Fusion Antibodies (LSE:FAB) 9-Day RSI: 31.66 (As of Jul. 15, 2026)

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Director of Data and Quant Analytics at GuruFocus
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Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

LSE:FAB Fusion Antibodies PLC LSE:FAB
32 GF Score
Price £0.11
GF Value £0.04
Valuation Significantly Overvalued
! 4 Warning Signs
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What is Fusion Antibodies 9-Day RSI?

Fusion Antibodies LSE:FAB -2.27% 32 9-Day RSI is 31.66 as of Jul. 15, 2026. GuruFocus rates LSE:FAB with a GF Score™ of 32/100 and a GF Value™ of £0.04 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 1,422 Biotechnology companies, Fusion Antibodies ranks better than 85.02% on this metric.

The Relative Strength Index (RSI) is a momentum oscillator that measures the speed and change of price movements. The RSI is most typically used on a 14-day period, measured on a scale from 0 to 100. Traditionally, an asset is considered overbought or overvalued when the RSI is above 70 and oversold or undervalued when it is below 30. A shorter period RSI is more reactive to recent price changes, so it can show early signs of reversals. 9-Day RSI is sometimes used together with 14-Day RSI in a two period divergence strategy.

As of today (2026-07-15), Fusion Antibodies's 9-Day RSI is 31.66.

The industry rank for Fusion Antibodies's 9-Day RSI or its related term are showing as below:

LSE:FAB's 9-Day RSI is ranked better than
85.02% of 1422 companies
in the Biotechnology industry
Industry Median: 46.96 vs LSE:FAB: 31.66

Fusion Antibodies  (LSE:FAB) 9-Day RSI Explanation

The Relative Strength Index (RSI), developed by J. Welles Wilder in his book “New Concepts in Technical Trading Systems.”, is a momentum oscillator that measures the speed and change of price movements. The RSI is most typically used on a 14-day period, measured on a scale from 0 to 100.

Traditionally, an asset is considered overbought or overvalued when the RSI is above 70 and oversold or undervalued when it is below 30. A RSI surpasses the 30 level indicates a bullish sign, when it slides below 70 level, it’s a bearish sign. This level can be adjusted depending on the security’s pattern and the market’s underlying trend. In an uptrend or bullish market, the RSI might range within a higher interval, investors could set the support level higher. If a downtrend or bearish market occurs, investors may need to lower the resistance level.

RSI can also be used in trading techniques to indicate the trading signal, such as Divergences and Swing Rejections. A shorter period RSI is more reactive to recent price changes, so it can show early signs of reversals. 9-Day RSI is sometimes used together with 14-Day RSI in a two period divergence strategy.


Fusion Antibodies 9-Day RSI Related Terms


LSE:FAB vs VRTX, REGN, ALNY: 9-Day RSI Comparison

For the Biotechnology subindustry, Fusion Antibodies's 9-Day RSI, along with its competitors' market caps and 9-Day RSI data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Fusion Antibodies 9-Day RSI vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Fusion Antibodies's 9-Day RSI distribution charts can be found below:

* The bar in red indicates where Fusion Antibodies's 9-Day RSI falls into.


LSE:FAB
32GF Score
Fusion Antibodies PLC LSE:FAB
9-Day RSI is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Fusion Antibodies  (LSE:FAB) 9-Day RSI Calculation

The formula for calculating RSI is:

RSI=100[ 100 / ( 1 + Average Gain / Average Loss )]

* Note that the formula uses a positive value for the average loss.

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Frequently Asked Questions Learn more about 9-Day RSI →
What does a 9-Day RSI of 31.66 mean?
Fusion Antibodies (LSE:FAB) has a 9-Day RSI of 31.66 as of Jul. 15, 2026. According to the industry distribution chart, Fusion Antibodies ranks #213 out of 1422 companies in the Biotechnology industry, placing it in the top 15%.
Is Fusion Antibodies' 9-Day RSI too high?
Fusion Antibodies' current 9-Day RSI is 31.66. The Biotechnology industry median 9-Day RSI is 46.96. Fusion Antibodies' value of 31.66 is 32.6% below this industry median. Based on the distribution chart, Fusion Antibodies ranks #213 out of 1422 companies in the Biotechnology industry, which is in the top quartile — a strong position relative to peers. Overall, Fusion Antibodies has a GF Score™ of 32/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Fusion Antibodies' 9-Day RSI compare to VRTX and REGN?
According to the Biotechnology industry distribution chart, Fusion Antibodies ranks #213 out of 1422 companies for 9-Day RSI. This places Fusion Antibodies in the top 15% of its industry — outperforming the majority of peers. The industry median 9-Day RSI is 46.96. Fusion Antibodies' value of 31.66 is 32.6% below this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 9-Day RSI for a Biotechnology company?
The median 9-Day RSI among Biotechnology companies is 46.96, based on 1,422 companies in the industry. Companies in the top quartile (top 25%) have a 9-Day RSI significantly above this median, while those in the bottom quartile fall well below. However, 9-Day RSI should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Fusion Antibodies's current 9-Day RSI of 31.66 is 32.6% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high 9-Day RSI mean?
A high 9-Day RSI can signal that a stock is expensive relative to its fundamentals. For the Biotechnology industry, the median 9-Day RSI is 46.96 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Fusion Antibodies's current 9-Day RSI is 31.66. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Fusion Antibodies stock overvalued right now?
Based on GuruFocus' analysis, Fusion Antibodies (LSE:FAB) is currently considered Significantly Overvalued. The stock's GF Value™ is £0.04, compared to a current price of £0.11 — trading 168.8% above its estimated fair value. The current 9-Day RSI is 31.66 and 32.6% below the Biotechnology industry median of 46.96. Fusion Antibodies' overall GF Score™ is 32/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 9-Day RSI calculated?
9-Day RSI is calculated from a company's financial statements. For Fusion Antibodies (LSE:FAB), the current 9-Day RSI is 31.66 as of Jul. 15, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Fusion Antibodies (LSE:FAB) Overvalued in 2026?

Based on GuruFocus' analysis, Fusion Antibodies stock appears to be overvalued. The current stock price of £0.11 is trading 168.8% above its estimated GF Value™ of £0.04. GuruFocus considers Fusion Antibodies to be Significantly Overvalued.

Key valuation signals for LSE:FAB:

  • 9-Day RSI: 31.66
  • GF Value™: £0.04 vs. price of £0.11 (168.8% above fair value)
  • GF Score™: 32/100 with 4 warning signs
  • Industry Position: 32.6% below the Biotechnology median (#213 of 1422)

No single metric tells the full story. See the LSE:FAB stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Fusion Antibodies Business Description

Address 1 Springbank Road, Springbank Industrial Estate, Dunmurry, Northern Ireland, Belfast, GBR, BT17 0QL
Fusion Antibodies PLC is a Contract Research Organisation (CRO) providing antibody identification, engineering, and expression services for the discovery and development of antibodies for human and veterinary therapeutics, as well as for diagnostics. Its customers are pharmaceutical, biotech, veterinary, diagnostic, and life science research companies. The company's three core service areas include: Discovery (identification, screening, and sequencing of novel antibodies); Engineering (optimising the performance of antibodies); and Supply (production and purification of antibodies for further development). Geographically company generates the majority of its revenue from North America and the Rest of the World, followed by the United Kingdom and the Rest of Europe.
32GF Score

Get the complete analysis for LSE:FAB

9-Day RSI is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

£0.11
Price
£0.04
GF Value