f/cmgux-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

5.2 KiB

Raw Blame History

1	Date	Dividends
2	2025-02-28	0.033000
3	2006-03-31	0.035000
4	2008-09-30	0.030000
5	2008-10-31	0.028000
6	2021-09-30	0.004000
7	2024-01-31	0.034000
8	2011-10-31	0.007000
9	2023-04-28	0.027000
10	2010-11-30	0.019000
11	2014-11-28	0.002000
12	2017-09-29	0.009000
13	2021-04-30	0.006000
14	2024-11-29	0.039000
15	2006-06-30	0.038000
16	2011-08-31	0.009000
17	2014-06-30	0.003000
18	2017-03-31	0.009000
19	2007-09-28	0.041000
20	2009-07-31	0.022000
21	2015-02-27	0.004000
22	2018-04-30	0.014000
23	2018-05-31	0.014000
24	2024-09-30	0.043000
25	2008-04-30	0.032000
26	2014-01-31	0.002000
27	2020-07-31	0.011000
28	2021-02-26	0.006000
29	2024-07-31	0.039000
30	2005-03-31	0.035000
31	2011-02-28	0.017000
32	2012-06-29	0.008000
33	2013-11-29	0.004000
34	2014-12-31	0.002000
35	2005-08-31	0.032000
36	2008-05-30	0.032000
37	2012-10-31	0.007000
38	2020-05-29	0.014000
39	2021-08-31	0.004000
40	2011-03-31	0.017000
41	2015-08-31	0.001000
42	2019-03-29	0.020000
43	2021-11-30	0.004000
44	2005-02-28	0.037000
45	2016-07-29	0.007000
46	2007-05-31	0.040000
47	2013-06-28	0.005000
48	2022-06-30	0.007000
49	2024-04-30	0.033000
50	2004-09-30	0.026000
51	2015-05-29	0.003000
52	2023-08-31	0.031000
53	2026-06-30	0.031000
54	2018-01-31	0.012000
55	2018-06-29	0.015000
56	2007-04-30	0.039000
57	2007-10-31	0.042000
58	2011-04-29	0.015000
59	2011-05-31	0.014000
60	2011-07-29	0.012000
61	2017-07-31	0.010000
62	2020-11-30	0.007000
63	2022-10-31	0.017000
64	2023-02-28	0.022000
65	2010-10-29	0.021000
66	2011-09-30	0.007000
67	2011-12-30	0.015000
68	2013-04-30	0.006000
69	2015-11-30	0.004000
70	2017-06-30	0.009000
71	2005-05-31	0.030000
72	2006-05-31	0.037000
73	2014-08-29	0.003000
74	2016-03-31	0.006000
75	2017-01-31	0.008000
76	2006-07-31	0.036000
77	2012-02-29	0.007000
78	2013-12-31	0.003000
79	2019-01-31	0.019000
80	2019-02-28	0.018000
81	2008-08-29	0.031000
82	2010-03-31	0.018000
83	2016-12-30	0.008000
84	2004-07-30	0.029000
85	2005-01-31	0.039000
86	2016-10-31	0.007000
87	2021-06-30	0.004000
88	2015-01-30	0.002000
89	2017-04-28	0.009000
90	2020-12-31	0.008000
91	2022-02-28	0.003000
92	2025-09-30	0.035000
93	2005-04-29	0.031000
94	2009-09-30	0.022000
95	2012-08-31	0.008000
96	2017-02-28	0.007000
97	2021-10-29	0.004000
98	2022-01-31	0.003000
99	2005-10-31	0.032000
100	2007-01-31	0.039000
101	2012-03-30	0.005000
102	2015-10-30	0.005000
103	2017-05-31	0.009000
104	2022-07-29	0.011000
105	2004-08-31	0.024000
106	2007-07-31	0.041000
107	2013-08-30	0.005000
108	2015-09-30	0.002000
109	2019-06-28	0.019000
110	2020-06-30	0.011000
111	2022-03-31	0.003000
112	2023-09-29	0.031000
113	2005-12-30	0.035000
114	2009-05-29	0.021000
115	2017-08-31	0.010000
116	2021-01-29	0.007000
117	2022-12-30	0.022000
118	2004-05-28	0.025000
119	2009-03-31	0.024000
120	2014-05-30	0.003000
121	2023-06-30	0.028000
122	2026-07-31	0.033000
123	2005-06-30	0.030000
124	2007-02-28	0.038000
125	2014-03-31	0.002000
126	2015-07-31	0.001000
127	2018-02-28	0.011000
128	2018-07-31	0.016000
129	2010-02-26	0.018000
130	2010-12-31	0.019000
131	2016-02-29	0.005000
132	2022-11-30	0.019000
133	2025-04-30	0.035000
134	2004-06-30	0.031000
135	2009-06-30	0.023000
136	2012-12-31	0.007000
