Shares of Harmonic Inc. tumbled 11% to $15.12 on May 29, erasing nearly half the gains from a blistering rally that carried the stock from $12.30 on May 19 to $17.00 just nine sessions later — a 38% surge. No new fundamental news or sector disruption triggered the selloff; this is textbook profit-taking by short-term traders locking in a fast gain. The question for longer-term holders: does the pullback undo a genuinely improved story, or simply offer a cheaper entry into it?

• A Blowout Quarter Lit the Fuse — and the Numbers Still Stand. Q1 non-GAAP EPS of $0.21 crushed the $0.12 consensus, and revenue hit $171.8M, powered by 43% broadband growth and 78% expansion in the rest-of-market category.

Backlog and deferred revenue rose to $582.1 million, an 87% increase year over year , giving management unusual visibility into future quarters. Today's drop changes the stock price, not those results.

• The Broadband Pivot Is Becoming the Whole Company. Harmonic now expects full-year 2026 broadband revenue between $475M and $495M, and is selling its legacy video business to Leone Media Inc. for $145 million in cash.

Gross margin guidance for full-year 2026 is 50–51.5%, though memory costs and new product ramps add pressure. Stripping out the video unit sharpens the financial profile but also raises the stakes: broadband must deliver.

• Customer Concentration Remains a Real Risk. Harmonic's top two customers accounted for 58% of total revenue , a vulnerability that any single contract loss could amplify. Rest-of-market bookings now exceed 50% of new orders , a positive trend — but one still in early innings.

• Wall Street Had Just Started Getting More Bullish. Rosenblatt raised its price target to $20 from $16 with a Buy rating , while Needham lifted its target to $18 from $17. At $15.12, the stock now sits below most fresh targets, potentially inviting dip-buyers — or signaling the rally overshot near-term fundamentals. The 52-week high was $15.39 before this rally , meaning the stock spent only a few days in uncharted territory before retreating.

The bottom line: the selloff is mechanical, not thesis-breaking. But with $109M in cash, a $200M buyback authorization, and next earnings not due until late July, holders face a quiet stretch where sentiment — not data — will set the price.