ETF comparison
SPMD vs SPYM
US Mid Cap vs US Large Cap.
State Street SPDR Portfolio S&P 400 Mid Cap ETF · State Street SPDR Portfolio S&P 500 ETF
Holdings overlap
0 positions appear in both funds. Buying equal dollars of SPMD and SPYM would leave roughly 0.0% 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 SPMD. On a $100,000 position that's about $10/yr more in fees for SPMD.
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 SPMD vs SPYM.
Top shared holdings
0 shared in totalNo shared holdings between these funds.
Only in SPMD
400 total- Twilio Inc 0.86%
- Carpenter Technology Corp 0.84%
- MKS Inc 0.83%
- Curtiss-Wright Corp 0.77%
- Entegris Inc 0.76%
- nVent Electric PLC 0.76%
- ATI Inc 0.74%
- Illumina Inc 0.73%
- TechnipFMC PLC 0.73%
- Sterling Infrastructure Inc 0.71%
Only in SPYM
506 total- NVIDIA Corp 7.51%
- Apple Inc 6.59%
- Microsoft Corp 4.29%
- Amazon.com Inc 3.62%
- Alphabet Inc 3.25%
- Broadcom Inc 2.77%
- Alphabet Inc 2.59%
- Micron Technology Inc 2.02%
- Meta Platforms Inc 1.92%
- Tesla Inc 1.83%
Related comparisons
More comparisons with SPMD
- SPMD vs VOO · Vanguard S&P 500 ETF 0.0%
- SPMD vs VTV · Vanguard Morningstar Value ETF 0.0%
- SPMD vs IJH · iShares Core S&P Mid-Cap ETF 99.8%
- SPMD vs IVOO · Vanguard S&P Mid-Cap 400 Index Fund ETF Shares 93.8%
- SPMD vs MDY · State Street SPDR S&P MIDCAP 400 ETF Trust 84.4%
- SPMD vs IJK · iShares S&P Mid-Cap 400 Growth ETF 65.5%
More comparisons with SPYM
- SPYM vs SPSM · State Street SPDR Portfolio S&P 600 Small Cap ETF 0.0%
- SPYM vs VIGI · Vanguard International Dividend Appreciation Index Fund ETF Shares 0.0%
- SPYM vs VIOG · Vanguard S&P Small-Cap 600 Growth Index Fund ETF Shares 0.0%
- SPYM vs VIOO · Vanguard S&P Small-Cap 600 Index Fund ETF Shares 0.0%
- SPYM vs VIOV · Vanguard S&P Small-Cap 600 Value Index Fund ETF Shares 0.0%
- SPYM vs VYMI · Vanguard International High Dividend Yield Index Fund ETF Shares 0.0%
Percentages are holdings overlap with the named fund.
Open SPMD 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.