QuantumScape shorts dig in as analysts cut targets

QS enters the back half of October with short sellers holding firm near a 20% float position, analysts slashing price targets, and an index rebalance decision looming on the horizon.

The short side of this trade is substantial and has been growing. Short interest has climbed 13.7% over the past month to almost 112 million shares, now accounting for roughly 20% of the free float. That monthly build is the clearest expression of where informed money is leaning. The week itself was quieter on the short side, with positions barely moving day to day, but the trend is unambiguous. The ORTEX short score of 76.1 ranks in the 97th percentile, one of the more elevated readings in the market. Days to cover, per the most recent FINRA fortnightly print, sits at 9.1, meaning any reversal would take sustained buying to work through the overhang.

The borrow market, though, does not look particularly hostile to shorts. Cost to borrow has fallen sharply, down more than 20% on the week and 35% over the past month, now running at just 0.81%. Availability has loosened from its tightest point of the year: on October 13, availability hit 23.9%, one share available for every four already borrowed. By October 20 it had eased back to 36.1%, still tight relative to the broader market but moving in a direction that leaves shorts more comfortable than they were a fortnight ago. The contrast is notable. Short interest builds while borrow gets cheaper and easier to access: bears are adding conviction, not fighting for shares.

Options traders are telling a different story. The put/call ratio has dropped to 0.25, the lowest reading of the past 52 weeks and sitting 1.2 standard deviations below the 20-day average of 0.29. That skew toward calls is unusual for a name this heavily shorted. It could reflect speculative positioning for a bounce, or it could reflect the simple mechanics of a stock trading near its floor where downside protection becomes less economical to buy. Either way, the call-heavy options market stands apart from the broader bearish posture visible in short interest.

The Street has been uniformly negative on targets. Morgan Stanley's Andrew Percoco cut his price target to $4.50 from $8.50 on October 15, maintaining an Equal-Weight rating. Days earlier, Evercore ISI's Chris McNally trimmed his target to $7.00 from $10.00, also holding In-Line. Those two moves bracket the current price at $3.98 from above, with the mean analyst target across all coverage sitting at $5.79. The direction of travel in analyst revisions has been one-way downward across 2026: no upgrades have appeared in the recent changes, only target reductions from firms maintaining neutral stances. EPS momentum scores rank in the bottom fifth of the market at a 19th percentile on a 30-day basis and 25th on 90 days, while the forward earnings outlook factor sits near the floor at just the 5th percentile. The price-to-book multiple of 2.6x has fallen nearly 0.74 points over the past 30 days, the sharpest compression in the multiples data, reflecting the stock's 21% decline over that period.

One structural angle worth watching sits in the Russell index hierarchy. ORTEX puts the probability at 35% that QS moves from the Russell 1000 to the Russell 2000 at the December 2026 Semi-Annual Review. The rank date is October 30, announcement is expected November 13, and the trade date would be December 11. The price that decides the outcome is $4.19 to the upside, where QS qualifies for Russell 2000 addition and triggers an estimated $278 million of tracker buying equal to about 4.2 days of normal volume. To the downside, a close below $3.77 would confirm Russell 1000 deletion and trigger around $103 million of selling. With QS trading at $3.98, the stock sits almost exactly between the two lines with daily volatility of 3.8%. Among past additions of this type, 55% of names moved the expected way between announcement and effective date, on a median of minus 4%, though past-change history describes what happened to other stocks and not what this one will do.

Porsche Automobil Holding SE remains the largest institutional holder, with 13.9% of shares unchanged as of March 31. BlackRock added 6.75 million shares in the quarter to September 30, bringing its stake to 4.6%. The activist register carries a stale 13D/A filing from Jagdeep Singh, dated March 2025, disclosing 4.6% of the class at that time. As the disclosure note makes clear, that stake is as last reported and Singh may have moved below the 5% threshold since without any further obligation to file.

What to watch next is the October 30 rank date, which sets the starting point for the December index rebalance decision, and whether short interest continues its monthly build or plateaus as the stock tests the low end of the price band that divides the two Russell indices.