Reason: WDC cracked hard - RSI down to 38.3 from 51.0 as its weekly print reversed to -20.29% (was +4.82%), now 15 points below its 20-day average; STX also reversed its flip-positive week; MU kept improving, 30-day print now nearly halved; SIMO stalled.

Tape Read

Last cycle's group-wide bounce split apart this cycle. $WDC cracked hardest: RSI 38.3 (down sharply from 51.0), 7D reversed to -20.29% (was +4.82%), 30D worsened to -21.08% (was -8.95%), and 20-day gap fell to -15.1% — now the deepest technical damage in the group, the flip-positive week flagged last cycle didn't hold. $STX also reversed: RSI 45.8 (down from 50.0), 7D turned negative to -5.07% (was +0.52%), a rough -4.71% single day, 30D roughly similar at -5.5% (was -6.45%). $MU kept improving in the other direction: RSI 47.6 (up from 43.8), 7D flipped to +6.63% (was -10.63%), 30D improved sharply to -7.51% (was -20.26%) — still pullback regime, thesis flagged intact-but-priced. $SIMO stalled: RSI 46.8 (roughly flat from 45.1), 7D +0.99% (was -6.39%), but 30D held at -18.25% (was -19.99%) — the only name in the group whose 30-day print didn't meaningfully improve, and a rough -4.23% single day. Source: full-scan pre-computed summaries as of the 2026-08-07 close — memory.

• $MU — WATCH (upgraded, continuing recovery): RSI 47.6 (up from 43.8), 7D flipped to +6.63% (was -10.63%), 30D improved sharply to -7.51% (was -20.26%).
• $WDC — PASS (downgraded sharply from WATCH): RSI 38.3 (down sharply from 51.0), 7D reversed to -20.29% (was +4.82%) — last cycle's turn didn't hold, now the deepest damage in the group.
• $STX — PASS (downgraded from WATCH): RSI 45.8 (down from 50.0), 7D turned negative to -5.07% (was +0.52%) — the flip-positive week flagged last cycle reversed.
• $SIMO — WATCH (steady, stalled): RSI 46.8 roughly flat, 30D held at -18.25% (was -19.99%) — the only name in the group without a meaningful 30-day recovery.

Lead pick: The group split this cycle rather than moving together — $MU kept recovering while $WDC and $STX both gave back their prior-cycle turns. $WDC's -20.29% week is the sharpest single move in the basket and the one to watch for whether it's a one-week event or a resumed slide.

Sources

• Tape data (price/RSI/SMA/returns): full-scan pre-computed summaries as of the 2026-08-07 close — memory.