UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED

MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number  811-09475

Nuveen AMT-Free Municipal Credit Income Fund

(Exact name of registrant as specified in charter)

Nuveen Investments

333 West Wacker Drive

Chicago, IL 60606

(Address of principal executive offices) (Zip code)

Mark L. Winget

Nuveen Investments

333 West Wacker Drive

Chicago, IL 60606

(Name and address of agent for service)

Registrant’s telephone number, including area code:  (312) 917-7700

Date of fiscal year end:  October 31

Date of reporting period:  April 30, 2024

Form N-CSR is to be used by management investment companies to file reports with the Commission not later than 10 days after the transmission to stockholders of any report that is required to be transmitted to stockholders under Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1). The Commission may use the information provided on Form N-CSR in its regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-CSR, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-CSR unless the Form displays a currently valid Office of Management and Budget (“OMB”) control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. ss. 3507.

ITEM 1. REPORTS TO STOCKHOLDERS.

Closed-End

Funds

Closed-End

Funds

Nuveen

Municipal

April

30,2024

Semi-Annual

Report

This

semi-annual

report

contains

the

Funds'

unaudited financial

statements.

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

NVG

Nuveen

Municipal

Credit

Income

Fund

NZF

Nuveen

Municipal

High

Income

Opportunity

Fund

NMZ

Nuveen

Municipal

Credit

Opportunities

Fund

NMCO

Nuveen

Dynamic

Municipal

Opportunities

Fund

NDMO

2

Table

of

Contents

Important

Notices

3

Fund

Leverage

4

Common

Share

Information

5

About

the

Funds’

Benchmarks

7

Performance

Overview

and

Holding

Summaries

8

Portfolios

of

Investments

18

Statement

of

Assets

and

Liabilities

184

Statement

of

Operations

185

Statement

of

Changes

in

Net

Assets

186

Statement

of

Cash

Flows

189

Financial

Highlights

190

Notes

to

Financial

Statements

198

Risk

Considerations

216

Additional

Fund

Information

217

Glossary

of

Terms

Used

in

this

Report

218

Annual

Investment

Management

Agreement

Approval

Process

219

Important

Notices

3

Portfolio

Manager

Commentaries

in

Semi-annual

Shareholder

Reports

The

Funds

include

portfolio

manager

commentary

in

their

annual

shareholder

reports.

For

the

Funds’

most

recent

annual

portfolio

manager

discussion,

please

refer

to

the

Portfolio

Managers’

Comments

section

of

each

Fund’s

October

31,

2023

annual

shareholder

report.

For

current

information

on

your

Fund’s

investment

objectives,

portfolio

management

team

and

average

annual

total

returns

please

refer

to

the

Fund’s

website

at

www.nuveen.com.

For

changes

that

occurred

to

your

Fund

both

during

and

subsequent

to

this

reporting

period,

please

refer

to

the

Notes

to

Financial

Statements

section

of

this

report.

For

average

annual

total

returns

as

of

the

end

of

this

reporting

period,

please

refer

to

the

Performance

Overview

and

Holding

Summaries

section

within

this

report.

Management

Fees

As

of

May

1,

2024,

each

Fund’s

overall

complex-level

fee

begins

at

a

maximum

rate

of

0.1600%

of

each

Fund’s

average

daily

net

assets,

with

breakpoints

for

eligible

complex-level

assets

above

$124.3

billion.

Therefore,

the

maximum

management

fee

rate

for

each

Fund

is

the

fund-level

fee

listed

within

this

report

plus

0.1600%.

Refer

to

the

Notes

to

Financial

Statements

within

this

report

for

further

details

on

the

Funds’

management

fees.

4

Fund

Leverage

IMPACT

OF

THE

FUNDS’

LEVERAGE

STRATEGY

ON

PERFORMANCE

One

important

factor

impacting

the

returns

of

the

Funds’

common

shares

relative

to

their

comparative

benchmarks

was

the

Funds’

use

of

leverage

through

their

issuance

of

preferred

shares

and/or

investments

in

inverse

floating

rate

securities,

which

represent

leveraged

investments

in

underlying

bonds.

The

Funds

use

leverage

because

our

research

has

shown

that,

over

time,

leveraging

provides

opportunities

for

additional

income.

The

opportunity

arises

when

short-term

rates

that

a

Fund

pays

on

its

leveraging

instruments

are

lower

than

the

interest

the

Fund

earns

on

its

portfolio

of

long-term

bonds

that

it

has

bought

with

the

proceeds

of

that

leverage.

However,

use

of

leverage

can

expose

Fund

common

shares

to

additional

price

volatility.

When

a

Fund

uses

leverage,

the

Fund’s

common

shares

will

experience

a

greater

increase

in

their

net

asset

value

if

the

securities

acquired

through

the

use

of

leverage

increase

in

value,

but

will

also

experience

a

correspondingly

larger

decline

in

their

net

asset

value

if

the

securities

acquired

through

leverage

decline

in

value.

All

this

will

make

the

shares’

total

return

performance

more

variable

over

time.

In

addition,

common

share

income

in

levered

funds

will

typically

decrease

in

comparison

to

unlevered

funds

when

short-term

interest

rates

increase

and

increase

when

short-term

interest

rates

decrease.

In

recent

quarters,

fund

leverage

expenses

have

generally

tracked

the

overall

movement

of

short-term

interest

rates.

While

fund

leverage

expenses

are

higher

than

their

prior

year

lows,

leverage

nevertheless

continues

to

provide

the

opportunity

for

incremental

common

share

income,

particularly

over

longer-term

periods.

The

Funds'

use

of

leverage

significantly

contributed

to

relative

performance

during

the

reporting

period.

As

of

April

30,

2024,

the

Funds’

percentages

of

leverage

are

as

shown

in

the

accompanying

table.

i

THE

FUNDS’

REGULATORY

LEVERAGE

As

of

April

30,

2024,

the

Funds

have

issued

and

outstanding

preferred

shares

as

shown

in

the

accompanying

table.

Refer

to

Notes

to

Financial

Statements

for

further

details

on

preferred

shares

and

each

Fund’s

respective

transactions.

NVG

NZF

NMZ

NMCO

NDMO

Effective

Leverage

*

40.74%

39.44%

39.65%

41.16%

28.37%

Regulatory

Leverage

*

37.98%

33.45%

22.70%

39.69%

27.00%

*

Effective

Leverage

is

a

Fund’s

effective

economic

leverage,

and

includes

both

regulatory

leverage

and

the

leverage

effects

of

certain

derivative

and

other

investments

in

a

Fund’s

portfolio

that

increase

the

Fund’s

investment

exposure.

Currently,

the

leverage

effects

of

Tender

Option

Bond

(TOB)

inverse

floater

holdings

are

included

in

effective

leverage

values,

in

addition

to

any

regulatory

leverage.

Regulatory

leverage

consists

of

preferred

shares

issued

or

borrowings

of

a

Fund.

Both

of

these

are

part

of

a

Fund’s

capital

structure.

A

Fund,

however,

may

from

time

to

time

borrow

on

a

typically

transient

basis

in

connection

with

its

day-to-day

operations,

primarily

in

connection

with

the

need

to

settle

portfolio

trades.

Such

incidental

borrowings

are

excluded

from

the

calculation

of

a

Fund’s

effective

leverage

ratio.

Regulatory

leverage

is

subject

to

asset

coverage

limits

set

forth

in

the

Investment

Company

Act

of

1940.

Variable

Rate

Preferred*

Variable

Rate

Remarketed

Preferred**

Fund

Shares

Issued

at

Liquidation

Preference

Shares

Issued

at

Liquidation

Preference

Total

NVG

$67,400,000

$1,686,600,000

$1,754,000,000

NZF

  $

1,172,000,000

$146,000,000

$1,318,000,000

NMZ

$357,000,000

$-

$357,000,000

NMCO

$315,000,000

$100,000,000

$415,000,000

NDMO

$240,000,000

$-

$240,000,000

*

Preferred

shares

of

the

Fund

featuring

a

floating

rate

dividend

based

on

a

predetermined

formula

or

spread

to

an

index

rate.

Includes

the

following

preferred

shares

AMTP,

iMTP

,

MFP-VRM

and

VRDP

in

Special

Rate

Mode,

where

applicable.

See

Notes

to

Financial

Statements

for

further

details.

**

Preferred

shares

of

the

Fund

featuring

floating

rate

dividends

set

by

a

remarketing

agent

via

a

regular

remarketing.

Includes

the

following

preferred

shares

VRDP

not

in

Special

Rate

Mode,

MFP-VRRM

and

MFP-VRDM,

where

applicable.

See

Notes

to

Financial

Statements

for

further

details.

Common

Share

Information

5

NVG,

NZF,

NMZ

and

NMCO

COMMON

SHARE

DISTRIBUTION

INFORMATION

The

following

information

regarding

the

distributions

for

NVG,

NZF,

NMZ

and

NMCO

are

current

as

of

April

30,

2024.

Each

Fund’s

distribution

levels

may

vary

over

time

based

on

each

Fund’s

investment

activity

and

portfolio

investments

value

changes.

During

the

current

reporting

period,

each

Fund’s

distributions

to

common

shareholders

were

as

shown

in

the

accompanying

table.

NVG,

NZF,

NMZ

and

NMCO

sought

to

pay

regular

monthly

dividends

out

of

their

net

investment

income

at

a

rate

that

reflected

their

past

and

projected

net

income

performance.

To

permit

each

Fund

to

maintain

a

more

stable

monthly

dividend,

the

Fund

paid

dividends

at

a

rate

that

may

be

more

or

less

than

the

amount

of

net

income

actually

earned

by

the

Fund

during

the

period.

Distributions

to

common

shareholders

are

determined

on

a

tax

basis,

which

may

differ

from

amounts

recorded

in

the

accounting

records.

In

instances

where

the

monthly

dividend

exceeds

the

earned

net

investment

income,

the

Fund

would

report

a

negative

undistributed

net

ordinary

income.

Refer

to

Notes

to

Financial

Statements

for

additional

information

regarding

the

amounts

of

undistributed

net

ordinary

income

and

undistributed

net

long-term

capital

gains

and

the

character

of

the

actual

distributions

paid

by

the

Fund

during

the

period.

NDMO

made

regular

cash

distributions

to

shareholders

of

a

stated

dollar

amount

per

share.

Subject

to

approval

and

oversight

by

the

Board

of

Trustees,

the

Fund

sought

to

maintain

a

stable

distribution

level

designed

to

deliver

the

long-term

return

potential

of

the

Fund’s

investment

strategy

through

regular

distributions

(a

“Managed

Distribution

Program”).

The

practice

of

maintaining

a

stable

distribution

level

had

no

material

effect

on

the

Fund’s

investment

strategy

during

the

most

recent

fiscal

period

and

is

not

expected

to

have

such

an

effect

in

future

periods,

however,

distributions

in

excess

of

Fund

returns

would

cause

its

NAV

per

share

to

erode.

For

additional

information,

refer

to

the

Notes

to

Financial

Statements

herein.

Effective

for

distributions

payable

on

December

1,

2023,

(December

29,

2023

for

NDMO)

each

Fund’s

distribution

policy,

which

may

be

changed

by

the

Board,

is

to

make

regular

monthly

cash

distributions

to

holders

of

its

common

shares

(stated

in

terms

of

a

fixed

cents

per

common

share

dividend

distribution

rate

which

may

be

set

from

time

to

time).

The

Fund

intends

to

distribute

all

or

substantially

all

of

its

net

investment

income

each

year

through

its

regular

monthly

distribution

and

to

distribute

realized

capital

gains

at

least

annually.

In

addition,

in

any

monthly

period,

to

maintain

its

declared

per

common

share

distribution

amount,

the

Fund

may

distribute

more

or

less

than

its

net

investment

income

during

the

period.

In

the

event

the

Fund

distributes

more

than

its

net

investment

income

during

any

yearly

period,

such

distributions

may

also

include

realized

gains

and/or

a

return

of

capital.

To

the

extent

that

a

distribution

includes

a

return

of

capital

the

NAV

per

share

may

erode.

If

the

Fund’s

distribution

includes

anything

other

than

net

investment

income,

the

Fund

will

provide

a

notice

to

shareholders

of

its

best

estimate

of

the

distribution

sources

at

that

the

time

of

the

distribution.

These

estimates

may

not

match

the

final

tax

characterization

(for

the

full

year’s

distributions)

contained

in

shareholders’

1099-DIV

forms

after

the

end

of

the

year.

NUVEEN

CLOSED-END

FUND

DISTRIBUTION

AMOUNTS

The

Nuveen

Closed-End

Funds’

monthly

and

quarterly

periodic

distributions

to

shareholders

are

posted

on

www.nuveen.com

and

can

be

found

on

Nuveen’s

enhanced

closed-end

fund

resource

page,

which

is

at

https://www.nuveen.com/resource-center-closedend

funds,

along

with

other

Nuveen

closed-end

fund

product

updates.

To

ensure

timely

access

to

the

latest

information,

shareholders

may

use

a

subscribe

function,

which

can

be

activated

at

this

web

page

(https://www.nuveen.com/subscriptions).

Per

Common

Share

Amounts

Monthly

Distributions

(Ex-Dividend

Date)

NVG

NZF

NMZ

NMCO

November

$0.0505

$0.0515

$0.0425

$0.0455

December

0.0505

0.0515

0.0425

0.0455

January

0.0505

0.0515

0.0425

0.0455

February

0.0505

0.0515

0.0425

0.0455

March

0.0575

0.0575

0.0475

0.0500

April

0.0575

0.0575

0.0475

0.0500

Total

Distributions

from

Net

Investment

Income

$0.3170

$0.3210

$0.2650

$0.2820

Yields

NVG

NZF

NMZ

NMCO

Market

Yield

1

5.97%

5.90%

5.54%

5.92%

Taxable-Equivalent

Yield

1

10.08%

9.97%

9.22%

9.93%

1

Market

Yield

is

based

on

the

Fund’s

current

annualized

monthly

dividend

divided

by

the

Fund’s

current

market

price

as

of

the

end

of

the

reporting

period.

Taxable-

Equivalent

Yield

represents

the

yield

that

must

be

earned

on

a

fully

taxable

investment

in

order

to

equal

the

yield

of

the

Fund

on

an

after-tax

basis.

It

is

based

on

a

federal

income

tax

rate

of

40.8%.

Your

actual

federal

income

tax

rate

may

differ

from

the

assumed

rate.

The

Taxable-Equivalent

Yield

also

takes

into

account

the

percentage

of

the

Fund’s

income

generated

and

paid

by

the

Fund

(based

on

payments

made

during

the

previous

calendar

year)

that

was

not

exempt

from

federal

income

tax.

Separately,

if

the

comparison

were

instead

to

investments

that

generate

qualified

dividend

income,

which

is

taxable

at

a

rate

lower

than

an

individual’s

ordinary

graduated

tax

rate,

the

fund’s

Taxable-Equivalent

Yield

would

be

lower.

6

Common

Share

Information

(continued)

COMMON

SHARE

EQUITY

SHELF

PROGRAMS

During

the

current

reporting

period,

NVG,

NMZ,

NMCO

and

NDMO were

authorized

by

the

Securities

and

Exchange

Commission

to

issue

additional

common

shares

through

an

equity

shelf

program

(Shelf

Offering).

Under

these

programs,

NVG,

NMZ,

NMCO

and

NDMO,

subject

to

market

conditions,

may

raise

additional

capital

from

time

to

time

in

varying

amounts

and

offering

methods

at

a

net

price

at

or

above

the

Fund's

NAV

per

common

share.

The

maximum

aggregate

offering under

these

Shelf

Offerings

are

as

shown

in

the

accompanying

table.

During

the

current

reporting

period,

NVG,

NMZ,

NMCO

and

NDMO

did

not

sell

any

common

shares

through

their

Shelf

Offerings.

Refer

to

Notes

to

Financial

Statements,

for

further

details

of

Shelf

Offerings

and

each

Fund’s

transactions.

COMMON

SHARE

REPURCHASES

The

Funds’

Board

of

Trustees

reauthorized

an

open-market

share

repurchase

program,

allowing

each

Fund

to

repurchase

and

retire

an

aggregate

of

up

to

approximately

10%

of

its

outstanding

common

shares.

