ETF comparison
SPTM vs SPYM
US Total Market vs US Large Cap.
State Street SPDR Portfolio S&P 1500 Composite Stock Market ETF · State Street SPDR Portfolio S&P 500 ETF
Holdings overlap
505 positions appear in both funds. Buying equal dollars of SPTM and SPYM would leave roughly 92.1% of each dollar exposed to the same underlying securities.
Unmatched is the part of a fund's weight the other fund doesn't match: names only it holds, plus any extra weight it puts in names both funds hold.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — see what we don't score for why.
Cost difference
SPYM is 1 bps cheaper than SPTM. On a $100,000 position that's about $10/yr more in fees for SPTM.
Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open the cost calculator pre-filled with SPTM vs SPYM.
Top shared holdings
505 shared in total| # | Holding | In SPTM | In SPYM | Overlap |
|---|---|---|---|---|
| 1 | NVIDIA Corp | 6.92% | 7.51% | 6.92% |
| 2 | Apple Inc | 6.07% | 6.59% | 6.07% |
| 3 | Microsoft Corp | 3.96% | 4.29% | 3.96% |
| 4 | Amazon.com Inc | 3.33% | 3.62% | 3.33% |
| 5 | Alphabet Inc | 2.99% | 3.25% | 2.99% |
| 6 | Broadcom Inc | 2.56% | 2.77% | 2.56% |
| 7 | Alphabet Inc | 2.38% | 2.59% | 2.38% |
| 8 | Micron Technology Inc | 1.86% | 2.02% | 1.86% |
| 9 | Meta Platforms Inc | 1.76% | 1.92% | 1.76% |
| 10 | Tesla Inc | 1.69% | 1.83% | 1.69% |
| 11 | Eli Lilly & Co | 1.35% | 1.47% | 1.35% |
| 12 | Advanced Micro Devices Inc | 1.35% | 1.47% | 1.35% |
Only in SPTM
1,003 total- Twilio Inc 0.05%
- Carpenter Technology Corp 0.05%
- Curtiss-Wright Corp 0.04%
- Illumina Inc 0.04%
- nVent Electric PLC 0.04%
- TechnipFMC PLC 0.04%
- Entegris Inc 0.04%
- ATI Inc 0.04%
- Sterling Infrastructure Inc 0.04%
- Woodward Inc 0.04%
Only in SPYM
1 total- CONTRA WALGREENS BOOTS 0.00%
Related comparisons
More comparisons with SPTM
- SPTM vs VTHR · Vanguard Russell 3000 Index Fund ETF Shares 92.1%
- SPTM vs IVV · iShares Core S&P 500 ETF 92.1%
- SPTM vs SCHK · Schwab 1000 ETF 92.0%
- SPTM vs DFUS · Dimensional U.S. Equity Market ETF 91.1%
- SPTM vs BBUS · JPMorgan BetaBuilders U.S. Equity ETF 87.0%
- SPTM vs DFAU · Dimensional US Core Equity Market ETF 86.1%
More comparisons with SPYM
- SPYM vs SCHX · Schwab U.S. Large-Cap ETF 91.9%
- SPYM vs IWB · iShares Russell 1000 ETF 91.7%
- SPYM vs VONE · Vanguard Russell 1000 Index Fund ETF Shares 90.6%
- SPYM vs SCHK · Schwab 1000 ETF 90.5%
- SPYM vs SPY · State Street SPDR S&P 500 ETF Trust 89.7%
- SPYM vs ITOT · iShares Core S&P Total U.S. Stock Market ETF 88.1%
Percentages are holdings overlap with the named fund.
Open SPTM or SPYM at a brokerage
Both funds trade commission-free at major US brokerages.
Affiliate links — opening an account through these earns PlainIndex a one-time referral. Scoring is computed before any affiliate consideration; see our methodology and funding disclosure.
Holdings overlap is the sum of min(weight_a, weight_b) over positions
matched on ISIN (CUSIP fallback). Methodology: see
/methodology/.
Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.