10 Hot Stocks to Watch — Monday, October 19, 2026

Riot Platforms tumbled 11.48% to $13.72, extending losses alongside peers as crypto-to-AI pivots face investor skepticism over bubble concerns. Cantor Fitzgerald cut its price target to $24 from $30, maintaining overweight but signaling caution. Options flow leans bearish: put volume swamps calls (0.71 ratio), with heavy concentration in $13–$15 strikes expiring October 23, suggesting traders are hedging downside risk below current levels. Watch the $13 floor—breach there targets fresh 52-week lows.

Lucid Group plummeted 10.57% to $3.13 after Morgan Stanley downgraded the EV maker to Underweight with a $3 price target, coinciding with the stock trading near its lowered analyst floor. Despite upbeat Q3 delivery growth and France expansion plans, the Street remains skeptical on unit economics and cash burn. Options markets, however, signal contrarian conviction: call volume is crushing puts with a 9.91 call-to-put ratio, with $3.0 strike calls expiring Oct. 23 drawing 9,362 contracts. Watch $3.0 support through next week's options expiry.

Okta shares cratered 10.2% today amid a broader selloff in cybersecurity and AI infrastructure names, as investors pivot from technology promises to debt-sustainability concerns. The identity-management leader's emerging role in autonomous-agent standards—formalized by the IETF—offered little protection against macro headwinds and sector rotation. Options markets are decisively bearish, with a 0.47 call-put ratio and heavy put buying concentrated near $182.50 and $180 strikes through October 2026, signaling traders expect further downside testing into the $165–$170 band.

Super Micro Computer tanked nearly 10% today amid leadership turnover following its recent accounting review and auditor resignation, though the appointment of Western Digital's Mark Long as CFO signals stabilization efforts. Options markets are painting a different picture: call volume has exploded with 62,500+ contracts across the $33.50–$35.50 strikes expiring October 23, suggesting traders are betting on a near-term bounce. Street targets near $42 imply 33% upside from current levels, but execution risk remains elevated given governance questions and the high-beta volatility (2.22) typical of AI hardware plays.

AST SpaceMobile dropped 8.55% today, extending a 67% year-to-date decline amid intensifying competition from SpaceX's Starlink mobile expansion and persistent earnings misses. Options flow remains mixed with a 0.91 call-to-put ratio, though notable whale activity emerged in longer-dated puts at $25 strike (Oct 2026) with 3,612x volume, signaling deep downside protection bets. Meanwhile, call volume clustered around $45–$50 strikes suggests tactical accumulation ahead of potential M&A, which recent commentary pegged as a viable path for telecom consortiums to challenge SpaceX. Watch the $39.87 support level—a break below triggers fresh 52-week lows.

Rocket Lab shares plunged 7.98% today, extending a brutal week after the company pushed Neutron rocket debut to 2027 following design flaws requiring full redesign. The selloff has erased $57 billion in market value and broken key technical support, prompting Jim Cramer to call it a sell. Yet options traders are painting a bullish picture: heavy call buying at $55 and $60 strikes (Oct 2026 expiry) signals conviction in a 2027 rebound, even as Wall Street trimmed targets but held mostly bullish ratings. Watch the $37.57 52-week low for capitulation support.

Moderna shares dropped sharply today despite recent Nasdaq-100 inclusion and Phase 3 cancer vaccine success with Merck, signaling profit-taking after a year-long 988% rally from $22.28 lows. Options markets remain constructively positioned, however: call volume is running 1.95x puts, with heavy concentration in $235–$252.50 October 2026 calls suggesting traders expect a rebound toward $240+ within twelve months. The stock's 52-week high of $242.29 sits just above current resistance; watch whether support holds near $210.

VXX jumped 7.6% today as hot CPI data reignited rate-hike fears and sent tech into retreat, lifting the volatility proxy sharply. Options flow turned decisively bullish with a 9.34 call-to-put ratio, signaling traders expect elevated vol to hold above current levels rather than mean-revert quickly. Heavy positioning in $20 calls expiring late October suggests conviction for a move toward $20, where 38,806 contracts traded in a single October 2026 contract—a signal of structural call accumulation ahead of earnings season.

Arm Holdings dropped 6.94% to $227.80 after a Delaware jury found the chipmaker breached Qualcomm's architectural license agreement and intentionally disrupted its business—a ruling that threatens Arm's lucrative licensing model and adds pressure to an already battered semiconductor sector. Despite today's sell-off, options traders are positioning for recovery, with heavy call buying (C/P ratio 1.52) concentrated in $245–$250 strikes expiring October 2026, suggesting conviction that the current valuation offers value after the 50% pullback from the $452.70 high. A second jury ruling on Arm's newest chip designs arrives next week; that verdict will likely dictate whether this dip becomes a buying opportunity or signals deeper structural damage.

AMD dropped 5.95% today, extending chip sector weakness as investors reassess AI infrastructure demand. Yet options markets reveal conviction: call volume surged to 2.48x puts, with heavy positioning in $550–$560 strikes expiring mid-October, suggesting traders see a near-term bounce. The real concern isn't AMD's product roadmap but its premium valuation relative to TSMC and peers—a stock problem, not a company problem. Watch the $535 level as support ahead of earnings.