Power Integrations enters the week having shed 11% in five sessions, closing at $74.71 — and the most striking feature of the setup isn't the short book, it's the volume of insider selling that preceded the drop.
Director Balu Balakrishnan sold more than 290,000 shares across a cluster of transactions between May 21 and May 28, collecting over $20 million in proceeds at prices ranging from $70 to $87. Senior Vice President Sunil Gupta added another roughly $1.9 million in sales over the same window. The 90-day net insider value sold across the company runs to approximately $27.3 million, all disposals and no purchases on record. That's a meaningful concentration of supply from people closest to the business, hitting the market just as the stock was testing its recent highs above $86.
Options positioning has sharpened in response. The put/call ratio jumped to 0.27 on Tuesday — still low in absolute terms, but nearly 2.5 standard deviations above its 20-day average of 0.18, making it the most defensive single-day reading in months. For a name whose PCR has spent most of the spring well below 0.20, that spike is notable. It follows directly on the back of the price breakdown: POWI fell 2.6% on the day, completing a week that was down 11.3%. Closest peer AOSL dropped 23% on the week, while and each shed roughly 9-11%, suggesting sector-wide pressure — though POWI's losses land squarely in line with the peer group rather than standing out on the downside.
The short book tells a less alarming story than the insider activity implies. Short interest has nudged higher, reaching 8.2% of free float — up about 12% over the past month — but the borrow market is nowhere near stressed. Availability is ample at around 312%, meaning there are roughly three shares available to lend for every two already borrowed. Cost to borrow runs at 0.53%, up about 8% on the week but still firmly in low-cost territory. With the lending pool this open, there's no mechanical squeeze pressure building, and short sellers face no particular urgency to cover.
The Street's view has grown more constructive recently, which creates a genuine tension with the insider flow. Needham initiated coverage with a Buy and a $90 target as of yesterday — the freshest analyst action on the name. Susquehanna raised its target to $85 from $70 after the May earnings print, maintaining a Positive rating. Those two outliers sit well above the consensus mean target of $65.75, which itself is already below the current price of $74.71, suggesting the broader analyst community has been slow to chase the year's move. The bull case centres on GaN momentum, new leadership in CEO Jennifer Lloyd and CFO Nancy Erba, and tailwinds in grid modernisation and electrification. Bears flag that near-term visibility is cloudy and that the restructuring underway may weigh on results before the benefits arrive. Factor scores add texture: forward EPS growth ranks in the 81st percentile for year-on-year increase, and the dividend score sits at the 95th percentile, but the EPS surprise rank is a weak 14th percentile and the short score rank is just 14th — meaning the short side is not under unusual pressure relative to history.
The next earnings event is scheduled for August 6. The most recent print — on May 7 — moved the stock 6.3% lower on the day and 8.4% lower over the following week, so the reaction function into results has been negative. With the stock now 14% off its late-May highs, the setup going into August turns on whether the GaN design-win narrative can outrun the insider-driven overhang — and whether the Street's freshly raised targets find buyers at current levels or require the price to come further down first.
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