PRCT vs. FDFIX

Last updated Aug 1, 2026

PRCT (PROCEPT BioRobotics Corporation) is a stock, while FDFIX (Fidelity Flex 500 Index Fund) is Large Cap Blend Equities fund tracking the Fidelity U.S. Large Cap Index. Over the past 3 years, PRCT returned -18.12%/yr vs 18.85%/yr for FDFIX. Their 0.32 correlation means their historical movements had little consistent relationship.

Performance

PRCT vs. FDFIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in PROCEPT BioRobotics Corporation (PRCT) and Fidelity Flex 500 Index Fund (FDFIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PRCT achieves a -40.81% return, which is significantly lower than FDFIX's 9.08% return.

PRCT

• 1D: 3.44%
• 1M: -11.46%
• 6M: -35.70%
• YTD: -40.81%
• 1Y: -62.73%
• 3Y*: -18.12%
• 5Y*: —
• 10Y*: —
• ALL TIME*: -12.15%

FDFIX

• 1D: 1.70%
• 1M: -0.67%
• 6M: 7.78%
• YTD: 9.08%
• 1Y: 20.10%
• 3Y*: 18.85%
• 5Y*: 12.59%
• 10Y*: —
• ALL TIME*: 14.73%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
FDFIX Fidelity Flex 500 Index Fund	$0.00	$0.00	$0.00
PRCT PROCEPT BioRobotics Corporation	$23.55M	$28.81M	$36.39M

PRCT vs. FDFIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
PRCT PROCEPT BioRobotics Corporation	-40.81%	-60.93%	92.13%	0.89%	66.09%	-28.54%
FDFIX Fidelity Flex 500 Index Fund	9.08%	17.59%	25.06%	26.27%	-18.10%	7.68%

Correlation

The correlation between PRCT and FDFIX is 0.22, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.22
Correlation (3Y) Balances recent behavior with more history.	0.31
Correlation (All Time) Calculated using the full available price history since Sep 15, 2021	0.32

The correlation between PRCT and FDFIX shifts across timeframes, from 0.22 (1 year) to 0.32 (all time), reflecting how their relationship changes across market environments.

Return for Risk

PRCT vs. FDFIX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

PRCT

PRCT Risk / Return Rank: 6
PRCT Sharpe Ratio Rank: 5
PRCT Sortino Ratio Rank: 5
PRCT Omega Ratio Rank: 7
PRCT Calmar Ratio Rank: 6
PRCT Martin Ratio Rank: 7

FDFIX

FDFIX Risk / Return Rank: 59
FDFIX Sharpe Ratio Rank: 56
FDFIX Sortino Ratio Rank: 53
FDFIX Omega Ratio Rank: 54
FDFIX Calmar Ratio Rank: 61
FDFIX Martin Ratio Rank: 70

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

PRCT vs. FDFIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for PROCEPT BioRobotics Corporation (PRCT) and Fidelity Flex 500 Index Fund (FDFIX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	PRCT	FDFIX	Difference
Sharpe ratio: Return per unit of total volatility	-0.98	1.38	-2.35
Sortino ratio: Return per unit of downside risk	-1.63	1.93	-3.56
Omega ratio: Gain probability vs. loss probability	0.82	1.25	-0.43
Calmar ratio: Return relative to maximum drawdown	-0.93	1.99	-2.92
Martin ratio: Return relative to average drawdown	-1.46	8.36	-9.82

PRCT vs. FDFIX - Sharpe Ratio Comparison

The current PRCT Sharpe Ratio is -0.98, which is lower than the FDFIX Sharpe Ratio of 1.38. The chart below compares the historical Sharpe Ratios of PRCT and FDFIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

PRCT vs. FDFIX - Drawdown Comparison

The maximum PRCT drawdown since its inception was -83.22%, which is greater than FDFIX's maximum drawdown of -33.77%. Use the drawdown chart below to compare losses from any high point for PRCT and FDFIX.

Drawdown Indicators

	PRCT	FDFIX	Difference
Max Drawdown Largest peak-to-trough decline	-83.22%	-33.77%	-49.45%
Max Drawdown (1Y) Largest decline over 1 year	-66.59%	-8.99%	-57.60%
Max Drawdown (3Y) Largest decline over 3 years	-83.22%	-18.76%	-64.46%
Max Drawdown (5Y) Largest decline over 5 years	—	-24.51%	—
Current Drawdown Current decline from peak	-81.28%	-2.20%	-79.08%
Average Drawdown Average peak-to-trough decline	-33.17%	-4.53%	-28.64%
Ulcer Index Depth and duration of drawdowns from previous peaks	42.20%	2.14%	+40.06%

Volatility

PRCT vs. FDFIX - Volatility Comparison

PROCEPT BioRobotics Corporation (PRCT) has a higher volatility of 19.68% compared to Fidelity Flex 500 Index Fund (FDFIX) at 3.50%. This indicates that PRCT's price experiences larger fluctuations and is considered to be riskier than FDFIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PRCT	FDFIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	19.68%	3.50%	+16.18%
Volatility (6M) Calculated over the trailing 6-month period	49.70%	10.20%	+39.50%
Volatility (1Y) Calculated over the trailing 1-year period	63.51%	13.02%	+50.49%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	65.49%	17.07%	+48.42%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	65.49%	18.53%	+46.96%

Dividends

PRCT vs. FDFIX - Dividend Comparison

PRCT has not paid dividends to shareholders, while FDFIX's dividend yield for the trailing twelve months is around 1.07%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
FDFIX Fidelity Flex 500 Index Fund	1.07%	1.11%	1.26%	1.48%	1.70%	1.27%	1.52%	1.78%	2.16%	0.50%
PRCT PROCEPT BioRobotics Corporation	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both PRCT and FDFIX in my portfolio?

PRCT and FDFIX have a correlation of 0.22, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PRCT or FDFIX?

PRCT has higher volatility (19.68%) compared to FDFIX (3.50%). In terms of maximum drawdown, PRCT dropped -83.22% vs FDFIX's -33.77%.

Which has better risk-adjusted returns?

FDFIX currently has the higher Sharpe Ratio (1.38 vs -0.98), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.