Noteworthy Friday Option Activity: BE, AMKR, ZS

Amkor Technology (AMKR) saw unusually heavy options activity with 15,618 contracts traded (≈1.6M underlying shares), about 44.4% of its one‑month average daily volume, led by 5,426 June 18, 2026 $40 calls (≈542,600 shares); Zscaler (ZS) logged 10,208 contracts (≈1.0M shares), about 43.2% of its one‑month ADV, highlighted by 493 Feb. 20, 2026 $220 puts (≈49,300 shares). The concentration of volume in single strikes and expiries suggests significant directional positioning—AMKR tilted toward large bullish/leveraged exposure in the $40 call and ZS showing notable downside/hedging interest in the $220 put—which could affect near‑term implied volatility and reflect material sentiment shifts among options market participants.

Analysis

Amkor Technology exhibited unusually large options activity with 15,618 contracts traded—about 1.6 million underlying shares or 44.4% of its one‑month average daily volume (3.5 million shares)—and a concentrated block of 5,426 contracts in the $40 call expiring June 18, 2026 (≈542,600 underlying shares). The concentration at a single strike and expiry implies significant bullish/leveraged positioning or dealer hedging that is likely to lift AMKR's implied volatility and create gamma-driven price sensitivity into the June expiry.

Zscaler recorded 10,208 options contracts—roughly 1.0 million underlying shares or 43.2% of its one‑month ADV (2.4 million shares)—with notable activity in the $220 put expiring Feb. 20, 2026 (493 contracts, ≈49,300 shares). Heavy put flow at that strike suggests either directional bearish bets or institutional hedging, which can increase put skew and near‑term downside protection costs for holders of ZS.

The article does not disclose whether trades were buys, sells or spreads, so net directional exposure is ambiguous; the market‑impact score and speculative tone indicate these flows can move short‑term price and volatility. Investors should watch changes in open interest, implied volatility, and post‑trade prints around the highlighted expiries for confirmation before taking material directional positions.

Key Decisions for Investors

• Monitor AMKR $40 June 18, 2026 open interest and IV closely and avoid initiating large unhedged long positions in the underlying until post‑expiry flow and volatility settle
• If you hold AMKR equity, consider trimming size or implementing protective hedges (protective puts or collars) to limit downside from volatility spikes tied to concentrated call activity
• For ZS, track $220 Feb 20, 2026 put flow and skew; consider buying targeted put protection or using put spreads rather than naked shorts if you want downside exposure