2014-08-25	0.034000
65	1994-04-25	0.140000
66	1999-12-07	0.673000
67	2008-01-29	0.046000
68	2012-01-23	0.037000
69	2013-07-26	0.034000
70	2019-12-16	0.187000
71	2000-12-05	0.598000
72	2007-12-14	0.165000
73	2009-03-24	0.031000
74	1993-12-29	0.250000
75	2009-01-27	0.047000
76	2009-11-24	0.054000
77	1992-10-22	0.250000
78	2010-06-22	0.030000
79	2011-06-21	0.048000
80	2016-12-16	0.035000
81	2014-06-23	0.036000
82	2002-12-24	0.619000
83	2009-07-28	0.059000
84	2010-07-27	0.010000
85	2010-10-26	0.051000
86	2011-09-20	0.051000
87	2013-02-25	0.035000
88	2013-10-28	0.040000
89	1996-09-13	0.067000
90	2010-03-23	0.050000
91	2007-10-30	0.055000
92	2008-02-26	0.055000
93	2010-05-26	0.050000
94	2011-08-23	0.050000
95	2003-12-23	0.605000
96	2005-12-16	0.776000
97	2012-05-23	0.041000
98	2016-11-28	0.013000
99	2004-11-23	0.050000
100	2008-06-24	0.063000
101	2008-10-28	0.061000
102	2011-10-25	0.053000
103	2008-04-28	0.059000
104	2008-07-29	0.065000
105	2011-05-24	0.050000
106	1993-04-22	0.130000
107	2008-08-26	0.062000
108	2012-04-23	0.046000
109	2013-01-28	0.032000
110	2014-09-24	0.022000
111	2020-12-16	0.909000
112	2009-06-23	0.016000
113	2011-04-26	0.051000
114	2011-11-22	0.055000
115	2012-03-23	0.044000
116	2010-09-21	0.050000
117	2013-12-16	0.316000
118	1997-12-29	0.807000
119	2006-12-15	0.447000
120	2008-12-12	0.448000
121	2010-01-26	0.053000
122	2011-12-14	0.208000
123	2013-04-25	0.034000
124	2013-09-25	0.033000
125	2017-12-15	0.036000
126	1995-12-28	0.775000
127	2010-02-23	0.052000
128	2011-01-25	0.049000
129	2012-12-17	0.053000

2.5 KiB Raw Blame History

2.5 KiB

Raw Blame History