BFSAX vs. BKTSX

Last updated Jun 5, 2026

BFSAX (BFS Equity Fund) and BKTSX (iShares Total U.S. Stock Market Index Fund Class K) are both Large Cap Blend Equities funds. Their correlation of 0.82 suggests significant overlap in exposure. BFSAX charges 1.25%/yr vs 0.02%/yr for BKTSX.

Performance

BFSAX vs. BKTSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BFS Equity Fund (BFSAX) and iShares Total U.S. Stock Market Index Fund Class K (BKTSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

BFSAX

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

BKTSX

• 1D: -0.75%
• 1M: 4.00%
• YTD: 10.89%
• 6M: 10.63%
• 1Y: 27.71%
• 3Y*: 21.99%
• 5Y*: 12.76%
• 10Y*: 15.05%

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

BFSAX vs. BKTSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BFSAX BFS Equity Fund	0.00%	0.00%	0.00%	8.75%	-18.53%	24.95%	10.46%	32.88%	-2.96%	20.97%
BKTSX iShares Total U.S. Stock Market Index Fund Class K	10.89%	17.15%	23.83%	26.02%	-19.05%	25.56%	20.82%	31.12%	-5.37%	21.02%

Correlation

The correlation between BFSAX and BKTSX is 0.82, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (3Y) Calculated over the trailing 3-year period	0.33
Correlation (5Y) Calculated over the trailing 5-year period	0.69
Correlation (10Y) Calculated over the trailing 10-year period	0.81
Correlation (All Time) Calculated using the full available price history since Jan 5, 2016	0.82

The correlation between BFSAX and BKTSX shifts across timeframes, from 0.33 (3 years) to 0.82 (all time), reflecting how their relationship changes across market environments.

Return for Risk

BFSAX vs. BKTSX — Risk / Return Rank

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

BKTSX

BKTSX Risk / Return Rank: 65
BKTSX Sharpe Ratio Rank: 62
BKTSX Sortino Ratio Rank: 57
BKTSX Omega Ratio Rank: 58
BKTSX Calmar Ratio Rank: 69
BKTSX Martin Ratio Rank: 79

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.

BFSAX vs. BKTSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BFS Equity Fund (BFSAX) and iShares Total U.S. Stock Market Index Fund Class K (BKTSX). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	BFSAX	BKTSX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	2.29	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.74	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.82	—
Sharpe Ratio (All Time) Calculated using the full available price history	—	0.82	—

Drawdowns

Drawdown Indicators

	BFSAX	BKTSX	Difference
Max Drawdown Largest peak-to-trough decline	—	-34.97%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-8.87%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-19.29%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-24.98%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-34.97%	—
Current Drawdown Current decline from peak	—	-0.75%	—
Average Drawdown Average peak-to-trough decline	—	-4.53%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	1.93%	—

Volatility

Volatility by Period

	BFSAX	BKTSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	3.05%	—
Volatility (6M) Calculated over the trailing 6-month period	—	9.14%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	12.18%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	17.36%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	18.41%	—

BFSAX vs. BKTSX - Expense Ratio Comparison

BFSAX has a 1.25% expense ratio, which is higher than BKTSX's 0.02% expense ratio.

Dividends

BFSAX vs. BKTSX - Dividend Comparison

BFSAX has not paid dividends to shareholders, while BKTSX's dividend yield for the trailing twelve months is around 1.05%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BFSAX BFS Equity Fund	0.00%	0.00%	0.00%	0.00%	1.14%	9.63%	1.50%	1.69%	3.63%	0.32%	0.45%	0.30%
BKTSX iShares Total U.S. Stock Market Index Fund Class K	1.05%	1.14%	1.27%	1.46%	1.64%	1.58%	1.51%	2.15%	2.49%	2.17%	1.54%	0.00%

Frequently Asked Questions

Can I hold both BFSAX and BKTSX in my portfolio?

BFSAX and BKTSX have a correlation of 0.82, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.