Do DRAM and XBI hold the same stocks?

By their latest filings, 0% of their books are the same securities at the same weight, which is mostly different names. Overlap is the sum of the smaller weight of every security they share.

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

DRAM has 16% of its weight in S&P 500 names and XBI has 13%, so XBI differs more from the index.

Which is cheaper, DRAM or XBI?

DRAM charges 0.65% a year and XBI charges 0.35%, so XBI is cheaper. Fees come from each fund's prospectus.

Share on X Download as PDF Open live Compare their flows Ask about these two funds

DRAM vs XBI: which is really different?

DRAM and XBI hold 0% of their weight in the same names. Roundhill Memory ETF and State Street(R) SPDR(R) S&P(R) Biotech ETF.

XBI costs 0.30 points a year less; DRAM is 2.4 times larger.

	DRAM	XBI
Expense ratio	0.65%	0.35%
Net assets, as of Oct 8, 2026	$24.2bn	$9.9bn
Total return, 1 year	not published	+45.0%
What it tracks	Memory and storage	Biotech
Holdings in common	0%
S&P 500, total return, since Apr 2, 2026	+19.3%
S&P 500, total return, 1 year		+17.3%
Against the S&P 500, since Apr 2, 2026	ahead by 86.7 pts
Against the S&P 500, 1 year		ahead by 27.7 pts
Below its all-time high	29.1%, high on Jun 22, 2026	11.1%, high on Feb 8, 2021

Holdings in common uses holdings dated Jun 30, 2026 and Oct 8, 2026.

15.7%

DRAM in the S&P 500

12.7%

XBI in the S&P 500

+106.0%

DRAM total return, since launch

+45.0%

XBI total return, 1 year

DRAM · 6 months to Oct 9, 202684% 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.

XBI · 1 year to Oct 9, 202687% of its weight is outside the S&P 500

13% of XBI's weight is in S&P 500 companies and 87% is outside the index. Holdings as of Oct 8, 2026.

ETFIQ Off-Index Score · XBI scores higherHow much of it is not the index it is sold as an alternative to?

DRAM 37.9

XBI 55.2

0.1, the lowest in this set92.3, the highest

A percentile among the 391 thematic ETFs with a holdings filing. All thematic ETFs ranked by it → How it is computed →

What they hold in common

By the books each fund has filed, DRAM and XBI hold 0% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated Jun 30, 2026 and Oct 8, 2026.

50%

half

0% in common

Positions both hold, largest shared weight first

Holding DRAM XBI

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%

Micron Technology Inc 2.03%

Only in XBI

MODERNA INC 2.20%

TWIST BIOSCIENCE CORP 1.84%

NATERA INC 1.79%

ABBVIE INC 1.65%

UNITED THERAPEUTICS CORP 1.59%

AMGEN INC 1.58%

BIOGEN INC 1.57%

HALOZYME THERAPEUTICS INC 1.55%

0% of the two portfolios are the same securities at the same weight.

Performance, window by window

	Total return		vs the S&P 500		vs the Nasdaq-100
Window	DRAM	XBI	DRAM	XBI	DRAM	XBI
3 months	−9.3%	−3.3%	−12.7 pts	−6.7 pts	−12.9 pts	−7.0 pts
6 months	+76.3%	+18.9%	+61.2 pts	+3.8 pts	+53.1 pts	−4.3 pts
1 year	not published	+45.0%	not published	+27.7 pts	not published	+21.4 pts
3 years	not published	+114.6%	not published	+28.8 pts	not published	+7.3 pts
Since launch DRAM Apr 2026 · XBI Feb 2006	+106.0%	+890.7%	+86.7 pts	+92.2 pts	+77.3 pts	−1,164.7 pts

Source: ETFIQ. Open the live comparison on ETFIQ →

On the same fields

DRAM

Roundhill Memory ETF · Holds 12 stocks in memory and storage, 16% of its weight in S&P 500 companies

XBI

State Street(R) SPDR(R) S&P(R) Biotech ETF · Holds 165 stocks in biotech, 13% of its weight in S&P 500 companies

Issuer Roundhill State Street

Theme Memory and storage Biotech

In the S&P 500 15.7% 12.7%

Active share vs the S&P 500 96.8% 98.4%

In the Nasdaq-100 15.7% 8.5%

Holdings 12 165

Top ten, share of the fund 56.4% 16.9%

Expense ratio 0.65% 0.35%

Fee for the differing part 0.67% 0.36%

Total return, 1 year +106.0% (since it first traded on Apr 2, 2026) +45.0%

vs the S&P 500 +86.7 pts +27.7 pts

vs the Nasdaq-100 +77.3 pts +21.4 pts

Below its high −29.1% −11.1%

Net assets, as of Oct 8, 2026 $24.2bn $9.9bn

As of Oct 9, 2026. Source: ETFIQ.

DRAM in plain words

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 +106.0% with distributions reinvested against +19.3% for the S&P 500, so a holder was ahead by 86.7 pts. It sits 29.1% below its all-time high of Jun 22, 2026.

XBI in plain words

By weight, 13% of XBI's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 98%. The top ten holdings are 17% of the fund across 165 positions, as published by its issuer for Oct 8, 2026. Over the year to Oct 9, 2026 the fund returned +45.0% with distributions reinvested against +17.3% for the S&P 500, so a holder was ahead by 27.7 pts. It sits 11.1% below its all-time high of Feb 8, 2021.

Questions people ask

Do DRAM and XBI hold the same stocks?: By their latest filings, 0% of their books are the same securities at the same weight, which is mostly different names. Overlap is the sum of the smaller weight of every security they share.
Which is more different from the S&P 500, DRAM or XBI?: DRAM has 16% of its weight in S&P 500 names and XBI has 13%, so XBI differs more from the index.
Which is cheaper, DRAM or XBI?: DRAM charges 0.65% a year and XBI charges 0.35%, so XBI is cheaper. Fees come from each fund's prospectus.

Other comparisons

DRAM vs IBB DRAM vs AIRR DRAM vs GDXJ DRAM vs GRID XBI vs IGV XBI vs PAVE XBI vs SOXX XBI vs GRID

DRAM on its own →XBI on its own →How every figure is computed →Standards and sources →

Where these figures came from

DRAM filings on SEC EDGAR ↗DRAM prospectus with the expense ratio (SEC) ↗Roundhill page for DRAM ↗XBI filings on SEC EDGAR ↗XBI prospectus with the expense ratio (SEC) ↗State Street website ↗

ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.

How this is computed

It is a position in a set, not a rating, and neither end of it is a recommendation.

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed.

Every figure is an ETFIQ calculation with distributions reinvested.

Cite this page

ETFIQ, DRAM against XBI, data as of Oct 9, 2026. https://etfiq.com/compare/themes/dram-vs-xbi

Open data

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