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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.
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.
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.
Willis Lease Finance 9-Day RSI Related Terms
WLFC vs PRG, LIME, VSTS: 9-Day RSI Comparison
For the Rental & Leasing Services subindustry, Willis Lease Finance'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.
Willis Lease Finance 9-Day RSI vs Business Services Industry
For the Business Services industry and Industrials sector, Willis Lease Finance's 9-Day RSI distribution charts can be found below:
* The bar in red indicates where Willis Lease Finance's 9-Day RSI falls into.
* 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.
Willis Lease Finance (WLFC) has a 9-Day RSI of 33.88 as of Aug. 26, 2026. According to the industry distribution chart, Willis Lease Finance ranks #145 out of 1123 companies in the Business Services industry, placing it in the top 12.9%.
Is Willis Lease Finance's 9-Day RSI too high?
Willis Lease Finance's current 9-Day RSI is 33.88. The Business Services industry median 9-Day RSI is 51.85. Willis Lease Finance's value of 33.88 is 34.7% below this industry median. Based on the distribution chart, Willis Lease Finance ranks #145 out of 1123 companies in the Business Services industry, which is in the top quartile — a strong position relative to peers. Overall, Willis Lease Finance has a GF Score™ of 93/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Willis Lease Finance's 9-Day RSI compare to PRG and LIME?
According to the Business Services industry distribution chart, Willis Lease Finance ranks #145 out of 1123 companies for 9-Day RSI. This places Willis Lease Finance in the top 13% of its industry — outperforming the majority of peers. The industry median 9-Day RSI is 51.85. Willis Lease Finance's value of 33.88 is 34.7% 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 Business Services company?
The median 9-Day RSI among Business Services companies is 51.85, based on 1,123 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. Willis Lease Finance's current 9-Day RSI of 33.88 is 34.7% 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 Business Services industry, the median 9-Day RSI is 51.85 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Willis Lease Finance's current 9-Day RSI is 33.88. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Willis Lease Finance stock overvalued right now?
Based on GuruFocus' analysis, Willis Lease Finance (WLFC) is currently considered Fairly Valued. The stock's GF Value™ is $55.15, compared to a current price of $55.07 — trading 0.1% below its estimated fair value. The current 9-Day RSI is 33.88 and 34.7% below the Business Services industry median of 51.85. Willis Lease Finance's overall GF Score™ is 93/100 with 5 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 Willis Lease Finance (WLFC), the current 9-Day RSI is 33.88 as of Aug. 26, 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 Willis Lease Finance (WLFC) Overvalued in 2026?
Based on GuruFocus' analysis, Willis Lease Finance stock appears to be undervalued.
The current stock price of $55.07 is trading 0.1% below its estimated GF Value™ of $55.15.
GuruFocus considers Willis Lease Finance to be Fairly Valued.
Key valuation signals for WLFC:
9-Day RSI: 33.88
GF Value™: $55.15 vs. price of $55.07 (0.1% below fair value)
Industry Position: 34.7% below the Business Services median (#145 of 1123)
No single metric tells the full story. See the WLFC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Willis Lease Finance Corp, with its subsidiaries, is a lessor and servicer of commercial aircraft and aircraft engines. The company has two reportable business segments, which include Leasing and Related Operations and Spare Parts Sales. A majority of its revenue is generated from the Leasing and Related Operations segment, which involves acquiring and leasing, under operating leases, commercial aircraft, aircraft engines, and other aircraft equipment and the selective purchase and resale of commercial aircraft engines, aircraft equipment, and other related businesses. Geographically, the company derives maximum Lease rent revenue from the United States, followed by Europe, Asia-Pacific (excluding India), India, South America, Canada, Central America, and the Middle East.
93GF Score
Get the complete analysis for WLFC
9-Day RSI is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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