During

the

current

reporting

period,

the

Funds

did

not

repurchase

any

of

their

outstanding

common

shares.

As

of

April

30,

2024,

(and

since

the

inception

of

the

Funds’

repurchase

programs),

each

Fund

has

cumulatively

repurchased

and

retired

its

outstanding

common

shares

as

shown

in

the

accompanying

table.

OTHER

COMMON

SHARE

INFORMATION

As

of

April

30,

2024,

the

Funds’

common

share

prices

were

trading

at

a

premium/(discount)

to

their

common

share

NAVs

and

trading

at

an

average

premium/(discount)

to

NAV

during

the

current

reporting

period,

as

follows:

NVG

NMZ*

NMCO

NDMO

Maximum

aggregate

offering

Unlimited

Unlimited

$90,000,000

$250,000,000

*

The

Fund

carried

forward

13,340,607

common

shares

from

the

19,500,000

additional

previously

authorized

common

shares.

NVG

NZF

NMZ

NMCO

NDMO

Common

shares

repurchased

and

retired

202,500

67,500

0

0

0

Common

shares

authorized

for

repurchase

21,350,000

19,370,000

11,050,000

5,480,000

5,955,000

NVG

NZF

NMZ

NMCO

NDMO

Common

share

NAV

$13.41

$13.54

$11.00

$11.51

$10.89

Common

share

price

$11.55

$11.69

$10.29

$10.14

$10.68

Premium/(Discount)

to

NAV

(13.87)%

(13.66)%

(6.45)%

(11.90)%

(1.93)%

Average

premium/(discount)

to

NAV

(13.98)%

(13.65)%

(8.39)%

(10.73)%

(4.63)%

About

the

Funds’

Benchmarks

7

S&P

Municipal

Bond

High

Yield

Index:

An

index

designed

to

measure

the

performance

of

tax-exempt

high

yield

municipal

bonds.

Index

returns

assume

reinvestment

of

distributions,

but

do

not

reflect

any

applicable

sales

charges

or

management

fees.

S&P

Municipal

Bond

Index

:

An

index

designed

to

measure

the

performance

of

the

tax-exempt

U.S.

municipal

bond

market.

Index

returns

assume

reinvestment

of

distributions,

but

do

not

reflect

any

applicable

sales

charges

or

management

fees.

S&P

Municipal

Bond

Investment

Grade

Index:

An

index

designed

to

measure

the

performance

of

tax-exempt

investment

grade

municipal

bonds.

Index

returns

assume

reinvestment

of

distributions,

but

do

not

reflect

any

applicable

sales

charges

or

management

fees.

S&P

Municipal

Yield

Index:

An

index

that

is

structured

so

that

70%

of

the

index

consists

of

bonds

that

are

either

not

rated

or

are

rated

below

investment

grade,

20%

are

rated

BBB/Baa,

and

10%

are

rated

single

A.

Index

returns

assume

reinvestment

of

distributions,

but

do

not

reflect

any

applicable

sales

charges

or

management

fees.

8

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

Performance

Overview

and

Holding

Summaries

April

30,

2024

NVG

Refer

to

the

Glossary

of

Terms

Used

in

this

Report

for

further

definition

of

the

terms

used

within

this

section.

Fund

Performance*

*

For

purposes

of

Fund

performance,

relative

results

are

measured

against

the

NVG

Blended

Benchmark.

The

Fund’s

Blended

Benchmark

consists

of:

1)

60%

S&P

Municipal

Bond

Investment

Grade

Index

and

2)

40%

S&P

Municipal

Bond

High

Yield

Index.

The

Fund’s

performance

was

measured

against

the

S&P

Municipal

Bond

Index

through

April

10,

2016.

Performance

data

shown

represents

past

performance

and

does

not

predict

or

guarantee

future

results.

Current

per-

formance

may

be

higher

or

lower

than

the

data

shown.

Returns

do

not

reflect

the

deduction

of

taxes

that

shareholders

may

have

to

pay

on

Fund

distributions

or

upon

the

sale

of

Fund

shares.

Returns

at

NAV

are

net

of

Fund

expenses,

and

assume

reinvestment

of

distributions.

Comparative

index

return

information

is

provided

for

the

Fund’s

shares

at

NAV

only.

Indexes

are

not

available

for

direct

investment.

Daily

Common

Share

NAV

and

Share

Price

Total

Returns

as

of

April

30,

2024

Cumulative

Average

Annual

Inception

Date

6-Month

1-Year

5-Year

10-Year

NVG

at

Common

Share

NAV

3/25/02

16.39%

3.29%

0.79%

3.65%

NVG

at

Common

Share

Price

3/25/02

18.29%

2.89%

(0.53)%

3.76%

S&P

Municipal

Bond

Index

—

7.14%

2.35%

1.38%

2.46%

NVG

Blended

Benchmark

—

8.73%

3.84%

1.95%

3.09%

9

Holdings

Summaries

as

of

April

30,

2024

This

data

relates

to

the

securities

held

in

the

Fund’s

portfolio

of

investments

as

of

the

end

of

the

reporting

period.

It

should

not

be

construed

as

a

measure

of

performance

for

the

Fund

itself.

Holdings

are

subject

to

change.

The

ratings

disclosed

are

the

lowest

rating

given

by

one

of

the

following

national

rating

agencies:

Standard

&

Poor’s

Group,

Moody’s

Investors

Service,

Inc.

or

Fitch,

Inc.

Credit

ratings

are

subject

to

change.

AAA,

AA,

A

and

BBB

are

investment

grade

ratings;

BB,

B,

CCC,

CC,

C

and

D

are

below-investment

grade

ratings.

Holdings

designated

N/R

are

not

rated

by

these

national

rating

agencies.

Fund

Allocation

(%

of

net

assets)

Municipal

Bonds

163

.8‌

%

Common

Stocks

1

.6‌

%

Short-Term

Municipal

Bonds

1

.8‌

%

Other

Assets

&

Liabilities,

Net

1.1%

Floating

Rate

Obligations

(7.2)%

MFP

Shares,

Net

(

18

.0‌

)

%

VRDP

Shares,

Net

(

43

.1‌

)

%

Net

Assets

100‌

%

Portfolio

Credit

Quality

(%

of

total

investment

exposure)

U.S.

Guaranteed

6.2%

AAA

7.0%

AA

19.4%

A

22.3%

BBB

16.5%

BB

or

Lower

10.4%

N/R

(not

rated)

17.2%

N/A

(not

applicable)

1.0%

Total

100‌

%

Portfolio

Composition

(%

of

total

investments)

Tax

Obligation/Limited

19.0%

Health

Care

13.9%

Tax

Obligation/General

12.0%

Utilities

10.2%

Transportation

9.8%

Education

and

Civic

Organizations

9.0%

Housing/Single

Family

7.2%

Other

17.9%

Common

Stocks

1.0%

Total

100%

States

and

Territories

1

(%

of

total

municipal

bonds)

Illinois

14.0%

Texas

8.3%

California

7.2%

New

York

6.0%

Colorado

5.4%

Ohio

5.4%

Puerto

Rico

4.4%

New

Jersey

3.5%

Pennsylvania

2.8%

Connecticut

2.8%

Wisconsin

2.8%

Georgia

2.5%

Florida

2.4%

District

of

Columbia

2.2%

Michigan

2.0%

Indiana

1.8%

Massachusetts

1.7%

South

Carolina

1.6%

North

Dakota

1.4%

Rhode

Island

1.4%

Arizona

1.3%

Alabama

1.3%

Kentucky

1.2%

Minnesota

1.2%

Idaho

1.2%

Other

14.2%

Total

100%

1

See

the

Portfolio

of

Investments

for

the

remaining

states

comprising

"Other"

and

not

listed

in

the

table

above.

10

Nuveen

Municipal

Credit

Income

Fund

Performance

Overview

and

Holding

Summaries

April

30,

2024

NZF

Refer

to

the

Glossary

of

Terms

Used

in

this

Report

for

further

definition

of

the

terms

used

within

this

section.

Fund

Performance*

*

For

purposes

of

Fund

performance,

relative

results

are

measured

against

the

NZF

Blended

Benchmark.

The

Fund’s

Blended

Benchmark

consists

of:

1)

60%

S&P

Municipal

Bond

Investment

Grade

Index

and

2)

40%

S&P

Municipal

Bond

High

Yield

Index.

The

Fund’s

performance

was

measured

against

the

S&P

Municipal

Bond

Index

through

April

10,

2016.

Performance

data

shown

represents

past

performance

and

does

not

predict

or

guarantee

future

results.

Current

per-

formance

may

be

higher

or

lower

than

the

data

shown.

Returns

do

not

reflect

the

deduction

of

taxes

that

shareholders

may

have

to

pay

on

Fund

distributions

or

upon

the

sale

of

Fund

shares.

Returns

at

NAV

are

net

of

Fund

expenses,

and

assume

reinvestment

of

distributions.

Comparative

index

return

information

is

provided

for

the

Fund’s

shares

at

NAV

only.

Indexes

are

not

available

for

direct

investment.

Daily

Common

Share

NAV

and

Share

Price

Total

Returns

as

of

April

30,

2024

Cumulative

Average

Annual

Inception

Date

6-Month

1-Year

5-Year

10-Year

NZF

at

Common

Share

NAV

9/25/01

15.88%

4.02%

1.20%

3.91%

NZF

at

Common

Share

Price

9/25/01

18.91%

5.33%

(0.55)%

4.07%

S&P

Municipal

Bond

Index

—

7.14%

2.35%

1.38%

2.46%

NZF

Blended

Benchmark

—

8.73%

3.84%

1.95%

3.09%

11

Holdings

Summaries

as

of

April

30,

2024

This

data

relates

to

the

securities

held

in

the

Fund’s

portfolio

of

investments

as

of

the

end

of

the

reporting

period.

It

should

not

be

construed

as

a

measure

of

performance

for

the

Fund

itself.

Holdings

are

subject

to

change.

The

ratings

disclosed

are

the

lowest

rating

given

by

one

of

the

following

national

rating

agencies:

Standard

&

Poor’s

Group,

Moody’s

Investors

Service,

Inc.

or

Fitch,

Inc.

Credit

ratings

are

subject

to

change.

AAA,

AA,

A

and

BBB

are

investment

grade

ratings;

BB,

B,

CCC,

CC,

C

and

D

are

below-investment

grade

ratings.

Holdings

designated

N/R

are

not

rated

by

these

national

rating

agencies.

Fund

Allocation

(%

of

net

assets)

Municipal

Bonds

158

.5‌

%

Common

Stocks

3

.7‌

%

Other

Assets

&

Liabilities,

Net

2.4%

Floating

Rate

Obligations

(14.5)%

MFP

Shares,

Net

(

24

.4‌

)

%

VRDP

Shares,

Net

(

25

.7‌

)

%

Net

Assets

100‌

%

Portfolio

Credit

Quality

(%

of

total

investment

exposure)

U.S.

Guaranteed

3.1%

AAA

1.1%

AA

13.1%

A

32.0%

BBB

22.4%

BB

or

Lower

13.4%

N/R

(not

rated)

14.9%

Total

100‌

%

Portfolio

Composition

(%

of

total

investments)

Health

Care

23.2%

Transportation

21.9%

Tax

Obligation/Limited

20.3%

Tax

Obligation/General

11.5%

Utilities

7.8%

U.S.

Guaranteed

3.1%

Industrials

3.1%

Other

6.8%

Common

Stocks

2.3%

Total

100%

States

and

Territories

1

(%

of

total

municipal

bonds)

Illinois

14.2%

California

13.1%

New

York

10.9%

Texas

6.9%

Ohio

5.8%

Colorado

5.1%

Florida

4.9%

New

Jersey

4.9%

Puerto

Rico

4.5%

Pennsylvania

4.5%

Virginia

2.6%

South

Carolina

2.1%

Washington

2.1%

Georgia

1.6%

Oklahoma

1.5%

Wisconsin

1.4%

North

Dakota

1.3%

Minnesota

1.2%

Louisiana

1.2%

Michigan

1.0%

Other

9.2%

Total

100%

1

See

the

Portfolio

of

Investments

for

the

remaining

states

comprising

"Other"

and

not

listed

in

the

table

above.

12

Nuveen

Municipal

High

Income

Opportunity

Fund

Performance

Overview

and

Holding

Summaries

as

of

April

30,

2024

NMZ

Refer

to

the

Glossary

of

Terms

Used

in

this

Report

for

further

definition

of

the

terms

used

within

this

section.

Fund

Performance*

*

For

purposes

of

Fund

performance,

relative

results

are

measured

against

the

S&P

Municipal

Yield

Index.

Performance

data

shown

represents

past

performance

and

does

not

predict

or

guarantee

future

results.

Current

per-

formance

may

be

higher

or

lower

than

the

data

shown.

Returns

do

not

reflect

the

deduction

of

taxes

that

shareholders

may

have

to

pay

on

Fund

distributions

or

upon

the

sale

of

Fund

shares.

Returns

at

NAV

are

net

of

Fund

expenses,

and

assume

reinvestment

of

distributions.

Comparative

index

return

information

is

provided

for

the

Fund’s

shares

at

NAV

only.

Indexes

are

not

available

for

direct

investment.

Daily

Common

Share

NAV

and

Share

Price

Total

Returns

as

of

April

30,

2024

Cumulative

Average

Annual

Inception

Date

6-Month

1-Year

5-Year

10-Year

NMZ

at

Common

Share

NAV

11/19/03

18.83%

3.57%

1.13%

4.08%

NMZ

at

Common

Share

Price

11/19/03

26.18%

0.50%

(0.13)%

3.59%

S&P

Municipal

Yield

Index

—

11.60%

5.83%

2.63%

4.23%

13

Holdings

Summaries

as

of

April

30,

2024

This

data

relates

to

the

securities

held

in

the

Fund’s

portfolio

of

investments

as

of

the

end

of

the

reporting

period.

It

should

not

be

construed

as

a

measure

of

performance

for

the

Fund

itself.

Holdings

are

subject

to

change.

The

ratings

disclosed

are

the

lowest

rating

given

by

one

of

the

following

national

rating

agencies:

Standard

&

Poor’s

Group,

Moody’s

Investors

Service,

Inc.

or

Fitch,

Inc.

Credit

ratings

are

subject

to

change.

AAA,

AA,

A

and

BBB

are

investment

grade

ratings;

BB,

B,

CCC,

CC,

C

and

D

are

below-investment

grade

ratings.

Holdings

designated

N/R

are

not

rated

by

these

national

rating

agencies.

Fund

Allocation

(%

of

net

assets)

Municipal

Bonds

154

.2‌

%

Common

Stocks

3

.9‌

%

Corporate

Bonds

0

.0‌

%

Variable

Rate

Senior

Loan

Interests

0

.0‌

%

Short-Term

Municipal

Bonds

1

.3‌

%

Other

Assets

&

Liabilities,

Net

5.3%

Floating

Rate

Obligations

(35.4)%

AMTP

Shares,

Net

(

29

.3‌

)

%

Net

Assets

100‌

%

Portfolio

Credit

Quality

(%

of

total

investment

exposure)

U.S.

Guaranteed

0.7%

AAA

1.2%

AA

8.2%

A

18.6%

BBB

12.8%

BB

or

Lower

8.4%

N/R

(not

rated)

47.6%

N/A

(not

applicable)

2.5%

Total

100‌

%

Portfolio

Composition

(%

of

total

investments)

Tax

Obligation/Limited

29.6%

Transportation

18.0%

Health

Care

11.1%

Education

and

Civic

Organizations

10.6%

Tax

Obligation/General

7.2%

Housing/Multifamily

5.4%

Industrials

4.6%

Other

11.0%

Common

Stocks

2.5%

Corporate

Bonds

0.0%

Variable

Rate

Senior

Loan

Interests

0.0%

Total

100%

States

and

Territories

1

(%

of

total

municipal

bonds)

Florida

11.7%

Illinois

11.5%

Colorado

9.3%

California

8.7%

New

York

8.0%

Puerto

Rico

6.3%

Wisconsin

5.6%

Texas

4.3%

Missouri

2.7%

Ohio

2.7%

New

Jersey

2.6%

Arizona

2.5%

Virginia

2.4%

Michigan

2.0%

Alabama

1.9%

Kentucky

1.7%

District

of

Columbia

1.7%

Washington

1.3%

South

Carolina

1.2%

Iowa

1.2%

Indiana

1.1%

Oklahoma

1.1%

Pennsylvania

1.1%

Nebraska

0.7%

Louisiana

0.7%

Other

6.0%

Total

100%

1

See

the

Portfolio

of

Investments

for

the

remaining

states

comprising

"Other"

and

not

listed

in

the

table

above.

