f/cgo-dividend.csv at 19b33d5a18a5f2c124bf1e0a7de3acea9d711f4b

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

4.9 KiB

Raw Blame History

1	Date	Dividends
2	2014-12-08	0.100000
3	2015-08-07	0.100000
4	2017-05-08	0.100000
5	2019-03-11	0.100000
6	2025-06-12	0.080000
7	2007-10-09	0.110000
8	2014-07-08	0.100000
9	2024-12-13	0.080000
10	2025-09-15	0.080000
11	2011-04-08	0.100000
12	2018-02-09	0.100000
13	2012-12-07	0.100000
14	2013-07-08	0.100000
15	2015-12-08	0.100000
16	2007-07-10	0.110000
17	2009-08-06	0.100000
18	2023-04-13	0.080000
19	2007-05-09	0.110000
20	2015-02-06	0.100000
21	2019-04-11	0.100000
22	2023-12-11	0.080000
23	2023-05-11	0.080000
24	2007-09-11	0.110000
25	2010-12-29	0.100000
26	2012-07-09	0.100000
27	2019-06-13	0.100000
28	2020-07-10	0.100000
29	2024-05-13	0.080000
30	2009-04-08	0.100000
31	2012-04-09	0.100000
32	2013-12-27	0.100000
33	2014-03-07	0.100000
34	2022-10-13	0.080000
35	2025-12-12	0.080000
36	2026-07-14	0.090000
37	2012-09-07	0.100000
38	2013-08-08	0.100000
39	2021-09-13	0.100000
40	2022-07-12	0.100000
41	2006-10-10	0.088000
42	2020-08-13	0.100000
43	2017-08-08	0.100000
44	2020-09-11	0.100000
45	2025-07-14	0.080000
46	2014-05-08	0.100000
47	2014-11-06	0.100000
48	2011-12-28	0.100000
49	2012-10-09	0.100000
50	2015-04-08	0.100000
51	2007-12-27	0.115000
52	2008-12-29	0.156000
53	2011-09-08	0.100000
54	2012-05-08	0.100000
55	2025-10-15	0.080000
56	2025-11-14	0.080000
57	2006-09-07	0.088000
58	2007-08-09	0.110000
59	2017-03-08	0.100000
60	2018-11-09	0.100000
61	2010-07-08	0.100000
62	2012-02-08	0.100000
63	2011-11-08	0.100000
64	2018-10-11	0.100000
65	2022-06-10	0.100000
66	2023-02-10	0.080000
67	2023-10-12	0.080000
68	2006-08-09	0.088000
69	2008-10-09	0.115000
70	2017-11-09	0.100000
71	2018-04-12	0.100000
72	2006-12-27	0.088000
73	2016-06-08	0.100000
74	2021-06-11	0.100000
75	2010-06-08	0.100000
76	2011-05-09	0.100000
77	2020-12-30	0.100000
78	2021-12-13	0.100000
79	2023-09-11	0.080000
80	2019-07-11	0.100000
81	2020-10-13	0.100000
82	2014-09-08	0.100000
83	2017-06-08	0.100000
84	2007-06-07	0.110000
85	2007-11-07	0.110000
86	2014-02-07	0.100000
87	2018-12-28	0.100000
88	2025-04-11	0.080000
89	2009-05-07	0.100000
90	2017-04-07	0.100000
91	2013-11-07	0.100000
92	2016-02-08	0.100000
93	2024-07-12	0.080000
94	2025-12-30	0.080000
95	2018-08-10	0.100000
96	2019-08-09	0.100000
97	2020-06-11	0.100000
98	2021-03-11	0.100000
99	2023-03-13	0.080000
100	2010-11-08	0.100000
101	2013-10-08	0.100000
102	2020-11-12	0.100000
103	2021-10-08	0.100000
104	2016-08-08	0.100000
105	2017-12-11	0.100000
106	2008-11-10	0.100000
107	2014-04-08	0.100000
108	2017-10-10	0.100000
109	2020-02-13	0.100000
110	2020-04-13	0.100000
111	2022-04-12	0.100000
112	2013-09-09	0.100000
113	2017-12-28	0.100000
114	2023-08-10	0.080000
115	2026-03-13	0.080000
116	2026-05-14	0.080000
117	2006-07-11	0.088000
118	2011-10-06	0.100000
119	2006-03-09	0.075000
120	2009-12-29	0.100000
121	2009-07-08	0.100000
122	2023-06-09	0.080000
123	2008-02-07	0.115000
124	2015-07-08	0.100000
125	2021-04-13	0.100000
