MGC vs RSP: Holdings Overlap
MGCVanguard Mega Cap Index Fund
Vanguard · 173 holdings · $10.3B · as of 2026-05-31
RSPInvesco S&P 500 Equal Weight ETF
Invesco · 504 holdings · $97.5B · as of 2026-04-30
Holdings snapshots are 31 days apart (MGC: 2026-05-31, RSP: 2026-04-30). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are MGC and RSP?
Vanguard Mega Cap Index Fund (MGC, by Vanguard) holds 173 positions; Invesco S&P 500 Equal Weight ETF (RSP, by Invesco) holds 504. They have 170 holdings in common, and by portfolio weight the two funds are 29.2% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 29.2%Sum of the smaller weight of each shared holding
- Shared Holdings
- 170MGC holds 173 · RSP holds 504
- Weight in Shared Holdings
- MGC 99%·RSP 34%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in MGC
3 of 173 positions (0.3% of the fund) are not held by RSP.
Sector Breakdown
| Sector | MGC | RSP |
|---|---|---|
| Information Technology | 42.4% | 15.9% |
| Industrials | 6.4% | 15.5% |
| Financials | 10.7% | 15.5% |
| Communication Services | 12.2% | 4.0% |
| Health Care | 8.6% | 10.9% |
| Other Sectors | 19.3% | 37.8% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts.
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| MGC | +3.6% | +13.6% | +24.3% | +22.7% | +14.0% | +16.2% | 0.89% |
| RSP | +2.5% | +15.8% | +22.4% | +14.8% | +9.2% | +12.0% | 1.46% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in MGC vs RSP →
Shared Holdings(170)
The top 10 shared positions account for 10% of the overlap, led by INTC, AMD and SNDK.
 INTCIntel Corporation COM | 0.86% | 0.38% | 0.38% |
|---|---|---|---|
 AMDAdvanced Micro Devices Inc. COM | 1.57% | 0.33% | 0.33% |
 SNDKSandisk Corporation COM | 0.46% | 0.32% | 0.32% |
 TXNTexas Instruments Inc. COM | 0.52% | 0.27% | 0.27% |
 QCOMQUALCOMM Inc. COM | 0.50% | 0.26% | 0.26% |
 UNHUnitedHealth Group Inc. COM | 0.64% | 0.25% | 0.25% |
 GEVGE Vernova Inc. COM | 0.49% | 0.25% | 0.25% |
 ADIAnalog Devices Inc. COM | 0.38% | 0.24% | 0.24% |
 CATCaterpillar Inc COM | 0.76% | 0.24% | 0.24% |
 ANETArista Networks Inc COM SHS | 0.32% | 0.24% | 0.24% |
 AMZNAmazon.com, Inc. COM | 4.88% | 0.24% | 0.24% |
 MUMicron Technology Inc. COM | 2.04% | 0.24% | 0.24% |
 DELLDell Technologies, Inc., Class C | 0.24% | 0.27% | 0.24% |
 AVGOBroadcom Inc COM | 3.95% | 0.23% | 0.23% |
 ETNEaton Corporation PLC COM USD0.01 | 0.29% | 0.23% | 0.23% |
 MSMorgan Stanley COM NEW | 0.46% | 0.23% | 0.23% |
 KLACKLA Corp. COM NEW | 0.47% | 0.23% | 0.23% |
 LRCXLam Research Corporation COM NEW | 0.74% | 0.23% | 0.23% |
 CCitigroup Inc. COM NEW | 0.39% | 0.23% | 0.23% |
 CSCOCisco Systems, Inc. COM | 0.80% | 0.22% | 0.22% |
 AMATApplied Materials Inc. COM | 0.67% | 0.22% | 0.22% |
 BLKBlackrock Inc. COM | 0.27% | 0.22% | 0.22% |
 GSGoldman Sachs Group, Inc. (The) | 0.54% | 0.22% | 0.22% |
 BACBank of America Corp. COM | 0.62% | 0.21% | 0.21% |
 CVSCVS Health Corp COM | 0.22% | 0.21% | 0.21% |
Frequently Asked Questions
How much do MGC and RSP overlap?
MGC and RSP overlap by 29.2% of portfolio weight. They share 170 holdings (MGC holds 173 positions and RSP holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both MGC and RSP?
The two portfolios are 29.2% identical by weight. Owning both is not redundant. Most of each portfolio is distinct, so the funds can serve different roles.
What are the biggest shared holdings of MGC and RSP?
The largest positions held by both funds are INTC, AMD, SNDK, TXN and QCOM. Together the top 10 shared positions account for 10% of the total overlap.
What does MGC own that RSP doesn't?
3 positions (0.3% of MGC) are unique to MGC, led by MRVL, BRK-A and SNOW. In the other direction, 334 positions (65.6% of RSP) are unique to RSP.