Costco Into Earnings: Options Flip Bullish as Street Holds Firm

COST arrives at its September 24 earnings print with the stock near flat on the week — but the most interesting shift since last week's note isn't in the price, it's in how options traders are positioned.

The clearest change is the put/call ratio. It has dropped sharply to 0.99, now more than two standard deviations below its 20-day average of 1.06 — a meaningful reversal from the cautious tilt described a week ago. That reading sits closer to the bullish end of the past year's range, with the 52-week low at 0.74 and the high at 1.40. Traders have been shedding downside protection and rotating into calls ahead of tomorrow's print. Whether that reflects genuine confidence or simply a positioning squeeze into a low-short-interest name, the options market is no longer braced for disappointment.

The lending market adds almost nothing to the story. Short interest is effectively flat — 1.7% of free float — and has barely moved over the past month. Borrowing costs ticked up roughly 79% on the week to 0.56%, but in absolute terms that remains trivially low. Availability is fully unconstrained at the platform ceiling, meaning there is no friction whatsoever for new shorts entering the stock. This is not a crowded short, and it is not a squeeze setup. The borrow market is a non-event.

The Street held its collective ground. BTIG reiterated its Buy and $1,125 target on the morning of the print, and the broader analyst community remains constructive — bulls outnumber holds materially, with no sell ratings. The BofA trim to $1,095 from $1,200, reported in last week's note, remains the most notable recent adjustment from a bellwether firm. The mean target across the consensus now sits at $1,069, implying roughly 19% upside from the current $899 close. On valuation, the PE has compressed around 7 turns over the past 30 days to 37x, and EV/EBITDA has shed 2.6 turns to 23x — still premium, but less stretched than a month ago. Factor scores are broadly supportive: EPS momentum ranks in the 94th percentile on a 30-day basis and the 86th on 90-day, while the analyst recommendation differential ranks in the 99th percentile across the universe.

The earnings history is worth a brief pause. The last two quarterly prints both produced negative reactions — the May report led to a one-day drop of nearly 5% and a five-day loss of 3.1%. The June print was more contained, with a one-day move of essentially zero but a five-day drift lower of 3.2%. Peers have had a rough week: KR shed 5.9% and BJ fell 4.3%, while WMT bucked the trend with a 1.9% gain. Costco's own week was nearly flat at -0.2%, holding up better than the wholesale club peer.

Tomorrow's print is therefore less about whether the membership model is intact — the Street broadly believes it is — and more about whether management commentary on tariff pass-through and consumer trade-down trends matches the optimism now embedded in call positioning.