f/gijax-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

4.1 KiB

Raw Blame History

1	Date	Dividends
2	2010-06-30	0.180000
3	2015-09-30	0.026000
4	2017-01-31	0.022000
5	2017-10-31	0.023000
6	2021-05-28	0.018000
7	2023-05-31	0.021000
8	2024-02-29	0.034000
9	2025-05-30	0.029000
10	2018-02-28	0.022000
11	2019-07-31	0.023000
12	2022-11-30	0.023000
13	2022-12-15	0.140000
14	2023-06-30	0.020000
15	2025-09-30	0.031000
16	2006-05-31	0.234000
17	2014-02-28	0.025000
18	2014-04-30	0.030000
19	2017-04-28	0.021000
20	2024-07-31	0.033000
21	2025-03-31	0.023000
22	2026-05-29	0.034000
23	2004-11-30	0.234000
24	2017-06-30	0.024000
25	2020-09-30	0.020000
26	2022-03-31	0.018000
27	2023-11-30	0.033000
28	2009-03-31	0.253000
29	2012-05-31	0.036000
30	2013-10-31	0.033000
31	2019-09-30	0.021000
32	2020-05-29	0.022000
33	2020-12-31	0.023000
34	2024-03-28	0.033000
35	2025-06-30	0.025000
36	2019-10-31	0.023000
37	2026-02-27	0.030000
38	2005-11-30	0.234000
39	2013-07-31	0.031000
40	2015-01-30	0.022000
41	2020-12-17	0.019000
42	2023-10-31	0.029000
43	2008-06-30	0.253000
44	2014-08-29	0.030000
45	2015-02-27	0.018000
46	2017-05-31	0.024000
47	2019-03-29	0.028000
48	2019-04-30	0.026000
49	2020-02-28	0.020000
50	2021-12-31	0.018000
51	2022-12-30	0.026000
52	2024-10-31	0.028000
53	2026-06-30	0.034000
54	2008-03-31	0.253000
55	2010-09-30	0.200000
56	2020-08-31	0.020000
57	2021-09-30	0.019000
58	2022-05-31	0.018000
59	2024-11-29	0.047000
60	2014-03-31	0.031000
61	2018-12-31	0.027000
62	2019-01-31	0.025000
63	2020-06-30	0.019000
64	2023-12-29	0.038000
65	2026-07-31	0.038000
66	2016-11-30	0.020000
67	2017-12-29	0.027000
68	2018-11-30	0.028000
69	2019-05-31	0.027000
70	2020-03-31	0.023000
71	2017-02-28	0.022000
72	2020-11-30	0.019000
73	2023-07-31	0.022000
74	2025-04-30	0.021000
75	2025-07-31	0.029000
76	2007-12-31	0.253000
77	2011-06-30	0.200000
78	2015-06-30	0.027000
79	2017-09-29	0.025000
80	2018-05-31	0.025000
81	2014-07-31	0.030000
82	2022-09-30	0.028000
83	2024-01-31	0.032000
84	2024-06-28	0.030000
85	2010-12-31	0.200000
86	2016-05-31	0.022000
87	2018-10-31	0.027000
88	2020-01-31	0.022000
89	2025-02-28	0.019000
90	2009-09-30	0.180000
91	2011-03-31	0.200000
92	2012-04-30	0.026000
93	2013-04-30	0.030000
94	2016-06-30	0.022000
95	2018-03-29	0.026000
96	2025-08-29	0.032000
97	2012-07-31	0.036000
98	2012-08-31	0.032000
99	2012-10-31	0.031000
100	2013-01-31	0.033000
101	2013-08-30	0.031000
102	2013-09-30	0.032000
103	2015-05-29	0.024000
104	2016-10-31	0.020000
105	2006-02-28	0.234000
106	2007-08-31	0.234000
107	2008-12-31	0.253000
108	2009-12-31	0.180000
109	2012-09-28	0.029000
110	2014-11-28	0.023000
111	2015-03-31	0.022000
112	2015-11-30	0.024000
113	2016-08-31	0.021000
114	2017-08-31	0.023000
115	2018-01-31	0.024000
116	2021-12-16	0.058000
117	2024-08-30	0.030000
118	2005-02-28	0.234000
119	2013-06-28	0.032000
120	2016-01-29	0.019000
121	2016-07-29	0.019000
122	2023-09-29	0.024000
123	2026-03-31	0.033000
124	2007-02-28	0.234000
125	2013-11-29	0.030000
126	2014-05-30	0.030000
127	2016-02-29	0.020000
128	2017-07-31	0.023000
129	2019-02-28	0.023000
130	2020-04-30	0.023000
131	2020-10-30	0.020000
132	2021-07-30	0.019000
133	2023-04-28	0.019000
134	2025-11-28	0.030000
135	2012-11-30	0.031000
136	2014-01-31	0.032000
137	2016-12-30	0.025000
138	2018-07-31	0.025000
139	2019-06-28	0.022000
140	2025-12-31	0.034000
141	2007-11-30	0.253000
142	2013-02-28	0.027000
143	2013-12-31	0.032000
144	2018-09-28	0.023000
145	2019-11-29	0.023000
146	2021-02-26	0.020000
147	2024-05-31	0.034000
148	2024-12-31	0.033000
149	2011-09-30	0.200000
150	2013-03-28	0.031000
151	2018-06-29	0.026000
152	2025-01-31	0.030000
153	2004-08-31	0.234000
154	2010-03-31	0.180000
155	2015-12-31	0.024000
156	2017-03-31	0.025000
157	2022-02-28	0.016000
158	2022-10-31	0.022000
159	2011-12-30	0.200000
160	2014-06-30	0.027000
161	2015-08-31	0.024000
162	2018-12-20	0.037000
163	2022-04-29	0.019000
164	2014-12-31	0.024000
165	2022-08-31	0.016000
166	2008-09-30	0.253000
167	2019-08-30	0.024000
168	2021-11-30	0.017000
169	2023-01-31	0.017000
170	2005-05-31	0.234000
171	2006-11-30	0.234000
172	2009-06-30	0.180000
173	2014-09-30	0.029000
174	2018-04-30	0.024000
175	2019-12-31	0.024000
176	2021-01-29	0.019000
177	2021-04-30	0.021000
178	2022-06-30	0.016000
179	2022-07-29	0.021000
180	2023-08-31	0.022000
181	2012-06-29	0.034000
182	2012-12-31	0.032000
183	2021-03-31	0.021000
184	2013-05-31	0.032000
185	2014-10-31	0.028000
186	2016-09-30	0.021000
187	2018-08-31	0.028000
188	2020-07-31	0.021000
189	2023-03-31	0.023000
190	2026-01-30	0.034000
191	2005-08-31	0.234000
192	2015-04-30	0.022000
193	2016-03-31	0.022000
194	2016-04-29	0.022000
195	2017-11-30	0.024000
196	2021-10-29	0.017000
197	2022-01-31	0.016000
198	2023-02-28	0.020000
199	2024-04-30	0.029000
200	2024-09-30	0.026000
201	2026-04-30	0.033000
202	2006-08-31	0.234000
203	2007-05-31	0.234000
204	2015-07-31	0.028000
205	2015-10-30	0.027000
206	2021-06-30	0.019000
207	2021-08-31	0.018000
208	2025-10-31	0.035000

4.1 KiB Raw Blame History

4.1 KiB

Raw Blame History