BELFA vs. RAPT

Last updated Jun 4, 2026

BELFA (Bel Fuse Inc.) and RAPT (RAPT Therapeutics, Inc.) are both stocks. BELFA operates in Electronic Components (Technology), while RAPT operates in Biotechnology (Healthcare). At a 0.13 correlation, their price movements are largely independent.

Performance

BELFA vs. RAPT - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Bel Fuse Inc. (BELFA) and RAPT Therapeutics, Inc. (RAPT). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

BELFA

• 1D: 4.52%
• 1M: -3.43%
• YTD: 63.86%
• 6M: 78.51%
• 1Y: 280.48%
• 3Y*: 72.63%
• 5Y*: 77.32%
• 10Y*: 33.62%

RAPT

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

BELFA vs. RAPT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
BELFA Bel Fuse Inc.	63.86%	68.98%	39.80%	102.03%	117.06%	14.81%	-16.19%	19.91%
RAPT RAPT Therapeutics, Inc.	71.30%	167.96%	-93.64%	25.51%	-46.09%	85.97%	-28.47%	112.38%

Correlation

The correlation between BELFA and RAPT is 0.06, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.06
Correlation (3Y) Calculated over the trailing 3-year period	0.16
Correlation (5Y) Calculated over the trailing 5-year period	0.14
Correlation (All Time) Calculated using the full available price history since Nov 1, 2019	0.13

Fundamentals

Market Cap BELFA : $525.75M RAPT : $1.56B
EPS BELFA : $7.60 RAPT : -$3.92
PB Ratio BELFA : 0.55 RAPT : 10.29
Total Revenue (TTM) BELFA : $701.71M RAPT : $0.00
Gross Profit (TTM) BELFA : $275.20M RAPT : -$200.00K
EBITDA (TTM) BELFA : $135.78M RAPT : -$108.01M

Return for Risk

BELFA vs. RAPT — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

BELFA

BELFA Risk / Return Rank: 97
BELFA Sharpe Ratio Rank: 99
BELFA Sortino Ratio Rank: 96
BELFA Omega Ratio Rank: 95
BELFA Calmar Ratio Rank: 98
BELFA Martin Ratio Rank: 99

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

BELFA vs. RAPT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Bel Fuse Inc. (BELFA) and RAPT Therapeutics, Inc. (RAPT). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	BELFA	RAPT	Difference
Sharpe ratio Return per unit of total volatility	5.23	—	—
Sortino ratio Return per unit of downside risk	4.51	—	—
Omega ratio Gain probability vs. loss probability	1.60	—	—
Calmar ratio Return relative to maximum drawdown	12.95	—	—
Martin ratio Return relative to average drawdown	40.30	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	BELFA	RAPT	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	5.23	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.56	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.55	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.13	—	—

Drawdowns

Drawdown Indicators

	BELFA	RAPT	Difference
Max Drawdown Largest peak-to-trough decline	-89.86%	—	—
Max Drawdown (1Y) Largest decline over 1 year	-21.82%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-43.43%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-43.43%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-78.04%	—	—
Current Drawdown Current decline from peak	-8.19%	—	—
Average Drawdown Average peak-to-trough decline	-50.49%	—	—
Ulcer Index Depth and duration of drawdowns from previous peaks	7.00%	—	—

Volatility

Volatility by Period

	BELFA	RAPT	Difference
Volatility (1M) Calculated over the trailing 1-month period	17.70%	—	—
Volatility (6M) Calculated over the trailing 6-month period	38.78%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	54.07%	—	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	49.81%	—	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	60.87%	—	—

Dividends

BELFA vs. RAPT - Dividend Comparison

BELFA's dividend yield for the trailing twelve months is around 0.10%, while RAPT has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BELFA Bel Fuse Inc.	0.10%	0.16%	0.27%	0.39%	0.78%	1.60%	1.81%	1.48%	1.75%	1.10%	0.95%	1.64%
RAPT RAPT Therapeutics, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Financials

Frequently Asked Questions

Can I hold both BELFA and RAPT in my portfolio?

BELFA and RAPT have a correlation of 0.06, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.