f/hymax-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

5.1 KiB

Raw Blame History

1	Date	Dividends
2	2014-04-30	0.047000
3	2018-05-31	0.039000
4	2024-04-30	0.042000
5	2025-03-31	0.040000
6	2009-05-29	0.063000
7	2009-08-31	0.065000
8	2014-03-31	0.046000
9	2009-10-30	0.056000
10	2011-09-30	0.060000
11	2024-01-31	0.042000
12	2025-04-30	0.043000
13	2025-06-30	0.042000
14	2006-05-31	0.063000
15	2014-09-30	0.045000
16	2019-08-30	0.038000
17	2018-04-30	0.039000
18	2020-01-31	0.037000
19	2015-06-30	0.048000
20	2017-01-31	0.044000
21	2017-12-29	0.040000
22	2017-11-30	0.040000
23	2023-05-31	0.036000
24	2026-02-27	0.043000
25	2008-08-29	0.062000
26	2016-03-31	0.044000
27	2016-06-30	0.045000
28	2011-10-31	0.054000
29	2016-10-31	0.041000
30	2013-06-28	0.046000
31	2013-09-30	0.047000
32	2013-10-31	0.047000
33	2025-01-31	0.050000
34	2025-10-31	0.043000
35	2006-10-31	0.071000
36	2008-01-31	0.061000
37	2010-08-31	0.055000
38	2007-07-31	0.061000
39	2017-07-31	0.040000
40	2020-06-30	0.036000
41	2008-04-30	0.060000
42	2010-11-30	0.055000
43	2023-08-31	0.036000
44	2023-02-28	0.036000
45	2026-03-31	0.044000
46	2005-04-29	0.069000
47	2009-11-30	0.056000
48	2017-09-29	0.036000
49	2022-02-28	0.031000
50	2011-12-30	0.049000
51	2017-03-31	0.041000
52	2019-05-31	0.040000
53	2016-05-31	0.044000
54	2017-08-31	0.034000
55	2022-01-31	0.031000
56	2024-09-30	0.039000
57	2007-05-31	0.061000
58	2022-09-30	0.033000
59	2024-06-28	0.039000
60	2012-03-30	0.052000
61	2012-04-30	0.052000
62	2018-10-31	0.040000
63	2016-02-29	0.045000
64	2019-07-31	0.039000
65	2005-08-31	0.066000
66	2007-02-28	0.061000
67	2015-01-30	0.044000
68	2013-02-28	0.047000
69	2013-12-31	0.047000
70	2015-08-31	0.045000
71	2018-01-31	0.038000
72	2019-04-30	0.041000
73	2007-11-30	0.063000
74	2009-02-27	0.059000
75	2009-06-30	0.059000
76	2016-11-30	0.042000
77	2018-02-28	0.040000
78	2020-07-31	0.036000
79	2007-01-31	0.063000
80	2010-01-29	0.055000
81	2012-01-31	0.052000
82	2014-11-28	0.042000
83	2021-01-29	0.035000
84	2005-06-30	0.064000
85	2005-07-29	0.069000
86	2011-03-31	0.057000
87	2011-11-30	0.054000
88	2008-03-31	0.067000
89	2010-05-28	0.056000
90	2011-06-30	0.055000
91	2021-04-30	0.034000
92	2016-04-29	0.044000
93	2022-07-29	0.033000
94	2015-11-30	0.045000
95	2019-01-31	0.040000
96	2023-10-31	0.039000
97	2024-05-31	0.039000
98	2026-01-30	0.044000
99	2006-09-29	0.064000
100	2012-06-29	0.049000
101	2013-05-31	0.046000
102	2010-06-30	0.056000
103	2020-04-30	0.037000
104	2024-12-31	0.040000
105	2006-12-29	0.065000
106	2008-10-31	0.061000
107	2008-12-31	0.061000
108	2007-03-30	0.065000
109	2023-11-30	0.038000
110	2021-08-31	0.031000
111	2023-09-29	0.037000
112	2005-05-31	0.071000
113	2012-10-31	0.047000
114	2013-08-30	0.048000
115	2005-12-30	0.070000
116	2010-09-30	0.055000
117	2019-10-31	0.038000
118	2020-08-31	0.035000
119	2022-06-30	0.034000
120	2024-07-31	0.040000
121	2024-10-31	0.039000
122	2008-09-30	0.066000
123	2009-04-30	0.059000
124	2016-09-30	0.041000
125	2024-11-29	0.039000
126	2017-06-30	0.041000
127	2018-03-29	0.039000
128	2022-04-29	0.034000
129	2014-08-29	0.045000
130	2020-09-30	0.036000
131	2022-05-31	0.032000
132	2010-04-30	0.056000