14

Nuveen

Municipal

Credit

Opportunities

Fund

Performance

Overview

and

Holding

Summaries

as

of

April

30,

2024

NMCO

Refer

to

the

Glossary

of

Terms

Used

in

this

Report

for

further

definition

of

the

terms

used

within

this

section.

Fund

Performance*

*

For

purposes

of

Fund

performance,

relative

results

are

measured

against

the

S&P

Municipal

Yield

Index.

Performance

data

shown

represents

past

performance

and

does

not

predict

or

guarantee

future

results.

Current

per-

formance

may

be

higher

or

lower

than

the

data

shown.

Returns

do

not

reflect

the

deduction

of

taxes

that

shareholders

may

have

to

pay

on

Fund

distributions

or

upon

the

sale

of

Fund

shares.

Returns

at

NAV

are

net

of

Fund

expenses,

and

assume

reinvestment

of

distributions.

Comparative

index

return

information

is

provided

for

the

Fund’s

shares

at

NAV

only.

Indexes

are

not

available

for

direct

investment.

Daily

Common

Share

NAV

and

Share

Price

Total

Returns

as

of

April

30,

2024

Cumulative

Average

Annual

Inception

Date

6-Month

1-Year

Since

Inception

NMCO

at

Common

Share

NAV

9/16/19

17.24%

1.33%

(0.62)%

NMCO

at

Common

Share

Price

9/16/19

20.22%

(3.31)%

(3.07)%

S&P

Municipal

Yield

Index

—

11.60%

5.83%

1.90%

15

Holdings

Summaries

as

of

April

30,

2024

This

data

relates

to

the

securities

held

in

the

Fund’s

portfolio

of

investments

as

of

the

end

of

the

reporting

period.

It

should

not

be

construed

as

a

measure

of

performance

for

the

Fund

itself.

Holdings

are

subject

to

change.

The

ratings

disclosed

are

the

lowest

rating

given

by

one

of

the

following

national

rating

agencies:

Standard

&

Poor’s

Group,

Moody’s

Investors

Service,

Inc.

or

Fitch,

Inc.

Credit

ratings

are

subject

to

change.

AAA,

AA,

A

and

BBB

are

investment

grade

ratings;

BB,

B,

CCC,

CC,

C

and

D

are

below-investment

grade

ratings.

Holdings

designated

N/R

are

not

rated

by

these

national

rating

agencies.

Fund

Allocation

(%

of

net

assets)

Municipal

Bonds

146

.6‌

%

Common

Stocks

9

.0‌

%

Variable

Rate

Senior

Loan

Interests

0

.0‌

%

Other

Assets

&

Liabilities,

Net

14.3%

Floating

Rate

Obligations

(4.2)%

MFP

Shares,

Net

(

65

.7‌

)

%

Net

Assets

100‌

%

Portfolio

Credit

Quality

(%

of

total

investment

exposure)

U.S.

Guaranteed

0.2%

AA

2.2%

A

8.5%

BBB

10.5%

BB

or

Lower

16.2%

N/R

(not

rated)

56.6%

N/A

(not

applicable)

5.8%

Total

100‌

%

Portfolio

Composition

(%

of

total

investments)

Tax

Obligation/Limited

26.2%

Education

and

Civic

Organizations

15.0%

Transportation

11.8%

Consumer

Staples

7.4%

Long-Term

Care

7.1%

Tax

Obligation/General

6.8%

Industrials

6.3%

Health

Care

5.5%

Other

8.1%

Common

Stocks

5.8%

Variable

Rate

Senior

Loan

Interests

0.0%

Total

100%

States

and

Territories

1

(%

of

total

municipal

bonds)

Florida

10.8%

Illinois

10.1%

Colorado

10.0%

Wisconsin

9.0%

New

York

7.3%

Ohio

5.1%

California

4.6%

Puerto

Rico

4.5%

Texas

3.5%

Alabama

3.2%

Georgia

2.5%

Pennsylvania

2.4%

District

of

Columbia

2.4%

New

Jersey

2.4%

Arizona

2.2%

Virgin

Islands

2.0%

Utah

1.8%

Virginia

1.6%

Louisiana

1.5%

Arkansas

1.4%

Idaho

1.0%

Kansas

1.0%

Alaska

0.8%

Tennessee

0.8%

Missouri

0.8%

Other

7.3%

Total

100%

1

See

the

Portfolio

of

Investments

for

the

remaining

states

comprising

"Other"

and

not

listed

in

the

table

above.

16

Nuveen

Dynamic

Municipal

Opportunities

Fund

Performance

Overview

and

Holding

Summaries

as

of

April

30,

2024

NDMO

Refer

to

the

Glossary

of

Terms

Used

in

this

Report

for

further

definition

of

the

terms

used

within

this

section.

Fund

Performance*

*

For

purposes

of

Fund

performance,

relative

results

are

measured

against

the

S&P

Municipal

Bond

Index.

Performance

data

shown

represents

past

performance

and

does

not

predict

or

guarantee

future

results.

Current

per-

formance

may

be

higher

or

lower

than

the

data

shown.

Returns

do

not

reflect

the

deduction

of

taxes

that

shareholders

may

have

to

pay

on

Fund

distributions

or

upon

the

sale

of

Fund

shares.

Returns

at

NAV

are

net

of

Fund

expenses,

and

assume

reinvestment

of

distributions.

Comparative

index

return

information

is

provided

for

the

Fund’s

shares

at

NAV

only.

Indexes

are

not

available

for

direct

investment.

Daily

Common

Share

NAV

and

Share

Price

Total

Returns

as

of

April

30,

2024

Cumulative

Average

Annual

Inception

Date

6-Month

1-Year

Since

Inception

NDMO

at

Common

Share

NAV

8/26/20

14.93%

5.77%

(2.12)%

NDMO

at

Common

Share

Price

8/26/20

21.33%

7.98%

(2.44)%

S&P

Municipal

Yield

Index

—

11.60%

5.83%

1.48%

S&P

Municipal

Bond

Index

—

7.14%

2.35%

(0.09)%

17

Holdings

Summaries

as

of

April

30,

2024

This

data

relates

to

the

securities

held

in

the

Fund’s

portfolio

of

investments

as

of

the

end

of

the

reporting

period.

It

should

not

be

construed

as

a

measure

of

performance

for

the

Fund

itself.

Holdings

are

subject

to

change.

The

ratings

disclosed

are

the

lowest

rating

given

by

one

of

the

following

national

rating

agencies:

Standard

&

Poor’s

Group,

Moody’s

Investors

Service,

Inc.

or

Fitch,

Inc.

Credit

ratings

are

subject

to

change.

AAA,

AA,

A

and

BBB

are

investment

grade

ratings;

BB,

B,

CCC,

CC,

C

and

D

are

below-investment

grade

ratings.

Holdings

designated

N/R

are

not

rated

by

these

national

rating

agencies.

Fund

Allocation

(%

of

net

assets)

Municipal

Bonds

123

.8‌

%

U.S.

Government

and

Agency

Obligations

4

.5‌

%

Corporate

Bonds

1

.9‌

%

Common

Stocks

0

.1‌

%

Variable

Rate

Senior

Loan

Interests

0

.0‌

%

Short-Term

Municipal

Bonds

0

.8‌

%

Other

Assets

&

Liabilities,

Net

8.4%

Floating

Rate

Obligations

(2.6)%

MFP

Shares,

Net

(

36

.9‌

)

%

Net

Assets

100‌

%

Portfolio

Credit

Quality

(%

of

total

investment

exposure)

AAA

1.0%

AA

20.6%

A

18.5%

BBB

7.7%

BB

or

Lower

12.5%

N/R

(not

rated)

39.7%

Total

100‌

%

Portfolio

Composition

(%

of

total

investments)

Tax

Obligation/Limited

25.8%

Transportation

16.6%

Utilities

12.8%

Education

and

Civic

Organizations

12.2%

Tax

Obligation/General

7.7%

Health

Care

7.2%

Industrials

5.2%

Other

7.5%

U.S.

Government

and

Agency

Obligations

3.5%

Corporate

Bonds

1.4%

Common

Stocks

0.1%

Variable

Rate

Senior

Loan

Interests

0.0%

Total

100%

States

and

Territories

1

(%

of

total

municipal

bonds)

New

York

16.1%

Colorado

13.9%

Florida

9.1%

Texas

6.4%

California

6.1%

Arizona

5.3%

Alabama

5.1%

Illinois

4.4%

Puerto

Rico

4.0%

Wisconsin

3.8%

Pennsylvania

3.2%

Indiana

2.1%

Nebraska

1.7%

Tennessee

1.5%

District

of

Columbia

1.4%

Arkansas

1.4%

Michigan

1.3%

Washington

1.1%

Minnesota

1.0%

Georgia

0.9%

Ohio

0.8%

Missouri

0.8%

New

Mexico

0.8%

Virginia

0.8%

Louisiana

0.7%

Other

6.3%

Total

100%

1

See

the

Portfolio

of

Investments

for

the

remaining

states

comprising

"Other"

and

not

listed

in

the

table

above.

18

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

Portfolio

of

Investments

April

30,

2024

(Unaudited)

NVG

vb

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

LONG-TERM

INVESTMENTS

-

165.4% 

(98.9%

of

Total

Investments)

X

–

MUNICIPAL

BONDS

-

163.8%

(97.9%

of

Total

Investments)

X

4,690,795,609

Alabama

-

2.2%

(1.3%

of

Total

Investments)

$

3,645

(c)

Alabama

Private

Colleges

and

University

Facilities

Authority,

Limited

Obligation

Bonds,

University

of

Mobile

Project,

Series

2015A,

6.000%,

9/01/45

9/25

at

100.00

$

3,662,646

2,060

Birmingham-Jefferson

Civic

Center

Authority,

Alabama,

Special

Tax

Bonds,

Series

2018A,

4.000%,

7/01/43

7/28

at

100.00

1,963,707

7,500

Black

Belt

Energy

Gas

District,

Alabama,

Gas

Project

Revenue

Bonds,

Prepay

Morgan

Stanley

Series

2022C-1,

5.250%,

2/01/53,

(Mandatory

Put

6/01/29)

3/29

at

100.15

7,828,882

2,285

Jefferson

County,

Alabama,

Sewer

Revenue

Warrants,

Series

2024,

5.250%,

10/01/49

10/33

at

100.00

2,407,714

30,730

Lower

Alabama

Gas

District,

Alabama,

Gas

Project

Revenue

Bonds,

Series

2016A,

5.000%,

9/01/46

No

Opt.

Call

31,658,307

8,100

Mobile

Spring

Hill

College

Educational

Building

Authority,

Alabama,

Revenue

Bonds,

Spring

Hill

College

Project,

Series

2015,

5.875%,

4/15/45

4/25

at

100.00

6,029,027

The

Improvement

District

of

the

City

of

Mobile

-

McGowin

Park

Project,

Alabama,

Sales

Tax

Revenue

Bonds,

Series

2016A

:

1,000

5.250%,

8/01/30

8/26

at

100.00

957,146

1,300

5.500%,

8/01/35

8/26

at

100.00

1,234,189

Tuscaloosa

County

Industrial

Development

Authority,

Alabama,

Gulf

Opportunity

Zone

Bonds,

Hunt

Refining

Project,

Refunding

Series

2019A

:

2,914

(c)

4.500%,

5/01/32

5/24

at

100.00

2,911,808

4,220

(c)

5.250%,

5/01/44

5/29

at

100.00

4,229,173

Total

Alabama

62,882,599

Alaska

-

0.6%

(0.3%

of

Total

Investments)

2,000

Alaska

Housing

Finance

Corporation,

Mortgage

Revenue

Bonds,

General

Series

2024A-II,

4.700%,

12/01/49

6/33

at

100.00

2,001,508

Northern

Tobacco

Securitization

Corporation,

Alaska,

Tobacco

Settlement

Asset-Backed

Bonds,

Senior

Series

2021A

Class

1

:

4,490

4.000%,

6/01/41

6/31

at

100.00

4,354,531

8,100

4.000%,

6/01/50

6/31

at

100.00

7,320,256

915

Northern

Tobacco

Securitization

Corporation,

Alaska,

Tobacco

Settlement

Asset-Backed

Bonds,

Series

2021B-1

Class

2,

4.000%,

6/01/50

6/31

at

100.00

916,656

14,045

Northern

Tobacco

Securitization

Corporation,

Alaska,

Tobacco

Settlement

Asset-Backed

Bonds,

Series

2021B-2

Class

2,

0.000%,

6/01/66

6/31

at

30.73

1,722,168

Total

Alaska

16,315,119

Arizona

-

2.2%

(1.3%

of

Total

Investments)

5,000

Arizona

Board

of

Regents,

Arizona

State

University

System

Revenue

Bonds,

Green

Series

2024A,

5.000%,

7/01/50,

(WI/DD)

7/34

at

100.00

5,356,697

1,475

(c)

Arizona

Industrial

Development

Authority,

Arizona,

Education

Facility

Revenue

Bonds,

Basis

Schools,

Inc.

Projects,

Series

2017D,

5.000%,

7/01/47

7/27

at

100.00

1,386,294

6,290

(c)

Arizona

Industrial

Development

Authority,

Arizona,

Education

Revenue

Bonds,

Academies

of

Math

&

Science

Projects,

Series

2019,

5.000%,

7/01/54

7/29

at

100.00

5,794,362

3,260

(c)

Arizona

Industrial

Development

Authority,

Education

Facility

Revenue

Bonds,

Caurus

Academy

Project,

Series

2018A,

6.375%,

6/01/39

6/28

at

100.00

3,392,967

19

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Arizona

(continued)

$

3,142

(c),(d)

Cahava

Springs

Revitalization

District,

Cave

Creek,

Arizona,

Special

Assessment

Bonds,

Series

2017A,

7.000%,

7/01/41

7/27

at

100.00

$

2,419,491

1,350

(c)

Maricopa

County

Industrial

Development

Authority,

Arizona,

Education

Revenue

Bonds,

Legacy

Traditional

Schools

Projects,

Series

2021A,

4.000%,

7/01/56

7/31

at

100.00

1,019,744

Maricopa

County

Industrial

Development

Authority,

Arizona,

Education

Revenue

Bonds,

Legacy

Traditional

Schools

Projects,

Taxable

Series

2019B

:

1,730

(c)

5.000%,

7/01/49

7/29

at

100.00

1,617,214

1,975

(c)

5.000%,

7/01/54

7/29

at

100.00

1,819,374

800

Maricopa

County

Industrial

Development

Authority,

Arizona,

Education

Revenue

Bonds,

Reid

Traditional

School

Projects,

Series

2016,

5.000%,

7/01/47

7/26

at

100.00

780,243

Phoenix

Civic

Improvement

Corporation,

Arizona,

Revenue

Bonds,

Civic

Plaza

Expansion

Project,

Series

2005B

:

6,000

5.500%,

7/01/37

-

FGIC

Insured

No

Opt.

Call

7,309,148

8,755

5.500%,

7/01/39

-

FGIC

Insured

No

Opt.

Call

10,687,296

Phoenix

Industrial

Development

Authority,

Arizona,

Education

Facility

Revenue

Bonds,

Basis

Schools,

Inc.

