Do DRAM and QTUM hold the same stocks?

By their latest filings, 1% of their books are the same securities at the same weight. Overlap is the sum of the smaller weight of every security they share.

Which is more different from the S&P 500, DRAM or QTUM?

DRAM has 16% of its weight in S&P 500 names and QTUM has 38%, so DRAM differs more from the index.

Which is cheaper, DRAM or QTUM?

DRAM charges 0.65% a year and QTUM charges 0.40%, so QTUM is cheaper. Fees come from each fund's prospectus.

Data as of Oct 28, 2026.

Thematic ETFs

DRAM vs QTUM: Holdings Overlap & Returns

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DRAM and QTUM hold 1% of their weight in the same names.

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Net assets: $20.6bn on Oct 28, 2026 for Roundhill Memory ETF, and $5.4bn on Oct 27, 2026 for Defiance Quantum ETF.

DRAM on its own →QTUM on its own →

At a glance

15.7%

DRAM in the S&P 500

37.5%

QTUM in the S&P 500

+95.0%

DRAM total return, since launch, Apr 2, 2026

+28.9%

QTUM total return, 1 year

DRAM · 6 months to Oct 28, 2026 84% of its weight is outside the S&P 500

16% of DRAM's weight is in S&P 500 companies and 84% is outside the index. Holdings as of Jun 30, 2026.

QTUM · 1 year to Oct 28, 2026 63% of its weight is outside the S&P 500

38% of QTUM's weight is in S&P 500 companies and 63% is outside the index. Holdings as of Oct 28, 2026.

Pair scorecard

QTUM costs 0.25 points a year less; DRAM is 3.6 times larger.

DRAM vs QTUM: Holdings Overlap & Returns
Measure	DRAM	QTUM
Return
Measure	DRAM	QTUM
Total return, 1 year	not published	+28.9%
Drawdown
Measure	DRAM	QTUM
Below its all-time high	33.0%, high on Jun 22, 2026	14.3%, high on Jun 2, 2026
Benchmark
Measure	DRAM	QTUM
What it tracks	Memory and storage	Quantum computing
Cost and size
Measure	DRAM	QTUM
Expense ratio	0.65%	0.40%
Net assets, as of Oct 27, 2026	$19.2bn	$5.4bn
Holdings
Measure	DRAM	QTUM
Holdings in common	1%
Top ten holdings, share of the fund	56%	18%

Holdings in common uses holdings dated Jun 30, 2026 and Oct 28, 2026. Method

Risk and return

Apr 10, 2026 to Oct 23, 2026 · 28 weekly returns

DRAM QTUM

Return

Total return edge DRAM +45.1% +17.3%

Price return edge DRAM +45.1% +16.7%

Risk

Max drawdown edge QTUM −39.4% −18.5%

Reading

DRAM returned more: +45.1% to +17.3%. QTUM fell less at its worst: −18.5% to −39.4%.

Full scorecard

3 measures, with how each is measured Open ↓

Risk and return: DRAM vs QTUM: Holdings Overlap & Returns
Measure	DRAM	QTUM	Edge	How it is measured
Return
Total return	+45.1%	+17.3%	DRAM	Price change plus distributions, reinvested.
Price return	+45.1%	+16.7%	DRAM	Price change alone, distributions left out.
Risk
Max drawdown	−39.4%	−18.5%	QTUM	Deepest fall from a high to the low after it.

Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 28 weekly returns. Cash rate: the 13-week Treasury bill.

What they share

By the books each fund has filed, DRAM and QTUM hold 1% of their money in the same securities at the same weight. Holdings dated Jun 30, 2026 and Oct 28, 2026.

