Reason: PLTR is the most extended short-term mover in the basket - 30D +44.45%, RSI 69.4 - but change1y is only +15.21% with a negative alpha1y (-6.6), making the pop a short-window squeeze rather than confirmed leadership; MRVL is the long-horizon-confirmed leader - change1y +232.87%, 63.4% above its 200-day, alpha1y +211.06 - a deep pullback, not a breakdown, despite a weak-down short trend tag on ARM/TSM; ARM stays the weakest structurally at -46.25% off its 52-week high.

Tape Read

$PLTR is the group's most extended chart this cycle: price $179.94, RSI 69.4 (elevated), death-crossed short-term, regime pullback, thesis intact, 7D +3.4%, 30D +44.45%, -13.29% off its 52-week high — but change1y is only +15.21% and alpha1y is -6.6, meaning it has lagged the market over the full year despite the recent sprint; the pop reads as a short-window move, not confirmed leadership. $MRVL is the long-horizon-confirmed leader: price $237.04, RSI 55.8, golden-cross, regime pullback, thesis unrated, 7D +6.82%, 30D +12.35%, still -28.14% off its high, but change1y +232.87%, 63.4% above its 200-day average (vsSma200), and alpha1y +211.06 — a deep pullback inside a structurally intact uptrend, not a breakdown. $NVDA: price $214.72, RSI 51, golden-cross, regime basing, thesis intact, change1y +22.87%, vsSma200 +10%, alpha1y +1.06 — modestly intact. $AMZN: price $258.63, RSI 49.7, golden-cross, regime uptrend, thesis intact, change1y +16.53%, vsSma200 +8.5%, alpha1y -5.29 — flat-to-slightly-lagging the market over the year despite a positive 30D (+5.63%). $TSM: price $418.95, RSI 50.4, golden-cross, regime pullback, thesis unrated, change1y +84.29%, vsSma200 +14.4%, alpha1y +62.48 — deep pullback in an intact trend despite a weak-down short trend tag. $ARM: price $243.32, RSI 39.2, golden-cross, regime pullback, thesis intact-but-priced, change1y +82.56%, vsSma200 +23.4%, alpha1y +60.75, but still -46.25% off its 52-week high — the weakest structure in the group on distance-to-high even though the long horizon is still positive. Source: full-scan pre-computed summaries as of the 2026-08-21 close — ai-infra.

• $PLTR — WATCH: 30D +44.45%, RSI 69.4, but change1y only +15.21% and alpha1y -6.6 — a short-window squeeze, not a confirmed structural leader.
• $MRVL — PROMOTE: change1y +232.87%, 63.4% above its 200-day, alpha1y +211.06 — a deep pullback (-28.14% off high) inside a genuinely intact uptrend.
• $NVDA — WATCH: golden-cross, regime basing, thesis intact, change1y +22.87%, alpha1y +1.06 (roughly market-matching).
• $AMZN — WATCH: golden-cross, regime uptrend, thesis intact, but alpha1y -5.29 — lagging the market over the year.
• $TSM — WATCH: golden-cross, regime pullback, change1y +84.29%, alpha1y +62.48 — deep pullback in an intact trend.
• $ARM — WATCH: thesis intact-but-priced, change1y +82.56%, but -46.25% off its 52-week high — the weakest chart in the group on distance-to-high.

Lead pick: $PLTR is the tape's most visible mover this cycle by magnitude, but its flat change1y and negative alpha1y mark the extension as a short-window squeeze. $MRVL is the long-horizon-confirmed leader — 63.4% above its 200-day with a change1y of +232.87% — a deep pullback inside a genuinely intact structural uptrend, exactly the setup this desk looks for, not a breakdown.

Sources

• Tape data (price/RSI/SMA/returns/change1y/alpha1y): full-scan pre-computed summaries as of the 2026-08-21 close — ai-infra.