Projects,

Series

2016A

:

620

(c)

5.000%,

7/01/35

7/25

at

100.00

621,973

1,025

(c)

5.000%,

7/01/46

7/25

at

100.00

970,924

Pima

County

Industrial

Development

Authority,

Arizona,

Education

Facility

Revenue

Bonds,

Edkey

Charter

Schools

Project,

Series

2016

:

1,130

5.250%,

7/01/36

7/26

at

100.00

1,131,616

1,850

5.375%,

7/01/46

7/26

at

100.00

1,778,952

2,135

5.500%,

7/01/51

7/26

at

100.00

2,053,171

2,920

(c)

Pima

County

Industrial

Development

Authority,

Arizona,

Education

Facility

Revenue

Bonds,

Edkey

Charter

Schools

Project,

Series

2019,

5.875%,

7/01/51

7/26

at

103.00

2,926,833

3,050

(c)

Pima

County

Industrial

Development

Authority,

Arizona,

Education

Facility

Revenue

Bonds,

San

Tan

Montessori

School

Project,

Series

2017,

6.750%,

2/01/50

2/28

at

100.00

3,123,325

Salt

Verde

Financial

Corporation,

Arizona,

Senior

Gas

Revenue

Bonds,

Citigroup

Energy

Inc

Prepay

Contract

Obligations,

Series

2007

:

6,120

5.000%,

12/01/32

No

Opt.

Call

6,439,948

2,365

5.000%,

12/01/37

No

Opt.

Call

2,515,435

Total

Arizona

63,145,007

Arkansas

-

0.6%

(0.4%

of

Total

Investments)

Arkansas

Development

Finance

Authority,

Single

Family

Mortgage

Revenue

Bonds,

Mortgage-Backed

Securities

Program,

Series

2024A

:

1,000

4.600%,

7/01/49,

(WI/DD)

7/33

at

100.00

994,498

1,000

4.650%,

1/01/54,

(WI/DD)

7/33

at

100.00

1,003,211

Arkansas

Development

Finance

Authority,

Tobacco

Settlement

Revenue

Bonds,

Arkansas

Cancer

Research

Center

Project,

Series

2006

:

2,635

0.000%,

7/01/36

-

AMBAC

Insured

No

Opt.

Call

1,576,461

20,480

0.000%,

7/01/46

-

AMBAC

Insured

No

Opt.

Call

6,743,896

8,425

Springdale,

Arkansas,

Sales

and

Use

Tax

Revenue

Bonds,

Refunding

&

Improvement

Series

2023B,

4.125%,

8/01/50

-

BAM

Insured

2/30

at

100.00

8,133,821

Total

Arkansas

18,451,887

California

-

11.7%

(7.0%

of

Total

Investments)

6,135

Alhambra

Unified

School

District,

Los

Angeles

County,

California,

General

Obligation

Bonds,

Capital

Appreciation

Series

2009B,

0.000%,

8/01/30

-

AGC

Insured

No

Opt.

Call

4,999,338

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

20

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

California

(continued)

Anaheim

Public

Financing

Authority,

California,

Lease

Revenue

Bonds,

Public

Improvement

Project,

Series

1997C

:

$

6,820

(e)

0.000%,

9/01/35

-

AGM

Insured,

(ETM)

No

Opt.

Call

$

4,668,385

5,795

0.000%,

9/01/35

-

AGM

Insured

No

Opt.

Call

3,892,239

4,100

Antelope

Valley

Healthcare

District,

California,

Revenue

Bonds,

Series

2016A,

5.000%,

3/01/41

3/26

at

100.00

3,877,235

3,875

Bakersfield

City

School

District,

Kern

County,

California,

General

Obligation

Bonds,

Election

2016

Series

2022C,

2.500%,

11/01/46

-

BAM

Insured

11/31

at

100.00

2,653,405

1,650

California

Community

Choice

Financing

Authority,

Clean

Energy

Project

Revenue

Bonds,

Green

Series

2023C,

5.250%,

1/01/54,

(Mandatory

Put

10/01/31)

10/30

at

100.65

1,722,253

2,325

(c)

California

Community

Housing

Agency,

California,

Essential

Housing

Revenue

Bonds,

Fountains

at

Emerald

Park,

Senior

Lien

Series

2021A-1,

3.000%,

8/01/56

8/31

at

100.00

1,618,403

2,000

(c)

California

Community

Housing

Agency,

California,

Essential

Housing

Revenue

Bonds,

Summit

at

Sausalito

Apartments,

Series

2021A-1,

3.000%,

2/01/57

8/32

at

100.00

1,363,541

310

California

County

Tobacco

Securitization

Agency,

Tobacco

Settlement

Asset-Backed

Bonds,

Los

Angeles

County

Securitization

Corporation,

Series

2020B-1,

5.000%,

6/01/49

6/30

at

100.00

315,185

50,460

California

County

Tobacco

Securitization

Agency,

Tobacco

Settlement

Asset-Backed

Bonds,

Los

Angeles

County

Securitization

Corporation,

Series

2020B-2,

0.000%,

6/01/55

6/30

at

26.72

9,719,832

1,500

California

County

Tobacco

Securitization

Agency,

Tobacco

Settlement

Bonds,

Gold

Country

Settlement

Funding

Corporation,

Senior

Series

2020A,

4.000%,

6/01/49

12/30

at

100.00

1,422,477

12,940

(f)

California

Educational

Facilities

Authority,

Revenue

Bonds,

Stanford

University

Series

2019V-1,

5.000%,

5/01/49,

(UB)

No

Opt.

Call

14,946,062

5,000

(f)

California

Educational

Facilities

Authority,

Revenue

Bonds,

Stanford

University

Series

2019V-1,

5.000%,

5/01/49

No

Opt.

Call

5,775,140

10,000

California

Educational

Facilities

Authority,

Revenue

Bonds,

Stanford

University

Series

2021V-2,

5.000%,

4/01/51

No

Opt.

Call

11,525,598

8,300

(f)

California

Educational

Facilities

Authority,

Revenue

Bonds,Stanford

University,

Refunding

Series

2014U-6,

5.000%,

5/01/45,

(UB)

No

Opt.

Call

9,709,068

1,000

California

Health

Facilities

Financing

Authority,

Revenue

Bonds,

Stanford

Hospitals

and

Clinics,

Series

2015A,

5.000%,

8/15/54

8/25

at

100.00

1,007,077

California

Municipal

Finance

Authority,

Charter

School

Revenue

Bonds,

Palmdale

Aerospace

Academy

Project,

Series

2016A

:

3,065

(c)

5.000%,

7/01/31

7/26

at

100.00

3,100,489

1,000

(c)

5.000%,

7/01/36

7/26

at

100.00

1,004,611

555

(c)

5.000%,

7/01/41

7/26

at

100.00

541,843

195

(c)

5.000%,

7/01/46

7/26

at

100.00

186,187

California

Municipal

Finance

Authority,

Education

Revenue

Bonds,  American

Heritage

Foundation

Project,

Series

2016A

:

260

5.000%,

6/01/36

6/26

at

100.00

262,145

435

5.000%,

6/01/46

6/26

at

100.00

416,043

3,000

(c)

California

Municipal

Finance

Authority,

Revenue

Bonds,

Simpson

University,

Series

2020A,

6.000%,

10/01/50

10/27

at

103.00

3,026,785

5,425

(c)

California

Pollution

Control

Financing

Authority,

Water

Furnishing

Revenue

Bonds,

San

Diego

County

Water

Authoriity

Desalination

Project

Pipeline,

Refunding

Series

2019,

5.000%,

11/21/45

1/29

at

100.00

5,512,544

2,050

California

Public

Finance

Authority,

Revenue

Bonds,

Henry

Mayo

Newhall

Hospital,

Series

2017,

5.000%,

10/15/47

10/26

at

100.00

1,974,899

21

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

California

(continued)

$

735

(c)

California

School

Finance

Authority,

Charter

School

Revenue

Bonds,

Downtown

College

Prep

-

Obligated

Group,

Series

2016,

5.000%,

6/01/46

6/26

at

100.00

$

696,403

715

(c)

California

School

Finance

Authority,

Charter

School

Revenue

Bonds,

Rocketship

Education

Obligated

Group,

Series

2016A,

5.000%,

6/01/36

6/25

at

100.00

717,132

570

(c)

California

School

Finance

Authority,

Charter

School

Revenue

Bonds,

Rocketship

Education

Obligated

Group,

Series

2017A,

5.125%,

6/01/47

6/26

at

100.00

556,781

80

California

State,

General

Obligation

Bonds,

Series

2002,

5.000%,

10/01/32

-

NPFG

Insured

5/24

at

100.00

80,046

5

California

State,

General

Obligation

Bonds,

Series

2004,

5.000%,

4/01/31

-

AMBAC

Insured

5/24

at

100.00

5,003

6,290

California

Statewide

Communities

Development

Authority,

California,

Revenue

Bonds,

Loma

Linda

University

Medical

Center,

Series

2014A,

5.500%,

12/01/54

12/24

at

100.00

6,309,544

63,130

(c)

California

Statewide

Communities

Development

Authority,

California,

Revenue

Bonds,

Loma

Linda

University

Medical

Center,

Series

2016A,

5.250%,

12/01/56

6/26

at

100.00

63,432,424

7,130

(c)

California

Statewide

Communities

Development

Authority,

California,

Revenue

Bonds,

Loma

Linda

University

Medical

Center,

Series

2018A,

5.500%,

12/01/58

6/28

at

100.00

7,264,424

4,000

(e)

California

Statewide

Communities

Development

Authority,

Revenue

Bonds,

Huntington

Memorial

Hospital,

Refunding

Series

2014B,

4.000%,

7/01/39,

(Pre-refunded

7/01/24)

7/24

at

100.00

4,001,396

California

Statewide

Community

Development

Authority,

Revenue

Bonds,

Daughters

of

Charity

Health

System,

Series

2005A

:

16

(d),(g)

5.750%,

7/01/30

1/22

at

100.00

16,298

47

(d),(g)

5.750%,

7/01/35

1/22

at

100.00

47,035

5,000

(e)

Clovis

Unified

School

District,

Fresno

County,

California,

General

Obligation

Bonds,

Series

2001A,

0.000%,

8/01/25

-

FGIC

Insured,

(ETM)

No

Opt.

Call

4,783,837

5,330

(c)

CMFA

Special

Finance

Agency

VII,

California,

Essential

Housing

Revenue

Bonds,

Senior

Lien

Series

2021A-1,

3.000%,

8/01/56

8/31

at

100.00

3,548,825

4,000

(c)

CMFA

Special

Finance

Agency,

California,

Essential

Housing

Revenue

Bonds,

Latitude

33,

Senior

Series

2021A-1,

3.000%,

12/01/56

12/31

at

100.00

2,759,304

3,410

Coachella

Valley

Unified

School

District,

Riverside

County,

California,

General

Obligation

Bonds,

Election

2005

Series

2010C,

0.000%,

8/01/33

-

AGM

Insured

No

Opt.

Call

2,461,774

14,375

Corona-Norco

Unified

School

District,

Riverside

County,

California,

General

Obligation

Bonds,

Capital

Appreciation,

Election

2006

Refunding

Series

2009C,

0.000%,

8/01/39

-

AGM

Insured

No

Opt.

Call

7,300,937

2,000

(c)

CSCDA

Community

Improvement

Authority,

California,

Essential

Housing

Revenue

Bonds,

777

Place-Pomona,

Senior

Lien

Series

2021A-1,

3.600%,

5/01/47

5/32

at

100.00

1,646,088

5,000

(c)

CSCDA

Community

Improvement

Authority,

California,

Essential

Housing

Revenue

Bonds,

777

Place-Pomona,

Senior

Lien

Series

2021A-2,

3.250%,

5/01/57

5/32

at

100.00

3,457,628

5,000

(c)

CSCDA

Community

Improvement

Authority,

California,

Essential

Housing

Revenue

Bonds,

Escondido

Portfolio,

Social

Senior

Lien

Series

2021A-2,

4.000%,

6/01/58

6/31

at

100.00

3,727,491

4,720

(c)

CSCDA

Community

Improvement

Authority,

California,

Essential

Housing

Revenue

Bonds,

Moda

at

Monrovia

Station,

Social

Series

2021A-1,

3.400%,

10/01/46

10/31

at

100.00

3,752,210

15,985

(c)

CSCDA

Community

Improvement

Authority,

California,

Essential

Housing

Revenue

Bonds,

Monterrey

Station

Apartments,

Senior

Lien

Series

2021A-

1,

3.125%,

7/01/56

7/32

at

100.00

10,553,022

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

22

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

California

(continued)

$

5,000

CSCDA

Community

Improvement

Authority,

California,

Essential

Housing

Revenue

Bonds,

Pasadena

Portfolio

Social

Bond,

Series

2021A-2,

3.000%,

12/01/56

12/31

at

100.00

$

3,449,130

2,475

(c)

CSCDA

Community

Improvement

Authority,

California,

Essential

Housing

Revenue

Bonds,

Vineyard

Gardens

Apartments,

Senior

Lien

Series

2021A,

3.250%,

10/01/58

4/32

at

100.00

1,670,378

12,500

CSCDA

Community

Improvement

Authority,

California,

Essential

Housing

Revenue

Bonds,

Wood

Creek

Apartments,

Mezzanine

Lien

Series

2021A-

2,

4.000%,

12/01/58

6/32

at

100.00

9,260,530

El

Rancho

Unified

School

District,

Los

Angeles

County,

California,

General

Obligation

Bonds,

Election

2010

Series

2011A

:

2,615

6.900%,

8/01/31

-

AGM

Insured

8/28

at

100.00

3,017,996

3,600

7.050%,

8/01/34

-

AGM

Insured

8/28

at

100.00

4,172,241

Foothill/Eastern

Transportation

Corridor

Agency,

California,

Toll

Road

Revenue

Bonds,

Refunding

Senior

Lien

Series

2015A

:

3,960

0.000%,

1/15/34

-

AGM

Insured

No

Opt.

Call

2,798,563

5,000

0.000%,

1/15/35

-

AGM

Insured

No

Opt.

Call

3,396,172

910

Foothill/Eastern

Transportation

Corridor

Agency,

California,

Toll

Road

Revenue

Bonds,

Refunding

Series

2013A,

6.850%,

1/15/42

1/31

at

100.00

1,078,608

4,595

Foothill/Eastern

Transportation

Corridor

Agency,

California,

Toll

Road

Revenue

Bonds,

Refunding

Term

Rate

Sub-Series

2013B-1,

3.500%,

1/15/53

7/29

at

100.00

3,785,913

7,860

Golden

State

Tobacco

Securitization

Corporation,

California,

Tobacco

Settlement

Asset-Backed

Bonds,

Capital

Appreciation

Series

2021B-2,

0.000%,

6/01/66

12/31

at

27.75

798,127

1,825

Golden

State

Tobacco

Securitization

Corporation,

California,

Tobacco

Settlement

Asset-Backed

Revenue

Bonds,

Series

2022A-1,

5.000%,

6/01/51

12/31

at

100.00

1,887,734

Kern

Community

College

District,

California,

General

Obligation

Bonds,

Safety,

Repair

&

Improvement,

Election

2002

Series

2006

:

5,600

0.000%,

11/01/24

-

AGM

Insured

No

Opt.

Call

5,500,611

5,795

0.000%,

11/01/25

-

AGM

Insured

No

Opt.

Call

5,496,143

1,075

Lincoln

Public

Financing

Authority,

Placer

County,

California,

Twelve

Bridges

Limited

Obligation

Revenue

Bonds,

Refunding

Series

2011A,

4.375%,

9/02/25

-

AGM

Insured

5/24

at

100.00

1,075,798

7,575

(h)

Mount

San

Antonio

Community

College

District,

Los

Angeles

County,

California,

General

Obligation

Bonds,

Election

of

2008,

Series

2013A,

0.000%,

8/01/43

8/35

at

100.00

7,258,268

3,310

M-S-R

Energy

Authority,

California,

Gas

Revenue

Bonds,

Citigroup

Prepay

Contracts,

Series

2009B,

6.500%,

11/01/39

No

Opt.

Call

4,132,627

Oceanside

Unified

School

District,

San

Diego

County,

California,

General

Obligation

Bonds,

Capital

Appreciation,

2008

Election

Series

2009A

:

3,960

0.000%,

8/01/26

-

AGC

Insured

No

Opt.

Call

3,655,997

605

(e)

0.000%,

8/01/26

-

AGC

Insured,

(ETM)

No

Opt.

Call

561,212

540

(e)

0.000%,

8/01/26

-

AGC

Insured,

(ETM)

No

Opt.

Call

500,917

530

(e)

0.000%,

8/01/26

-

AGC

Insured,

(ETM)

No

Opt.

Call

491,641

270

(e)

0.000%,

8/01/26

-

AGC

Insured,

(ETM)

No

Opt.

