257 essays 1,087 funds measured independent · not paid by any fund or issuer we cover

Fund · Vanguard S&P Mid-Cap 400 Index Fund · measured from SEC filings

IVOO holdings

IVOO reports 403 holdings and behaves like 276.9 equally weighted ones, computed from its SEC Form N-PORT filing for 2026-05-31. The fact sheet publishes the first number; this page computes the second, and traces it across 27 quarters of filings.

Measured concentration

as of 2026-05-31
403 Positions reported
276.9 Effective holdings
1.5× Concentration multiple
8.32% Top ten weight

Computed by this site from the fund's SEC Form N-PORT filing; what the measure does not tell you · every fund in one table · hold it with other funds? X-ray the mix. Pricing: 100% at a quoted market price (level 1), one issuer country.

What stands out

as of 2026-05-31

IVOO's largest investment is Flex Ltd at 1.58% of net assets. Twilio Inc - A and Technipfmc PLC follow; the three together are 3.19%. Ten companies are 8.32% of the fund; the other 393 share the rest. Among the 721 equity funds measured here, IVOO behaves like 276.9 holdings against a median of 42.4 — 6.5 times the median. Across 27 quarterly filings IVOO has held roughly steady since 2019-11-30 (310.5 then, 276.9 now). Between the 2026-02-28 and 2026-05-31 filings 8 positions were added and 9 dropped; 10.5% of the weight moved.

Each sentence is read from the fund's own SEC filing; the class median is computed across the comparable equity funds on this site. Nothing here is a view on the fund.

Every filing since 2019

27

Between 2019-11-30 and 2026-05-31, IVOO went from behaving like 310.5 equally weighted positions to 276.9 — 11% fewer, while its top ten went from 6.51% to 8.32% of net assets. Read across the funds on the concentration-over-time table.

PeriodHoldingsEffective Top 10Largest
2026-05-31 403 276.9 8.32% 1.58%
2026-02-28 405 282.4 8.3% 1.44%
2025-11-30 404 293.6 7.74% 1.08%
2025-08-31 403 307.3 6.84% 0.91%
2025-05-31 404 307.2 6.69% 0.81%
2025-02-28 402 314.5 6.56% 0.84%
2024-11-30 404 313.4 6.6% 0.76%
2024-08-31 404 316.1 6.35% 0.74%
Earlier filings (19 more, back to 2019-11-30)
PeriodHoldingsEffectiveTop 10Largest
2024-05-31 402 318.5 6.54% 0.76%
2024-02-29 403 302.4 7.37% 1.52%
2023-11-30 405 324.1 6.35% 0.74%
2023-08-31 405 325.1 6.4% 0.8%
2023-05-31 404 324.3 6.25% 0.83%
2023-02-28 403 327.3 6.26% 0.77%
2022-11-30 405 324.7 6.49% 0.82%
2022-08-31 405 323 6.35% 0.75%
2022-05-31 402 329.6 6.19% 0.77%
2022-02-28 405 327.4 6.13% 0.77%
2021-11-30 402 315.8 6.71% 0.77%
2021-08-31 404 320.9 6.18% 0.66%
2021-05-31 402 327.3 5.93% 0.68%
2021-02-28 401 311.1 7.11% 0.95%
2020-11-30 403 301.9 7.19% 0.89%
2020-08-31 402 290.2 7.63% 0.88%
2020-05-31 404 289 7.7% 0.94%
2020-02-29 403 306 6.87% 0.85%
2019-11-30 403 310.5 6.51% 0.75%

One row per filed reporting period, newest first, read from EDGAR. Quarterly because that is the public filing cadence. Rows marked * are published but held out of the comparison above; the methodology page says when and why.

Largest positions, as filed

as of 2026-05-31

The 15 largest of 403 positions in IVOO's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: IVOO.csv.gz.

#PositionWeightCumulative
1Flex Ltd1.58%1.6%
2Twilio Inc0.82%2.4%
3TechnipFMC PLC0.79%3.2%
4Curtiss-Wright Corp0.79%4.0%
5nVent Electric PLC0.77%4.7%
6Sterling Infrastructure Inc0.75%5.5%
7XPO Inc0.72%6.2%
8Everpure Inc0.71%6.9%
9Illumina Inc0.71%7.6%
10United Therapeutics Corp0.68%8.3%
11ATI Inc0.68%9.0%
12MACOM Technology Solutions Holdings Inc0.67%9.7%
13Fabrinet0.67%10.3%
14Carpenter Technology Corp0.67%11.0%
15Nextpower Inc0.66%11.7%

Returns the fund reported

2019-09 – 2026-05

Monthly total returns from Item B.5 of IVOO's own filings, 81 months on record. Not computed here and not from a price feed.

25.8%Last twelve months filed
118%Whole series, compounded
14.3%Best month
-20.3%Worst month

Cross-checked against a series computed separately from prices: median difference 0.06 percentage points over 81 months, which is roughly the distributions. Every month with the filing it came from: IVOO.json · all funds.

