PDFDX vs. FIKCX

Last updated Jun 24, 2026

PDFDX (Perkins Discovery Fund) and FIKCX (Fidelity Advisor Health Care Fund Class Z) are both Health & Biotech Equities funds. Over the past 5 years, PDFDX returned -5.62%/yr vs 0.50%/yr for FIKCX. A 0.73 correlation means they provide meaningful diversification when combined. PDFDX charges 2.50%/yr vs 0.59%/yr for FIKCX.

Performance

PDFDX vs. FIKCX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Perkins Discovery Fund (PDFDX) and Fidelity Advisor Health Care Fund Class Z (FIKCX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PDFDX achieves a 4.69% return, which is significantly higher than FIKCX's 1.22% return.

PDFDX

• 1D: -1.14%
• 1M: 3.89%
• YTD: 4.69%
• 6M: 3.16%
• 1Y: 33.98%
• 3Y*: 9.14%
• 5Y*: -5.62%
• 10Y*: 10.62%

FIKCX

• 1D: 1.14%
• 1M: 4.48%
• YTD: 1.22%
• 6M: -0.13%
• 1Y: 22.67%
• 3Y*: 3.56%
• 5Y*: 0.50%
• 10Y*: —

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

PDFDX vs. FIKCX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
PDFDX Perkins Discovery Fund	4.69%	9.94%	19.19%	10.77%	-39.93%	2.11%	62.16%	15.01%	-13.84%
FIKCX Fidelity Advisor Health Care Fund Class Z	1.22%	14.61%	-5.73%	4.20%	-12.74%	11.66%	21.55%	28.39%	-11.04%

Correlation

The correlation between PDFDX and FIKCX is 0.59, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.59
Correlation (3Y) Calculated over the trailing 3-year period	0.64
Correlation (5Y) Calculated over the trailing 5-year period	0.72
Correlation (All Time) Calculated using the full available price history since Oct 17, 2018	0.73

The correlation between PDFDX and FIKCX shifts across timeframes, from 0.59 (1 year) to 0.73 (all time), reflecting how their relationship changes across market environments.

Return for Risk

PDFDX vs. FIKCX — Risk / Return Rank

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

PDFDX

PDFDX Risk / Return Rank: 25
PDFDX Sharpe Ratio Rank: 27
PDFDX Sortino Ratio Rank: 30
PDFDX Omega Ratio Rank: 25
PDFDX Calmar Ratio Rank: 22
PDFDX Martin Ratio Rank: 19

FIKCX

FIKCX Risk / Return Rank: 26
FIKCX Sharpe Ratio Rank: 28
FIKCX Sortino Ratio Rank: 31
FIKCX Omega Ratio Rank: 25
FIKCX Calmar Ratio Rank: 25
FIKCX Martin Ratio Rank: 19

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.

PDFDX vs. FIKCX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Perkins Discovery Fund (PDFDX) and Fidelity Advisor Health Care Fund Class Z (FIKCX). 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.

	PDFDX	FIKCX	Difference
Sharpe ratio: Return per unit of total volatility	1.37	1.40	-0.03
Sortino ratio: Return per unit of downside risk	2.10	2.13	-0.03
Omega ratio: Gain probability vs. loss probability	1.24	1.24	0.00
Calmar ratio: Return relative to maximum drawdown	1.60	1.72	-0.12
Martin ratio: Return relative to average drawdown	4.51	4.55	-0.04

PDFDX vs. FIKCX - Sharpe Ratio Comparison

The current PDFDX Sharpe Ratio is 1.37, which is comparable to the FIKCX Sharpe Ratio of 1.40. The chart below compares the historical Sharpe Ratios of PDFDX and FIKCX, 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

PDFDX vs. FIKCX - Drawdown Comparison

The maximum PDFDX drawdown since its inception was -67.44%, which is greater than FIKCX's maximum drawdown of -29.19%. Use the drawdown chart below to compare losses from any high point for PDFDX and FIKCX.

Drawdown Indicators

	PDFDX	FIKCX	Difference
Max Drawdown Largest peak-to-trough decline	-67.44%	-29.19%	-38.25%
Max Drawdown (1Y) Largest decline over 1 year	-22.11%	-13.35%	-8.76%
Max Drawdown (3Y) Largest decline over 3 years	-31.75%	-25.31%	-6.44%
Max Drawdown (5Y) Largest decline over 5 years	-59.95%	-29.19%	-30.76%
Max Drawdown (10Y) Largest decline over 10 years	-62.70%	—	—
Current Drawdown Current decline from peak	-32.92%	-4.99%	-27.93%
Average Drawdown Average peak-to-trough decline	-25.73%	-9.26%	-16.47%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.81%	5.05%	+2.76%

Volatility

PDFDX vs. FIKCX - Volatility Comparison

The current volatility for Perkins Discovery Fund (PDFDX) is 4.49%, while Fidelity Advisor Health Care Fund Class Z (FIKCX) has a volatility of 5.87%. This indicates that PDFDX experiences smaller price fluctuations and is considered to be less risky than FIKCX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PDFDX	FIKCX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.49%	5.87%	-1.38%
Volatility (6M) Calculated over the trailing 6-month period	17.89%	12.67%	+5.22%
Volatility (1Y) Calculated over the trailing 1-year period	25.94%	16.45%	+9.49%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	29.78%	18.47%	+11.31%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	28.96%	20.29%	+8.67%

PDFDX vs. FIKCX - Expense Ratio Comparison

PDFDX has a 2.50% expense ratio, which is higher than FIKCX's 0.59% expense ratio.

Dividends

PDFDX vs. FIKCX - Dividend Comparison

PDFDX's dividend yield for the trailing twelve months is around 9.35%, less than FIKCX's 11.34% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
FIKCX Fidelity Advisor Health Care Fund Class Z	11.34%	11.48%	0.00%	0.00%	0.00%	5.71%	5.86%	0.61%	4.65%
PDFDX Perkins Discovery Fund	9.35%	4.25%	0.00%	0.00%	1.78%	31.11%	1.71%	0.00%	0.58%

Frequently Asked Questions

Can I hold both PDFDX and FIKCX in my portfolio?

PDFDX and FIKCX have a correlation of 0.59, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PDFDX or FIKCX?

FIKCX has higher volatility (5.87%) compared to PDFDX (4.49%). In terms of maximum drawdown, PDFDX dropped -67.44% vs FIKCX's -29.19%.

Which has better risk-adjusted returns?

FIKCX currently has the higher Sharpe Ratio (1.40 vs 1.37), 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.