Architectural Cases

A recent survey indicates that Alphabet's YouTube and Meta Platforms' Facebook maintain their leading positions in the United States' social media sphere. In contrast, platforms associated with Elon Musk and Donald Trump exhibit considerably lower engagement among American users. This pattern underscores the enduring influence of established giants in the digital communication space.

Alphabet's 2006 acquisition of YouTube for $1.65 billion stands out as one of the most successful business transactions in history. Today, the video-sharing platform generates over $35 billion in annual revenue and remains a cornerstone of American internet use. According to a Pew Research poll conducted in the first half of 2025, YouTube is the most utilized social media platform in the U.S., with a staggering 84% of respondents reporting regular use.

Following YouTube, Meta Platforms' offerings, Facebook and Instagram, secured the second and third spots, with 71% and 50% regular usage, respectively. WhatsApp, another Meta-owned application, ranked fifth with 32% of users. The comprehensive survey painted a clear picture of user preferences, with TikTok, Reddit, and X (formerly Twitter) falling behind the market leaders.

The poll also examined the performance of newer platforms for the first time. Threads, Bluesky, and Truth Social each garnered less than 10% regular usage among Americans. Threads, also a Meta product, showed limited traction, while Truth Social, primarily owned by Trump Media & Technology Group, struggled to attract a significant user base despite former President Trump's active presence.

Elon Musk's X, despite its prominence among investors and news consumers, reported less than 50% regular usage among Americans. This highlights a disconnect between perceived influence and broad user adoption. The survey further revealed generational differences in platform preferences, with younger demographics favoring Instagram and TikTok, while YouTube and Facebook maintained strong engagement across all age groups.

Truth Social's low engagement extended to its target demographic, with only 6% of Republicans or Republican-leaning individuals reporting regular use, placing it near the bottom of the rankings. This suggests that political affiliation alone does not guarantee widespread adoption for social media platforms. The findings emphasize the established dominance of YouTube and Facebook, which consistently demonstrate high user engagement across diverse demographics, unlike many of their newer or niche competitors.

The healthcare market showcased a lively after-hours trading session on Monday, witnessing both upward and downward shifts across various companies. This summary highlights the key movements, illustrating the dynamic nature of stock valuations influenced by recent corporate news and investor sentiment.

Detailed After-Market Healthcare Stock Performance Analysis

On Monday, November 24, 2025, following the close of regular trading, a dozen healthcare-related stocks demonstrated considerable movement, captivating investors. These shifts provide a snapshot of the sector's health and potential future trends.

Among the top performers, Addex Therapeutics (ADXN) experienced a robust increase, climbing 12.1% to settle at $8.18, pushing its market valuation to $7.2 million. Similarly, Cassava Sciences (SAVA) saw its shares rise by 8.96% to $3.16, contributing to its substantial market capitalization of $138.6 million. Purple Biotech (PPBT) also posted a solid gain, with its stock price advancing 8.26% to $0.89, placing its market cap at $6.9 million. Further positive movements included Biodexa Pharmaceuticals (BDRX), which rose 7.63% to $4.65, achieving a market cap of $2.7 million. iSpecimen (ISPC)'s stock moved up by 3.75% to $0.48, resulting in a market cap of $4.1 million. Lastly, NovaBridge Biosciences (NBP) shares increased by 3.47% to $4.15, boasting a significant market capitalization of $487.5 million.

However, the after-market session also brought declines for several companies. Pasithea Therapeutics (KTTA) faced a considerable drop, with its stock falling 12.9% to $0.37, bringing its market cap to $2.1 million. Aditxt (ADTX) shares decreased by 6.45% to $3.34, with a market value of $1.3 million, reportedly influenced by its Q3 earnings report released four days prior. Tenax Therapeutics (TENX) saw a 5.34% reduction in its stock price, landing at $8.52 and holding a market cap of $50.8 million. Mobile-health Network (MNDR) experienced a 5.14% decline to $2.77, with its market cap noted at $11.3 million. Can Fite Biofarma (CANF) stock also dipped by 3.01% to $0.32, leading to a market cap of $4.9 million. Finally, Profusa (PFSA)'s stock fell 2.94% to $0.15, with a market cap of $5.7 million, following its Q3 earnings announcement three days earlier.

The dynamic movements observed in Monday's after-market healthcare trading underscore the sector's sensitivity to news, earnings, and investor sentiment. For market participants, these shifts highlight the importance of staying informed and agile. The varied performance across these 12 companies suggests a market that, while overall robust, rewards certain developments and penalizes others, offering both opportunities and risks for discerning investors.