IYM vs RING overlap - what they share and where they differ
IYM and RING share 14.3% of their weight across 3 common positions, read from what each fund reported to the SEC.
Each week Ploutos reads the reported positions of the largest US equity ETFs and measures, pair by pair, the weight they share: for every stock both funds hold, the smaller of the two weights counts. Two funds tracking the same index land near 100%. A sector fund inside a broad index fund lands at roughly that sector's weight.
IYM and RING
14.3%
3 shared positions
IYM
iShares U.S. Basic Materials ETF
Reported positions cover 100% of the fund, 39 positions · Jul 31, 2026
Top 10: 67.5%·Holdings of IYM
RING
iShares MSCI Global Gold Miners ETF
Reported positions cover 101% of the fund, 39 positions · Aug 31, 2026
Top 10: 69.6%·Holdings of RING
Reported positions cover IYM 100%, RING 101% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
RING vs IYM side by side
IYMiShares U.S. Basic Materials ETF
39
stock positions reported to the SEC
85.6% of its weight is in 36 names RING does not hold
RINGiShares MSCI Global Gold Miners ETF
39
stock positions reported to the SEC
74.8% of its weight is in 36 names IYM does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Consumer Defensive: IYM has 7.8 points more of it.
The figures side by side
| IYM | RING | |
|---|---|---|
| Filing date | Jul 31, 2026 | Aug 31, 2026 |
| Stock positions reported | 39 | 39 |
| Weight of the ten largest | 67.5% | 69.6% |
| Largest position | LIN 20.4% | NEM 17.2% |
| Held alone | 36 positions, 85.6% | 36 positions, 74.8% |
| Covered by stock positions | 100% | 101% |
Holdings they share
| Stock | In IYM | In RING | Counted |
|---|---|---|---|
| NEMNEWMONT CORPORATION | 9.28% | 17.23% | 9.28% |
| AUANGLOGOLD ASHANTI PLC | 3.40% | 5.01% | 3.40% |
| CDECOEUR MINING, INC. | 1.60% | 3.45% | 1.60% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in IYM
Only in RING
Questions people ask
Is IYM the same as RING?
14.3% of their weight sits in the same 3 holdings. IYM also reports LIN, FCX, ECL, which the other does not. RING also reports AEM, B, WPM, which the other does not.
How is the overlap between IYM and RING measured?
For every stock both funds report, the smaller of the two weights counts, and the sum is the overlap. The reported positions cover 100% of IYM and 101% of RING, so the number cannot exceed the smaller coverage.
Which holds more, RING or IYM?
IYM reports 39 stock positions and RING reports 39. 85.6% of IYM's weight sits in names RING does not hold, and 74.8% of RING's weight in names IYM does not hold. The ten largest positions are 67.5% of IYM and 69.6% of RING.
How do IYM and RING differ by sector?
The widest gap is Consumer Defensive: IYM has 7.8 points more of it. Sectors come from each holding's SIC code in its SEC record, summed by the weight the fund reports.
Where do the numbers come from?
From each fund's own N-PORT filing to the SEC, which lists every position and its weight. The comparison uses every equity position the fund reports; cash, futures and bonds are not counted, which is why a coverage figure sits next to every result. Holdings change between filings.
Add a third fund in the tool·All fund pairs
Descriptive data from public SEC filings. Nothing on this page is a recommendation to buy, sell or hold any fund or stock, and holdings change between filings.