Insider & Short-Selling Daily, October 16

Every trading day subscribers get the activity that often moves ahead of the news, matched to the model's ranking and the model portfolio: insider buying and selling, unusual options volume, implied-volatility jumps, crowded shorts, short-selling spikes and analyst moves.

Inside today's subscriber note

• Signals on the model portfolio's holdings (4)
• Insider buying (9)
• Insider selling in top-ranked and held names (8)
• Short-selling spikes (5)

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Research only, not investment advice or a recommendation to buy or sell any security. Rankings change as data changes and can be wrong. Torvanta and its founder may hold positions in securities discussed. Past performance does not guarantee future results.

More research

• Market brief, October 16: S&P 500 falls 1.1% as computer hardware stocks slide 2026-10-16
• Why it moved, October 16: Supermicro -10%, Flex Ltd. -8%, Palo Alto Networks -8% 2026-10-16
• Earnings Scorecard, week of October 12: 37 reports 2026-10-16
• Analyst moves this week: 6 upgrades, 7 downgrades across the S&P 500 (October 12) 2026-10-16
• Earnings Recap: 63% of 19 S&P 500 reports beat (October 12-16) 2026-10-16
• Insider & Short-Selling Daily, October 15 2026-10-15
• Market brief, October 15: S&P 500 rises 0.3% as medical device stocks rally 2026-10-15
• Why it moved, October 15: Equifax +7%, Reddit +7%, Hewlett Packard Enterprise -7% 2026-10-15
• The Giants Monitor: the top 10 are 43.0% of the S&P 500 (week of October 12) 2026-10-15
• Insider & Short-Selling Daily, October 14 2026-10-14
• Market brief, October 14: S&P 500 falls 1.2% as computer hardware stocks slide 2026-10-14
• Why it moved, October 14: Dell Technologies -11%, Ciena -10%, Everpure -10% 2026-10-14

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