Free · Substack Oct 28, 2026 · 1 min read

Midday update

Midday, October 28: earnings drove double-digit moves in both directions while the S&P 500 held +0.15% and the Nasdaq slipped 0.06%. • $FFIV fell…

Midday update
Intraday Movers · Midday · Intraday Movers — October 28 MIDDAY · Wed, Oct 28

Midday, October 28: earnings drove double-digit moves in both directions while the S&P 500 held +0.15% and the Nasdaq slipped 0.06%.

  • $FFIV fell 18.80% despite beating Q4 estimates, as analysts flagged a slowing hardware-refresh cycle and uncertain AI-product contribution. Piper Sandler downgraded the stock. In two prior 18%+ drops, shares were higher a year later (median +26.4%) but lower after three months.
  • Beats led the upside. STLA rose 14.49% on better-than-expected Q3 results and reaffirmed guidance. VRT gained 13.23% after beating estimates and raising its outlook on AI data-center demand. LH added 10.57% on a Q3 beat and raised guidance.
  • Other decliners: CSGP lost 14.35% on a Q3 bookings slowdown tied to commercial real estate pressure. LOGI fell 10.48% as a 41%-42% December-quarter gross-margin forecast and weaker European demand outweighed a profit beat.
  • Memory drew volume. MU rose 4.81% and SNDK 5.36% after SK Hynix reported record results and forecast demand outstripping supply through the end of the decade.
  • Breadth: Semiconductors +1.60% (LRCX +4.82%) and Healthcare +0.87% led. Real Estate fell 1.00% and Software 0.31%.

Earnings and AI memory demand set the session's direction more than the index level did.

Not financial advice. For informational and educational purposes only.

Originally published on the Position Tracker Substack. Read on Substack ↗

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