PHSTX vs. AHSAX

Last updated Jun 4, 2026

PHSTX (Putnam Global Health Care Fund) and AHSAX (Alger Health Sciences Fund) are both Health & Biotech Equities funds. Over the past 10 years, PHSTX returned 8.58%/yr vs 8.16%/yr for AHSAX. Their correlation of 0.84 suggests significant overlap in exposure. Both charge a 1.05% expense ratio.

Performance

PHSTX vs. AHSAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Putnam Global Health Care Fund (PHSTX) and Alger Health Sciences Fund (AHSAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PHSTX achieves a -4.12% return, which is significantly lower than AHSAX's -2.06% return. Both investments have delivered pretty close results over the past 10 years, with PHSTX having a 8.58% annualized return and AHSAX not far behind at 8.16%.

PHSTX

• 1D: -1.14%
• 1M: -0.08%
• YTD: -4.12%
• 6M: -4.03%
• 1Y: 13.40%
• 3Y*: 6.64%
• 5Y*: 5.91%
• 10Y*: 8.58%

AHSAX

• 1D: -2.70%
• 1M: -2.28%
• YTD: -2.06%
• 6M: -1.19%
• 1Y: 21.16%
• 3Y*: 2.76%
• 5Y*: -1.74%
• 10Y*: 8.16%

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

PHSTX vs. AHSAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PHSTX Putnam Global Health Care Fund	-4.12%	15.20%	1.35%	9.11%	-4.88%	19.60%	15.94%	30.26%	-0.76%	15.30%
AHSAX Alger Health Sciences Fund	-2.06%	10.14%	1.17%	-4.26%	-17.04%	3.26%	30.99%	22.02%	5.71%	33.06%

Correlation

The correlation between PHSTX and AHSAX is 0.69, 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	0.69
Correlation (3Y) Calculated over the trailing 3-year period	0.75
Correlation (5Y) Calculated over the trailing 5-year period	0.76
Correlation (10Y) Calculated over the trailing 10-year period	0.79
Correlation (All Time) Calculated using the full available price history since Jan 3, 2003	0.84

The correlation between PHSTX and AHSAX shifts across timeframes, from 0.69 (1 year) to 0.84 (all time), reflecting how their relationship changes across market environments.

Return for Risk

PHSTX vs. AHSAX — Risk / Return Rank

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

PHSTX

PHSTX Risk / Return Rank: 13
PHSTX Sharpe Ratio Rank: 12
PHSTX Sortino Ratio Rank: 13
PHSTX Omega Ratio Rank: 12
PHSTX Calmar Ratio Rank: 15
PHSTX Martin Ratio Rank: 12

AHSAX

AHSAX Risk / Return Rank: 26
AHSAX Sharpe Ratio Rank: 24
AHSAX Sortino Ratio Rank: 24
AHSAX Omega Ratio Rank: 21
AHSAX Calmar Ratio Rank: 34
AHSAX Martin Ratio Rank: 29

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.

PHSTX vs. AHSAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Putnam Global Health Care Fund (PHSTX) and Alger Health Sciences Fund (AHSAX). 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.

	PHSTX	AHSAX	Difference
Sharpe ratio: Return per unit of total volatility	0.94	1.40	-0.45
Sortino ratio: Return per unit of downside risk	1.49	2.04	-0.55
Omega ratio: Gain probability vs. loss probability	1.17	1.24	-0.07
Calmar ratio: Return relative to maximum drawdown	1.37	2.20	-0.82
Martin ratio: Return relative to average drawdown	3.44	6.85	-3.40
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PHSTX vs. AHSAX - Sharpe Ratio Comparison

The current PHSTX Sharpe Ratio is 0.94, which is lower than the AHSAX Sharpe Ratio of 1.40. The chart below compares the historical Sharpe Ratios of PHSTX and AHSAX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	PHSTX	AHSAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.94	1.40	-0.45
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.41	-0.07	+0.48
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.55	0.35	+0.20
Sharpe Ratio (All Time) Calculated using the full available price history	0.61	0.32	+0.29

Drawdowns

PHSTX vs. AHSAX - Drawdown Comparison

The maximum PHSTX drawdown since its inception was -45.51%, roughly equal to the maximum AHSAX drawdown of -46.23%. Use the drawdown chart below to compare losses from any high point for PHSTX and AHSAX.

Drawdown Indicators

	PHSTX	AHSAX	Difference
Max Drawdown Largest peak-to-trough decline	-45.51%	-46.23%	+0.72%
Max Drawdown (1Y) Largest decline over 1 year	-9.71%	-9.67%	-0.04%
Max Drawdown (3Y) Largest decline over 3 years	-20.71%	-23.11%	+2.40%
Max Drawdown (5Y) Largest decline over 5 years	-20.71%	-45.04%	+24.33%
Max Drawdown (10Y) Largest decline over 10 years	-25.51%	-45.04%	+19.53%
Current Drawdown Current decline from peak	-8.08%	-28.77%	+20.69%
Average Drawdown Average peak-to-trough decline	-9.92%	-14.71%	+4.79%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.86%	3.10%	+0.76%

Volatility

PHSTX vs. AHSAX - Volatility Comparison

The current volatility for Putnam Global Health Care Fund (PHSTX) is 4.04%, while Alger Health Sciences Fund (AHSAX) has a volatility of 5.42%. This indicates that PHSTX experiences smaller price fluctuations and is considered to be less risky than AHSAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PHSTX	AHSAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.04%	5.42%	-1.38%
Volatility (6M) Calculated over the trailing 6-month period	10.14%	11.88%	-1.74%
Volatility (1Y) Calculated over the trailing 1-year period	14.14%	15.23%	-1.09%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.41%	24.15%	-9.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.78%	23.33%	-7.55%

PHSTX vs. AHSAX - Expense Ratio Comparison

Both PHSTX and AHSAX have an expense ratio of 1.05%.

Dividends

PHSTX vs. AHSAX - Dividend Comparison

PHSTX's dividend yield for the trailing twelve months is around 1.86%, while AHSAX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AHSAX Alger Health Sciences Fund	0.00%	0.00%	0.00%	0.00%	0.00%	27.18%	11.68%	6.98%	7.82%	0.00%	0.00%	0.00%
PHSTX Putnam Global Health Care Fund	1.86%	1.79%	4.92%	5.62%	7.82%	11.98%	9.58%	5.72%	6.82%	17.31%	10.65%	13.06%

Frequently Asked Questions

Can I hold both PHSTX and AHSAX in my portfolio?

PHSTX and AHSAX have a correlation of 0.69, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PHSTX or AHSAX?

AHSAX has higher volatility (5.42%) compared to PHSTX (4.04%). In terms of maximum drawdown, PHSTX dropped -45.51% vs AHSAX's -46.23%.

Which has better risk-adjusted returns?

AHSAX currently has the higher Sharpe Ratio (1.40 vs 0.94), 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.