Markets: 2026-08-13 Close

A sourced recap of the previous completed U.S. trading session. Closing moves are not real-time quotes.

The market tape

- **S&P 500 (SPX)**: +0.65%, closed at 7,798.99 - **Nasdaq Composite (COMP)**: +0.81%, closed at 26,803.03 - **Dow Jones Industrial Average (DJIA)**: +0.13%, closed at 53,839.99 - **Russell 2000 (RUT)**: +0.24%, closed at 3,052.85

Sector leaders and laggards

- Leaders: Real Estate +1.89% - Laggards: Energy -0.46%

Notable movers

Accelerant Holdings (ARX) +43.35%

Thoma Bravo agreed to acquire Accelerant for $20.25 per share in cash in a transaction valuing the insurance-platform company at more than $4.4 billion. A high-volume merger-arbitrage repricing that left the stock modestly below the cash consideration.

Sources: dated-close-quote · catalyst-primary

Cisco Systems, Inc. (CSCO) -8.40%

Cisco beat quarterly profit and revenue expectations and issued stronger-than-expected guidance, but shares fell as investors focused on prospective gross-margin pressure and the stock's elevated AI-related expectations. A major negative reaction despite headline beats, making Cisco an important read-through for AI networking margins and valuation sensitivity.

Sources: dated-close-quote · earnings-primary · catalyst-reporting

Sandisk Corporation (SNDK) +13.67%

Sandisk's investor-day presentation reinforced bullish expectations for AI-driven storage demand, NAND-market economics and the company's longer-term profitability. An unusually large move and extraordinary dollar turnover in a major memory and storage supplier, with implications across the semiconductor cycle.

Sources: dated-close-quote · investor-day-primary

Cellebrite DI Ltd. (CLBT) -29.18%

Cellebrite reduced its full-year ARR growth outlook and announced that Shiven Ramji would succeed Thomas Hogan as chief executive, compounding concerns about sales execution and delayed deals. A severe software valuation reset combining slower recurring-revenue expectations with an unexpected CEO transition.

Sources: dated-close-quote · earnings-and-management-primary

Resideo Technologies, Inc. (REZI) -20.42%

Resideo's second-quarter release and management update failed to reassure investors ahead of the planned ADI Global Distribution separation, intensifying execution and outlook concerns. The move repriced both operating expectations and the perceived value and risk of a major corporate separation.

Sources: dated-close-quote · quarterly-results-primary

Pan American Silver Corp. (PAAS) -9.70%

The stock fell following Pan American Silver's second-quarter report as investors scrutinized production, costs and the operating outlook; weaker precious-metals sentiment added pressure. A sizable earnings-driven move in a major precious-metals producer after a strong preceding run in silver-related equities.

Sources: dated-close-quote · quarterly-results-primary

Liftoff Mobile, Inc. (LFTO) -20.59%

Shares sold off after Liftoff released its first quarterly report as a public company, with investors reacting negatively to the growth and forward-outlook implications. A sharp post-IPO price-discovery event for an AI-enabled mobile-advertising platform.

Sources: dated-close-quote · quarterly-results-primary

Omeros Corporation (OMER) +26.55%

Investors responded positively to Omeros' second-quarter results and its accompanying clinical, regulatory and commercialization pipeline update. A large, liquid biotechnology rerating in which pipeline commentary mattered substantially more than near-term reported earnings.

Sources: dated-close-quote · quarterly-results-primary

Stock spotlight

Today’s detailed follow-up focuses on **Accelerant Holdings (ARX)**, the strongest verified editorial candidate from this slate.

_MacroShed Markets is informational analysis, not investment advice._