[daggerok]

What changed

• Re-applied the shared nport-reader block from workspace template commit 3380d91 (this repo carried 5999634 since fix(updater): current shared n-port name key (dotted legal abbreviations, public limited company) #89): nportNameKey now joins every run of single-letter initials whether written with dots, spaces or a slash (N.V. = N V = NV, C.H. ROBINSON = SEC's C H ROBINSON, A/S = A S), keeps a leading US (U.S. BANCORP is no longer Bancorp, Inc. = TBBK) and strips backslash EDGAR suffixes (US BANCORP \DE\) as well as the slash ones; PUBLIC LIMITED COMPANY stays plc
• New test N-PORT issuer names match SEC titles across initials, a leading US and backslash EDGAR suffixes in parsing 3 (US Bancorp -> USB, Bancorp Inc/The -> TBBK, CH Robinson Worldwide Inc -> CHRW); it fails with the 5999634 block
• Only the N-PORT ticker match by issuer name changes; the other blocks are identical

Why

Issuer names in N-PORT filings and SEC company titles spell initials differently, so U.S. equities could lose their ticker or (U.S. Bancorp) get a wrong one

Effect on real filings

Newest real N-PORT-P filing read with this repo's own readNportHoldings + nportTickers (published rows 0, as with the fund folder removed), old block vs new block on byte-identical cached SEC answers; nothing written to api/:

DGRW (2026-06-30, 198 positions): tickers 197 -> 197, 0 changed
DLN (2026-06-30, 312 positions): tickers 308 -> 308, 0 changed
DES (2026-06-30, 525 positions): tickers 519 -> 519, 0 changed
EPS (2026-06-30, 506 positions): tickers 473 -> 473, 0 changed

No ticker changes for these funds today (the filer gives most tickers itself; in EPS the 33 rows without one are non-U.S. ISINs and money market funds); the change guards future filings

Checks

• bun test: 66 pass, 0 fail, exit 0 (one new test); the same with every update-data.config.json control exported: 66 pass, exit 0
• bun build --target=bun scripts/update-data.ts --outfile=/dev/null, bun build --target=bun src/main.tsx --outfile=/dev/null, git diff --check
• check-readme.ts ., check-scripts.ts .: ok; apply-block.ts --check holdings-guard,nport-reader,windowed-chart,fund-selection .: all identical
• tc/check.sh .: no new errors (52 lines, same as main)