FOKFX vs. VOO

Last updated Aug 4, 2026

FOKFX (Fidelity OTC K6 Portfolio) and VOO (Vanguard S&P 500 ETF) are both funds - FOKFX is a Large Cap Growth Equities fund managed by Fidelity, while VOO is a S&P 500 fund tracking the S&P 500 Index. Over the past 5 years, FOKFX returned 14.76%/yr vs 13.12%/yr for VOO. Their correlation of 0.91 means they have usually moved in the same direction. FOKFX charges 0.50%/yr vs 0.03%/yr for VOO.

Performance

FOKFX vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity OTC K6 Portfolio (FOKFX) and Vanguard S&P 500 ETF (VOO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FOKFX achieves a 19.38% return, which is significantly higher than VOO's 11.72% return.

FOKFX

• 1D: 1.42%
• 1M: -2.17%
• 6M: 16.38%
• YTD: 19.38%
• 1Y: 35.45%
• 3Y*: 27.08%
• 5Y*: 14.76%
• 10Y*: —
• ALL TIME*: 21.81%

VOO

• 1D: 1.42%
• 1M: 1.69%
• 6M: 9.53%
• YTD: 11.72%
• 1Y: 23.30%
• 3Y*: 20.85%
• 5Y*: 13.12%
• 10Y*: 15.17%
• ALL TIME*: 14.88%

*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)
FOKFX Fidelity OTC K6 Portfolio	$0.00	$0.00	$0.00
VOO Vanguard S&P 500 ETF	$3.97B	$3.80B	$5.49B

FOKFX vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
FOKFX Fidelity OTC K6 Portfolio	19.38%	20.30%	34.58%	43.48%	-32.32%	25.95%	47.52%	17.08%
VOO Vanguard S&P 500 ETF	11.72%	17.82%	24.98%	26.32%	-18.17%	28.79%	18.32%	13.35%

Correlation

The correlation between FOKFX and VOO is 0.90, meaning they have usually moved in the same direction, including during past declines.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.90
Correlation (3Y) Balances recent behavior with more history.	0.89
Correlation (5Y) Shows whether the relationship held over a longer period.	0.92
Correlation (All Time) Calculated using the full available price history since Jun 13, 2019	0.91

The correlation between FOKFX and VOO has been stable across timeframes, ranging from 0.89 to 0.92 - a consistent structural relationship.

Return for Risk

FOKFX vs. VOO — Risk / Return Rank

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

FOKFX

FOKFX Risk / Return Rank: 59
FOKFX Sharpe Ratio Rank: 56
FOKFX Sortino Ratio Rank: 50
FOKFX Omega Ratio Rank: 47
FOKFX Calmar Ratio Rank: 77
FOKFX Martin Ratio Rank: 66

VOO

VOO Risk / Return Rank: 78
VOO Sharpe Ratio Rank: 79
VOO Sortino Ratio Rank: 77
VOO Omega Ratio Rank: 78
VOO Calmar Ratio Rank: 74
VOO Martin Ratio Rank: 83

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.

FOKFX vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity OTC K6 Portfolio (FOKFX) and Vanguard S&P 500 ETF (VOO). 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.

	FOKFX	VOO	Difference
Sharpe ratio: Return per unit of total volatility	1.53	1.83	-0.31
Sortino ratio: Return per unit of downside risk	2.08	2.53	-0.44
Omega ratio: Gain probability vs. loss probability	1.26	1.33	-0.07
Calmar ratio: Return relative to maximum drawdown	2.61	2.63	-0.02
Martin ratio: Return relative to average drawdown	8.85	11.23	-2.39

FOKFX vs. VOO - Sharpe Ratio Comparison

The current FOKFX Sharpe Ratio is 1.53, which is comparable to the VOO Sharpe Ratio of 1.83. The chart below compares the historical Sharpe Ratios of FOKFX and VOO, 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

FOKFX vs. VOO - Drawdown Comparison

The maximum FOKFX drawdown since its inception was -37.26%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for FOKFX and VOO.

Drawdown Indicators

	FOKFX	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-37.26%	-33.99%	-3.27%
Max Drawdown (1Y) Largest decline over 1 year	-12.53%	-8.90%	-3.63%
Max Drawdown (3Y) Largest decline over 3 years	-24.81%	-18.69%	-6.12%
Max Drawdown (5Y) Largest decline over 5 years	-37.26%	-24.52%	-12.74%
Max Drawdown (10Y) Largest decline over 10 years	—	-33.99%	—
Current Drawdown Current decline from peak	-6.73%	0.00%	-6.73%
Average Drawdown Average peak-to-trough decline	-9.09%	-3.67%	-5.42%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.69%	2.08%	+1.61%

Volatility

FOKFX vs. VOO - Volatility Comparison

Fidelity OTC K6 Portfolio (FOKFX) has a higher volatility of 6.36% compared to Vanguard S&P 500 ETF (VOO) at 3.81%. This indicates that FOKFX's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FOKFX	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.36%	3.81%	+2.55%
Volatility (6M) Calculated over the trailing 6-month period	17.72%	10.18%	+7.54%
Volatility (1Y) Calculated over the trailing 1-year period	21.46%	12.80%	+8.66%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.47%	16.95%	+6.52%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	24.72%	18.02%	+6.70%

FOKFX vs. VOO - Expense Ratio Comparison

FOKFX has a 0.50% expense ratio, which is higher than VOO's 0.03% expense ratio.

Dividends

FOKFX vs. VOO - Dividend Comparison

FOKFX's dividend yield for the trailing twelve months is around 3.52%, more than VOO's 1.05% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FOKFX Fidelity OTC K6 Portfolio	3.52%	4.20%	4.58%	0.24%	0.08%	3.81%	0.39%	0.32%	0.00%	0.00%	0.00%	0.00%
VOO Vanguard S&P 500 ETF	1.05%	1.13%	1.24%	1.46%	1.69%	1.25%	1.54%	1.88%	2.06%	1.78%	2.02%	2.10%

Frequently Asked Questions

Can I hold both FOKFX and VOO in my portfolio?

With a correlation of 0.90, FOKFX and VOO move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, FOKFX or VOO?

FOKFX has higher volatility (6.36%) compared to VOO (3.81%). In terms of maximum drawdown, FOKFX dropped -37.26% vs VOO's -33.99%.

Which has better risk-adjusted returns?

VOO currently has the higher Sharpe Ratio (1.83 vs 1.53), 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.