COST is drifting sideways into the back half of June, with short sellers showing the first signs of fatigue even as the stock remains well below the levels most analysts consider fair value.
The short-building story that dominated the past month is beginning to stall. Short interest pulled back slightly on Tuesday — down 0.3% on the day to 7.91 million shares, or 1.79% of the free float. That's still up 6.4% on the week and 18% over the past month, confirming the rebuild that followed the May 29 earnings drop. But the pace has clearly slowed from the roughly 500,000-share surge seen in the week of June 8. The lending market offers no encouragement to new shorts: availability is effectively unlimited, with the borrow pool holding around 293 million shares against a short base of under 8 million. Cost to borrow collapsed to 0.096% on Tuesday — down more than 76% on the week — well off the 0.45% range that persisted through most of the past fortnight. Borrow conditions simply do not reward conviction shorts here. Options positioning has also eased off its defensive peak. The put/call ratio is running at 1.07, below its 20-day average of 1.18 and nearly a full standard deviation softer — a notable shift from the 1.40 read seen in late May when the stock was absorbing the worst of the post-earnings damage.
The Street debate is simpler than it looks: bulls think COST is cheap relative to its own history; bears think it's still expensive relative to where earnings are heading. The consensus leans bullish — 18 buy ratings — with BofA at $1,200 and UBS at $1,275. At a Tuesday close of $986.68, the stock trades roughly 20% below the mean bull target, a gap that has widened rather than closed since the May print. DA Davidson, sitting at Neutral with a $1,000 target, is closer to fair value by that logic and has been consistent in holding that line. On valuation, the trailing P/E has compressed to 45.9 — down 4.7 points over the past month — and EV/EBITDA is near 28.7. The EV/EBIT factor score ranks in the 5th percentile, meaning Costco is among the most expensively-valued stocks in the ORTEX universe by that metric. The bull case rests on e-commerce penetration, same-day delivery momentum, and AI-assisted inventory management. The bear case is more prosaic: tariff exposure, margin pressure from online growth, and a membership renewal rate that's already near its ceiling.
Insider flows offer a mild counterpoint to the short rebuild. The 90-day net figure is fractionally positive at 7,534 net shares, though that headline masks a pattern of consistent sell-side activity from executives — the CFO and several EVPs all sold in the March-April window near the $990-$1,000 level. Those sales were small relative to the float and carry low significance scores, but they do suggest insiders weren't viewing that price level as an obvious discount.
Peers tracked broadly flat to slightly positive on the week. WMT gained 1.8% and KR added a similar 1.8%, broadly matching COST's own 1.9% weekly recovery. BJ lagged at -0.4%, while ACI slipped 3.7% — diverging sharply from the rest of the group. The next scheduled catalyst for COST is the September 24 earnings event, leaving positioning to grind through a quiet summer with no obvious near-term driver.
The next few weeks will reveal whether the short-interest plateau marks genuine covering or simply a pause before the next leg — and whether the stock can close any of the distance to its analyst targets without an earnings catalyst to justify the move.
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