At the time of writing, Spero Therapeutics, Inc. (NasdaqGS:SPRO) has a Piotroski F-Score of 2. The F-Score may help discover companies with strengthening balance sheets. The score may also be used to spot the weak performers. Joseph Piotroski developed the F-Score which employs nine different variables based on the company financial statement. A single point is assigned to each test that a stock passes. Typically, a stock scoring an 8 or 9 would be seen as strong. On the other end, a stock with a score from 0-2 would be viewed as weak.

Ever wonder how investors predict positive share price momentum? The Cross SMA 50/200, also known as the “Golden Cross” is the fifty day moving average divided by the two hundred day moving average. The SMA 50/200 for Spero Therapeutics, Inc. (NasdaqGS:SPRO) is currently 1.15518. If the Golden Cross is greater than 1, then the 50 day moving average is above the 200 day moving average – indicating a positive share price momentum. If the Golden Cross is less than 1, then the 50 day moving average is below the 200 day moving average, indicating that the price might drop.

The price to book ratio or market to book ratio for Spero Therapeutics, Inc. (NasdaqGS:SPRO) currently stands at 1.855129. The ratio is calculated by dividing the stock price per share by the book value per share. This ratio is used to determine how the market values the equity. A ratio of under 1 typically indicates that the shares are undervalued. A ratio over 1 indicates that the market is willing to pay more for the shares. There are often many underlying factors that come into play with the Price to Book ratio so all additional metrics should be considered as well.

The C-Score is a system developed by James Montier that helps determine whether a company is involved in falsifying their financial statements. The C-Score is calculated by a variety of items, including a growing difference in net income verse cash flow, increasing days outstanding, growing days sales of inventory, increasing assets to sales, declines in depreciation, and high total asset growth. The C-Score of Spero Therapeutics, Inc. (NasdaqGS:SPRO) is 2.00000. The score ranges on a scale of -1 to 6. If the score is -1, then there is not enough information to determine the C-Score. If the number is at zero (0) then there is no evidence of fraudulent book cooking, whereas a number of 6 indicates a high likelihood of fraudulent activity. The C-Score assists investors in assessing the likelihood of a company cheating in the books.

Turning to Free Cash Flow Growth (FCF Growth), this is the free cash flow of the current year minus the free cash flow from the previous year, divided by last year’s free cash flow. The FCF Growth of Spero Therapeutics, Inc. (NasdaqGS:SPRO) is . Free cash flow (FCF) is the cash produced by the company minus capital expenditure. This cash is what a company uses to meet its financial obligations, such as making payments on debt or to pay out dividends. The Free Cash Flow Score (FCF Score) is a helpful tool in calculating the free cash flow growth with free cash flow stability – this gives investors the overall quality of the free cash flow.

Stock volatility is a percentage that indicates whether a stock is a desirable purchase. Investors look at the Volatility 12m to determine if a company has a low volatility percentage or not over the course of a year. The Volatility 12m of Spero Therapeutics, Inc. (NasdaqGS:SPRO) is 72.375700. This is calculated by taking weekly log normal returns and standard deviation of the share price over one year annualized.

The lower the number, a company is thought to have low volatility. The Volatility 3m is a similar percentage determined by the daily log normal returns and standard deviation of the share price over 3 months. The Volatility 3m of Spero Therapeutics, Inc. (NasdaqGS:SPRO) is 66.988100. The Volatility 6m is the same, except measured over the course of six months. The Volatility 6m is 60.935500.

**MF Rank**

The MF Rank (aka the Magic Formula) is a formula that pinpoints a valuable company trading at a good price. The formula is calculated by looking at companies that have a high earnings yield as well as a high return on invested capital. The MF Rank of Spero Therapeutics, Inc. (NasdaqGS:SPRO) is 18062. A company with a low rank is considered a good company to invest in. The Magic Formula was introduced in a book written by Joel Greenblatt, entitled, “The Little Book that Beats the Market”.

The Q.i. Value of Spero Therapeutics, Inc. (NasdaqGS:SPRO) is 90.00000. The Q.i. Value is a helpful tool in determining if a company is undervalued or not. The Q.i. Value is calculated using the following ratios: EBITDA Yield, Earnings Yield, FCF Yield, and Liquidity. The lower the Q.i. value, the more undervalued the company is thought to be.

**Value Composite**

The Value Composite One (VC1) is a method that investors use to determine a company’s value. The VC1 of Spero Therapeutics, Inc. (NasdaqGS:SPRO) is 90. A company with a value of 0 is thought to be an undervalued company, while a company with a value of 100 is considered an overvalued company. The VC1 is calculated using the price to book value, price to sales, EBITDA to EV, price to cash flow, and price to earnings. Similarly, the Value Composite Two (VC2) is calculated with the same ratios, but adds the Shareholder Yield. The Value Composite Two of Spero Therapeutics, Inc. (NasdaqGS:SPRO) is 93.

**ERP5 Rank**

The ERP5 Rank is an investment tool that analysts use to discover undervalued companies. The ERP5 looks at the Price to Book ratio, Earnings Yield, ROIC and 5 year average ROIC. The ERP5 of Spero Therapeutics, Inc. (NasdaqGS:SPRO) is 18769. The lower the ERP5 rank, the more undervalued a company is thought to be.