Notable Friday Option Activity: WMT, VKTX, DPZ

Viking Therapeutics (VKTX) options saw unusually high activity today with 12,563 contracts traded (about 1.3 million underlying shares), equal to roughly 41.8% of VKTX’s one‑month average daily share volume; the heaviest flow was in the $40 call expiring Dec. 12, 2025 (1,485 contracts, ~148,500 shares). Domino’s Pizza (DPZ) also experienced elevated options flow with 2,141 contracts (~214,100 underlying shares), about 41.6% of its one‑month ADTV, concentrated in the $380 put expiring Dec. 19, 2025 (1,454 contracts, ~145,400 shares), signaling concentrated interest in those longer‑dated strikes that could reflect sizable directional bets or hedging activity.

Analysis

Viking Therapeutics (VKTX) options traded 12,563 contracts today, representing roughly 1.3 million underlying shares and about 41.8% of VKTX's one‑month average daily volume of 3.0 million shares. Activity was concentrated in the $40 call expiring December 12, 2025, with 1,485 contracts (~148,500 shares), indicating a sizable, long‑dated bullish directional bet or structured position targeting material upside by late 2025.

Domino's Pizza (DPZ) saw 2,141 option contracts today, about 214,100 underlying shares and 41.6% of its one‑month ADTV of 515,255 shares, with the flow concentrated in the $380 put expiring December 19, 2025 (1,454 contracts, ~145,400 shares). That concentration in a single long‑dated put strike is consistent with either a bearish directional wager or protective hedging by large holders and could materially affect implied volatility and skew around that strike.

The overall sentiment signals are neutral and the market‑impact score is modest (0.25), but the trades represent large notional exposure relative to each name's ADTV so price and IV moves could follow if positions are buy‑to‑open. The article does not state whether trades were buy‑or‑sell to open or part of spreads, so investors should monitor open interest, trade prints, and IV changes before inferring a directional conviction or adjusting exposure.

Key Decisions for Investors

• Monitor subsequent open interest, trade prints (buy/sell indicators) and changes in implied volatility before taking directional positions in VKTX or DPZ
• For VKTX, avoid chasing the $40 call flow until buy‑to‑open evidence or underlying price momentum confirms the bullish thesis, consider defined‑risk call spreads if seeking exposure