126	2010-05-10	0.100000
127	2013-06-07	0.100000
128	2013-03-08	0.100000
129	2016-03-08	0.100000
130	2024-10-15	0.080000
131	2025-03-13	0.080000
132	2025-08-14	0.080000
133	2007-04-10	0.098000
134	2012-12-27	0.100000
135	2012-06-08	0.100000
136	2013-12-09	0.100000
137	2015-11-06	0.100000
138	2008-03-11	0.115000
139	2011-02-08	0.100000
140	2020-12-11	0.100000
141	2019-02-11	0.100000
142	2019-09-13	0.100000
143	2015-09-08	0.100000
144	2016-05-09	0.100000
145	2016-12-28	0.100000
146	2022-12-09	0.080000
147	2025-02-13	0.080000
148	2008-05-08	0.115000
149	2012-03-08	0.100000
150	2020-05-12	0.100000
151	2021-12-30	0.100000
152	2024-12-30	0.080000
153	2013-02-08	0.100000
154	2016-12-08	0.100000
155	2016-11-07	0.100000
156	2018-05-11	0.100000
157	2021-11-10	0.100000
158	2024-04-11	0.080000
159	2026-06-12	0.080000
160	2006-04-11	0.075000
161	2009-02-06	0.100000
162	2015-10-07	0.100000
163	2019-12-12	0.100000
164	2019-12-30	0.100000
165	2009-06-08	0.100000
166	2010-02-05	0.100000
167	2010-12-03	0.108000
168	2014-10-07	0.100000
169	2014-12-29	0.100000
170	2022-12-29	0.080000
171	2023-12-28	0.080000
172	2008-04-09	0.115000
173	2010-04-09	0.100000
174	2017-07-07	0.100000
175	2023-07-13	0.080000
176	2013-04-08	0.100000
177	2016-09-08	0.100000
178	2018-09-14	0.100000
179	2022-09-12	0.100000
180	2022-11-10	0.080000
181	2026-04-14	0.080000
182	2008-06-10	0.115000
183	2014-08-08	0.100000
184	2017-09-11	0.100000
185	2010-03-09	0.100000
186	2015-06-08	0.100000
187	2021-02-11	0.100000
188	2024-09-13	0.080000
189	2026-02-13	0.080000
190	2006-02-09	0.075000
191	2016-07-08	0.100000
192	2012-08-08	0.100000
193	2014-06-09	0.100000
194	2019-11-08	0.100000
195	2022-02-11	0.100000
196	2024-03-13	0.080000
197	2024-11-13	0.080000
198	2005-12-28	0.100000
199	2009-03-09	0.100000
200	2026-08-14	0.090000
201	2025-05-13	0.080000
202	2008-08-07	0.115000
203	2009-10-07	0.100000
204	2009-09-08	0.100000
205	2015-03-09	0.100000
206	2022-08-11	0.100000
207	2011-06-08	0.100000
208	2024-08-09	0.080000
209	2008-12-04	0.100000
210	2010-09-08	0.100000
211	2009-11-06	0.100000
212	2010-08-06	0.100000
213	2024-02-09	0.080000
214	2006-05-09	0.075000
215	2008-09-04	0.115000
216	2021-07-12	0.100000
217	2008-07-09	0.115000
218	2018-06-11	0.100000
219	2011-03-08	0.100000
220	2015-05-08	0.100000
221	2018-07-12	0.100000
222	2006-11-09	0.088000
223	2009-12-03	0.100000
224	2017-02-08	0.100000
225	2007-12-04	0.115000
226	2015-12-29	0.100000
227	2023-11-13	0.080000
228	2019-10-11	0.100000
229	2022-05-12	0.100000
230	2016-04-08	0.100000
231	2020-03-12	0.100000
232	2021-05-13	0.100000
233	2006-06-08	0.088000
234	2011-08-08	0.100000
235	2016-10-06	0.100000
236	2019-05-10	0.100000
237	2006-12-04	0.088000
238	2011-12-08	0.100000
239	2022-03-11	0.100000
240	2007-02-08	0.088000
241	2018-03-09	0.100000
242	2012-11-08	0.100000
243	2018-12-13	0.100000
244	2021-08-12	0.100000
245	2007-03-08	0.098000
246	2010-10-07	0.100000
247	2024-06-14	0.080000
248	2011-07-08	0.100000
249	2013-05-08	0.100000

4.9 KiB Raw Blame History

4.9 KiB

Raw Blame History