CALX Options Signal Bullish Tilt Ahead of Q3 Print

Calix reports Q3 results on November 3 with options traders leaning more bullish than they have been all quarter.

The options signal is the clearest positioning data heading into the print. The put/call ratio has dropped to 0.22, well below its 20-day average of 0.28 and sitting near the bottom of its 52-week range (low of 0.10, high of 2.02). That reading is about 1.4 standard deviations below the recent mean, pointing to unusually heavy call-side demand relative to puts. The shift has been gradual but consistent: the PCR was above 0.35 as recently as late September and has compressed steadily since. Short interest adds a complementary note. At 7.6% of free float, the short position is meaningful, but it has fallen roughly 11% over the past month to around 5.0 million shares. Borrow availability is wide open at over 1,000%, with borrowing costs at just 0.54%, up sharply on the week but still low in absolute terms. Tight positioning and easy borrow together suggest shorts are not crowded into this print.

The bull and bear cases are well-defined. Bulls focus on Calix exiting a transitional period: Calix One is now commercially available, RPO growth is expected to reaccelerate, and management has guided for operating leverage in 2027 as opex grows at roughly half the revenue rate. The most recent quarter showed revenue up 21% year over year, with EPS of $0.47 beating estimates and 14 new platform customers added. Bears point to a more fragile demand picture: the thesis depends heavily on broadband stimulus programs worth more than $40 billion playing out on schedule, Agentic AI adoption over several years, and a macro backdrop that keeps household broadband spending intact. Hardware gross margins also face a roughly 200 basis point headwind from memory price increases. The stock trades at a PE of around 16x trailing earnings, which is more modest than its historical premium, but analyst targets remain well above the current price. JP Morgan cut its target to $58 from $65 in late July while keeping an Overweight rating. Those targets are now more than three months old, and the stock at $36.13 sits nearly 40% below the consensus mean target of $62. Readers should note that the most recent analyst activity dates from late July, before today's print.

Ownership gives some context for the insider activity. Carl Russo, CEO and a 10% holder with 8.8% of shares, sold 75,000 shares in late July at roughly $36.20 under a pre-arranged 10b5-1 plan, collecting just over $2.7 million. The sale was planned rather than discretionary, which limits its signal value. BlackRock has continued to add, reporting 16.2% of the class as of late July and increasing its position by over 600,000 shares through September. State Street and Westfield Capital also added meaningfully in Q3.

The print will test whether Calix's transition narrative is translating into numbers that justify a stock still priced more than 40% below Street targets, and whether management's 2H26 demand acceleration has arrived on schedule.