Skip to content

RWK vs SPMD

Invesco S&P MidCap 400 Revenue ETF

RWKCNYSE Arca

State Street SPDR Portfolio S&P 400 Mid Cap ETF

SPMDANYSE Arca

Overlap

Expense ratio

SPMD −0.36pt a year

RWK0.39%SPMD0.03%

Avg volume · 30D

SPMD 84.7×the volume

RWK19.3KSPMD1.64M

10Y return · a year

RWK +1.8pt

RWK+12.9%SPMD+11.1%

RWK vs SPMD Performance

Oct 29, 2021 – Oct 30, 2026

+69.6%RWK+41.5%SPMD

Oct 29, 2021 to Oct 30, 2026. RWK +69.6%. SPMD +41.5%. Use the arrow keys to read each point.−20%0%20%Oct 2021Apr 2024Oct 2026
Expense ratio
RWK 0.39%
SPMD 0.03%, better
Fund size
RWK $1.32B
SPMD $18.9B
1Y total return
RWK +19.1%, better
SPMD +14.4%
Yield (12M)
RWK 1.05%
SPMD 1.31%, better
Holdings
RWK 399
SPMD 402
Avg volume (30D)
RWK 19.3K sh
SPMD 1.64M sh, better
NAV per share
RWK $145.36
SPMD $65.00
52W range

ETF.net Grade

RWK: Cost 14, Risk 49, Mission 95, Tradability 29, Holdings 35, Durability 41. SPMD: Cost 96, Risk 52, Mission 100, Tradability 78, Holdings 83, Durability 73.
Pillar letters and Scores for RWK, SPMD, with each pillar’s weight
PillarRWKSPMD
Cost30% weightF14A96Higher
Mission25% weightA95A100Higher
Risk15% weightC49C52Higher
Tradability15% weightD29A78Higher
Holdings10% weightD35A83Higher
Durability5% weightC41A73Higher

Rank among S&P MidCap 400 funds

Same Category. Both funds are graded against the same funds, so their Grades compare head to head.

Same Category. RWK and SPMD are both graded against the same 11 S&P MidCap 400 funds, so their Grades compare head to head.

S&P MidCap 400⁠

Category · 11 funds
See all 11 ›

SPMD ranks 1st and RWK 9th of 11 funds in the S&P MidCap 400 Category.

  1. Rank 1ASPMDState Street SPDR Portfolio S&P 400 Mid Cap ETFScore 85
  2. Rank 2AIJHiShares Core S&P Mid-Cap ETFScore 84
  3. Rank 8BIJJiShares S&P Mid-Cap 400 Value ETFScore 58
  4. Rank 9CRWKInvesco S&P MidCap 400 Revenue ETFScore 45
  5. Rank 10CMIDEXtrackers S&P MidCap 400 Scored & Screened ETFScore 40

Our read on each fund

ETF.net Research

RWKCInvesco S&P MidCap 400 Revenue ETF

SPMDAState Street SPDR Portfolio S&P 400 Mid Cap ETF

In short

RWK Same 400 mid-cap companies as the standard S&P MidCap 400, but position size comes from annual revenue instead of market value. Sales set the weights, not sentiment. Invesco has run this playbook since 2008.

SPMD Four ETFs track the S&P MidCap 400. This is the cheapest of them at 0.03%, a fraction of what the priciest wrapper on the identical 400 stocks charges. Same index, smaller toll booth.

Stated mandate

RWK The fund seeks to track the S&P MidCap 400 Revenue-Weighted Index by investing at least 90% of its total assets in securities included in that Index.

SPMD The fund seeks to track the total return performance of the S&P MidCap 400 Index before fees and expenses, providing exposure to mid-cap U.S. equities.

Why people hold it

  • RWK The whole idea in one line: take the S&P MidCap 400 roster and reweight it by revenue. Big top-line companies get bigger slots, expensive-per-dollar-of-sales names get trimmed.spglobal.com
  • Roughly 400 holdings and a rules-based index behind them, so the portfolio is broad mid-cap rather than a stock-picker's short list.
  • It sticks close to the index it advertises. Tracking has been one of this fund's strongest attributes, so what you get matches what the fact sheet describes.
  • Distributions land on a quarterly schedule, and the fund has been through a full market cycle since its 2008 launch.
  • SPMD 0.03% a year for the S&P MidCap 400. The other funds tracking that same index charge 0.05% (IJH), 0.07% (IVOO) and 0.23% (MDY).
  • Boring done well: about 400 mid-cap US stocks, one published S&P index, and tracking measured as among the tightest in its peer group.
  • A multi-billion-dollar fund that trades actively, so entering and exiting is rarely the hard part.
  • Stands in the top tier of the S&P MidCap 400 wrappers we grade, driven by fee and tracking rather than any clever twist.

