f/fguax-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	2018-05-31	0.011000
3	2020-05-29	0.004000
4	2020-10-30	0.001000
5	2005-07-29	0.120000
6	2009-11-30	0.002000
7	2011-11-30	0.001000
8	2011-12-30	0.001000
9	2024-06-28	0.044000
10	2025-04-30	0.037000
11	2003-09-30	0.035000
12	2006-07-31	0.039000
13	2006-10-31	0.038000
14	2023-09-29	0.044000
15	2017-03-31	0.002000
16	2018-02-28	0.006000
17	2018-04-30	0.012000
18	2019-12-31	0.013000
19	2004-07-30	0.040000
20	2009-12-31	0.002000
21	2010-02-26	0.001000
22	2012-02-29	0.002000
23	2025-12-31	0.034000
24	2026-01-30	0.033000
25	2026-06-30	0.031000
26	2022-07-29	0.012000
27	2023-02-28	0.033000
28	2023-12-29	0.045000
29	2024-05-31	0.045000
30	2005-05-31	0.105000
31	2024-04-30	0.045000
32	2024-08-30	0.045000
33	2025-05-30	0.037000
34	2022-06-30	0.008000
35	2023-10-31	0.046000
36	2024-09-30	0.044000
37	2026-05-29	0.031000
38	2003-12-31	0.030000
39	2008-12-31	0.012000
40	2011-09-30	0.001000
41	2018-11-30	0.013000
42	2023-11-30	0.044000
43	2016-12-06	0.001000
44	2017-09-29	0.006000
45	2020-01-31	0.013000
46	2022-03-31	0.001000
47	2020-09-30	0.001000
48	2005-09-30	0.025000
49	2010-01-29	0.001000
50	2017-10-31	0.004000
51	2017-12-29	0.010000
52	2019-11-29	0.011000
53	2020-03-31	0.007000
54	2020-08-31	0.001000
55	2024-10-31	0.043000
56	2006-08-31	0.038000
57	2011-10-31	0.001000
58	2017-11-30	0.004000
59	2019-08-30	0.015000
60	2019-07-31	0.016000
61	2023-07-31	0.042000
62	2005-08-31	0.120000
63	2006-06-30	0.036000
64	2007-03-30	0.039000
65	2010-07-30	0.001000
66	2024-01-31	0.045000
67	2025-06-30	0.037000
68	2009-03-31	0.008000
69	2009-07-31	0.002000
70	2016-12-30	0.001000
71	2018-07-31	0.009000
72	2022-08-31	0.016000
73	2003-05-30	0.030000
74	2003-11-28	0.030000
75	2004-04-30	0.035000
76	2017-08-31	0.005000
77	2012-05-31	0.002000
78	2025-11-28	0.035000
79	2005-04-29	0.090000
80	2009-01-30	0.011000
81	2010-06-30	0.001000
82	2011-08-31	0.001000
83	2022-12-30	0.031000
84	2003-08-29	0.030000
85	2009-08-31	0.003000
86	2016-07-29	0.002000
87	2022-05-31	0.003000
88	2009-10-30	0.003000
89	2011-07-29	0.002000
90	2017-05-31	0.002000
91	2018-01-31	0.006000
92	2003-03-31	0.030000
93	2005-12-30	0.030000
94	2006-02-28	0.030000
95	2007-05-31	0.039000
96	2020-12-31	0.001000
97	2024-02-29	0.043000
98	2025-02-28	0.036000
99	2020-11-30	0.001000
100	2023-01-31	0.033000
101	2004-03-31	0.030000
102	2008-09-30	0.020000
103	2017-02-28	0.002000
104	2017-04-28	0.004000
105	2018-12-31	0.015000
106	2023-05-31	0.043000
107	2007-06-29	0.039000
108	2007-11-30	0.037000
109	2008-01-31	0.034000
110	2012-06-29	0.001000
111	2017-07-31	0.007000
112	2018-09-28	0.013000
113	2019-03-29	0.017000
114	2003-04-30	0.035000
115	2006-09-29	0.038000
116	2008-07-31	0.018000
117	2008-08-29	0.020000
118	2018-08-31	0.012000
119	2024-07-31	0.045000
120	2024-03-28	0.045000
121	2004-02-27	0.030000
122	2005-03-31	0.085000
123	2008-10-31	0.018000
124	2020-02-28	0.011000
125	2025-03-31	0.037000
126	2004-08-31	0.045000
127	2005-10-31	0.027000
128	2008-11-28	0.016000
129	2023-08-31	0.045000
130	2006-11-30	0.038000
131	2006-12-29	0.039000
132	2022-04-29	0.001000
133	2023-03-31	0.036000
134	2007-10-31	0.038000
135	2021-02-26	0.001000
136	2025-08-29	0.037000
137	2004-01-30	0.030000
138	2004-10-29	0.055000
139	2004-11-30	0.055000
140	2005-01-31	0.080000
141	2020-07-31	0.002000
142	2007-01-31	0.040000
143	2007-12-31	0.036000
144	2018-10-31	0.014000
145	2019-04-30	0.016000
146	2026-03-31	0.032000
147	2006-04-28	0.034000
148	2007-09-28	0.039000
149	2024-12-31	0.040000
150	2026-02-27	0.031000
151	2018-06-29	0.010000
152	2019-01-31	0.015000
153	2023-06-30	0.041000
154	2005-06-30	0.110000
155	2006-01-31	0.030000
156	2011-05-31	0.001000
157	2018-03-29	0.011000
158	2004-05-28	0.030000
159	2004-06-30	0.035000
160	2004-12-31	0.070000
161	2005-02-28	0.080000
162	2019-05-31	0.017000
163	2022-11-30	0.027000
164	2026-04-30	0.031000
165	2009-04-30	0.006000
166	2009-05-29	0.005000
167	2010-03-31	0.001000
168	2020-04-30	0.005000
169	2006-03-31	0.032000
170	2006-05-31	0.035000
171	2007-04-30	0.039000
172	2008-05-30	0.021000
173	2024-11-29	0.040000
174	2012-01-31	0.001000
175	2019-06-28	0.016000
176	2019-09-30	0.014000
177	2025-07-31	0.037000
178	2003-10-31	0.035000
179	2007-07-31	0.039000
180	2011-04-29	0.001000
181	2011-06-30	0.002000
182	2012-04-30	0.003000
183	2012-08-31	0.001000
184	2017-06-30	0.003000
185	2019-10-31	0.012000
186	2004-09-30	0.050000
187	2005-11-30	0.032000
188	2007-08-31	0.039000
189	2012-03-30	0.003000
190	2025-01-31	0.039000
191	2025-09-30	0.037000
192	2022-10-31	0.022000
193	2023-04-28	0.040000
194	2025-10-31	0.037000
195	2008-03-31	0.026000
196	2009-09-30	0.003000
197	2019-02-28	0.015000
198	2020-06-30	0.004000
199	2012-09-28	0.001000
200	2021-12-07	0.001000
201	2008-02-29	0.029000
202	2008-04-30	0.024000
203	2008-06-30	0.021000
204	2009-06-30	0.003000
205	2007-02-28	0.038000
206	2009-02-27	0.008000
207	2022-09-30	0.018000
208	2026-07-31	0.032000

4.1 KiB Raw Blame History

4.1 KiB

Raw Blame History