SPRO vs FONR

Comparison between Spero Therapeutics Inc (SPRO, Company) and Fonar Corp (FONR, Company).

Both SPRO and FONR are from the Healthcare sector.

5-Year PerformanceFONR has outperformed SPRO, delivering a return of +1.0% compared to -31.1%

SPRO vs FONR - Performance Comparison

Log

Key Characteristics

Financial metrics and valuation ratios

Metric	SPRO(COMPANY)	FONR(COMPANY)
Market Cap	$132M	$131M
Max Drawdown	97.46%	99.44%
Sharpe Ratio	-0.17	0.89
5Y Beta	0.69	N/A
Industry	Biotechnology	Diagnostics & Research
P/E Ratio	8.35	15.48
Forward P/E	N/A	10.88
5Y Dividends CAGR	30.26%	N/A
5Y EPS CAGR	N/A	-10.95%
Debt to Equity	0.00%	0.00%
Free Cash Flow Yield	5.49%	3.49%

Market Cap

Winner

SPRO

$132M

FONR

$131M

Max Drawdown

Winner

SPRO

97.46%

FONR

99.44%

Sharpe Ratio

SPRO

-0.17

Winner

FONR

0.89

5Y Beta

SPRO

0.69

FONR

N/A

Industry

SPRO

Biotechnology

FONR

Diagnostics & Research

P/E Ratio

Winner

SPRO

8.35

FONR

15.48

Forward P/E

SPRO

N/A

FONR

10.88

5Y Dividends CAGR

SPRO

30.26%

FONR

N/A

5Y EPS CAGR

SPRO

N/A

FONR

-10.95%

Debt to Equity

SPRO

0.00%

FONR

0.00%

Free Cash Flow Yield

Winner

SPRO

5.49%

FONR

3.49%

SPRO vs FONR - Historical Returns

Returns include dividend reinvestment.

Period	SPRO	FONR
1 month	-11.63%	+1.01%
3 months	-7.32%	+2.80%
6 months	-0.44%	+30.66%
1 year	-22.45%	+31.66%
5 years(CAGR)	-31.09%	+1.00%
10 years(CAGR)	-4.16%	+1.47%
Max(CAGR)	-1.34%	-0.36%

SPRO

-11.63%

Winner

FONR

+1.01%

SPRO

-7.32%

Winner

FONR

+2.80%

SPRO

-0.44%

Winner

FONR

+30.66%

SPRO

-22.45%

Winner

FONR

+31.66%

5Y(CAGR)

SPRO

-31.09%

Winner

FONR

+1.00%

10Y(CAGR)

SPRO

-4.16%

Winner

FONR

+1.47%

Max(CAGR)

SPRO

-1.34%

Winner

FONR

-0.36%

SPRO vs FONR - Annual Returns (1999 - 2026)

Returns include dividend reinvestment.

Year	SPRO	FONR
2026	-2.98%	+3.11%
2025	+115.74%	+22.91%
2024	-32.24%	-24.68%
2023	-15.52%	+16.08%
2022	-88.58%	+11.30%
2021	-10.71%	-18.23%
2020	+96.45%	-14.02%
2019	+53.59%	-7.34%
2018	-49.34%	-16.88%
2017	+2.17%	+26.66%
2016	N/A	+14.12%
2015	+125.03%	+68.23%
2014	-36.85%	-48.44%
2013	+87.73%	+361.04%
2012	-15.94%	+150.29%
2011	-18.88%	+31.08%
2010	-29.17%	-23.53%
2009	+37.55%	+70.65%
2008	-59.66%	-84.40%
2007	+44.06%	-30.32%
2006	+26.56%	-60.34%
2005	-15.34%	-56.69%
2004	+7.04%	+35.34%
2003	N/A	+7.48%
2002	N/A	-12.30%
2001	N/A	-9.37%
2000	N/A	-29.95%
1999	N/A	+101.19%

SPRO vs FONR Drawdown Comparison

The maximum drawdown for SPRO was -97.46%, occurring on Apr 8, 2025. This drawdown has not yet recovered.

The maximum drawdown for FONR was -99.44%, occurring on Mar 6, 2009. This drawdown has not yet recovered.

The current SPRO drawdown is -89.67%. The current FONR drawdown is -83.03%.

Rank	SPRO	FONR
#1	-97.46% Dec 28, 2020 - Apr 8, 2025	-99.44% Mar 13, 2000 - Mar 6, 2009
#2	-85.13% Jul 17, 2007 - Nov 2, 2017	-46.00% Nov 22, 1999 - Mar 3, 2000
#3	-70.48% Apr 12, 2018 - Dec 8, 2020	-7.14% Nov 1, 1999 - Nov 8, 1999
#4	-42.56% May 17, 2005 - Feb 16, 2007	-6.23% Mar 6, 2000 - Mar 10, 2000
#5	-32.47% Nov 13, 2017 - Apr 9, 2018	-6.00% Nov 10, 1999 - Nov 19, 1999
#6	-18.79% Mar 12, 2007 - Jun 19, 2007	N/A
#7	-9.16% Jun 25, 2007 - Jul 3, 2007	N/A
#8	-8.75% Dec 3, 2004 - Mar 28, 2005	N/A
#9	-5.73% Feb 21, 2007 - Mar 7, 2007	N/A
#10	-5.34% Dec 8, 2020 - Dec 16, 2020	N/A
#11	-4.94% Mar 28, 2005 - May 11, 2005	N/A
#12	-4.48% Dec 17, 2020 - Dec 21, 2020	N/A
#13	-4.01% Jul 9, 2007 - Jul 13, 2007	N/A
#14	-2.82% Nov 22, 2004 - Nov 24, 2004	N/A
#15	-2.50% Nov 24, 2004 - Dec 1, 2004	N/A