CART Options Surge While an Activist Quietly Trims

CART rose 2.2% on the week to $50.76, almost exactly matching the median 2.3% gain across its closest peers. The more interesting story is not the price but what's happening underneath it: options traders have turned sharply bullish at the same time a Schedule 13D activist is cutting its stake, and short sellers who piled in during October have begun to pull back.

The options market is the loudest signal this week. Call demand has swamped puts to a degree well outside normal bounds: the put/call ratio dropped to 0.31, roughly two standard deviations below its 20-day average of 0.35, and close to the lowest reading of the past year (52-week low of 0.23). That kind of lopsided call positioning typically reflects either conviction that the stock will continue rallying or active hedging of short positions by participants who borrowed shares earlier in the month. The borrow market offers no friction to explain it: availability is at 790% of short interest, meaning there are nearly eight shares available to lend for every one already borrowed, a loose lending environment with cost to borrow at just 0.39%. Whatever is driving the call buying, it is not a squeeze dynamic.

Short interest itself tells a more complicated story. Bears added aggressively through early October, with shares short climbing 37% over the past month to reach 8.2% of free float, a level worth watching in a $11.5bn market cap name. This week, however, that positioning reversed modestly: shorts trimmed around 2.5% of their position in the past five days, pulling back from a peak near 22.8 million shares on October 15 to roughly 21.5 million by October 20. The retreat is small relative to the build. With earnings due November 5, some of that short pressure may simply be traders taking profit ahead of the print rather than a change of view.

The activist register adds another layer worth noting. SC US (TTGP), Ltd., which filed a Schedule 13D on CART, has trimmed its stake from 9.5% to 8.0% of shares, according to its most recent filing on August 17. A 13D filing carries activist intent, making this reduction meaningful: the position remains large but the direction of travel is down. Apoorva Mehta, Instacart's co-founder, separately holds roughly 7.5% through institutional records, while D1 Capital Partners is the largest institutional holder at 9.7%. One notable move in the ownership data is LSV Asset Management, which added 3.8 million shares in the September quarter, making it one of the more aggressive recent buyers among disclosed holders. As with all 13D/G positions, stakes are as-last-disclosed around the 5% threshold and holders can exit below that level without a further filing.

The Street sits broadly positive but split on valuation. The consensus is a hold, with 15 analysts on that rating and a mean price target of $57.90, implying roughly 14% upside from current levels. The bull case centres on 14% gross transaction value growth and the company's positioning as an advertising platform layered over grocery delivery. The bear case flags margin compression: off-site advertising is growing faster but carries lower margins, and EBITDA estimates have been revised down 2%. Barclays is the standout outlier on valuation, with an Overweight rating and a $77 target, the highest on the Street. Wells Fargo lifted its Equal-Weight target to $56 from $54 in early October. The PE multiple has expanded about 10% over the past month to 10.7x, while the EV/EBITDA of 7.8x is also drifting higher. One factor worth flagging: the 12-month forward EPS growth estimate ranks in the 96th percentile of the coverage universe, a strong growth signal, though the EPS surprise factor ranks only in the 18th percentile, meaning the company has a recent history of missing estimates relative to peers.

The last earnings print, in August, produced a 10.6% single-day gain and the stock held almost all of it over the following week, a pattern that rewards watching given the November 5 date. Wikipedia page views for Instacart are running at a z-score of 4.7 against their own 90-day history, pointing to a meaningful pickup in retail attention around the stock right now. The level that would change the picture on positioning is whether short interest, currently retreating from its one-month high, resumes building in the two weeks before the print or continues to unwind.