f/astex-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

3.8 KiB

Raw Blame History

1	Date	Dividends
2	2012-11-30	0.013000
3	2015-07-31	0.008000
4	2016-04-29	0.009000
5	2018-11-30	0.013000
6	2023-03-31	0.016000
7	2010-03-31	0.011000
8	2012-02-29	0.012000
9	2012-09-28	0.011000
10	2021-11-30	0.003000
11	2026-01-30	0.022000
12	2017-12-29	0.011000
13	2018-10-31	0.012000
14	2020-12-31	0.035000
15	2024-01-31	0.019000
16	2025-08-29	0.024000
17	2012-07-31	0.011000
18	2018-09-28	0.012000
19	2020-11-30	0.007000
20	2026-07-31	0.023000
21	2010-09-30	0.011000
22	2024-09-30	0.022000
23	2025-01-31	0.022000
24	2018-08-31	0.012000
25	2019-02-28	0.012000
26	2021-08-31	0.003000
27	2024-04-30	0.020000
28	2010-05-28	0.012000
29	2016-08-31	0.008000
30	2017-07-31	0.010000
31	2019-07-31	0.013000
32	2020-02-28	0.010000
33	2010-07-30	0.011000
34	2011-06-30	0.010000
35	2013-10-31	0.008000
36	2020-06-30	0.009000
37	2022-06-30	0.007000
38	2022-08-31	0.011000
39	2025-12-31	0.028000
40	2010-06-30	0.013000
41	2013-04-30	0.010000
42	2017-03-31	0.011000
43	2014-02-28	0.010000
44	2020-05-29	0.010000
45	2021-01-29	0.006000
46	2022-10-31	0.013000
47	2024-05-31	0.022000
48	2010-11-30	0.011000
49	2012-08-31	0.011000
50	2012-12-31	0.010000
51	2014-09-30	0.009000
52	2015-03-31	0.009000
53	2017-05-31	0.011000
54	2022-12-30	0.016000
55	2010-12-31	0.010000
56	2011-07-29	0.010000
57	2011-10-31	0.010000
58	2016-03-31	0.009000
59	2025-02-28	0.023000
60	2025-09-30	0.023000
61	2012-05-31	0.012000
62	2015-09-30	0.009000
63	2015-12-31	0.008000
64	2015-04-30	0.010000
65	2016-06-30	0.009000
66	2016-10-31	0.010000
67	2019-01-31	0.013000
68	2019-08-30	0.013000
69	2011-12-30	0.011000
70	2013-06-28	0.010000
71	2014-04-30	0.009000
72	2020-08-31	0.008000
73	2023-06-30	0.017000
74	2012-10-31	0.011000
75	2014-03-31	0.009000
76	2017-09-29	0.010000
77	2017-04-28	0.010000
78	2020-03-31	0.012000
79	2020-10-30	0.007000
80	2024-12-31	0.024000
81	2013-05-31	0.010000
82	2016-02-29	0.008000
83	2016-12-30	0.010000
84	2019-09-30	0.012000
85	2026-04-30	0.023000
86	2013-08-30	0.008000
87	2017-01-31	0.010000
88	2018-07-31	0.011000
89	2021-06-30	0.004000
90	2022-02-28	0.004000
91	2013-12-31	0.009000
92	2017-08-31	0.010000
93	2021-04-30	0.005000
94	2021-03-31	0.005000
95	2024-10-31	0.022000
96	2025-04-30	0.022000
97	2011-04-29	0.011000
98	2011-11-30	0.010000
99	2020-09-30	0.008000
100	2024-11-29	0.021000
101	2025-07-31	0.023000
102	2015-01-30	0.009000
103	2019-06-28	0.014000
104	2023-10-31	0.020000
105	2016-07-29	0.009000
106	2016-11-30	0.009000
107	2020-01-31	0.011000
108	2025-11-28	0.022000
109	2012-01-31	0.011000
110	2014-12-31	0.009000
111	2015-02-27	0.008000
112	2018-04-30	0.012000
113	2020-04-30	0.010000
114	2021-12-31	0.027000
115	2022-04-29	0.005000
116	2011-02-28	0.012000
117	2016-09-30	0.009000
118	2017-10-31	0.011000
119	2026-03-31	0.023000
120	2014-08-29	0.008000
121	2018-12-31	0.013000
122	2024-02-29	0.019000
123	2014-07-31	0.009000
124	2015-05-29	0.010000
125	2017-06-30	0.010000
126	2019-12-31	0.012000
127	2024-06-28	0.021000
128	2013-01-31	0.010000
129	2014-01-31	0.008000
130	2014-05-30	0.009000
131	2024-08-30	0.021000
132	2013-09-30	0.008000
133	2016-01-29	0.008000
134	2018-05-31	0.012000
135	2019-10-31	0.012000
136	2023-02-28	0.015000
137	2011-03-31	0.010000
138	2011-08-31	0.010000
139	2013-07-31	0.009000
140	2026-06-30	0.022000
141	2019-03-29	0.014000
142	2022-09-30	0.012000
143	2023-08-31	0.019000
144	2023-09-29	0.019000
145	2012-04-30	0.012000
146	2014-11-28	0.009000
147	2018-02-28	0.011000
148	2021-10-29	0.003000
149	2022-03-31	0.004000
150	2022-07-29	0.009000
151	2026-02-27	0.021000
152	2014-06-30	0.009000
153	2021-05-28	0.005000
154	2021-09-30	0.004000
155	2012-06-29	0.011000
156	2019-04-30	0.014000
157	2026-05-29	0.023000
158	2019-11-29	0.011000
159	2023-01-31	0.015000
160	2023-05-31	0.017000
161	2013-11-29	0.009000
162	2015-08-31	0.008000
163	2018-01-31	0.012000
164	2025-05-30	0.023000
165	2011-05-31	0.011000
166	2021-02-26	0.005000
167	2024-03-28	0.020000
168	2020-07-31	0.009000
169	2022-11-30	0.012000
170	2023-07-31	0.016000
171	2010-08-31	0.009000
172	2011-01-31	0.010000
173	2015-06-30	0.009000
174	2021-07-30	0.004000
175	2025-03-31	0.023000
176	2025-10-31	0.023000
177	2014-10-31	0.009000
178	2017-02-28	0.009000
179	2018-03-29	0.012000
180	2022-01-31	0.004000
181	2022-05-31	0.008000
182	2023-11-30	0.018000
183	2010-10-29	0.011000
184	2013-02-28	0.011000
185	2018-06-29	0.012000
186	2017-11-30	0.011000
187	2024-07-31	0.022000
188	2011-09-30	0.010000
189	2015-10-30	0.008000
190	2015-11-30	0.009000
191	2019-05-31	0.014000
192	2023-04-28	0.016000
193	2023-12-29	0.020000
194	2025-06-30	0.023000
195	2012-03-30	0.012000
196	2013-03-28	0.010000
197	2016-05-31	0.009000

3.8 KiB Raw Blame History

3.8 KiB

Raw Blame History