133	2025-08-29	0.042000
134	2015-12-31	0.045000
135	2019-09-30	0.038000
136	2021-02-26	0.035000
137	2011-01-31	0.059000
138	2012-12-31	0.047000
139	2014-05-30	0.046000
140	2013-01-31	0.046000
141	2018-08-31	0.039000
142	2025-05-30	0.041000
143	2025-09-30	0.042000
144	2026-06-30	0.045000
145	2005-03-31	0.071000
146	2006-02-28	0.065000
147	2010-02-26	0.055000
148	2008-07-31	0.060000
149	2023-01-31	0.035000
150	2020-03-31	0.037000
151	2024-03-28	0.037000
152	2026-04-30	0.043000
153	2010-03-31	0.055000
154	2011-08-31	0.054000
155	2020-11-30	0.036000
156	2013-11-29	0.047000
157	2021-06-30	0.033000
158	2025-02-28	0.040000
159	2006-03-31	0.063000
160	2019-02-28	0.047000
161	2020-10-30	0.036000
162	2021-10-29	0.031000
163	2024-08-30	0.039000
164	2025-12-31	0.044000
165	2009-01-30	0.068000
166	2020-02-28	0.037000
167	2020-05-29	0.037000
168	2018-06-29	0.040000
169	2018-12-31	0.041000
170	2023-04-28	0.035000
171	2006-06-30	0.064000
172	2007-04-30	0.064000
173	2011-04-29	0.056000
174	2007-12-31	0.065000
175	2015-07-31	0.046000
176	2019-12-31	0.038000
177	2005-11-30	0.064000
178	2012-08-31	0.048000
179	2016-12-30	0.041000
180	2012-02-29	0.052000
181	2014-02-28	0.046000
182	2012-11-30	0.047000
183	2005-09-30	0.071000
184	2010-10-29	0.055000
185	2015-03-31	0.046000
186	2007-09-28	0.063000
187	2014-01-31	0.048000
188	2014-06-30	0.044000
189	2021-07-30	0.031000
190	2005-01-31	0.075000
191	2022-11-30	0.037000
192	2025-11-28	0.042000
193	2023-06-30	0.045000
194	2022-12-30	0.038000
195	2014-07-31	0.045000
196	2021-09-30	0.031000
197	2023-07-31	0.036000
198	2006-07-31	0.069000
199	2009-07-31	0.066000
200	2013-03-28	0.046000
201	2017-10-31	0.039000
202	2007-10-31	0.061000
203	2009-12-31	0.051000
204	2010-12-31	0.056000
205	2015-05-29	0.044000
206	2019-03-29	0.041000
207	2023-12-29	0.040000
208	2005-10-31	0.070000
209	2008-11-28	0.061000
210	2012-05-31	0.053000
211	2017-02-28	0.042000
212	2026-05-29	0.043000
213	2008-02-29	0.060000
214	2013-07-31	0.047000
215	2014-12-31	0.047000
216	2016-08-31	0.041000
217	2022-10-31	0.034000
218	2026-07-31	0.042000
219	2005-02-28	0.067000
220	2011-02-28	0.056000
221	2011-07-29	0.055000
222	2022-03-31	0.032000
223	2006-01-31	0.073000
224	2008-06-30	0.067000
225	2019-11-29	0.038000
226	2007-06-29	0.060000
227	2010-07-30	0.056000
228	2012-09-28	0.049000
229	2016-01-29	0.047000
230	2016-07-29	0.045000
231	2004-12-31	0.004000
232	2006-08-31	0.062000
233	2006-11-30	0.061000
234	2018-07-31	0.039000
235	2019-06-28	0.041000
236	2021-12-31	0.033000
237	2006-04-28	0.063000
238	2009-03-31	0.067000
239	2013-04-30	0.046000
240	2017-04-28	0.042000
241	2022-08-31	0.032000
242	2021-03-31	0.034000
243	2014-10-31	0.044000
244	2015-02-27	0.044000
245	2015-09-30	0.045000
246	2021-05-28	0.039000
247	2024-02-29	0.042000
248	2017-05-31	0.042000
249	2018-11-30	0.040000
250	2020-12-31	0.035000
251	2015-04-30	0.044000
252	2021-11-30	0.031000
253	2025-07-31	0.042000
254	2007-08-31	0.065000
255	2009-09-30	0.059000
256	2012-07-31	0.048000
257	2018-09-28	0.039000
258	2023-03-31	0.036000
259	2008-05-30	0.064000
260	2011-05-31	0.055000
261	2015-10-30	0.045000

5.1 KiB Raw Blame History

5.1 KiB

Raw Blame History