Worth knowing

  • RWK 0.39% a year is the price of the twist. Plain S&P 400 trackers charge far less (SPMD 0.03%, IJH 0.05%), so the revenue tilt carries a real cost hurdle.
  • Volume is light next to the mid-cap heavyweights, which tends to mean wider bid-ask spreads on the way in and out.
  • Revenue weighting favors high-sales, thinner-margin businesses, so sector mix and value tilt drift away from the cap-weighted S&P MidCap 400.spglobal.com
  • SPMD Mid caps swing harder than mega caps in both directions. Volatility is the softest of this fund's measured marks.
  • One slice only: US mid-cap equity. No large caps, no small caps, no bonds, nothing overseas.
  • Cash comes quarterly, not monthly.

Full RWK profile⁠

Full SPMD profile⁠

RWK vs SPMD Holdings

How we measure overlap

Each holding counts at its smaller weight in the two funds, summed over the full Holdings. Sector, country and asset class use the same rule on each fund’s split. Cash, FX and derivative lines stay out of the counts. Two bond funds get no overlap figure.

RWK vs SPMD Cost

Overpaying RWK vs SPMD

$7,260

On $10,000 over 30 years. 7% growth a year before fees, expense ratio only.

  • RWK 0.39%

    $7,898

  • SPMD 0.03%

    $638

$10,000
30 years

Cost over time

  • RWK 0.39%
  • SPMD 0.03%
  • Overpaying
One line per fund, from year 0 to year 30. Use the arrow keys to read each point.$0$2K$4K$6K$8K051015202530RWK $7,898SPMD $638

Year by year

YearRWKSPMDOverpaying
10$705$55$650
20$2,725$216$2,509
30$7,898$638$7,260

Expense ratio

  • 0.39%RWK
  • 0.03%SPMD, cheaper
  • Middle half of S&P MidCap 400 funds
  • Median 0.15%

SPMD cheapest of 11 funds

RWK 10th cheapest of 11 funds

RWK vs SPMD Dividends

Last 12 months to Oct 30, 2026
Yield (12M)
RWK 1.05%
SPMD 1.31%, better
Payout (12M)
RWK $1.52
SPMD $0.84
Last payment
RWK $0.41
SPMD $0.23
Ex-dividend
RWK Sep 21, 2026
SPMD Sep 21, 2026
Paid on
RWK Sep 25, 2026
SPMD Sep 23, 2026
Frequency
RWK Quarterly
SPMD Quarterly

