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NMSAX

Columbia Small Cap Index Fund

Index fundEquityTracks the S&P SmallCap 600 IndexOpen-end fund
COLUMBIA FUNDS SERIES TRUST: NMSAX · NMSCX · CXXRX · CSPYXHoldings as of May 31, 2026Filed Jul 29, 2026

U.S. stock index fund · tracks S&P SmallCap 600 Index

As of its 2026 Q2 report, Columbia Small Cap Index Fund held 606 positions with $2.58B in net assets. Its ten largest holdings made up 6.6% of the fund. The NMSAX share class costs 0.45% a year. Over the 12 months to May 2026, NMSAX returned 33.0%, with dividends reinvested. In 2026 Q2 it added 31 new positions and exited 33.

2026 Q2 holdings and allocationChanges are against the previous quarter, 2026 Q1Headline fees and returns use the NMSAX share class
Expense ratio · NMSAX
0.45%
$45 a year for every $10,000 invested
0.2% – 0.45% across the 4 classes
$2.58B
The whole fund, all share classes
606 holdings
6.6%in the top 10
Weight held in the ten largest holdings
Top 25 hold 13.6%
Return, 1 year · NMSAX
+33.0%
With dividends, to May 2026
3 yr total +55.8% · 5 yr total +30.6%
What this fund is
Objective, as filed

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.

What you own

per cent of the fund
CompanyWeightValue
0.82%
$21.17M
0.82%
$21.07M
COLUMBIA SHORT TERM CASH FUND
0.76%
$19.48M
iShares Core S&P Small-Cap ETF
0.71%
$18.38M
0.65%
$16.77M
0.63%
$16.35M
0.60%
$15.48M
0.56%
$14.41M
0.56%
$14.42M
0.54%
$13.81M
Showing 1–10 of 606 · the top 10 are 6.64% of the fund, the top 25 are 13.62%

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.

The 200 largest of 606 holdings, with the share counts as filed, open with a free account.

What the fund is made of

Percentages are of fund net assets. Rounding, liabilities and short positions can make totals differ from 100%.

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.

By sector

Financials
17.2%
Industrials
16.8%
Information Technology
15.6%
Consumer Discretionary
12.8%
10 other sectors
37.6%

How it has done

Total return, dividends reinvested · to May 2026

NMSAX share class · total returns with dividends reinvested

1 year
+32.96%
3 years
+55.78%
Cumulative, not per year
5 years
+30.65%
Cumulative, not per year
Largest decline in 3 years
-19.85%
From a previous high to a later low
Cumulative return, last three years· Jun 2023 – May 2026

Volatility over the last 12 months: 13.37%. Past returns are a record, not a forecast.

The 4 share classes hold the same portfolio

Share classExpense ratio1 year3 years5 yearsWorst fall
0.45%+32.96%+55.78%+30.65%-19.85%
0.20%+33.23%+56.92%+32.28%-19.76%
0.20%+33.18%+56.86%+32.22%-19.77%
0.20%+33.17%+56.84%+32.20%-19.74%

These classes hold the same portfolio, so the 1.63pp spread over 5 years is the cost difference between them — roughly 0.33pp a year — not a difference in what they own.

Fees & fund details

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
Expense ratio, by class
0.20% – 0.45%· NMSAX 0.45%
Portfolio turnover
22.00% a year · as of 2026 Q2

Turnover is how much of the portfolio was replaced in a year.

Classified from what the fund holds, not from its name · 2026 Q2. The summary is a paraphrase of the prospectus; the objective is verbatim.

What changed this quarter

2026 Q2 vs 2026 Q1

Positions that entered or left the fund since its previous filing. Positions that were only resized are not listed.

33 exited· the largest 8

Air Lease Corp
Sealed Air Corp
Piper Sandler Cos
Connected research

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