Reason: AMGN pushed back into breakout regime - RSI up to 72.3 from 64.9, now just -2.02% off a fresh 52-week high; TMO stayed overbought; VRTX flipped its weekly print positive again; MRNA posted a +9.86% single day even as its 30-day print stayed deeply negative.

Tape Read

$AMGN is the story again this cycle: last cycle's cooling out of breakout reversed — RSI 72.3 (up from 64.9, back into overbought), 7D +6.69% (was +2.43%), 30D +11.67% (was +6.6%), 20-day gap +8.5%, and distance from its 52-week high tightened to -2.02% (was -3.23%) — regime back to breakout from uptrend, still the closest name to a fresh high in the group. $TMO stayed extended: RSI 71.6 (up from 68.8, still over the 70 line), 7D decelerated to +3.43% (was +1.06%), 30D +16.44%, -10.27% off its 52-week high — still death-crossed. $VRTX flipped its weekly print positive again: RSI 59.7 (up from 48.4), 7D +3.98% (was -0.05%), 30D nearly recovered to -0.47% (was -4.2%) — still golden-crossed and uptrend. $MRNA posted a notable single day: RSI 50.1 (up from 40.9), a +9.86% single day, 7D +7.94% (was +1.39%), though 30D stayed deeply negative at -19.82% and it's -34.28% off its 52-week high (a modest improvement from -35.96%) — still pullback regime. Source: full-scan pre-computed summaries as of the 2026-08-07 close — biotech ($MRNA, $VRTX, $TMO) and biotech-scan ($AMGN, tracked outside the core biotech watchlist).

• $AMGN — WATCH (steady, back into overbought): RSI 72.3 (up from 64.9), -2.02% off 52wk high (was -3.23%) — regime back to breakout, still the group's closest name to a fresh high.
• $TMO — WATCH (steady, still extended): RSI 71.6 (up slightly from 68.8, still over 70), 7D decelerated to +3.43% (was +1.06%) — the overbought extension is holding rather than cooling.
• $VRTX — WATCH (upgraded from PASS): RSI 59.7 (up from 48.4), 7D flipped positive to +3.98% (was -0.05%), 30D nearly recovered to -0.47% — the giveback flagged last cycle reversed.
• $MRNA — WATCH (steady): RSI 50.1 (up from 40.9), +9.86% single day, 7D +7.94% — a strong bounce day, though the 30-day print stays deeply negative at -19.82%.

Lead pick: $AMGN remains the best-positioned name in the basket — its overbought extension didn't cool this time, it re-accelerated into a fresh breakout regime tightest to a new high. $MRNA's single-day pop is worth flagging but doesn't yet offset a deeply negative 30-day print.

Sources

• Tape data (price/RSI/SMA/returns): full-scan pre-computed summaries as of the 2026-08-07 close — biotech ($MRNA, $VRTX, $TMO) and biotech-scan ($AMGN, tracked outside the core biotech watchlist).