Twitter - Context Analytics

Turning Twitter Sentiment into a Monthly S&P 500 Portfolio

October 8, 2026

At Context Analytics, we turn the conversation on Twitter into structured, tradable signals. Our S-Factor Feed scores that conversation for thousands of securities every minute of every day, giving traders and investors the building blocks for sentiment-enhanced strategies. In this post, we revisit the Monthly Long-Only Strategy, built on the Raw-S factor and applied to S&P 500 constituents.

Which Podcasts Move Markets?

September 9, 2026

Podcast audio is abundant. Knowing where the useful financial information comes from is not. Introducing the Context Analytics Podcast Source Rating. There are now more than 4.5 million podcasts worldwide and hundreds of millions of listeners: a large, growing stream of conversation about companies, executives, industries, and market themes. The problem is no longer access. […]

Word Count Alpha by Section

September 2, 2026

Background One of CA’s previous blogs looked at SEC filings in a straightforward way: count the number of words in the whole document, measure the change in word count versus the prior filing, and sort stocks on the result. Companies whose filings barely changed outperformed. Companies that made substantial edits changing the length of the […]

From Signal to Conviction: The Moderna Move, Measured in Real Time

August 26, 2026

BACKGROUND Moderna (NASDAQ: MRNA) delivered one of the sharpest single-name reactions of the year on Wednesday, August 19th, after Moderna and Merck announced their Phase 3 INTerpath-001 trial had positive results. It is the first randomized trial to validate a personalized neoantigen cancer vaccine, a milestone with implications well beyond melanoma given the nine ongoing […]

Anatomy of a Short Squeeze: How Social Sentiment Captured the Wendy's Rally

July 1, 2026

The role of real-time social sentiment in capturing the rapid shift in investor behavior that fueled Wendy's retail-driven rally. - Written by Ayaanna Kapoor BACKGROUND Wendy's (NASDAQ: WEN) unexpectedly became one of the market's most discussed stocks last week after a surge in retail investor activity sharply increased the stock’s price. Within a single trading […]

Before the First Whistle: The World Cup Stocks Already Moving

June 17, 2026

How social sentiment captured the anticipation across U.S markets The FIFA World Cup is the single largest recurring sporting event on earth. Held every four years, it commands global viewership in the billions, generates hundreds of billions in economic activity, and for 30 to 40 days reshapes attention, spending, and consumer behavior across dozens of […]

The Predictive Value of Social Media Sentiment Scores (S-Factors): An Analysis of US Equity Returns Using a Close-to-Close Methodology

May 13, 2026

Abstract This study investigates the ability of social media sentiment to predict short-term movements in equity prices. Using proprietary sentiment metrics developed by Context Analytics (CA), specifically the S-Score, we evaluate whether extreme sentiment levels correspond to abnormal equity returns. This research aims to demonstrate the relationship between S-Score prior to market close and the […]

Twitter Sentiment on LSE: Daily S-Score Quintile Analysis

April 29, 2026

Context Analytics' S-Score has an established track record as a predictive sentiment signal in US equities. This study examines whether the same framework translates to the London Stock Exchange (LSE), extending the methodology to British-listed stocks using Twitter-derived sentiment and local pricing data. Understanding the S-Score The S-Score quantifies the sentiment of Twitter messages associated […]

Brazil's EWZ and the Predictive Power of Sentiment: How the S-Score Called the Trade

April 22, 2026

On April 14, 2026, Brazil's $EWZ ETF reached a new one-year high, driven by the critical resources uptrend and supply chain diversification. As major economies and companies seek to reduce dependence on Middle Eastern resources, Brazil's diversified and proven resource production capabilities position it for long-term success. The ETF has surged over 28% YTD, making […]

Speed Matters: Capturing Intraday Alpha from Real-Time Sentiment Shifts

April 1, 2026

Introduction In financial markets, the window between information and opportunity is measured in minutes, sometimes seconds. While daily sentiment signals have long demonstrated predictive power over next-day returns, a critical question remains: how quickly must you act on a sentiment shift to capture the alpha it implies intraday? At Context Analytics, we put this question to the test […]

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Turning Twitter Sentiment into a Monthly S&P 500 Portfolio

October 8, 2026

Which Podcasts Move Markets?

September 9, 2026

Word Count Alpha by Section

September 2, 2026

From Signal to Conviction: The Moderna Move, Measured in Real Time

August 26, 2026

Anatomy of a Short Squeeze: How Social Sentiment Captured the Wendy's Rally

July 1, 2026

Before the First Whistle: The World Cup Stocks Already Moving

June 17, 2026

The Predictive Value of Social Media Sentiment Scores (S-Factors): An Analysis of US Equity Returns Using a Close-to-Close Methodology

May 13, 2026

Twitter Sentiment on LSE: Daily S-Score Quintile Analysis

April 29, 2026

Brazil's EWZ and the Predictive Power of Sentiment: How the S-Score Called the Trade

April 22, 2026

Speed Matters: Capturing Intraday Alpha from Real-Time Sentiment Shifts

April 1, 2026

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