Pinterest Shorts Rebuild as Earnings Arrive Tomorrow

PINS has dropped 10.4% over the past week to $20.58, a steeper fall than all eight of its closest peers, and short sellers have used the decline to add to positions for the first time after a sustained exit from the stock.

Short interest has climbed 4.5% over the past week to 46 million shares, now equal to 7.7% of the free float. That reverses a sharp one-month unwind: bears had cut exposure by nearly 16% through early October, when short interest sat closer to 60 million shares. The rebuild is modest in absolute terms, but the timing, just ahead of Wednesday's Q3 earnings release, makes it notable. The borrow market remains loose. Availability is running at roughly 1,483% of short interest, meaning shares to lend are abundant, and the cost to borrow, while up 27% on the week, sits at just 0.47%. There is no squeeze pressure here, only a measured repositioning.

Options traders are leaning the other way. The put/call ratio has slipped to 0.74, more than one standard deviation below its 20-day average of 0.79, meaning call activity has been running ahead of put demand rather than the reverse. That divergence from the short-interest rebuild is the sharpest tension in the setup: shorts are rebuilding while options positioning stays relatively constructive.

The Street remains broadly positive heading into the print, though Keybanc lowered its target to $28 from $30 this morning while keeping its Overweight rating. The consensus mean target is $29.08, implying more than 40% above the current price. Bulls point to record global monthly active users of 631 million, improving ARPU, and AI-driven ad tools that have lifted advertiser return on spend. Bears argue that ad impression growth has slowed sharply, from 40-50% in prior quarters to around 20%, and that international monetization remains uneven. The EV/EBITDA multiple has compressed roughly 5% over the past month to around 5.7 times, consistent with the share price decline rather than a fundamental re-rating.

The founder and co-creator Benjamin Silbermann has been a consistent seller through October, offloading roughly 140,000 shares across multiple dates under a pre-arranged 10b5-1 plan. The trades are mechanical rather than discretionary, but his total holding has declined to 35.1 million shares. Elliott Management holds 28 million shares, a 4.9% stake last disclosed in June, on a passive Schedule 13G filing. BlackRock filed an updated 13G/A on October 27, reporting 8.8% of the class, down from 10%.

The two most recent earnings prints offer a mixed template. The August 2026 Q2 result produced a 3.3% one-day decline and a further drift lower over the following week. The prior release delivered a 6.5% one-day gain. Wikipedia attention is running at a z-score of 4.2 relative to Pinterest's own 90-day history, a sharp spike in retail interest ahead of the announcement tomorrow.

The retail attention spike, the short-interest rebuild against loose borrow conditions, and the options market's relative calm all point in different directions. The print itself, due after the close tomorrow, is the next data point that resolves which of these signals was correctly positioned.