Distribution history

Per share, 2017 to 2026, same scale for both

RWKQuarterly · 38 paymentsAll RWK payments⁠
One bar per payment. 38 payments from 2017 to 2026 YTD. Apr 4, 2017 $0.12; Oct 3, 2017 $0.16; Dec 28, 2017 $0.18; Mar 16, 2018 $0.11; Jun 19, 2018 $0.15; Sep 25, 2018 $0.16; Dec 26, 2018 $0.21; Mar 19, 2019 $0.10; Jun 24, 2019 $0.16; Sep 23, 2019 $0.20; Dec 23, 2019 $0.25; Mar 23, 2020 $0.22; Jun 22, 2020 $0.17; Sep 21, 2020 $0.14; Dec 21, 2020 $0.15; Mar 22, 2021 $0.17; Jun 21, 2021 $0.17; Sep 20, 2021 $0.27; Dec 20, 2021 $0.20; Mar 21, 2022 $0.23; Jun 21, 2022 $0.29; Sep 19, 2022 $0.27; Dec 19, 2022 $0.22; Mar 20, 2023 $0.27; Jun 20, 2023 $0.30; Sep 18, 2023 $0.24; Dec 18, 2023 $0.29; Mar 18, 2024 $0.32; Jun 24, 2024 $0.34; Sep 23, 2024 $0.31; Dec 23, 2024 $0.33; Mar 24, 2025 $0.38; Jun 23, 2025 $0.47; Sep 22, 2025 $0.37; Dec 22, 2025 $0.37; Mar 23, 2026 $0.40; Jun 22, 2026 $0.34; Sep 21, 2026 $0.41. Use the arrow keys to read each point.$0$0.502017202020232026YTD
SPMDQuarterly · 39 paymentsAll SPMD payments⁠
One bar per payment. 39 payments from 2017 to 2026 YTD. Mar 17, 2017 $0.09; Jun 16, 2017 $0.11; Sep 15, 2017 $0.11; Dec 15, 2017 $0.35; Mar 19, 2018 $0.11; Jun 18, 2018 $0.13; Sep 24, 2018 $0.14; Dec 24, 2018 $0.16; Mar 18, 2019 $0.11; Jun 24, 2019 $0.14; Sep 23, 2019 $0.14; Dec 23, 2019 $0.18; Mar 23, 2020 $0.14; Jun 22, 2020 $0.13; Sep 21, 2020 $0.09; Dec 21, 2020 $0.17; Mar 22, 2021 $0.13; Jun 21, 2021 $0.16; Sep 20, 2021 $0.23; Dec 20, 2021 $0.11; Mar 21, 2022 $0.15; Jun 21, 2022 $0.19; Sep 19, 2022 $0.20; Dec 19, 2022 $0.17; Mar 20, 2023 $0.16; Jun 20, 2023 $0.19; Sep 18, 2023 $0.18; Dec 18, 2023 $0.19; Mar 18, 2024 $0.16; Jun 24, 2024 $0.21; Sep 23, 2024 $0.20; Dec 23, 2024 $0.21; Mar 24, 2025 $0.18; Jun 23, 2025 $0.21; Sep 22, 2025 $0.20; Dec 22, 2025 $0.22; Mar 23, 2026 $0.18; Jun 22, 2026 $0.21; Sep 21, 2026 $0.23. Use the arrow keys to read each point.$0$0.502017202020232026YTD

RWK vs SPMD Risk

Fall from peak · 5 years

  • RWK
  • SPMD
Oct 29, 2021 to Oct 30, 2026. Worst fall: SPMD −24.1% · Apr 2025. Use the arrow keys to read each point.−25%−20%−15%−10%−5%0%Oct 2021Apr 2024Oct 2026

Risk facts

VolatilityStd dev, 3 years
RWK 16.4%SPMD 15.1%, better
Return per unit of riskSharpe ratio, 3 years
RWK 0.89, betterSPMD 0.85
Worst fallMax drawdown, 5 years
RWK −24.6%SPMD −24.1%, better
Market sensitivityBeta, 5 years
RWK 1.04SPMD 1.02

Popular comparisons

  • RWKCvsIJHA

    Invesco S&P MidCap 400 Revenue ETF · iShares Core S&P Mid-Cap ETF

    Expense ratio
    0.39% · 0.05%
    Category
    Same Category. Both funds are graded against the same funds, so their Grades compare head to head.
  • SPMDAvsIJHA

    State Street SPDR Portfolio S&P 400 Mid Cap ETF · iShares Core S&P Mid-Cap ETF

    Expense ratio
    0.03% · 0.05%
    Category
    Same Category. Both funds are graded against the same funds, so their Grades compare head to head.
  • RWKCvsIVOOA

    Invesco S&P MidCap 400 Revenue ETF · Vanguard S&P Mid-Cap 400 ETF

    Expense ratio
    0.39% · 0.07%
    Category
    Same Category. Both funds are graded against the same funds, so their Grades compare head to head.
  • SPMDAvsIVOOA

    State Street SPDR Portfolio S&P 400 Mid Cap ETF · Vanguard S&P Mid-Cap 400 ETF

    Expense ratio
    0.03% · 0.07%
    Category
    Same Category. Both funds are graded against the same funds, so their Grades compare head to head.
  • RWKCvsMDYB

    Invesco S&P MidCap 400 Revenue ETF · State Street SPDR S&P MIDCAP 400 ETF Trust

    Expense ratio
    0.39% · 0.23%
    Category
    Same Category. Both funds are graded against the same funds, so their Grades compare head to head.
  • SPMDAvsMDYB

    State Street SPDR Portfolio S&P 400 Mid Cap ETF · State Street SPDR S&P MIDCAP 400 ETF Trust

    Expense ratio
    0.03% · 0.23%
    Category
    Same Category. Both funds are graded against the same funds, so their Grades compare head to head.