Call

250,458

1,715

0.000%,

8/01/28

-

AGC

Insured

No

Opt.

Call

1,481,176

225

(e)

0.000%,

8/01/28

-

AGC

Insured,

(ETM)

No

Opt.

Call

197,099

170

(e)

0.000%,

8/01/28

-

AGC

Insured,

(ETM)

No

Opt.

Call

148,920

110

(e)

0.000%,

8/01/28

-

AGC

Insured,

(ETM)

No

Opt.

Call

96,360

3,905

Orange

County,

California,

Special

Tax

Bonds,

Community

Facilities

District

2015-1

Esencia

Village,

Series

2015A,

4.250%,

8/15/38

8/25

at

100.00

3,874,532

23

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

California

(continued)

Palo

Alto,

California,

Certificates

of

Participation,

Public

Safety

Building,

Series

2021

:

$

2,560

2.000%,

11/01/42

11/30

at

100.00

$

1,686,979

1,940

2.125%,

11/01/44

11/30

at

100.00

1,257,683

3,700

Palomar

Pomerado

Health,

California,

General

Obligation

Bonds,

Capital

Appreciation,

Election

of

2004,

Series

2007A,

0.000%,

8/01/25

-

NPFG

Insured

No

Opt.

Call

3,504,903

7,935

Palomar

Pomerado

Health,

California,

General

Obligation

Bonds,

Series

2009A,

7.000%,

8/01/38

-

AGC

Insured

8/29

at

100.00

9,022,842

9,145

Pittsburg

Redevelopment

Agency,

California,

Tax

Allocation

Bonds,

Los

Medanos

Community

Development

Project,

Series

1999,

0.000%,

8/01/30

-

AMBAC

Insured

No

Opt.

Call

7,302,658

San

Clemente,

California,

Special

Tax

Revenue

Bonds,

Community

Facilities

District

2006-1

Marblehead

Coastal,

Series

2015

:

480

5.000%,

9/01/40

9/25

at

100.00

484,648

905

5.000%,

9/01/46

9/25

at

100.00

911,446

San

Joaquin

Hills

Transportation

Corridor

Agency,

Orange

County,

California,

Toll

Road

Revenue

Bonds,

Refunding

Senior

Lien

Series

2014A

:

2,680

(e)

5.000%,

1/15/44,

(Pre-refunded

1/15/25)

1/25

at

100.00

2,709,642

8,275

(e)

5.000%,

1/15/50,

(Pre-refunded

1/15/25)

1/25

at

100.00

8,366,525

3,400

San

Mateo

County

Community

College

District,

California,

General

Obligation

Bonds,

Series

2006C,

0.000%,

9/01/30

-

NPFG

Insured

No

Opt.

Call

2,761,052

4,340

San

Ysidro

School

District,

San

Diego

County,

California,

General

Obligation

Bonds,

1997

Election

Series

2012G,

0.000%,

8/01/34

-

AGM

Insured

No

Opt.

Call

2,942,800

Santa

Ana

Financing

Authority,

California,

Lease

Revenue

Bonds,

Police

Administration

and

Housing

Facility,

Series

1994A

:

1,265

(e)

6.250%,

7/01/24,

(ETM)

No

Opt.

Call

1,269,640

1,265

6.250%,

7/01/24

No

Opt.

Call

1,269,576

605

(c)

Temecula

Public

Financing

Authority,

California,

Special

Tax

Bonds,

Community

Facilities

District

16-01,

Series

2017,

6.250%,

9/01/47

9/27

at

100.00

628,943

Total

California

336,514,874

Colorado

-

9.0%

(5.4%

of

Total

Investments)

4,300

Aerotropolis

Regional

Transportation

Authority,

Colorado,

Special

Revenue

Bonds,

Series

2021,

4.375%,

12/01/52

12/26

at

103.00

3,524,676

850

Aviation

Station

North

Metropolitan

District

2,

Denver

County,

Colorado,

Limited

Tax

General

Obligation

Bonds,

Refunding

&

Improvement

Series

2019A,

5.000%,

12/01/39

9/24

at

103.00

805,734

Base

Village

Metropolitan

District

2,

Colorado,

General

Obligation

Bonds,

Refunding

Series

2016A

:

806

5.500%,

12/01/36

5/24

at

101.00

807,992

1,175

5.750%,

12/01/46

5/24

at

101.00

1,171,274

700

Brighton

Crossing

Metropolitan

District

4,

Colorado,

General

Obligation

Bonds,

Limited

Tax

Convertible

to

Unlimited

Tax,

Series

2017A,

5.000%,

12/01/47

5/24

at

102.00

656,203

3,410

Canyons

Metropolitan

District

5,

Douglas

County,

Colorado,

Limited

Tax

General

Obligation

and

Special

Revenue

Bonds,

Refunding

&

Improvement

Series

2017A,

6.125%,

12/01/47

5/24

at

102.00

3,367,784

1,690

Canyons

Metropolitan

District

6,

Douglas

County,

Colorado,

Limited

Tax

General

Obligation

and

Special

Revenue

Bonds,

Refunding

&

Improvement

Series

2017A,

6.125%,

12/01/47

5/24

at

102.00

1,654,773

Centerra

Metropolitan

District

1,

Loveland,

Colorado,

Special

Revenue

Bonds,

Refunding

&

Improvement

Series

2017

:

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

24

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Colorado

(continued)

$

1,140

(c)

5.000%,

12/01/37

5/24

at

102.00

$

1,094,406

5,465

(c)

5.000%,

12/01/47

5/24

at

102.00

4,909,738

4,475

Centerra

Metropolitan

District

1,

Loveland,

Colorado,

Special

Revenue

Bonds,

Refunding

&

Improvement

Series

2020A,

5.000%,

12/01/51

12/25

at

103.00

3,982,701

930

Colorado

Educational

and

Cultural

Facilities

Authority,

Charter

School

Revenue

Bonds,

Flagstaff

Academy

Project,

Refunding

Series

2016,

3.625%,

8/01/46

8/26

at

100.00

733,175

1,165

Colorado

Educational

and

Cultural

Facilities

Authority,

Charter

School

Revenue

Bonds,

The

Classical

Academy

Project,

Refunding

Series

2015A,

5.000%,

12/01/38

12/24

at

100.00

1,168,881

3,675

Colorado

Educational

and

Cultural

Facilities

Authority,

Charter

School

Revenue

Bonds,

Vanguard

School

Project,

Refunding

&

Improvement

Series

2016,

3.750%,

6/15/47

6/26

at

100.00

3,038,915

1,750

Colorado

Educational

and

Cultural

Facilities

Authority,

Charter

School

Revenue

Bonds,

Weld

County

School

District

6

-

Frontier

Academy,

Refunding

&

Improvement

Series

2016,

3.250%,

6/01/46

6/26

at

100.00

1,328,162

Colorado

Health

Facilities

Authority,

Colorado,

Health

Facilities

Revenue

Bonds,

The

Evangelical

Lutheran

Good

Samaritan

Society

Project,

Refunding

Series

2017

:

2,460

(e)

5.000%,

6/01/42,

(Pre-refunded

6/01/27)

6/27

at

100.00

2,588,596

23,470

(e)

5.000%,

6/01/47,

(Pre-refunded

6/01/27)

6/27

at

100.00

24,696,887

2,900

Colorado

Health

Facilities

Authority,

Colorado,

Revenue

Bonds,

CommonSpirit

Health,

Series

2019A-2,

4.000%,

8/01/49

8/29

at

100.00

2,637,761

4,900

Colorado

Health

Facilities

Authority,

Colorado,

Revenue

Bonds,

Covenant

Living

Communities

&

Services,

Series

2020A,

4.000%,

12/01/50

12/27

at

103.00

3,954,569

Colorado

Health

Facilities

Authority,

Colorado,

Revenue

Bonds,

Evangelical

Lutheran

Good

Samaritan

Society

Project,

Series

2013A

:

1,410

(e)

5.000%,

6/01/32,

(Pre-refunded

6/01/25)

6/25

at

100.00

1,429,102

2,000

(e)

5.000%,

6/01/33,

(Pre-refunded

6/01/25)

6/25

at

100.00

2,027,094

5,870

(e)

5.000%,

6/01/40,

(Pre-refunded

6/01/25)

6/25

at

100.00

5,949,522

6,920

(e)

5.000%,

6/01/45,

(Pre-refunded

6/01/25)

6/25

at

100.00

7,013,747

2,035

Colorado

Health

Facilities

Authority,

Colorado,

Revenue

Bonds,

Frasier

Meadows

Project,

Refunding

&

Improvement

Series

2017A,

5.250%,

5/15/47

5/27

at

100.00

2,005,538

13,610

Colorado

Housing

and

Finance

Authority,

Multifamily

Project

Bonds,

Class

I

Series

2020B,

2.350%,

10/01/43

10/29

at

100.00

9,345,089

4,105

Colorado

International

Center

Metropolitan

District

14,

Denver,

Colorado,

Limited

Tax

General

Obligation

Bonds,

Refunding

&

Improvement

Series

2018,

5.875%,

12/01/46

5/24

at

103.00

4,039,320

600

Copperleaf

Metropolitan

District

4,

Arapahoe

County,

Colorado,

Limited

Tax

General

Obligation

Bonds,

Convertible

to

Unlimited

Tax

Series

2020A,

5.000%,

12/01/49

3/25

at

103.00

543,098

1,480

Cornerstar

Metropolitan

District,

Arapahoe

County,

Colorado,

General

Obligation

Bonds,

Limited

Tax

Convertible

to

Unlimited

Tax,

Refunding

Series

2017A,

5.250%,

12/01/47

5/24

at

102.00

1,413,451

1,255

Cornerstar

Metropolitan

District,

Arapahoe

County,

Colorado,

General

Obligation

Bonds,

Limited

Tax

Convertible

to

Unlimited

Tax,

Refunding

Series

2017B,

5.250%,

12/01/47

5/24

at

102.00

1,195,414

500

Crystal

Crossing

Metropolitan

District,

Colorado,

General

Obligation

Limited

Tax

Bonds,

Refunding

Series

2016,

5.250%,

12/01/40

12/25

at

100.00

492,381

Denver

Urban

Renewal

Authority,

Colorado,

Tax

Increment

Revenue

Bonds,

9th

and

Colorado

Urban

Redevelopement

Area,

Series

2018A

:

2,125

(c)

5.250%,

12/01/39

5/24

at

103.00

2,137,539

425

(c)

5.250%,

12/01/39

5/24

at

103.00

427,508

25

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Colorado

(continued)

$

11,700

E-470

Public

Highway

Authority,

Colorado,

Senior

Revenue

Bonds,

Capital

Appreciation

Series

2010A,

0.000%,

9/01/41

No

Opt.

Call

$

5,412,120

6,525

E-470

Public

Highway

Authority,

Colorado,

Senior

Revenue

Bonds,

Series

1997B,

0.000%,

9/01/26

-

NPFG

Insured

No

Opt.

Call

5,977,342

E-470

Public

Highway

Authority,

Colorado,

Senior

Revenue

Bonds,

Series

2000B

:

17,030

0.000%,

9/01/25

-

NPFG

Insured

No

Opt.

Call

16,200,283

10,005

0.000%,

9/01/32

-

NPFG

Insured

No

Opt.

Call

7,363,835

43,090

0.000%,

9/01/33

-

NPFG

Insured

No

Opt.

Call

30,408,324

E-470

Public

Highway

Authority,

Colorado,

Toll

Revenue

Bonds,

Series

2004A

:

20,000

0.000%,

9/01/27

-

NPFG

Insured

No

Opt.

Call

17,728,908

1,180

0.000%,

9/01/28

-

NPFG

Insured

No

Opt.

Call

1,011,236

7,000

0.000%,

9/01/34

-

NPFG

Insured

No

Opt.

Call

4,738,137

5,575

(c)

Falcon

Area

Water

and

Wastewater

Authority

(El

Paso

County,

Colorado),

Tap

Fee

Revenue

Bonds,

Series

2022A,

6.750%,

12/01/34

9/27

at

103.00

5,491,758

590

Foothills

Metropolitan

District,

Fort

Collins,

Colorado,

Special

Revenue

Bonds,

Series

2014,

6.000%,

12/01/38

12/24

at

100.00

557,561

500

Iron

Mountain

Metropolitan

District

2,

Windsor,

Weld

County,

Colorado,

Limited

Tax

General

Obligation

Bonds,

Refunding

&

Improvement

Series

2019A,

5.000%,

12/01/39

12/24

at

103.00

472,960

Lambertson

Farms

Metropolitan

District

1,

Colorado,

Revenue

Bonds,

Refunding

&

Improvement

Series

2015

:

1,005

(d)

5.750%,

12/15/46

5/24

at

100.00

879,377

5,355

(d)

6.000%,

12/15/50

5/24

at

100.00

4,749,890

860

Mountain

Shadows

Metropolitan

District,

Colorado,

General

Obligation

Limited

Tax

Bonds,

Refunding

Series

2016,

5.000%,

12/01/35

12/25

at

100.00

860,963

5,155

North

Range

Metropolitan

District

1,

Adams

County,

Colorado,

General

Obligation

Bonds,

Series

2016B,

3.500%,

12/01/45

12/25

at

100.00

4,155,568

North

Range

Metropolitan

District

2,

Adams

County,

Colorado

,

Limited

Tax

General

Obligation

Bonds,

Refunding

Special

Revenue

&

Improvement

Series

2017A

:

978

5.625%,

12/01/37

5/24

at

102.00

967,496

1,000

5.750%,

12/01/47

5/24

at

102.00

985,314

Painted

Prairie

Public

Improvement

Authority,

Aurora,

Colorado,

Special

Revenue

Bonds,

Series

2019

:

3,380

5.000%,

12/01/39

12/24

at

103.00

3,160,330

6,900

5.000%,

12/01/49

12/24

at

103.00

6,060,884

Park

70

Metropolitan

District,

Aurora,

Colorado,

General

Obligation

Bonds,

Limited

Tax

Refunding

&

Improvement

Series

2016

:

660

5.000%,

12/01/36

12/26

at

100.00

668,757

1,060

5.000%,

12/01/46

12/26

at

100.00

1,050,325

660

Park

Creek

Metropolitan

District,

Colorado,

Senior

Limited

Property

Tax

Supported

Revenue

Bonds,

Refunding

Series

2015A,

5.000%,

12/01/45

12/25

at

100.00

648,754

1,000

(c)

Parkdale

Community

Authority,

Erie

County,

Colorado,

Limited

Tax

Supported

Convertible

Capital

Appreciation

Revenue

Bonds,

District

2,

Series

2024A,

7.750%,

12/01/53

3/29

at

103.00

727,870

1,335

(c)

Peak

Metropolitan

District

1,

Colorado

Springs,

El

Paso

County,

Colorado,

Limited

Tax

General

Obligation

Bonds,

Series

2021A,

5.000%,

12/01/41

3/26

at

103.00

1,187,724

4,000

Peak

Metropolitan

District

3,

Colorado

Springs,

El

Paso

County,

Colorado,

Limited

Tax

General

Obligation

Convertible

Capital

Appreciation

Bonds,

Series

2022A-2,

8.000%,

12/01/52

12/27

at

81.40

2,305,716

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

26

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Colorado

(continued)

$

2,760

(c)

Prairie

Center

Metopolitan

District

No.

3,

In

the

City

of

Brighton,

Adams

County,

Colorado,

Limited

Property

Tax

Supported

Primary

Improvements

Revenue

Bonds,

Refunding

Series

2017A,

5.000%,

12/15/41

12/26

at

100.00

$

2,734,916

1,500

Rampart

Range

Metropolitan

District

5,

Lone

Tree,

Douglas

County,

Colorado,

Limited

Tax

Supported

and

Special

Revenue

Bonds,

Series

2021,

4.000%,

12/01/41

10/26

at

102.00

1,244,649

Reata

South

Metropolitan

District,

Douglas

County,

Colorado,

Limited

Tax

General

Obligation

Bonds,

Refunding

Series

2018

:

1,310

5.375%,

12/01/37

5/24

at

103.00

1,323,611

3,265

5.500%,

12/01/47

5/24

at

103.00

3,267,528

5,050

Regional

Transportation

District,

Colorado,

Private

Activity

Bonds,

Denver

Transit

Partners

Eagle

P3

Project,

Series

2020A,

3.000%,

7/15/37

1/31

at

100.00

4,374,728

1,320

Riverwalk

Metropolitan

District

2,

Glendale,

Arapahoe

County,

Colorado,

Special

Revenue

Bonds,

Series

2022A,

5.000%,

12/01/52

3/27

at

103.00

1,139,871

917

SouthGlenn

Metropolitan

District,

Colorado,

Special

Revenue

Bonds,

Refunding

Series

2016,

5.000%,

12/01/46

5/24

at

101.00

827,935

1,000

St.

