TheBuildout · Semiconductor Fab Construction & Engineering — their curated supply-chain list (https://thebuildout.ai/lists/semiconductor-fab-construction-engineering), imported 2026-08-19 as a brand-tagged watchlist. Our slice = US-listed/ADR lines of the free-tier visible head: 5 of 14 visible / 85 total (71 pro-gated; 9 foreign primaries without a US line omitted — see experiments/gloomberg/thebuildout-lists-vs-watchlists.md). Membership and 'aiCriticality' tags are theirs; refresh via deno task market -- scrape-thebuildout --lists.
Cumulative return since Sep 8 — both lines start at 0%, so the gap between them IS the out/under-performance. Hover for daily values.
cohort (+2.5%)
SPY
1D
7D
30D
3M
1Y
cohort
+1.2%
+0.3%
+4.4%
+4.9%
+39.3%
SPY
+0.6%
+1.2%
+2.1%
+3.1%
+16.0%
Δ
+0.6%
-0.9%
+2.3%
+1.7%
+23.3%
equal-weight · buy-and-hold from window start, no rebalancing · 3M+ windows are a current-roster backcast.
30D breadth3/4 up
trend: 3 up · 0 flat · 1 down · avg RSI 55 · 100% above SMA200 · covered 4/4