Avoid the stress of overpaying for a stock or missing an opportunity by using the right tools and insights to evaluate Quantum-Si incorporated before investing.

In this article, we go over a few key elements for understanding Quantum-Si incorporated’s stock price such as:

• Quantum-Si incorporated’s current stock price and volume
• Why Quantum-Si incorporated’s stock price changed recently
• Upgrades and downgrades for QSI from analysts
• QSI’s stock price momentum as measured by its relative strength

About Quantum-Si incorporated (QSI)

Before we jump into Quantum-Si incorporated’s stock price, history, target price and what caused it to recently dip, let’s take a look at some background.

Quantum-Si incorporated, a life sciences company, engages in the development of single-molecule detection platform to enable Next Generation Protein Sequencing (NGPS). The company offers Platinum NGPS instrument that provides single molecule amino acid level resolution with a streamlined workflow, including automated data analysis that accessible to researchers in all laboratory types; Platinum Pro NGPS instrument, a single molecule amino acid resolution, which provides an enhanced user interface, cloud or on instrument data analysis and an available pro mode; Library preparation kits to prepare protein sample for sequencing; Barcoding Kits to optimize the workflow and performance of technology; and Sequencing Kits contains the reagents and consumables used to perform NGPS on the Platinum or Platinum Pro instrument. It also provides Platinum Analysis Software, a cloud-based solution that automates data analysis workflows and provides a user-friendly interface and visualization of the sequencing results. Its products are used in antibody characterization, biomarker identification, protein identification, protein variants, protein barcoding, and post translational modification analysis applications. Quantum-Si incorporated was founded in 2013 is headquartered in Branford, Connecticut.

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Quantum-Si incorporated’s Stock Price as of Market Close

As of May 05, 2025, 12:47 PM, CST, Quantum-Si incorporated’s stock price was $1.195.

Quantum-Si incorporated is down 5.16% from its previous closing price of $1.260.

During the last market session, Quantum-Si incorporated’s stock traded between $1.170 and $1.250. Currently, there are approximately 146.33 million shares outstanding for Quantum-Si incorporated.

Quantum-Si incorporated’s trailing earnings per share are negative, so the stock does not have a meaningful P/E ratio. We suggest investors evaluate other financial metrics to understand its overall valuation.

Quantum-Si incorporated Stock Price History

Quantum-Si incorporated’s (QSI) price is currently up 4.82% so far this month.

During the month of May, Quantum-Si incorporated’s stock price has reached a high of $1.280 and a low of $1.120.

Over the last year, Quantum-Si incorporated has hit prices as high as $5.770 and as low as $0.612. Year to date, Quantum-Si incorporated’s stock is down 55.74%.

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What Caused Quantum-Si incorporated Stock’s Price to Dip?

Stock prices are primarily based on seller supply and buyer demand. But have you ever wondered about what other factors affect a stock's price?

One of the most common factors that can drastically impact a stock’s price is analyst upgrades and downgrades. When an analyst changes their opinion of a stock by upgrading or downgrading their rating, it often leads to a sudden stock price adjustment. However, as of May 02, 2025,, no analysts have changed their rating of Quantum-Si incorporated’s stock over the last month.

Additionally, you'll want to evaluate Quantum-Si incorporated’s financial health and valuation. Investors can use AAII's Value Grade, which combines six key valuation metrics like P/E and P/S ratios for a comprehensive analysis to conduct analysis on Quantum-Si incorporated’s valuation and financial health. This approach mitigates the limitations of single-metric evaluations.

Quantum-Si incorporated’s current valuation based on AAII’s Value Grade is a D, which means it is considered to be Expensive.

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Lastly, news and media coverage as well as recent press reports about the company or its industry may cause stock prices to fluctuate. You can check out the most recent news articles about Quantum-Si incorporated (QSI) by visiting AAII Stock Evaluator.

Relative Price Strength of Quantum-Si incorporated

Relative price strength measures a stock's performance against the market, helping investors identify stocks that are outperforming benchmarks.

For AAII’s Momentum Grade, a weighted relative price strength is calculated. Follow this link to learn more about the Momentum Grade.

As of May 02, 2025, Quantum-Si incorporated has a weighted four-quarter relative price strength of 1.08%, which translates to a Momentum Score of 62 and is considered to be Strong.

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Quantum-Si incorporated Stock Price: Bottom Line

As of May 5, 2025, Quantum-Si incorporated’s stock price is $1.195, which is down 5.16% from its previous closing price.

AAII advises against making stock decisions based solely on price or past returns. Instead, consider a variety of metrics, fundamentals, and analytics to evaluate a stock like Quantum-Si incorporated stock prices are influenced by market supply and demand and offer just a snapshot of a company's overall health.

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