BUYB vs. SPTM

Last updated Jun 30, 2026

BUYB (ProShares S&P 500 Buyback Aristocrats ETF) and SPTM (SPDR Portfolio S&P 1500 Composite Stock Market ETF) are both Large Cap Blend Equities funds - BUYB tracks the S&P 500 Buyback Index while SPTM tracks the S&P Composite 1500 Index. Both are passively managed. A 0.51 correlation means they provide meaningful diversification when combined. BUYB charges 0.39%/yr vs 0.03%/yr for SPTM.

Performance

BUYB vs. SPTM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares S&P 500 Buyback Aristocrats ETF (BUYB) and SPDR Portfolio S&P 1500 Composite Stock Market ETF (SPTM). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

BUYB

• 1D: 0.31%
• 1M: 2.91%
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

SPTM

• 1D: 1.33%
• 1M: -1.34%
• YTD: 9.90%
• 6M: 8.89%
• 1Y: 22.37%
• 3Y*: 19.87%
• 5Y*: 12.81%
• 10Y*: 15.10%

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

BUYB vs. SPTM - Yearly Performance Comparison

	2026 (YTD)
BUYB ProShares S&P 500 Buyback Aristocrats ETF	4.16%
SPTM SPDR Portfolio S&P 1500 Composite Stock Market ETF	1.45%

Correlation

The correlation between BUYB and SPTM is 0.51, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (All Time) Calculated using the full available price history since May 7, 2026	0.51

Return for Risk

BUYB vs. SPTM — Risk / Return Rank

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

BUYB

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

SPTM

SPTM Risk / Return Rank: 65
SPTM Sharpe Ratio Rank: 64
SPTM Sortino Ratio Rank: 62
SPTM Omega Ratio Rank: 63
SPTM Calmar Ratio Rank: 61
SPTM Martin Ratio Rank: 73

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.

BUYB vs. SPTM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProShares S&P 500 Buyback Aristocrats ETF (BUYB) and SPDR Portfolio S&P 1500 Composite Stock Market ETF (SPTM). 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.

	BUYB	SPTM	Difference
Sharpe ratio: Return per unit of total volatility	—	1.80	—
Sortino ratio: Return per unit of downside risk	—	2.48	—
Omega ratio: Gain probability vs. loss probability	—	1.33	—
Calmar ratio: Return relative to maximum drawdown	—	2.59	—
Martin ratio: Return relative to average drawdown	—	11.49	—

Drawdowns

BUYB vs. SPTM - Drawdown Comparison

The maximum BUYB drawdown since its inception was -2.31%, smaller than the maximum SPTM drawdown of -54.80%. Use the drawdown chart below to compare losses from any high point for BUYB and SPTM.

Drawdown Indicators

	BUYB	SPTM	Difference
Max Drawdown Largest peak-to-trough decline	-2.31%	-54.80%	+52.49%
Max Drawdown (1Y) Largest decline over 1 year	—	-8.68%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-18.87%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-24.14%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-34.66%	—
Current Drawdown Current decline from peak	0.00%	-1.74%	+1.74%
Average Drawdown Average peak-to-trough decline	-0.72%	-9.03%	+8.31%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	1.95%	—

Volatility

Volatility by Period

	BUYB	SPTM	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	4.89%	—
Volatility (6M) Calculated over the trailing 6-month period	—	9.85%	—
Volatility (1Y) Calculated over the trailing 1-year period	11.15%	12.51%	-1.36%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	11.15%	16.97%	-5.82%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	11.15%	18.02%	-6.87%

BUYB vs. SPTM - Expense Ratio Comparison

BUYB has a 0.39% expense ratio, which is higher than SPTM's 0.03% expense ratio.

Dividends

BUYB vs. SPTM - Dividend Comparison

BUYB's dividend yield for the trailing twelve months is around 0.12%, less than SPTM's 1.07% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BUYB ProShares S&P 500 Buyback Aristocrats ETF	0.12%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
SPTM SPDR Portfolio S&P 1500 Composite Stock Market ETF	1.07%	1.13%	1.28%	1.44%	1.69%	1.25%	1.56%	1.72%	1.90%	1.66%	1.91%	1.92%

Frequently Asked Questions

Can I hold both BUYB and SPTM in my portfolio?

BUYB and SPTM have a correlation of 0.51, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, BUYB or SPTM?

On fees, SPTM is cheaper at 0.03% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, BUYB or SPTM?

SPTM is cheaper with a 0.03% expense ratio, compared with 0.39% for BUYB.

Which ETF pays a higher dividend yield, BUYB or SPTM?

SPTM has the higher dividend yield at 1.07%, compared with 0.12% for BUYB.

What is the main difference between BUYB and SPTM?

BUYB tracks S&P 500 Buyback Index, while SPTM tracks S&P Composite 1500 Index. They also come from different issuers: ProShares and State Street. Their fees differ too: 0.39% for BUYB and 0.03% for SPTM.