f/mfaax-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

3.7 KiB

Raw Blame History

1	Date	Dividends
2	2012-04-30	0.008000
3	2021-08-31	0.004000
4	2017-02-28	0.010000
5	2019-03-29	0.020000
6	2020-01-31	0.014000
7	2022-08-31	0.026000
8	2024-07-31	0.034000
9	2014-03-31	0.013000
10	2016-01-29	0.011000
11	2026-01-30	0.030000
12	2026-02-27	0.029000
13	2016-12-30	0.101000
14	2023-04-28	0.028000
15	2016-02-29	0.008000
16	2016-07-29	0.019000
17	2017-12-29	0.033000
18	2019-05-31	0.022000
19	2021-11-30	0.001000
20	2021-12-31	0.004000
21	2012-08-31	0.011000
22	2013-05-31	0.006000
23	2023-09-29	0.030000
24	2025-11-28	0.030000
25	2016-11-30	0.011000
26	2012-02-29	0.010000
27	2012-11-30	0.004000
28	2013-11-29	0.014000
29	2014-06-30	0.005000
30	2019-11-29	0.014000
31	2020-07-31	0.004000
32	2020-09-30	0.005000
33	2024-08-30	0.033000
34	2012-03-30	0.009000
35	2012-05-31	0.010000
36	2019-09-30	0.018000
37	2019-10-31	0.017000
38	2021-02-26	0.003000
39	2022-01-31	0.002000
40	2015-03-31	0.009000
41	2018-06-29	0.015000
42	2021-09-30	0.002000
43	2023-11-30	0.031000
44	2024-03-28	0.031000
45	2025-02-28	0.031000
46	2014-07-31	0.005000
47	2014-12-31	0.104000
48	2017-07-31	0.011000
49	2022-06-30	0.010000
50	2025-12-31	0.031000
51	2013-01-31	0.006000
52	2014-08-29	0.005000
53	2017-03-31	0.015000
54	2017-05-31	0.011000
55	2018-04-30	0.016000
56	2022-07-29	0.019000
57	2024-05-31	0.032000
58	2015-09-30	0.014000
59	2016-06-30	0.019000
60	2015-11-30	0.008000
61	2015-12-31	0.134000
62	2023-07-31	0.030000
63	2024-11-29	0.031000
64	2013-09-30	0.009000
65	2015-06-30	0.007000
66	2017-01-31	0.010000
67	2017-04-28	0.012000
68	2018-08-31	0.016000
69	2018-10-31	0.015000
70	2019-07-31	0.019000
71	2023-08-31	0.031000
72	2011-07-29	0.023000
73	2013-10-31	0.011000
74	2024-02-29	0.031000
75	2025-06-30	0.031000
76	2014-04-30	0.010000
77	2017-10-31	0.010000
78	2022-04-29	0.011000
79	2011-09-30	0.017000
80	2013-03-28	0.006000
81	2020-12-31	0.354000
82	2023-05-31	0.030000
83	2019-02-28	0.016000
84	2020-08-31	0.004000
85	2023-03-31	0.030000
86	2025-07-31	0.032000
87	2011-08-31	0.021000
88	2012-09-28	0.008000
89	2021-06-30	0.003000
90	2022-11-30	0.020000
91	2024-09-30	0.033000
92	2014-05-30	0.008000
93	2021-04-30	0.003000
94	2014-02-28	0.013000
95	2016-03-31	0.012000
96	2016-08-31	0.016000
97	2017-09-29	0.009000
98	2022-12-30	0.026000
99	2026-04-30	0.030000
100	2013-08-30	0.008000
101	2014-01-31	0.012000
102	2016-05-31	0.015000
103	2021-10-29	0.001000
104	2024-06-28	0.032000
105	2011-03-31	0.024000
106	2011-12-28	0.114000
107	2018-12-31	0.018000
108	2020-03-31	0.020000
109	2022-09-30	0.011000
110	2014-09-30	0.005000
111	2016-09-30	0.010000
112	2020-02-28	0.012000
113	2026-05-29	0.029000
114	2011-06-30	0.024000
115	2018-09-28	0.015000
116	2018-03-29	0.015000
117	2020-06-30	0.004000
118	2022-02-28	0.002000
119	2022-10-31	0.013000
120	2026-03-31	0.030000
121	2026-07-31	0.027000
122	2012-10-31	0.007000
123	2015-07-31	0.013000
124	2019-01-31	0.017000
125	2019-12-31	0.104000
126	2012-12-31	0.006000
127	2014-11-28	0.009000
128	2012-07-31	0.010000
129	2015-02-27	0.007000
130	2016-04-29	0.013000
131	2016-10-31	0.011000
132	2020-05-29	0.008000
133	2025-10-31	0.031000
134	2011-04-29	0.025000
135	2011-10-31	0.018000
136	2022-03-31	0.007000
137	2026-06-30	0.028000
138	2013-07-31	0.006000
139	2015-05-29	0.010000
140	2018-02-28	0.010000
141	2019-04-30	0.021000
142	2019-08-30	0.019000
143	2020-04-30	0.016000
144	2023-06-30	0.031000
145	2013-02-28	0.005000
146	2017-11-30	0.012000
147	2012-01-31	0.012000
148	2013-06-28	0.006000
149	2018-01-31	0.010000
150	2018-07-31	0.016000
151	2019-06-28	0.021000
152	2020-11-30	0.005000
153	2011-05-31	0.024000
154	2011-11-30	0.014000
155	2024-01-31	0.032000
156	2025-03-31	0.031000
157	2025-09-30	0.031000
158	2021-03-31	0.003000
159	2023-12-29	0.031000
160	2017-08-31	0.010000
161	2021-05-28	0.003000
162	2023-01-31	0.024000
163	2024-04-30	0.033000
164	2013-12-31	0.012000
165	2015-01-30	0.005000
166	2012-06-29	0.009000
167	2015-04-30	0.013000
168	2018-11-30	0.016000
169	2025-01-31	0.031000
170	2025-04-30	0.031000
171	2011-02-28	0.021000
172	2017-06-30	0.012000
173	2020-10-30	0.006000
174	2025-05-30	0.031000
175	2011-12-30	0.010000
176	2014-10-31	0.006000
177	2015-10-30	0.014000
178	2018-05-31	0.014000
179	2021-07-30	0.004000
180	2022-05-31	0.015000
181	2023-10-31	0.031000
182	2024-10-31	0.033000
183	2012-12-27	0.129000
184	2015-08-31	0.012000
185	2024-12-31	0.032000
186	2021-01-29	0.004000
187	2023-02-28	0.022000
188	2025-08-29	0.032000
189	2011-01-31	0.014000
190	2013-04-30	0.006000

3.7 KiB Raw Blame History

3.7 KiB

Raw Blame History