Columbia Small Cap Index Fund

COLUMBIA FUNDS SERIES TRUST · 4 share classes

U.S. equity index fund
One fund, 4 share classes:NMSAXNMSCXCXXRXCSPYX
$2.58B NAV
606 positions · as of 2026-05-31 · filed 2026-07-29

Fund classification

Classified from what the fund holds · as of 2026 Q2

Columbia Small Cap Index Fund is a U.S. equity index fund that tracks the S&P SmallCap 600 Index. 21% of NMSAX’s stock holdings are in companies whose revenue grew in the top quartile of U.S. companies over the last five fiscal years (covering 94% of the fund’s equity).

Asset class
Equity
Region
United States
Management
Index (passive)
Fund type
Open-end fund
Features
Non-diversified

Fund profile

As filed in the prospectus · 2026 Q2

Columbia Small Cap Index Fund (the Fund) seeks total return before fees and expenses that corresponds to the total return of the Standard & Poors (S&P) SmallCap 600 Index.

Strategy · summarised

The fund tracks the S&P SmallCap 600 Index by holding common stocks in approximately the same weightings as the Index, aiming for at least 95% correlation to its performance before fees and expenses. The fund may operate as non-diversified when the Index is non-diversified, allowing it to invest a greater percentage of assets in fewer issuers than a diversified fund would permit. Because the fund's weightings depend on the Index composition, performance may diverge from the Index if weightings drift between rebalancing periods.

Expenses
0.20% 0.45%across 4 share classes
Share classExpense ratio
NMSAX0.45%
NMSCX0.20%
CXXRX0.20%
CSPYX0.20%

Portfolio turnover 22.00% · as of 2026 Q2

Allocation

Asset groups · long / short shown separately, never netted · 2026 Q2

99.98%
of net assets
Stocks99.09%
Cash & short-term0.81%
Derivatives0.08%

Look-through blends 1 underlying fund; 0.0% of NAV was not looked through and stays direct-classified.

Sector allocation

The same holdings as Allocation above, grouped by market sector instead of asset type · as of 2026 Q2

100%
of net assets
Financials17.2%
Industrials16.8%
Information Technology15.6%
Consumer Discretionary12.8%
10 smaller37.6%

Government, Securitized and Cash are non-corporate buckets; International is foreign holdings we don’t sector-classify, and Other is the residual (held funds, unresolved names).

Portfolio growth profile

How much of the fund’s stock holdings are in fast-growing companies · as of 2026 Q2

Revenue growth
21%of stock holdings in top-quartile growers
covering 94% of the fund’s equity

Share of the fund’s equity (by value) in companies whose trailing five-year revenue — or net-income — growth ranks in the top 25% of U.S. public companies. Foreign and newly-listed holdings are excluded, so the figure covers only part of the book. From SEC filings — not investment advice. How we measure this.

Latest quarter

What changed since the fund's previous filing

2026Q2 vs 2026Q1: 31 new33 exited

Largest new: AGX, MOH, MTCH, PAYC, LW, LYFT, VSEC, PIPR

Largest exited: SOLS, MOG/A, IDCC, CTRE, SITM, Air Lease Corp, Sealed Air Corp, Piper Sandler Cos

Return profile

Chart:

Total return as filed — price change plus distributions reinvested · trailing figures to Apr 2026

Share class1-year3-year5-yearVolWorst fall
+38.42%+51.41%+31.88%13.54%-19.85%
+38.71%+52.51%+33.51%13.50%-19.76%
+38.72%+52.53%+33.52%13.53%-19.77%
+38.64%+52.53%+33.51%13.53%-19.74%

These classes hold the same portfolio, so the 1.65pp spread over 5 years is the cost difference between them — roughly 0.33pp a year — not a difference in what they own.

Cumulative return· Jun 2023 – Apr 2026

May 2026 has been filed since the trailing figures were struck, so it is not in the table above or the curve — every figure here shares one cut-off, which is what makes them comparable with other funds.

Holdings

By % of NAV · equity positions carry filed share counts · every resolvable issuer links to its company page

Issuer%NAVValue
Sanmina CorpSANM0.82%$21.17M
Semtech CorpSMTC0.82%$21.07M
COLUMBIA SHORT TERM CASH FUND0.76%$19.48M
iShares Core S&P Small-Cap ETF0.71%$18.38M
Viavi Solutions IncVIAV0.65%$16.77M
Viasat IncVSAT0.63%$16.35M
Lumen Technologies IncLUMN0.60%$15.48M
Element Solutions IncESI0.56%$14.41M
FormFactor IncFORM0.56%$14.42M
Argan IncAGX0.54%$13.81M
Showing 10 of 606Sign in to see more

Reported price is the fund's own reported value divided by its own reported shares at 2026-05-31 — not a live quote, and not what the fund paid.

Top 10 positions are 6.64% of net assets, top 25 13.62%, across 603 issuers.

See more of this fund's book

More positions with filed share counts, and the quarter-over-quarter change list rather than the largest few — free with an account, no card required.

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