SPRO

$2.63+0.04 (+1.35%)

Market OpenAs of Mar 17, 4:43 PM UTC

Spero Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on identifying and developing novel treatments for multi-drug resistant (MDR) bacterial infections and rare diseases in the United States.

Historical Price

Price (Line)
50-Day SMA
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Peer Comparison

JNJUNHPFE

Whystock Valuation Model

Calculated using a trailing P/E relative model adjusted by sector ROE and historical growth.
Current Price$2.63
Potential Upside
5%
Whystock Fair Value$2.76
Price
UndervaluedFair ValueOvervalued

Fundamentals

SectorHealthcare
IndustryBiotechnology

Spero Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on identifying and developing novel treatments for multi-drug resistant (MDR) bacterial infections and rare diseases in the United States. The company's product candidates ...

Market Cap
Total dollar market value of a company's outstanding shares of stock (Price * Shares).
$147.89M
P/E Ratio
Priced for growth. Investors expect sustained double-digit expansion.
-
Beta
High-beta play. Expect amplified moves vs. the broad market.
1.53
Div Yield
Low to zero yield. Return is entirely dependent on price appreciation.
0.00%
ROIC
Average efficiency. Growth may require heavy reinvestment.
-95.30%
Quick Ratio
Pristine liquidity. Sufficient cash to cover all near-term obligations.
3.74

Recent News

Simply Wall St.
Feb 5, 2026

Airgain And 2 Other Promising Penny Stocks

As February begins, the U.S. stock market has shown a robust start with major indexes like the Dow Jones Industrial Average and S&P 500 ending sharply higher. For those looking to invest in smaller or newer companies, penny stocks—despite their name's vintage feel—can still offer surprising value. This article explores three penny stocks that demonstrate financial strength and potential for long-term growth, offering an intriguing opportunity for investors seeking to diversify their...

BULLISH
Positive press. Headlines skewed toward growth and analyst upgrades.
Simply Wall St.
Jan 7, 2026

3 Promising Penny Stocks With Market Caps Up To $300M

Major stock indexes in the United States have recently shown mixed performance, with the Dow Jones Industrial Average and S&P 500 setting fresh all-time highs. Amid these fluctuating market conditions, investors are increasingly exploring diverse opportunities to maximize potential returns. Penny stocks, though a term from earlier market days, continue to represent intriguing investment prospects by offering access to smaller or newer companies at lower price points. By identifying those with...

BULLISH
Positive press. Headlines skewed toward growth and analyst upgrades.
Simply Wall St.
Dec 15, 2025

Is Spero Therapeutics (NASDAQ:SPRO) In A Good Position To Deliver On Growth Plans?

Even when a business is losing money, it's possible for shareholders to make money if they buy a good business at the...

BULLISH
Positive press. Headlines skewed toward growth and analyst upgrades.
Simply Wall St.
Nov 4, 2025

3 Promising Penny Stocks With Market Caps Over $20M

Major stock indexes in the United States have recently experienced a pullback, with technology shares leading the decline. Despite these broader market challenges, certain investment opportunities remain attractive, particularly within the realm of penny stocks. While often associated with smaller or newer companies, penny stocks can offer significant growth potential when backed by strong financials. In this article, we will explore several such stocks that stand out for their financial...

BULLISH
Positive press. Headlines skewed toward growth and analyst upgrades.
Zacks
Oct 10, 2025

Best Momentum Stock to Buy for October 10th

SPRO made it to the Zacks Rank #1 (Strong Buy) momentum stock list on October 10, 2025.

BULLISH
Positive press. Headlines skewed toward growth and analyst upgrades.