NVTS shorts rebuild as stock drops 16% in a week

Navitas Semiconductor heads into its November 3 earnings report carrying the week's most uncomfortable combination: short interest climbing toward a six-week high while the stock itself has shed 16% in seven days.

Short interest is the defining tension here. At 21.7% of free float, the ORTEX estimate has risen roughly 24% over the past month, with most of that buildup happening in a single step between October 7 and October 9, when shorts added around 7 million shares. At $8.74, the stock is trading at a deep discount to where that position was built. Availability has tightened sharply too. A week ago it sat above 150%, meaning borrowers had ample headroom. By October 20 it had dropped to around 103%, the tightest in several months, as demand for borrows absorbed supply that was previously sitting idle. Crucially though, the cost to borrow remains negligible at 0.35% annually, down about 12% on the week. The lending market is tightening but not stressed. There is no premium pricing signal that suggests a squeeze is imminent.

Options positioning is, if anything, leaning the other direction from the shorts. The put/call ratio at 0.37 is fractionally below its 20-day average of 0.38 and sits toward the lower end of the 52-week range, where 0.25 is the floor and 0.64 the ceiling. The z-score of minus 0.36 tells the same story: call demand is slightly elevated relative to recent norms, not the defensive hedging one might expect with earnings 13 days out and the stock down sharply on the month. That call-side lean stands in contrast to the short interest buildup, positioning is not telling one clean story.

The Street presents its own contradiction. Needham holds a Buy with a $21 target, Baird sits at Outperform with a $20 target, and Rosenblatt has reiterated Neutral at $13 as recently as September 29. Those targets now sit at premia of 140% to 50% above the current price, which reflects how far the stock has fallen rather than a sudden upgrade cycle. The bull case rests on power GaN traction in AI data centers and grid infrastructure, with high-power markets growing roughly 35% year on year and the data center plus grid segment expanding around 50% sequentially in the most recent quarter. The bear case is harder to dismiss at current prices: revenue was down 39% year on year in Q1 fiscal 2026, about 86% of end-market revenue is tied to China, and the non-GAAP operating loss was $11.7 million on $8.6 million of sales. The EPS momentum factor score of 14 out of 100 on a 30-day basis confirms that estimate revisions have been heading the wrong way recently, even as the longer-run EPS surprise score sits at a striking 97th percentile.

One activist dynamic is worth noting. The SEC register carries two Schedule 13D filings. Singh Ranbir, an insider listed as a major holder, last disclosed a 6.4% stake in May, down from 8.1% previously. Dipender Saluja filed a 13D amendment in December 2025 covering a 3.5% stake. Both filings carry the standard caveat: positions are as last disclosed around the 5% threshold, and holders who drop below 5% are not required to update. Institutional flows from the most recent quarter show BlackRock adding about 1.5 million shares and T. Rowe Price adding nearly 3.9 million, both as of September 30, suggesting index and active managers were still net buyers into the recent weakness. That addition sits against a 90-day insider net figure of negative 3.99 million shares and negative $116 million in value, though the transaction codes in the detail are predominantly compensation grants (type A) rather than open-market sales, so the headline number overstates discretionary selling.

The last two earnings prints saw the stock fall on the day: down 8.3% in July and down 2.3% in August, though both recovered over the following five sessions, gaining 5.5% and 9.8% respectively. Whether the pattern repeats on November 3 will depend on whether management's guidance for Q2 revenue of $10 million is enough to satisfy a market that has now repriced the stock 24% below last quarter's close. The key question is not whether high-power markets are growing, but whether China concentration and the depth of the operating loss are narrowing fast enough to justify a valuation that still carries a price-to-book of 3.3 on a company generating negative returns on capital.