fix(core): non-regular share is of all trading

IDX's Value is regular-board turnover, so NonRegularValue / Value gave
non-regular over regular (BBRI 2026-10-14: 50.91%) instead of the share of
all trading (33.74%). non_regular_bps now divides by regular plus
non-regular value, with a regression test on that fixture. The docs now say
volume, value and the foreign figures are the regular board: IPOT's
regular total matches Value, and in a week of every stock no foreign figure
exceeded regular volume, even with non-regular volume above twice it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01V3syn2fN2LNo5pvTSqc6eh
This commit is contained in:
hermes 2026-10-18 05:41:55 +00:00
commit 83783684cb
13 changed files with 50 additions and 27 deletions

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@ -57,7 +57,8 @@ idx stocks flow BBCA --from 2026-10-01 --to 2026-10-16
What foreign investors bought and sold, session by session: buy, sell and
net volume in shares, the net value at each session's average price (an
estimate), and the share of value traded outside the regular board. The
estimate), and the share of all value traded outside the regular board.
Volume, value and the foreign figures are IDX's regular-board figures. The
footer gives the net over the range and foreign investors' share of trading.
Without dates it shows the latest 10 sessions (`--days`, at most 60).

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@ -65,7 +65,7 @@ Company data for one IDX ticker: profile, financial statements, earnings, analys
## `get_foreign_flow`
Foreign investors' buying and selling of one IDX ticker, session by session (oldest first), from IDX's daily trading summary: foreign buy, sell and net volume in shares, `foreign_net_value` (net shares at the session's average price, an estimate, IDR), `change_bps`, and `non_regular_bps` (share of value traded outside the regular board). Totals cover the whole range; `foreign_share_bps` is foreign investors' share of trading. End of day.
Foreign investors' buying and selling of one IDX ticker, session by session (oldest first), from IDX's daily trading summary: foreign buy, sell and net volume in shares, `foreign_net_value` (net shares at the session's average price, an estimate, IDR), `change_bps`, and `non_regular_bps` (share of all value traded outside the regular board). Volume, value and foreign figures are the regular board. Totals cover the whole range; `foreign_share_bps` is foreign investors' share of regular-board trading. End of day.
| Input | Type | Required | Description |
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