137	2007-12-31	0.038000
138	2014-04-30	0.003000
139	2023-12-29	0.037000
140	2004-10-29	0.034000
141	2012-04-30	0.007000
142	2015-06-30	0.002000
143	2015-12-31	0.005000
144	2026-01-30	0.032000
145	2014-07-31	0.005000
146	2015-03-31	0.003000
147	2019-11-29	0.018000
148	2023-01-31	0.023000
149	2004-04-30	0.018000
150	2005-07-29	0.030000
151	2013-02-28	0.004000
152	2016-06-30	0.006000
153	2026-04-30	0.031000
154	2006-09-29	0.038000
155	2009-02-27	0.023000
156	2010-05-28	0.020000
157	2018-12-31	0.018000
158	2020-02-28	0.015000
159	2020-03-31	0.016000
160	2007-03-30	0.040000
161	2016-01-29	0.005000
162	2016-08-31	0.007000
163	2019-07-31	0.020000
164	2024-12-31	0.039000
165	2004-11-30	0.036000
166	2007-06-29	0.040000
167	2013-10-31	0.002000
168	2017-12-29	0.011000
169	2025-08-29	0.036000
170	2006-10-31	0.038000
171	2018-10-31	0.017000
172	2023-07-31	0.030000
173	2026-02-27	0.027000
174	2013-03-28	0.004000
175	2022-08-31	0.014000
176	2024-02-29	0.031000
177	2024-10-31	0.043000
178	2023-05-31	0.028000
179	2024-06-28	0.037000
180	2007-11-30	0.039000
181	2012-01-31	0.007000
182	2012-09-28	0.007000
183	2021-12-31	0.003000
184	2022-04-29	0.004000
185	2022-05-31	0.006000
186	2025-05-30	0.037000
187	2004-03-31	0.010000
188	2021-03-31	0.006000
189	2021-05-28	0.005000
190	2009-12-31	0.022000
191	2019-10-31	0.018000
192	2022-09-30	0.015000
193	2008-01-31	0.038000
194	2026-03-31	0.033000
195	2023-11-30	0.034000
196	2006-04-28	0.035000
197	2008-06-30	0.031000
198	2010-07-30	0.022000
199	2016-04-29	0.006000
200	2017-11-30	0.010000
201	2018-08-31	0.016000
202	2012-05-31	0.008000
203	2013-05-31	0.005000
204	2024-08-30	0.042000
205	2025-07-31	0.036000
206	2008-11-28	0.028000
207	2025-12-31	0.038000
208	2005-11-30	0.033000
209	2006-01-31	0.034000
210	2012-07-31	0.008000
211	2012-11-30	0.007000
212	2020-09-30	0.008000
213	2023-10-31	0.033000
214	2009-04-30	0.023000
215	2025-01-31	0.037000
216	2008-07-31	0.030000
217	2010-06-30	0.022000
218	2013-07-31	0.005000
219	2018-11-30	0.017000
220	2023-03-31	0.027000
221	2006-02-28	0.035000
222	2009-10-30	0.022000
223	2020-04-30	0.014000
224	2006-12-29	0.038000
225	2020-08-31	0.009000
226	2008-02-29	0.035000
227	2018-09-28	0.016000
228	2016-09-30	0.007000
229	2026-05-29	0.031000
230	2008-03-31	0.033000
231	2009-11-30	0.022000
232	2013-01-31	0.005000
233	2019-08-30	0.020000
234	2019-12-31	0.018000
235	2016-05-31	0.007000
236	2019-09-30	0.018000
237	2021-07-30	0.004000
238	2006-08-31	0.038000
239	2011-06-30	0.013000
240	2013-09-30	0.002000
241	2024-03-28	0.034000
242	2024-05-31	0.035000
243	2015-04-30	0.004000
244	2017-10-31	0.010000
245	2018-03-29	0.013000
246	2019-05-31	0.020000
247	2025-03-31	0.038000
248	2025-06-30	0.036000
249	2025-11-28	0.035000
250	2009-01-30	0.026000
251	2009-08-31	0.023000
252	2010-08-31	0.023000
253	2010-09-30	0.023000
254	2016-11-30	0.007000
255	2020-01-31	0.017000
256	2004-12-31	0.037000
257	2006-11-30	0.038000
258	2007-08-31	0.041000
259	2014-09-30	0.004000
260	2005-09-30	0.032000
261	2011-11-30	0.007000
262	2014-02-28	0.002000
263	2019-04-30	0.019000
264	2008-12-31	0.045000
265	2010-01-29	0.020000
266	2011-01-31	0.018000
267	2014-10-31	0.003000
268	2020-10-30	0.008000
269	2025-10-31	0.036000

5.2 KiB Raw Blame History

5.2 KiB

Raw Blame History