50%

0 half 100%

half

1% in common

Positions both hold · largest shared weight first DRAM QTUM

Micron Technology Inc 2.03% 1.34%

Only in one fund ↓

Only in DRAM

SK hynix Inc 15.89%

Samsung Electronics Co Ltd 14.37%

Sandisk Corp 5.21%

Kioxia Holdings Corp 4.36%

Western Digital Corp 4.30%

Seagate Technology Holdings PL 4.19%

GigaDevice Semiconductor Inc 3.07%

Nanya Technology Corp 1.81%

Only in QTUM

Global Unichip Corp 2.43%

Elastic Nv 2.14%

Horizon Quantum Holdings Ltd 1.86%

Palantir Technologies Inc 1.84%

Nutanix Inc 1.78%

Cloudflare Inc 1.77%

Snowflake Inc 1.73%

Arqit Quantum Inc 1.72%

Check overlap with more funds →

Window by window

Window by window: DRAM vs QTUM: Holdings Overlap & Returns
	Total return
Window	DRAM	QTUM
3 months	+20.7%	+9.1%
6 months	+41.6%	+11.2%
1 year	–	+28.9%
3 years	–	+229.7%
Since launchNot the same days: DRAM Apr 2026 · QTUM Sep 2018	+95.0%	+522.8%

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Side by side

DRAM Roundhill Memory ETF · Holds 12 stocks in memory and storage, 16% of its weight in S&P 500 companies QTUM Defiance Quantum ETF · Holds 85 stocks in quantum computing, 38% of its weight in S&P 500 companies

Issuer Roundhill Defiance

Theme Memory and storage Quantum computing

In the S&P 500 15.7% 37.5%

Active share vs the S&P 500 96.8% 82.2%

In the Nasdaq-100 15.7% 28.0%

Holdings 12 85

Top ten, share of the fund 56.4% 18.5%

Expense ratio 0.65% 0.40%

Fee for the differing part 0.67% 0.49%

Total return, 1 year +95.0% (since launch, Apr 2, 2026) +28.9%

vs its benchmark not measured not measured

Below its high −33.0% −14.3%

Net assets, DRAM as of Oct 28, 2026 and QTUM as of Oct 27, 2026 $20.6bn $5.4bn

As of Oct 28, 2026. Source: ETFIQ.

1% of the two portfolios are the same securities at the same weight.

Client brief

No client brief for this pair: ETFIQ prints no one-year total return for DRAM; the two funds' holdings are dated 120 days apart.

Alert

About each fund

DRAM

By weight, 16% of DRAM's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 97%. The top ten holdings are 56% of the fund across 12 positions, as filed for Jun 30, 2026. Since it first traded on Apr 2, 2026 the fund returned +95.0% with distributions reinvested. It sits 33.0% below its all-time high of Jun 22, 2026.

QTUM

By weight, 38% of QTUM's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 82%. The top ten holdings are 18% of the fund across 85 positions, as published by its issuer for Oct 28, 2026. Over the year to Oct 28, 2026 the fund returned +28.9% with distributions reinvested. It sits 14.3% below its all-time high of Jun 2, 2026.

Questions people ask

Do DRAM and QTUM hold the same stocks?: By their latest filings, 1% of their books are the same securities at the same weight. Overlap is the sum of the smaller weight of every security they share.
Which is more different from the S&P 500, DRAM or QTUM?: DRAM has 16% of its weight in S&P 500 names and QTUM has 38%, so DRAM differs more from the index.
Which is cheaper, DRAM or QTUM?: DRAM charges 0.65% a year and QTUM charges 0.40%, so QTUM is cheaper. Fees come from each fund's prospectus.

Other comparisons

DRAM vs SIL DRAM vs KWEB DRAM vs XT DRAM vs ARTY QTUM vs GDX QTUM vs GRID QTUM vs SMH QTUM vs URA

Where to next

All thematic ETFs ranked by the S&P 500 Difference Score →How the scores are computed →DRAM on its own →QTUM on its own →DRAM holdings →QTUM dividend history →QTUM holdings →Method →Standards and sources →

Sources and dates

DRAM filings on SEC EDGAR ↗

DRAM prospectus with the expense ratio (SEC) ↗

Roundhill page for DRAM ↗

QTUM filings on SEC EDGAR ↗

QTUM prospectus with the expense ratio (SEC) ↗

Defiance page for QTUM ↗

Links are sources, not endorsements. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

Every number is an ETFIQ calculation with distributions reinvested.

Cite this pageCitation, APA and Markdown

ETFIQ, DRAM against QTUM, data as of Oct 28, 2026. https://etfiq.com/compare/themes/dram-vs-qtum

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Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.