Vrain

Lakes

Metropolitan

District

No.

2,

Weld

County,

Colorado,

Limited

Tax

General

Obligation

Bonds,

Series

2017A,

5.000%,

12/01/37

5/24

at

102.00

984,533

STC

Metropolitan

District

2,

Superior,

Boulder

County,

Colorado,

Limited

Tax

General

Obligation

and

Special

Revenue

Bonds,

Refunding

&

improvement

Series

2019A

:

1,000

5.000%,

12/01/38

12/24

at

103.00

951,036

570

5.000%,

12/01/49

12/24

at

103.00

518,076

765

Sterling

Ranch

Community

Authority

Board,

Douglas

County,

Colorado,

Limited

Tax

Supported

District

2,

Refunding

&

Improvement

Senior

Series

2020A,

4.250%,

12/01/50

12/25

at

102.00

641,225

600

Sterling

Ranch

Community

Authority

Board,

Douglas

County,

Colorado,

Special

Improvement

Revenue

Bonds,

Special

District

1,

Series

2024,

5.625%,

12/01/43

No

Opt.

Call

608,653

2,765

Sterling

Ranch

Metropolitan

District

1,

El

Paso

County,

Colorado,

General

Obligation

Limited

Tax

Bonds,

Series

2020,

5.125%,

12/01/50

12/25

at

103.00

2,471,034

450

The

Village

at

Dry

Creek

Metropolitan

District

No.

2,

In

the

City

of

Thornton,

Adams

County,

Colorado,

Limited

Tax

General

Obligation

and

Special

Revenue

Bonds,

Series

2019,

4.375%,

12/01/44

9/24

at

103.00

419,641

500

Transport

Metropolitan

District

3,

In

the

City

of

Aurora,

Adams

County,

Colorado,

General

Obligation

Limited

Bonds,

Convertible

Capital

Appreciation

Series

2021A-2,

5.500%,

12/01/51

3/26

at

103.00

377,669

900

Transport

Metropolitan

District

3,

In

the

City

of

Aurora,

Adams

County,

Colorado,

General

Obligation

Limited

Bonds,

Series

2021A-1,

5.000%,

12/01/51

3/26

at

103.00

711,106

3,410

Vauxmont

Metropolitan

District,

Arvada,

Colorado,

Limited

Tax

General

Obligation

and

Special

Revenue

Bonds,

Convertible

to

Unlimited

Tax

Refunding

Subordinate

Series

2020,

5.000%,

12/01/50

-

AGM

Insured

12/29

at

100.00

3,512,912

8,260

West

Globeville

Metropolitan

District

1,

Denver,

Colorado,

General

Obligation

Limited

Tax

Bonds,

Series

2022,

6.750%,

12/01/52

12/29

at

103.00

7,750,724

Total

Colorado

257,772,309

Connecticut

-

4.6%

(2.8%

of

Total

Investments)

Bridgeport,

Connecticut,

General

Obligation

Bonds,

Series

2014A

:

2,345

5.000%,

7/01/32

-

AGM

Insured

7/24

at

100.00

2,349,410

1,600

5.000%,

7/01/34

-

AGM

Insured

7/24

at

100.00

1,602,777

2,800

Bridgeport,

Connecticut,

General

Obligation

Bonds,

Series

2016D,

5.000%,

8/15/41

-

AGM

Insured

8/26

at

100.00

2,839,989

27

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Connecticut

(continued)

Bridgeport,

Connecticut,

General

Obligation

Bonds,

Series

2017A

:

$

1,470

5.000%,

11/01/36

11/27

at

100.00

$

1,534,269

750

5.000%,

11/01/37

11/27

at

100.00

779,858

875

Connecticut

Health

and

Educational

Facilities

Authority,

Revenue

Bonds,

Connecticut

Childrens

Medical

Center

and

Subsidiaries,

Series

2023E,

4.250%,

7/15/53

1/33

at

100.00

837,313

1,100

Connecticut

Health

and

Educational

Facilities

Authority,

Revenue

Bonds,

Duncaster,

Inc.,

Series

2014A,

5.000%,

8/01/44

8/24

at

100.00

1,053,967

Connecticut

Health

and

Educational

Facilities

Authority,

Revenue

Bonds,

Healthcare

Facility

Expansion

Church

Home

of

Hartford

Inc.

Project,

Series

2016A

:

590

(c)

5.000%,

9/01/46

9/26

at

100.00

504,330

2,540

(c)

5.000%,

9/01/53

9/26

at

100.00

2,066,003

3,000

(c)

Connecticut

Health

and

Educational

Facilities

Authority,

Revenue

Bonds,

Mary

Wade

Home

Issue,

Series

2019A-1,

5.000%,

10/01/54

10/24

at

104.00

2,284,819

1,915

Connecticut

Health

and

Educational

Facilities

Authority,

Revenue

Bonds,

Middlesex

Hospital,

Series

2015O,

5.000%,

7/01/36

7/25

at

100.00

1,931,401

Connecticut

Health

and

Educational

Facilities

Authority,

Revenue

Bonds,

Nuvance

Health

Series

2019A

:

2,770

4.000%,

7/01/41

7/29

at

100.00

2,543,677

2,000

4.000%,

7/01/49

7/29

at

100.00

1,714,822

Connecticut

Health

and

Educational

Facilities

Authority,

Revenue

Bonds,

Quinnipiac

University,

Refunding

Series

2015L

:

5,500

4.125%,

7/01/41

7/25

at

100.00

5,444,727

1,745

5.000%,

7/01/45

7/25

at

100.00

1,755,778

Connecticut

Health

and

Educational

Facilities

Authority,

Revenue

Bonds,

Quinnipiac

University,

Series

2016M

:

500

5.000%,

7/01/34

7/26

at

100.00

512,282

1,250

5.000%,

7/01/36

7/26

at

100.00

1,275,781

5,145

Connecticut

Health

and

Educational

Facilities

Authority,

Revenue

Bonds,

Sacred

Heart

University,

Series

2017I-1,

5.000%,

7/01/42

7/27

at

100.00

5,180,223

4,025

Connecticut

Health

and

Educational

Facilities

Authority,

Revenue

Bonds,

Stamford

Hospital,

Series

2016K,

4.000%,

7/01/46

7/26

at

100.00

3,485,307

2,250

Connecticut

Health

and

Educational

Facilities

Authority,

Revenue

Bonds,

University

of

New

Haven,

Series

2018K-1,

5.000%,

7/01/38

7/28

at

100.00

2,222,072

Connecticut

Health

and

Educational

Facilities

Authority,

Revenue

Bonds,

Yale-New

Haven

Health

Issue,

Series

2014E

:

2,610

5.000%,

7/01/32

7/24

at

100.00

2,613,783

2,740

5.000%,

7/01/33

7/24

at

100.00

2,743,707

900

5.000%,

7/01/34

7/24

at

100.00

901,129

Connecticut

Housing

Finance

Authority,

Housing

Mortgage

Finance

Program

Bonds,

Social

Series

2023B

:

1,775

4.500%,

11/15/43

5/32

at

100.00

1,788,133

13,425

(f)

4.650%,

11/15/48,

(UB)

5/32

at

100.00

13,489,479

2,940

Connecticut

Housing

Finance

Authority,

Housing

Mortgage

Finance

Program

Bonds,

Social

Series

2024A,

4.450%,

11/15/44

11/32

at

100.00

2,941,510

3,500

Connecticut

State,

General

Obligation

Bonds,

Series

2014F,

5.000%,

11/15/34

11/24

at

100.00

3,518,150

2,630

Connecticut

State,

General

Obligation

Bonds,

Series

2015F,

5.000%,

11/15/34

11/25

at

100.00

2,678,791

3,750

Connecticut

State,

General

Obligation

Bonds,

Series

2017A,

5.000%,

4/15/35

4/27

at

100.00

3,921,333

Connecticut

State,

General

Obligation

Bonds,

Series

2018A

:

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

28

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Connecticut

(continued)

$

2,315

5.000%,

4/15/37

4/28

at

100.00

$

2,438,513

5,000

5.000%,

4/15/38

4/28

at

100.00

5,241,480

1,035

Connecticut

State,

General

Obligation

Bonds,

Series

2018E,

5.000%,

9/15/37

9/28

at

100.00

1,092,901

1,380

Connecticut

State,

Special

Tax

Obligation

Bonds,

Transportation

Infrastructure

Purposes

Series

2015A,

5.000%,

8/01/33

8/25

at

100.00

1,401,161

Connecticut

State,

Special

Tax

Obligation

Bonds,

Transportation

Infrastructure

Purposes

Series

2016A

:

5,300

5.000%,

9/01/33

9/26

at

100.00

5,459,289

1,075

5.000%,

9/01/34

9/26

at

100.00

1,107,000

3,500

Connecticut

State,

Special

Tax

Obligation

Bonds,

Transportation

Infrastructure

Purposes,

Series

2014A,

5.000%,

9/01/33

9/24

at

100.00

3,512,292

Greater

New

Haven

Water

Pollution

Control

Authority,

Connecticut,

Regional

Wastewater

System

Revenue

Bonds,

Refunding

Series

2014B

:

500

(e)

5.000%,

8/15/30,

(Pre-refunded

8/15/24)

8/24

at

100.00

501,647

1,000

(e)

5.000%,

8/15/31,

(Pre-refunded

8/15/24)

8/24

at

100.00

1,003,295

55

Greater

New

Haven

Water

Pollution

Control

Authority,

Connecticut,

Regional

Wastewater

System

Revenue

Bonds,

Series

2005A,

5.000%,

8/15/35

-

NPFG

Insured

5/24

at

100.00

54,999

225

Hamden,

Connecticut,

General

Obligation

Bonds,

Series

2016,

5.000%,

8/15/32

-

BAM

Insured

8/24

at

100.00

225,806

2,315

(c)

Harbor

Point

Infrastructure

Improvement

District,

Connecticut,

Special

Obligation

Revenue

Bonds,

Harbor

Point

Project,

Refunding

Series

2017,

5.000%,

4/01/39

4/27

at

100.00

2,297,791

10,015

(e)

Hartford

County

Metropolitan

District,

Connecticut,

Clean

Water

Project

Revenue

Bonds,

Refunding

Green

Bond

Series

2014A,

5.000%,

11/01/42,

(Pre-refunded

11/01/24)

11/24

at

100.00

10,077,579

2,285

Hartford

County

Metropolitan

District,

Connecticut,

General

Obligation

Bonds,

Series

2018,

5.000%,

7/15/36

7/28

at

100.00

2,431,791

1,550

New

Haven,

Connecticut,

General

Obligation

Bonds,

Refunding

Series

2016A,

5.000%,

8/15/35

-

AGM

Insured

8/26

at

100.00

1,593,373

985

(e)

New

Haven,

Connecticut,

General

Obligation

Bonds,

Series

2014A,

5.000%,

8/01/33,

(Pre-refunded

8/01/24)

-

AGM

Insured

8/24

at

100.00

987,668

New

Haven,

Connecticut,

General

Obligation

Bonds,

Series

2015

:

790

5.000%,

9/01/32

-

AGM

Insured

9/25

at

100.00

803,620

1,620

5.000%,

9/01/33

-

AGM

Insured

9/25

at

100.00

1,646,643

500

5.000%,

9/01/35

-

AGM

Insured

9/25

at

100.00

507,860

New

Haven,

Connecticut,

General

Obligation

Bonds,

Series

2017A

:

1,045

5.000%,

8/01/35

8/27

at

100.00

1,084,261

1,425

5.000%,

8/01/36

8/27

at

100.00

1,475,088

900

North

Haven,

Connecticut,

General

Obligation

Bonds,

Series

2006,

5.000%,

7/15/24

No

Opt.

Call

902,226

795

(e)

South

Central

Connecticut

Regional

Water

Authority

Water

System

Revenue

Bonds,

Thirtieth

Series

2014A,

5.000%,

8/01/44,

(Pre-refunded

8/01/24)

8/24

at

100.00

797,252

2,220

South

Central

Connecticut

Regional

Water

Authority,

Water

System

Revenue

Bonds,

Refunding

Thirty-Second

Series

2016B,

5.000%,

8/01/37

8/26

at

100.00

2,296,194

500

Stamford,

Connecticut,

Water

Pollution

Control

System

and

Facility

Revenue

Bonds,

Series

2013A,

5.250%,

8/15/43

5/24

at

100.00

500,163

1,285

Steel

Point

Infrastructure

Improvement

District,

Connecticut,

Special

Obligation

Revenue

Bonds,

Steelpointe

Harbor

Project,

Series

2021,

4.000%,

4/01/51

4/30

at

100.00

1,011,206

29

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Connecticut

(continued)

$

1,005

Town

of

Hamden,

Connecticut,

General

Obligation

Bonds,

Refunding

Series

2018A,

5.000%,

8/15/30

-

BAM

Insured

8/28

at

100.00

$

1,063,210

2,250

University

of

Connecticut,

General

Obligation

Bonds,

Series

2015A,

5.000%,

3/15/31

3/26

at

100.00

2,306,672

Waterbury,

Connecticut,

General

Obligation

Bonds,

Lot

A

Series

2015

:

445

5.000%,

8/01/30

-

BAM

Insured

8/25

at

100.00

455,449

390

5.000%,

8/01/31

-

BAM

Insured

8/25

at

100.00

399,214

610

5.000%,

8/01/32

-

BAM

Insured

8/25

at

100.00

624,382

445

5.000%,

8/01/33

-

BAM

Insured

8/25

at

100.00

455,434

445

5.000%,

8/01/34

-

BAM

Insured

8/25

at

100.00

455,443

Total

Connecticut

132,725,722

Delaware

-

0.3%

(0.2%

of

Total

Investments)

Delaware

State

Housing

Authority,

Senior

Single

Family

Mortgage

Revenue

Bonds,

Series

2024A

:

450

4.625%,

7/01/49

1/33

at

100.00

449,179

700

4.700%,

7/01/54

1/33

at

100.00

697,444

Delaware

State

Housing

Authority,

Senior

Single

Family

Mortgage

Revenue

Bonds,

Series

2024B

:

1,655

4.650%,

7/01/49,

(WI/DD)

7/33

at

100.00

1,656,501

1,020

4.750%,

7/01/54,

(WI/DD)

7/33

at

100.00

1,021,258

Kent

County,

Delaware,

Student

Housing

&

Dining

Facility

Revenue

Bonds,

Collegiate

Housing

Foundation

-

Dover

LLC

Delaware

State

University

Project,

Series

2018A

:

3,010

5.000%,

7/01/48

1/28

at

100.00

2,988,921

1,000

5.000%,

7/01/58

1/28

at

100.00

966,577

Total

Delaware

7,779,880

District

of

Columbia

-

3.6%

(2.1%

of

Total

Investments)

3,780

District

of

Columbia

Student

Dormitory

Revenue

Bonds,

Provident

Group

-

Howard

Properties

LLC

Issue,

Series

2013,

5.000%,

10/01/45

5/24

at

100.00

3,603,109

182,000

District

of

Columbia

Tobacco

Settlement

Corporation,

Tobacco

Settlement

Asset-Backed

Bonds,

Series

2006A,

0.000%,

6/15/46

5/24

at

25.76

42,454,248

2,620

District

of

Columbia,

Income

Tax

Secured

Revenue

Bonds,

Series

2023A,

5.250%,

5/01/48

5/33

at

100.00

2,873,629

1,500

District

of

Columbia,

Washington,

D.C.,

Revenue

Bonds,

Ingleside

at

Rock

Creek

Project,

Series

2017A,

5.000%,

7/01/42

7/24

at

103.00

1,429,322

Metropolitan

Washington

Airports

Authority,

District

of

Columbia,

Dulles

Toll

Road

Revenue

Bonds,

Dulles

Metrorail

&

Capital

Improvement

Projects,

Refunding

Second

Senior

Lien

Series

2022A

:

2,220

4.000%,

10/01/52

-

AGM

Insured

10/31

at

100.00

2,093,600

17,595

2.750%,

10/01/53

-

AGM

Insured

10/31

at

100.00

11,353,309

22,015

3.000%,

10/01/53

-

AGM

Insured

10/31

at

100.00

15,763,068

11,000

(e)

Metropolitan

Washington

Airports

Authority,

District

of

Columbia,

Dulles

Toll

Road

Revenue

Bonds,

Dulles

Metrorail

&

Capital

improvement

Projects,

Second

Senior

Lien

Series

2009C,

6.500%,

10/01/41,

(Pre-

refunded

10/01/26)

-

AGC

Insured

10/26

at

100.00

11,809,115

10,000

Metropolitan

Washington

Airports

Authority,

District

of

Columbia,

Dulles

Toll

Road

Revenue

Bonds,

Dulles

Metrorail

Capital

Appreciation,

Second

Senior

Lien

Series

2010B,

6.500%,

10/01/44

10/28

at

100.00

10,916,387

Total

District

of

Columbia

102,295,787

Florida

-

4.0%

(2.4%

of

Total

Investments)

990

Bexley

Community

Development

District,

Pasco

County,

Florida,

Special

Assessment

Revenue

Bonds,

Series

2016,

4.700%,

5/01/36

5/26

at

100.00

981,277

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

30

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Florida

(continued)

$

1,000

(c)

Capital

Trust

Agency,

Florida,

Educational

Facilities

Lease

Revenue

Bonds,

Franklin

Academy

Projects,

Series

2020,

5.000%,

12/15/50

7/26

at

100.00

$

852,540

Capital

Trust

Agency,

Florida,

Revenue

Bonds,

Babcock

Neighborhood

School

Inc,

Series

2018

:

1,290

(c)

6.100%,

8/15/38

8/28

at

100.00

1,347,053

1,045

(c)

6.200%,

8/15/48

8/28

at

100.00

1,074,093

Capital

Trust

Agency,

Florida,

Revenue

Bonds,

Babcock

Neighborhood

School

Inc,

Series

2021

:

1,290

(c)

4.000%,

8/15/51

8/28

at

100.00

982,350

1,250

(c)

4.250%,

8/15/61

8/28

at

100.00

948,838

Capital

Trust

Agency,

Florida,

Revenue

Bonds,

Odyssey

Charter

School

Project,

Series

2017A

:

1,065

(c)

5.375%,

7/01/37

7/27

at

100.00

1,069,676

1,470

(c)

5.500%,

7/01/47

7/27

at

100.00

1,454,692

3,788

(c),(d)

Capital

Trust

Agency,

Florida,

Revenue

Bonds,

Provision

CARES

Proton

Therapy

Center,

Orlando

Project,

Series

2018,

7.500%,

6/01/48

6/28

at

100.00

378,803

Capital

Trust

Agency,

Florida,

Revenue

Bonds,

Renaissance

Charter

School

Project,

Series

2017A

:

6,050

(c)

5.125%,

6/15/37

6/27

at

100.00

6,055,682

1,885

(c)

5.250%,

6/15/47

6/27

at

100.00

1,799,921

880

(c)

Capital

Trust

Agency,

Florida,

Revenue

Bonds,

Viera

Charter

School

Project,

Series

2017A,

5.000%,

10/15/37

10/27

at

100.00

874,022

735

(c)

Capital

Trust

Agency,

Florida,

Revenue

Bonds,

Viera

Charter

School

Project,

Series

2019A,

5.000%,

10/15/49

10/27

at

100.00

683,055

4,670

City

of

Miami

Beach,

Florida,

Stormwater

Revenue

Bonds,

Series

2015,

5.000%,

9/01/41

9/25

at

100.00

4,685,047

540

Cityplace

Community

Development

District,

Florida,

Special

Assessement

and  Revenue

Bonds,

Refunding

Series

2012,

5.000%,

5/01/26

No

Opt.

Call

544,621

Creekside

at

Twin

Creeks

Community

Development

District,

Florida,

Special

Assessment

Bonds,

Area

1

Project,

Series

2016A-1

:

240

5.250%,

11/01/37

11/28

at

100.00

243,761

305

5.600%,

11/01/46

11/28

at

100.00

309,247

Downtown

Doral

Community

Development

District,

Florida,

Special

Assessment

Bonds,

Series

2015

:

280

5.250%,

5/01/35

5/26

at

100.00

282,474

315

5.300%,

5/01/36

5/26

at

100.00

317,965

475

5.500%,

5/01/45

5/26

at

100.00

477,547

655

5.500%,

5/01/46

5/26

at

100.00

658,086

Florida

Development

Finance

Corporation,

Educational

Facilities

Revenue

Bonds,

Classical

Preparatory

Incorporated

Project,

Series

2017A

:

255

(c)

6.000%,

6/15/37

6/26

at

100.00

258,007

665

(c)

6.125%,

6/15/46

6/26

at

100.00

669,068

415

(c)

Florida

Development

Finance

Corporation,

Educational

Facilities

Revenue

Bonds,

Classical

Preparatory

Incorporated

Project,

Series

2018A,

6.000%,

6/15/37

6/26

at

100.00

419,894

Florida

Development

Finance

Corporation,

Educational

Facilities

Revenue

Bonds,

Downtown

Doral

Charter

Upper

School

Project,

Series

2017C

:

2,375

(c)

5.650%,

7/01/37

7/27

at

101.00

2,419,700

3,735

(c)

5.750%,

7/01/47

7/27

at

101.00

3,738,766

Florida

Development

Finance

Corporation,

Educational

Facilities

Revenue

Bonds,

Florida

Charter

Foundation

Inc.

Projects,

Series

2016A

:

2,075

(c)

4.750%,

7/15/36

7/26

at

100.00

2,009,472

1,335

(c)

5.000%,

7/15/46

7/26

at

100.00

1,237,013

31

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Florida

(continued)

Florida

Development

Finance

Corporation,

Educational

Facilities

Revenue

Bonds,

Mater

Academy

Projects,

Series

2020A

:

$

4,330

5.000%,

6/15/50

6/27

at

100.00

$

4,164,108

3,405

5.000%,

6/15/55

6/27

at

100.00

3,209,187

Florida

Development

Finance

Corporation,

Educational

Facilities

Revenue

Bonds,

Renaissance

Charter

School

Income

Projects,

Series

2015A

:

3,090

(c)

6.000%,

6/15/35

6/25

at

100.00

3,124,036

3,450

(c)

6.125%,

6/15/46

6/25

at

100.00

3,469,312

550

(c)

Florida

Development

Finance

Corporation,

Educational

Facilities

Revenue

Bonds,

Renaissance

Charter

School,

Inc.

Projects,

Series

2014A,

6.125%,

6/15/44

6/24

at

100.00

550,304

4,380

(c)

Florida

Development

Finance

Corporation,

Educational

Facilities

Revenue

Bonds,

Southwest

Charter

Foundation

Inc

Projects,

Series

2017A,

6.125%,

6/15/47

6/27

at

100.00

4,323,677

Florida

Development

Finance

Corporation,

Educational

Facilities

Revenue

Bonds,

The

Florida

Charter

Educational

Foundation

Inc.

Projects,

Series

2016A

:

1,485

(c)

6.250%,

6/15/36

6/26

at

100.00

1,518,793

4,350

(c)

6.375%,

6/15/46

6/26

at

100.00

4,410,955

5,490

Florida

Housing

Finance

Corporation,

Homeowner

Mortgage

Revenue

Bonds,

Social

Series

2021-1,

2.150%,

7/01/51

1/30

at

100.00

3,281,303

1,435

Grand

Bay

at

Doral

Community

Development

District,

Miami-Dade

County,

Florida,

Special

Assessment

Bonds,

South

Parcel

Assessment

Area

Project,

Series

2016,

4.750%,

5/01/36

5/26

at

100.00

1,432,732

2,215

(c)

Jacksonville,

Florida,

Educational

Facilities

Revenue

Bonds,

Jacksonville

University

Project,

Series

2018B,

5.000%,

6/01/53

6/28

at

100.00

1,987,285

625

(c)

Lakewood

Ranch

Stewardship

District,

Florida,

Special

Assessment

Revenue

Bonds,

Del

Webb

Project,

Series

2017,

5.000%,

5/01/37

5/27

at

100.00

631,054

1,000

Manatee

County,

Florida,

Public

Utilities

Revenue

Bonds,

Improvement

and

Refunding

Series

2023,

4.000%,

10/01/53

4/33

at

100.00

934,202

4,140

(e)

Martin

County

Health

Facilities

Authority,

Florida,

Hospital

Revenue

Bonds,

Martin

Memorial

Medical

Center,

Series

2015,

5.000%,

11/15/45,

(Pre-refunded

11/15/24)

11/24

at

100.00

4,162,342

Miami

Dade

County

Industrial

Development

Authority,

Florida,

Educational

Facilities

Revenue

Bonds,

South

Florida

Autism

Charter

School

Project,

Series

2017

:

1,080

(c)

5.875%,

7/01/37

7/27

at

100.00

1,089,339

1,920

(c)

6.000%,

7/01/47

7/27

at

100.00

1,924,736

4,710

Miami

Dade

County,

Florida,

Rickenbacker

Causeway

Revenue

Bonds,

Series

2014,

5.000%,

10/01/43

10/24

at

100.00

4,714,349

5,000

Miami-Dade

County

Expressway

Authority,

Florida,

Toll

System

Revenue

Bonds,

Series

2014A,

5.000%,

7/01/39

7/24

at

100.00

4,774,943

4,785

Northern

Palm

Beach

County

Improvement

District,

Florida,

Water

Control

and

Improvement

Bonds,

Development

Unit

53,

Series

2015,

5.350%,

8/01/35

8/26

at

100.00

4,862,249

5,070

Orange

County

Health

Facilities

Authority,

Florida,

Hospital

Revenue

Bonds,

Orlando

Health

Obligated

Group,

Inc.,

Series

2022,

4.000%,

10/01/52

4/32

at

100.00

4,687,887

Osceola

County,

Florida,

Transportation

Revenue

Bonds,

Osceola

Parkway,

Refunding

&

Improvement

Series

2019A-1

:

2,890

5.000%,

10/01/49

10/29

at

100.00

2,943,344

3,345

4.000%,

10/01/54

10/29

at

100.00

2,919,128

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

32

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Florida

(continued)

$

2,000

Palm

Beach

County

Health

Facilities

Authority,

Florida,

Hospital

Revenue

Bonds,

Jupiter

Medical

Center,

Series

2022,

5.000%,

11/01/47

11/32

at

100.00

$

2,002,214

825

Reunion

West

Community

Development

District,

Florida,

Special

Assessment

Bonds,

Area

3

Project,

Series

2016,

5.000%,

11/01/46

11/26

at

100.00

820,415

2,470

Sarasota

County

Public

Hospital

District,

Florida,

Hospital

Revenue

Bonds,

Sarasota

Memorial

Hospital

Project,

Series

2018,

4.000%,

7/01/48

7/28

at

100.00

2,300,859

220

(c)

Seminole

County

Industrial

Development

Authority,

Florida,

Educational

Facilities

Revenue

Bonds,

Galileo

Schools

for

Gifted

Learning,

Series

2021A,

4.000%,

6/15/51

6/31

at

100.00

168,167

Six

Mile

Creek

Community

Development

District,

Florida,

Capital

Improvement

Revenue

Bonds,

Assessment

Area

2,

Series

2016

:

145

4.750%,

11/01/28

11/27

at

100.00

146,608

370

5.375%,

11/01/36

11/27

at

100.00

376,179

905

South

Fork

III

Community

Development

District,

Florida,

Special

Assessment

Revenue

Bonds,

Refunding

Series

2016,

5.375%,

5/01/37

5/27

at

100.00

918,461

5,015

Volusia

County

Educational

Facilities

Authority,

Florida,

Revenue

Bonds,

Stetson

University

Inc.

Project,

Series

2015,

5.000%,

6/01/40

6/25

at

100.00

5,058,617

Total

Florida

113,679,455

Georgia

-

4.2%

(2.5%

of

Total

Investments)

Atlanta,

Georgia,

Airport

General

Revenue

Bonds,

Green

Series

2023B-1

:

645

5.000%,

7/01/48

7/33

at

100.00

692,996

3,710

5.000%,

7/01/53

7/33

at

100.00

3,941,624

4,000

Brookhaven

Urban

Redevelopment

Agency,

Georgia,

Revenue

Bonds,

Series

2023A,

4.000%,

7/01/48

7/33

at

100.00

3,872,921

17,085

Burke

County

Development

Authority,

Georgia,

Pollution

Control

Revenue

Bonds,

Georgia

Transmission

Corporation

Vogtle

Project,

Series

2012,

2.750%,

1/01/52

5/31

at

100.00

11,069,281

5,775

Burke

County

Development

Authority,

Georgia,

Pollution

Control

Revenue

Bonds,

Oglethorpe

Power

Corporation

Vogtle

Project,

Series

2017C,

4.125%,

11/01/45

2/28

at

100.00

5,150,806

11,280

Burke

County

Development

Authority,

Georgia,

Pollution

Control

Revenue

Bonds,

Oglethorpe

Power

Corporation

Vogtle

Project,

Series

2017D,

4.125%,

11/01/45

2/28

at

100.00

10,060,794

11,100

(f)

Columbia

County

Hospital

Authority,

Georgia,

Revenue

Anticipation

Certificates,

WellStar

Health

System,

Inc.

Project,

Series

2023B,

5.125%,

4/01/48,

(UB)

4/33

at

100.00

11,740,106

15,305

(e)

Gainesville

and

Hall

County

Hospital

Authority,

Georgia,

Revenue

Anticipation

Certificates,

Northeast

Georgia

Health

Services

Inc.,

Series

2014A,

5.500%,

8/15/54,

(Pre-refunded

2/15/25)

2/25

at

100.00

15,539,163

Georgia

Housing

and

Finance

Authority,

Single

Family

Mortgage

Bonds,

Series

2018A

:

2,680

3.950%,

12/01/43

6/27

at

100.00

2,490,456

4,085

4.000%,

12/01/48

6/27

at

100.00

3,755,404

Georgia

Housing

and

Finance

Authority,

Single

Family

Mortgage

Bonds,

Series

2023A

:

2,215

(f)

4.350%,

12/01/43,

(UB)

6/32

at

100.00

2,165,890

3,000

(f)

4.550%,

12/01/48,

(UB)

6/32

at

100.00

2,987,165

2,930

Georgia

Municipal

Electric

Authority,

Plant

Vogtle

Units

3

&

4

Project

M

Bonds,

Series

2019A,

5.000%,

1/01/56

7/28

at

100.00

2,971,283

1,300

(c)

Macon-Bibb

County

Urban

Development

Authority,

Georgia,

Revenue

Bonds,

Academy

for

Classical

Education,

Series

2017,

5.750%,

6/15/37

6/27

at

100.00

1,336,444

33

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Georgia

(continued)

$

10,000

(c)

Main

Street

Natural

Gas

Inc.,

Georgia,

Gas

Supply

Revenue

Bonds,

Series

2022C,

4.000%,

8/01/52,

(Mandatory

Put

11/01/27)

5/27

at

100.81

$

9,710,020

5,000

Main

Street

Natural

Gas

Inc.,

Georgia,

Gas

Supply

Revenue

Bonds,

Series

2023E-1,

5.000%,

12/01/53,

(Mandatory

Put

6/01/31)

3/31

at

100.08

5,283,073

4,000

(c)

Marietta

Development

Authority,

Georgia,

University

Facilities

Revenue

Bonds,

Life

University,

Inc.