Who borrows IVOO's shares

2026-05-31

The fund lends its holdings, and Item B.4.a of the filing names every firm holding them. At 2026-05-31, $15m was out to 9 borrowers, 0.27% of net assets. The largest, BARCLAYS BANK PLC, held 29.2% of it.

BorrowerOn loanShare of the loan
BARCLAYS BANK PLC $4m 29.2%
CITIGROUP GLOBAL MARKETS INC. $3m 18.8%
BofA Securities, Inc. $3m 16.6%
UBS SECURITIES LLC $2m 16.3%
HSBC BANK PLC $1m 7.0%

Cash collateral reported against the loan: 0.27% of net assets, 100.1% of the amount lent. That is a floor on the collateral, not the whole of it — collateral the fund does not hold as a position is not in this filing, so a figure under 100% is not evidence of under-collateralisation. How that figure behaves across all funds. Every quarter IVOO has filed, with each borrower: IVOO.json · all funds.

Since the previous filing

2026-02-28 → 2026-05-31

403 positions became 402: 8 added (2.4% of the fund at the later date), 9 dropped (4.0% at the earlier date). Half the sum of all weight changes, a turnover proxy: 10.5%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of IVOO compared this way, as a feed: changes.xml · all funds: filings received.

Largest increases2026-02-282026-05-31Largest decreases2026-02-282026-05-31
Flex Ltd0.68%1.58% Royal Gold Inc0.70%0.52%
Sterling Infrastructure Inc0.38%0.75% Tenet Healthcare Corp0.61%0.44%
Twilio Inc0.53%0.82% Hecla Mining Co0.48%0.34%
Okta Inc0.35%0.60% Tempur Sealy International Inc0.54%0.42%
nVent Electric PLC0.55%0.77% AECOM0.38%0.26%
TD SYNNEX Corp0.34%0.56% US Foods Holding Corp0.62%0.51%

New: SiTime Corp (0.45%), Solstice Advanced Materials Inc (0.38%), DigitalOcean Holdings Inc (0.35%), Moog Inc (0.29%), CareTrust REIT Inc (0.26%), SharkNinja Inc (0.25%). Gone: Lumentum Holdings Inc (1.44%), Coherent Corp (1.18%), Casey's General Stores Inc (0.74%), EchoStar Corp (0.45%), Flowers Foods Inc (0.06%), Kemper Corp (0.05%).

Asset categories and pricing

as of 2026-05-31

99.64% equity, 0.36% short-term investment as filed; 100.0% carried at a quoted market price (fair-value level 1). Categories and levels are the filer's; what a low level-1 share does and does not mean is in the measure's page.

Derivative exposure and counterparties

as of 2026-05-31

A position count cannot describe a fund that uses derivatives, because a swap is filed at its unrealised gain, not its exposure. These are the notionals the fund itself reported, against net assets of $5.60B. Notional of an interest-rate or currency swap is not equity exposure.

99.84%Stocks held directly
0.09%Swap notional (1)
0.07%Futures notional (1)
100%Sum, % of net assets
Swap counterpartyNotional% of net assets
Bank of America NA$5M0.09%

Financing leg as filed: the fund pays OBFR01 + 0% on $5M of long swap notional . Issuers fill the spread field differently (some file the all-in rate), so compare within an issuer, not across.

Full detail for every fund that files derivatives: leverage.json (CC BY 4.0).

Neighbours by effective holdings, equity funds

10

Every measured equity fund lined up by how many holdings it behaves like; these sit either side of IVOO (276.9). Same filings, same arithmetic. Position in this list says nothing about which fund is better.

FundReportsBehaves likeTop tenAs of
VXUS Vanguard Total International Stock Index Fund 8,832 253.6 13.32% 2026-07-31
IEFA iShares Core MSCI EAFE ETF 2,630 267.8 11.97% 2026-07-31
VEA Vanguard Developed Markets Index Fund 3,890 268.9 13.15% 2026-06-30
AVUV Avantis U.S. Small Cap Value ETF 797 272.3 8.67% 2026-05-31
KOMP State Street(R) SPDR(R) S&P Kensho New Economies Composite ETF 505 272.8 9.91% 2026-06-30
DWM WisdomTree International Equity Fund 1,406 277.3 11.38% 2026-06-30
VIOV Vanguard S&P Small-Cap 600 Value Index Fund 463 282.3 8.86% 2026-05-31
BSVO EA Bridgeway Omni Small-Cap Value ETF 576 283.5 7.98% 2026-06-30
DDWM WisdomTree Dynamic International Equity Fund 1,533 284.3 11.22% 2026-06-30
IMCB iShares Morningstar Mid-Cap ETF 396 285.6 6.94% 2026-07-31

Essays that examine IVOO

0

Mentions are detected across the full text of every article, so an appearance may be a passing comparison rather than the subject. Nothing here is a recommendation to buy or sell — see the disclaimer.