JESTX vs. BOGSX

Last updated Jun 4, 2026

JESTX (John Hancock Variable Insurance Trust Science & Technology Trust) and BOGSX (Black Oak Emerging Technology Fund) are both Technology Equities funds. Over the past 5 years, JESTX returned 21.16%/yr vs 13.99%/yr for BOGSX. Their correlation of 0.86 suggests significant overlap in exposure. JESTX charges 1.04%/yr vs 1.03%/yr for BOGSX.

Performance

JESTX vs. BOGSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in John Hancock Variable Insurance Trust Science & Technology Trust (JESTX) and Black Oak Emerging Technology Fund (BOGSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both investments are quite close, with JESTX having a 41.17% return and BOGSX slightly higher at 43.19%.

JESTX

• 1D: 2.39%
• 1M: 21.53%
• YTD: 41.17%
• 6M: 38.10%
• 1Y: 83.41%
• 3Y*: 39.74%
• 5Y*: 21.16%
• 10Y*: —

BOGSX

• 1D: 2.19%
• 1M: 15.43%
• YTD: 43.19%
• 6M: 42.65%
• 1Y: 62.39%
• 3Y*: 25.08%
• 5Y*: 13.99%
• 10Y*: 17.86%

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

JESTX vs. BOGSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
JESTX John Hancock Variable Insurance Trust Science & Technology Trust	41.17%	24.07%	37.90%	54.68%	-33.29%	8.37%	57.16%	37.93%	-0.61%	24.51%
BOGSX Black Oak Emerging Technology Fund	43.19%	19.06%	9.25%	17.79%	-27.30%	26.89%	45.16%	38.20%	-4.94%	13.82%

Correlation

The correlation between JESTX and BOGSX is 0.76, 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	0.76
Correlation (3Y) Calculated over the trailing 3-year period	0.77
Correlation (5Y) Calculated over the trailing 5-year period	0.84
Correlation (All Time) Calculated using the full available price history since Feb 2, 2017	0.86

The correlation between JESTX and BOGSX shifts across timeframes, from 0.76 (1 year) to 0.86 (all time), reflecting how their relationship changes across market environments.

Return for Risk

JESTX vs. BOGSX — Risk / Return Rank

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

JESTX

JESTX Risk / Return Rank: 92
JESTX Sharpe Ratio Rank: 98
JESTX Sortino Ratio Rank: 90
JESTX Omega Ratio Rank: 86
JESTX Calmar Ratio Rank: 94
JESTX Martin Ratio Rank: 92

BOGSX

BOGSX Risk / Return Rank: 86
BOGSX Sharpe Ratio Rank: 91
BOGSX Sortino Ratio Rank: 79
BOGSX Omega Ratio Rank: 74
BOGSX Calmar Ratio Rank: 95
BOGSX Martin Ratio Rank: 93

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.

JESTX vs. BOGSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for John Hancock Variable Insurance Trust Science & Technology Trust (JESTX) and Black Oak Emerging Technology Fund (BOGSX). 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.

	JESTX	BOGSX	Difference
Sharpe ratio: Return per unit of total volatility	3.95	3.03	+0.92
Sortino ratio: Return per unit of downside risk	4.37	3.76	+0.61
Omega ratio: Gain probability vs. loss probability	1.59	1.49	+0.10
Calmar ratio: Return relative to maximum drawdown	5.45	5.90	-0.45
Martin ratio: Return relative to average drawdown	19.62	20.24	-0.63
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

JESTX vs. BOGSX - Sharpe Ratio Comparison

The current JESTX Sharpe Ratio is 3.95, which is higher than the BOGSX Sharpe Ratio of 3.03. The chart below compares the historical Sharpe Ratios of JESTX and BOGSX, 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

	JESTX	BOGSX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.95	3.03	+0.92
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.76	0.56	+0.20
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.73	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.91	0.11	+0.80

Drawdowns

JESTX vs. BOGSX - Drawdown Comparison

The maximum JESTX drawdown since its inception was -46.95%, smaller than the maximum BOGSX drawdown of -92.80%. Use the drawdown chart below to compare losses from any high point for JESTX and BOGSX.

Drawdown Indicators

	JESTX	BOGSX	Difference
Max Drawdown Largest peak-to-trough decline	-46.95%	-92.80%	+45.85%
Max Drawdown (1Y) Largest decline over 1 year	-18.63%	-11.04%	-7.59%
Max Drawdown (3Y) Largest decline over 3 years	-31.33%	-24.78%	-6.55%
Max Drawdown (5Y) Largest decline over 5 years	-46.95%	-33.93%	-13.02%
Max Drawdown (10Y) Largest decline over 10 years	—	-33.93%	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-9.18%	-58.96%	+49.78%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.88%	3.21%	+1.67%

Volatility

JESTX vs. BOGSX - Volatility Comparison

John Hancock Variable Insurance Trust Science & Technology Trust (JESTX) has a higher volatility of 9.69% compared to Black Oak Emerging Technology Fund (BOGSX) at 6.71%. This indicates that JESTX's price experiences larger fluctuations and is considered to be riskier than BOGSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	JESTX	BOGSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.69%	6.71%	+2.98%
Volatility (6M) Calculated over the trailing 6-month period	20.66%	16.73%	+3.93%
Volatility (1Y) Calculated over the trailing 1-year period	25.73%	21.46%	+4.27%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.72%	25.22%	+3.50%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.57%	24.61%	+1.96%

JESTX vs. BOGSX - Expense Ratio Comparison

JESTX has a 1.04% expense ratio, which is higher than BOGSX's 1.03% expense ratio.

Dividends

JESTX vs. BOGSX - Dividend Comparison

JESTX's dividend yield for the trailing twelve months is around 15.56%, more than BOGSX's 4.02% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BOGSX Black Oak Emerging Technology Fund	4.02%	5.76%	7.96%	3.79%	1.87%	11.31%	6.30%	5.47%	11.71%	7.71%	4.00%	3.09%
JESTX John Hancock Variable Insurance Trust Science & Technology Trust	15.56%	21.96%	0.00%	0.00%	100.46%	24.96%	9.28%	19.35%	18.35%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both JESTX and BOGSX in my portfolio?

JESTX and BOGSX have a correlation of 0.76, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, JESTX or BOGSX?

JESTX has higher volatility (9.69%) compared to BOGSX (6.71%). In terms of maximum drawdown, JESTX dropped -46.95% vs BOGSX's -92.80%.

Which has better risk-adjusted returns?

JESTX currently has the higher Sharpe Ratio (3.95 vs 3.03), 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.