Stocks making the biggest moves after hours: Palantir, Pinterest, Duolingo, Paramount Skydance & more

After-hours trading was mixed across reported names, with notable beats from Paramount Skydance, Palantir, Pinterest, Sonos and Firefly Aerospace offset by guidance disappointments at Duolingo, IAC, ON Semiconductor and Fabrinet. Paramount Skydance posted adjusted EPS of 23 cents vs. 15 cents expected on $7.35 billion revenue vs. $7.28 billion, while Pinterest guided Q2 revenue to $1.13 billion-$1.15 billion above the $1.11 billion consensus. Duolingo fell about 13% after monthly active users missed estimates at 137.8 million vs. 145.6 million, and IAC slid 5% after cutting 2026 EBITDA and operating income outlooks.

Analysis

This tape is less about absolute earnings quality than about who is still monetizing attention efficiently. The cleanest winners are the names with visible monetization leverage on top of stable or improving demand signals: PINS and PLTR. PINS is getting rewarded because ad budgets are still moving toward measurable, intent-driven surfaces, while PLTR’s reaction suggests the market is willing to pay for durable federal/commercial demand even when the quarter is not explosive; both can keep outperforming if management sustains guidance discipline into the next print.

The biggest loser is DUOL, and the second-order issue is not just user growth, but whether the company is hitting a ceiling in how aggressively it can convert casual engagement into paid bookings without impairing top-of-funnel growth. That creates a near-term multiple reset risk for high-duration subscription software: if user acquisition slows, every forward bookings miss has an outsized effect on NTM EV/sales. ON and FN both point to a similar pattern in hardware/semicap capex names: the market is no longer paying for modest beats if the forward outlook is merely “fine,” which tends to punish suppliers exposed to the timing of customer spending rather than structural demand.

The contrarian read is that some of the moves are probably overstating one quarter’s signal. PINS may be getting too much credit for a single guidance beat unless ad pricing and conversion continue to improve into the back half; conversely, DUOL may be overpunished if MAU volatility reflects channel mix or geography rather than true demand deterioration. In the defense/space pocket, FLY remains a higher-beta validation trade on execution, but the narrow-margin nature of aerospace makes it vulnerable to even small slips in launch cadence or working-capital needs over the next 1–2 quarters.

Key Decisions for Investors

• Long PINS on a 1-3 month horizon; use post-gap consolidation as entry. Risk/reward favors upside continuation if ad demand remains measurable, with downside capped unless guidance is revised lower next quarter.
• Short DUOL or buy put spreads into any bounce over the next 2-6 weeks. The setup is a multiple compression trade: if growth decelerates again, the stock can de-rate faster than fundamentals deteriorate.
• Pair long PINS / short DUOL for a relative-value expression on attention monetization versus growth-quality skepticism. Best held into the next earnings cycle; the spread should widen if PINS execution stays clean.
• Avoid chasing ON and FN after the initial reaction; instead, sell into strength or use call overwrites. Both names face a higher bar now, where modest forward guidance misses can erase the benefit of quarterly beats.
• Small tactical long PLTR versus a basket of high-multiple software peers that rely on accelerating bookings. PLTR’s resilience suggests the market is rewarding contracted visibility; hold only while revenue growth holds above expectations.