Markets: 2026-08-24 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)**: -0.28%, closed at 7,652.86 - **Nasdaq Composite (COMP)**: -0.76%, closed at 25,980.19 - **Dow Jones Industrial Average (DJIA)**: +0.26%, closed at 53,417.16 - **Russell 2000 (RUT)**: -0.76%, closed at 2,995.08

Sector leaders and laggards

- Leaders: Consumer Staples +1.76%; Financials +1.29%; Utilities +1.05% - Laggards: Information Technology -1.59%; Energy -0.83%; Industrials -0.69%

Notable movers

Applied Optoelectronics, Inc. (AAOI) -13.77%

Shares absorbed the dilution overhang from a prospectus supplement authorizing up to $600 million of at-the-market common-stock sales, alongside the session's semiconductor selloff. The largest percentage move in this liquid-company selection paired a company-specific financing event with broad weakness in AI and optical-networking names.

Sources: dated closing quote, volume and market capitalization · $600 million at-the-market offering source

Micron Technology, Inc. (MU) -5.83%

Micron fell after reports that Apple could receive permission to source DRAM and NAND from Chinese suppliers, while Samsung-related disappointment and a broad semiconductor pullback amplified the move. More than $25 billion of stock changed hands in a trillion-dollar memory producer, making Micron one of the day's most consequential movers for the AI-infrastructure trade.

Sources: dated close, percentage change and volume · August 24 market capitalization corroboration · reported sector catalyst

Sandisk Corporation (SNDK) -6.45%

Memory and storage shares fell after reports that U.S. policy could permit Apple to source some memory from Chinese suppliers, compounded by disappointment over Samsung's capital-return plan and profit-taking after an extraordinary rally. Sandisk traded nearly $21 billion of stock and remained up several hundred percent for 2026, making the policy headline a major stress test for the memory-cycle trade.

Sources: dated closing quote, volume and market capitalization · reported sector catalyst · catalyst corroboration

Seagate Technology Holdings plc (STX) -6.51%

Seagate declined with the memory and storage complex as Chinese-sourcing headlines, Samsung-related disappointment and profit-taking pressured one of 2026's most crowded hardware trades. The move extended a volatile reversal from a powerful AI-storage rally and generated more than $2.5 billion in session turnover.

Sources: dated closing quote, volume and market capitalization · storage-sector catalyst corroboration · session storage-stock context

Strategy Inc (MSTR) +2.83%

Strategy established a separately designated $1.59 billion USD Cash pool after selling approximately $2 billion of common shares; concurrent Bitcoin strength supported the stock. The market rewarded added treasury flexibility despite substantial equity issuance, offering a read on investor tolerance for Strategy's capital-raising model.

Sources: dated closing quote, volume and market capitalization · SEC-filing-based catalyst report

Tempus AI, Inc. (TEM) -8.97%

No discrete same-session company catalyst was confirmed. The stock encountered profit-taking after a sharp multiweek rally as investors reduced exposure to high-multiple AI companies. Tempus had gained approximately 55% over the preceding month, making the reversal a useful read on momentum and valuation appetite in healthcare AI.

Sources: dated closing quote, volume and market capitalization · AI and technology valuation context

Innodata Inc. (INOD) -11.03%

No discrete same-session company catalyst was confirmed. The decline coincided with a broad unwind in high-beta AI and technology shares ahead of Nvidia earnings and major macro events. A double-digit decline on more than $120 million of turnover highlighted the fragility of smaller AI-service valuations during the technology rotation.

Sources: dated closing quote, volume and market capitalization · broader technology-selloff context

AST SpaceMobile, Inc. (ASTS) -9.18%

No discrete same-session company announcement was confirmed. AST SpaceMobile sold off with other high-beta space and technology names as the Nasdaq and Russell 2000 declined. The decline erased a meaningful portion of a recent rebound in one of the market's most liquid and valuation-sensitive commercial-space equities.

Sources: dated closing quote, volume and market capitalization · session mover and risk-off context

Stock spotlight

Today’s detailed follow-up focuses on **Applied Optoelectronics, Inc. (AAOI)**, the strongest verified editorial candidate from this slate.

_MacroShed Markets is informational analysis, not investment advice._