Noteworthy Tuesday Option Activity: META, COST, TSLA

Options activity in Costco (COST) and Tesla (TSLA) surged, dominated by large put trades that suggest concentrated downside bets or hedging flows: COST saw 32,519 contracts trade (≈3.3 million underlying shares, ~140.2% of its one‑month average daily volume of 2.3 million), led by 4,367 contracts on the $850 put expiring Nov. 28, 2025 (≈436,700 shares). TSLA recorded about 1.2 million contracts (≈120 million underlying shares, ~136.2% of its one‑month average daily volume of 88.1 million), with 64,109 contracts on the $400 put expiring Nov. 21, 2025 (≈6.4 million shares). Such concentrated put volume at specific strikes and expiries could signal heightened bearish positioning or institutional hedging and may translate into increased implied volatility and meaningful dealer hedging flows that could influence underlying stock moves.

Analysis

Costco (COST) and Tesla (TSLA) experienced outsized options activity today concentrated in large put trades: COST saw 32,519 contracts (≈3.3 million underlying shares, ~140.2% of its one‑month ADTV of 2.3 million) led by 4,367 contracts on the $850 put expiring Nov. 28, 2025 (≈436,700 shares), while TSLA printed ~1.2 million contracts (≈120 million underlying shares, ~136.2% of its one‑month ADTV of 88.1 million) driven by 64,109 contracts on the $400 put expiring Nov. 21, 2025 (≈6.4 million shares). The record of concentrated, long‑dated put volume at single strikes is consistent with either large directional bearish bets or institutional hedges, and the per‑ticker sentiment signals are mildly negative for COST (‑0.3) and more negative for TSLA (‑0.6).

Such concentrated put flows are likely to lift implied volatility at the referenced strikes and create meaningful dealer delta hedging flows that can amplify moves in the underlying, especially into and around the quoted expiries; the market impact score of 0.42 implies a measurable but not systemic effect. The long expiries (Nov 2025) suggest strategic positioning rather than purely short‑term speculation, increasing the chance of sustained volatility and roll/rollout activity.

Key risks include ambiguity in intent (hedge versus directional short), potential for rapidly changing open interest and IV if trades are partially reversed, and the need to watch price follow‑through across sessions; confirmation should come from spot moves, IV term‑structure changes, and evolving open interest before reallocating capital.

Key Decisions for Investors

• Monitor real‑time implied volatility, open interest and price action around the $400 TSLA and $850 COST puts for confirmation before changing core positions
• For TSLA, consider trimming directional exposure or buying targeted protection given the very large 64k‑contract put block and more negative sentiment, rather than blunt liquidation
• For COST, refrain from reactive selling on single‑day flow — consider staggered or option‑based hedges if put accumulation continues and IV rises