Comcast Spike Leads Options Watch

CMCSA grabbed attention Monday as shares spiked sharply higher. The move followed a live CNBC announcement that investor Jenny Harrington had bought the stock. Short interest sits at just 2.56% of free float. Options markets show the nearest expiry on July 2 — just days away — pointing to elevated short-term speculative interest.

NKE has earnings due this week. Options chain shows active expiries through September. SI % FF stands at 5.03%. Bears have plenty of room to manoeuvre — availability sits at 989% of short interest, meaning shares to borrow are plentiful.

CYTK drew fresh attention after UBS upgraded the stock to Buy with a $115 target. SI % FF is elevated at 10.8%. Options expiries are sparse — July 17, August 21, and September 18 only. That thin chain can amplify moves after a major catalyst. Cost to borrow is just 0.52%, suggesting shorts are not yet squeezed.

STZ reports this week too. SI % FF is 4.86%. The September 1 expiry in its options chain is unusual — a non-standard date that sometimes signals institutional positioning around specific event dates.

With crude oil gaining 2% on the day, energy-linked names also saw renewed positioning. Quarter-end rebalancing flows added noise to options pricing across the board. Traders should watch July 2 expiries closely — they expire this Thursday.

This is not financial advice.