Project,

Refunding

Series

2017A,

5.000%,

11/01/47

11/27

at

100.00

3,649,550

10,000

Municipal

Electric

Authority

of

Georgia,

Plant

Vogtle

Units

3

&

4

Project

J

Bonds,

Series

2015A,

5.000%,

7/01/60

7/25

at

100.00

9,896,187

5,630

Municipal

Electric

Authority

of

Georgia,

Plant

Vogtle

Units

3

&

4

Project

J

Bonds,

Series

2019A,

5.000%,

1/01/49

7/28

at

100.00

5,692,423

6,390

Private

Colleges

and

Universities

Authority,

Georgia,

Revenue

Bonds,

Mercer

University,

Series

2015,

5.000%,

10/01/40

10/25

at

100.00

6,432,694

1,710

Valdosta

and

Lowndes

County

Hospital

Authority,

Georgia,

Revenue

Anticipation

Certificates,

South

Georgia

Medical

Center

Project,

Series

2024,

4.125%,

10/01/49

10/34

at

100.00

1,637,929

Total

Georgia

120,076,209

Guam

-

0.3%

(0.2%

of

Total

Investments)

1,500

Government

of

Guam,

Business

Privilege

Tax

Bonds,

Refunding

Series

2015D,

5.000%,

11/15/39

11/25

at

100.00

1,506,603

Guam

Government

Waterworks

Authority,

Water

and

Wastewater

System

Revenue

Bonds,  Refunding

Series

2024A

:

750

5.000%,

7/01/41

7/34

at

100.00

800,568

875

5.000%,

7/01/42

7/34

at

100.00

932,234

750

5.000%,

7/01/43

7/34

at

100.00

799,051

1,095

5.000%,

1/01/46

7/34

at

100.00

1,157,699

1,665

Guam

Government

Waterworks

Authority,

Water

and

Wastewater

System

Revenue

Bonds,

Refunding

Series

2017,

5.000%,

7/01/40

7/27

at

100.00

1,709,486

1,080

Guam

Government

Waterworks

Authority,

Water

and

Wastewater

System

Revenue

Bonds,

Series

2020A,

5.000%,

1/01/50

7/30

at

100.00

1,101,069

Total

Guam

8,006,710

Hawaii

-

0.1%

(0.0%

of

Total

Investments)

1,500

(c)

Hawaii

Department

of

Budget

and

Finance,

Special

Purpose

Revenue

Bonds,

Chaminade

University

of

Honolulu,

Series

2015A,

5.000%,

1/01/45

1/25

at

100.00

1,290,200

170

(c)

Hawaii

Department

of

Budget

and

Finance,

Special

Purpose

Revenue

Bonds,

Hawaii

Pacific

University,

Series

2013A,

6.875%,

7/01/43

5/24

at

100.00

170,094

650

Honolulu

Board

of

Water

Supply,

Hawaii,

Water

System

Revenue

Bonds,

Sustainability

Series

2024A,

5.000%,

7/01/53

7/34

at

100.00

707,075

Total

Hawaii

2,167,369

Idaho

-

2.0%

(1.2%

of

Total

Investments)

Idaho

Health

Facilities

Authority,

Revenue

Bonds,

Kootenai

Health

Project,

Series

2014

:

3,300

4.375%,

7/01/34

7/24

at

100.00

3,302,358

12,495

4.750%,

7/01/44

7/24

at

100.00

11,676,894

1,250

Idaho

Health

Facilities

Authority,

Revenue

Bonds,

Madison

Memorial

Hospital

Project,

Refunding

Series

2016,

5.000%,

9/01/37

9/26

at

100.00

1,238,502

11,515

Idaho

Housing

&

Finance

Association,

Idaho,

Sales

Tax

Revenue

Bonds,

Transportation

Expansion

&

Congestion

Mitigation

Fund,

Series

2024A,

4.000%,

8/15/49

8/34

at

100.00

10,915,902

Idaho

Housing

and

Finance

Association,

Nonprofit

Facilities

Revenue

Bonds,

Gem

Prep

Meridian

North

LLC,

Series

2020A

:

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

34

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Idaho

(continued)

$

500

(c)

5.000%,

7/01/40

7/25

at

100.00

$

442,990

1,415

(c)

5.250%,

7/01/55

7/25

at

100.00

1,192,985

12,000

(f)

Idaho

Housing

and

Finance

Association,

Single

Family

Mortgage

Revenue

Bonds,

Series

2023C,

4.800%,

7/01/53,

(UB)

1/33

at

100.00

12,061,942

3,220

Idaho

Housing

and

Finance

Association,

Single

Family

Mortgage

Revenue

Bonds,

Series

2024A,

4.600%,

1/01/49

1/33

at

100.00

3,195,403

12,555

(c)

Spring

Valley

Community

Infrastructure

District

1,

Eagle,

Idaho,

Special

Assessment

Bonds,

Series

2021,

3.750%,

9/01/51

12/26

at

103.00

10,246,932

2,500

(c)

Spring

Valley

Community

Infrastructure

District

1,

Eagle,

Idaho,

Special

Assessment

Bonds,

Series

2024,

6.250%,

9/01/53

3/29

at

103.00

2,536,914

Total

Idaho

56,810,822

Illinois

-

23.3%

(14.0%

of

Total

Investments)

67,135

Chicago

Board

of

Education,

Illinois,

Dedicated

Capital

Improvement

Tax

Revenue

Bonds,

Series

2016,

6.000%,

4/01/46

4/27

at

100.00

69,853,175

1,000

Chicago

Board

of

Education,

Illinois,

Dedicated

Capital

Improvement

Tax

Revenue

Bonds,

Series

2017,

5.000%,

4/01/46

4/27

at

100.00

1,001,903

1,110

Chicago

Board

of

Education,

Illinois,

Dedicated

Capital

Improvement

Tax

Revenue

Bonds,

Series

2023,

5.750%,

4/01/48

4/33

at

100.00

1,216,891

5,245

Chicago

Board

of

Education,

Illinois,

General

Obligation

Bonds,

Dedicated

Revenues

Series

2012A,

5.000%,

12/01/42

5/24

at

100.00

5,212,593

8,400

(c)

Chicago

Board

of

Education,

Illinois,

General

Obligation

Bonds,

Dedicated

Revenues,

Refunding

Series

2017B,

7.000%,

12/01/42

12/27

at

100.00

9,101,360

Chicago

Board

of

Education,

Illinois,

General

Obligation

Bonds,

Dedicated

Revenues,

Refunding

Series

2017H

:

5,835

5.000%,

12/01/36

12/27

at

100.00

5,903,572

4,940

5.000%,

12/01/46

12/27

at

100.00

4,854,489

6,055

Chicago

Board

of

Education,

Illinois,

General

Obligation

Bonds,

Dedicated

Revenues,

Refunding

Series

2018D,

5.000%,

12/01/46

12/28

at

100.00

5,950,188

38,905

Chicago

Board

of

Education,

Illinois,

General

Obligation

Bonds,

Dedicated

Revenues,

Series

2016A,

7.000%,

12/01/44

12/25

at

100.00

40,274,721

14,805

Chicago

Board

of

Education,

Illinois,

General

Obligation

Bonds,

Dedicated

Revenues,

Series

2016B,

6.500%,

12/01/46

12/26

at

100.00

15,383,313

19,585

(c)

Chicago

Board

of

Education,

Illinois,

General

Obligation

Bonds,

Dedicated

Revenues,

Series

2017A,

7.000%,

12/01/46

12/27

at

100.00

21,093,398

1,410

Chicago

Board

of

Education,

Illinois,

Unlimited

Tax

General

Obligation

Bonds,

Dedicated

Tax

Revenues,

Series

1998B-1,

0.000%,

12/01/30

-

NPFG

Insured

No

Opt.

Call

1,059,775

Chicago

Transit

Authority,

Illinois,

Sales

Tax

Receipts

Revenue

Bonds,

Second

Lien

Series

2020A

:

1,405

4.000%,

12/01/50

12/29

at

100.00

1,254,029

1,500

5.000%,

12/01/55

12/29

at

100.00

1,525,307

10,995

Chicago

Transit

Authority,

Illinois,

Sales

Tax

Receipts

Revenue

Bonds,

Series

2014,

5.250%,

12/01/49

12/24

at

100.00

11,023,209

Chicago,

Illinois,

General

Airport

Revenue

Bonds,

O'Hare

International

Airport,

Refunding

Senior

Lien

Series

2022B

:

2,290

4.500%,

1/01/56

1/31

at

100.00

2,250,965

5,000

5.250%,

1/01/56

1/31

at

100.00

5,256,880

1,355

Chicago,

Illinois,

General

Obligation

Bonds,

Chicago

Works

Series

2023A,

5.500%,

1/01/39

1/32

at

100.00

1,472,790

32,670

Chicago,

Illinois,

General

Obligation

Bonds,

City

Colleges,

Series

1999,

0.000%,

1/01/32

-

FGIC

Insured

No

Opt.

Call

23,635,882

35

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Illinois

(continued)

$

17,605

Chicago,

Illinois,

General

Obligation

Bonds,

Project

&

Refunding

Series

2017A,

6.000%,

1/01/38

1/27

at

100.00

$

18,345,012

2,605

Chicago,

Illinois,

General

Obligation

Bonds,

Refunding

Series

2016C,

5.000%,

1/01/38

1/26

at

100.00

2,611,375

3,000

Chicago,

Illinois,

Wastewater

Transmission

Revenue

Bonds,

Second

Lien

Series

2008C,

5.000%,

1/01/39

1/25

at

100.00

3,004,601

Illinois

Educational

Facilities

Authority,

Revenue

Bonds,

Field

Museum

of

Natural

History,

Series

2002.RMKT

:

2,500

4.450%,

11/01/36

11/25

at

102.00

2,554,239

3,400

5.500%,

11/01/36

5/24

at

100.00

3,404,238

Illinois

Finance

Authority,

Charter

School

Revenue

Bonds,

Intrinsic

Charter

Schools

Belmont

School

Project,

Series

2015A

:

1,700

(c)

5.750%,

12/01/35

12/25

at

100.00

1,713,416

115

(c)

6.000%,

12/01/45

12/25

at

100.00

115,387

Illinois

Finance

Authority,

Health

Services

Facility

Lease

Revenue

Bonds,

Provident

Group

-

UIC

Surgery

Center,

LLC

-

University

of

Illinois

Health

Services

Facility

Project,

Series

2020

:

3,835

4.000%,

10/01/50

10/30

at

100.00

3,220,860

5,190

4.000%,

10/01/55

10/30

at

100.00

4,229,207

Illinois

Finance

Authority,

Revenue

Bonds,

Ascension

Health/fkaPresence

Health

Network,

Series

2016C

:

37,030

4.000%,

2/15/41

2/27

at

100.00

35,553,680

1,755

(e)

4.000%,

2/15/41,

(Pre-refunded

2/15/27)

2/27

at

100.00

1,777,732

80

(e)

4.000%,

2/15/41,

(Pre-refunded

2/15/27)

2/27

at

100.00

81,036

Illinois

Finance

Authority,

Revenue

Bonds,

Centegra

Health

System,

Series

2014A

:

1,485

(e)

5.000%,

9/01/34,

(Pre-refunded

9/01/24)

9/24

at

100.00

1,489,893

19,025

(e)

5.000%,

9/01/42,

(Pre-refunded

9/01/24)

9/24

at

100.00

19,087,685

500

(c)

Illinois

Finance

Authority,

Revenue

Bonds,

DePaul

College

Prep

Foundation,

Series

2023A,

5.625%,

8/01/53

8/33

at

100.00

520,240

4,000

Illinois

Finance

Authority,

Revenue

Bonds,

Lutheran

Home

and

Services,

Series

2019A,

5.000%,

11/01/49

11/26

at

103.00

2,945,910

10,000

(f)

Illinois

Finance

Authority,

Revenue

Bonds,

Northshore

-

Edward-Elmhurst

Health

Credit

Group,

Series

2022A,

5.000%,

8/15/47,

(UB)

8/32

at

100.00

10,491,870

12,000

Illinois

Finance

Authority,

Revenue

Bonds,

OSF

Healthcare

System,

Series

2015A,

5.000%,

11/15/45

11/25

at

100.00

12,075,580

Illinois

Finance

Authority,

Revenue

Bonds,

Rosalind

Franklin

University

Research

Building

Project,

Series

2017C

:

1,000

5.000%,

8/01/42

8/27

at

100.00

997,323

1,000

5.000%,

8/01/46

8/27

at

100.00

975,277

1,000

5.000%,

8/01/47

8/27

at

100.00

969,992

Illinois

Finance

Authority,

Revenue

Bonds,

Silver

Cross

Hospital

and

Medical

Centers,

Refunding

Series

2015C

:

560

5.000%,

8/15/35

8/25

at

100.00

565,970

5,140

5.000%,

8/15/44

8/25

at

100.00

5,165,315

10,000

(f)

Illinois

Finance

Authority,

Revenue

Bonds,

University

of

Chicago

Medicine,

Series

2022A,

5.000%,

8/15/52,

(UB)

8/32

at

100.00

10,294,311

Illinois

Finance

Authority,

Revenue

Bonds,

University

of

Chicago,

Refunding

Series

2015A

:

17,765

(e)

5.000%,

10/01/46,

(Pre-refunded

10/01/25)

10/25

at

100.00

18,105,875

2,235

5.000%,

10/01/46

10/25

at

100.00

2,236,416

5,670

Illinois

Housing

Development

Authority,

Multifamily

Housing

Revenue

Bonds,

Series

2021C,

2.850%,

7/01/56

7/30

at

100.00

3,688,111

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

36

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Illinois

(continued)

$

3,665

Illinois

Sports

Facility

Authority,

State

Tax

Supported

Bonds,

Refunding

Series

2014,

5.250%,

6/15/31

-

AGM

Insured

6/24

at

100.00

$

3,667,753

Illinois

State,

General

Obligation

Bonds,

December

Series

2017A

:

11,800

5.000%,

12/01/38

12/27

at

100.00

12,152,913

1,330

5.000%,

12/01/39

12/27

at

100.00

1,364,026

Illinois

State,

General

Obligation

Bonds,

February

Series

2014

:

1,575

5.250%,

2/01/34

5/24

at

100.00

1,576,813

7,515

5.000%,

2/01/39

5/24

at

100.00

7,519,618

5,200

Illinois

State,

General

Obligation

Bonds,

January

Series

2016,

5.000%,

1/01/29

1/26

at

100.00

5,311,919

Illinois

State,

General

Obligation

Bonds,

May

Series

2014

:

510

5.000%,

5/01/36

5/24

at

100.00

510,412

1,915

5.000%,

5/01/39

5/24

at

100.00

1,916,141

4,460

Illinois

State,

General

Obligation

Bonds,

May

Series

2020,

5.500%,

5/01/39

5/30

at

100.00

4,820,895

1,495

Illinois

State,

General

Obligation

Bonds,

May

Series

2023B,

4.500%,

5/01/48

5/32

at

100.00

1,411,430

12,180

Illinois

State,

General

Obligation

Bonds,

November

Series

2016,

5.000%,

11/01/41

11/26

at

100.00

12,271,501

31,285

Illinois

State,

General

Obligation

Bonds,

November

Series

2017C,

5.000%,

11/01/29

11/27

at

100.00

32,666,007

2,040

Illinois

State,

General

Obligation

Bonds,

November

Series

2017D,

5.000%,

11/01/27

No

Opt.

Call

2,134,429

5,000

Illinois

State,

General

Obligation

Bonds,

November

Series

2019B,

4.000%,

11/01/35

11/29

at

100.00

4,976,809

5,000

Illinois

State,

General

Obligation

Bonds,

October

Series

2016,

5.000%,

2/01/29

2/27

at

100.00

5,173,565

Illinois

Toll

Highway

Authority,

Toll

Highway

Revenue

Bonds,

Refunding

Senior

Series

2024A

:

2,800

5.000%,

1/01/36

7/34

at

100.00

3,259,426

3,880

5.000%,

1/01/37

7/34

at

100.00

4,463,441

19,920

Illinois

Toll

Highway

Authority,

Toll

Highway

Revenue

Bonds,

Senior

Lien

Series

2015B,

5.000%,

1/01/40

1/26

at

100.00

20,276,435

10,470

Illinois

Toll

Highway

Authority,

Toll

Highway

Revenue

Bonds,

Senior

Lien

Series

2019A,

5.000%,

1/01/44

7/29

at

100.00

10,934,131

4,250

Illinois

Toll

Highway

Authority,

Toll

Highway

Revenue

Bonds,

Senior

Series

2023A,

5.250%,

1/01/45

7/33

at

100.00

4,580,488

540

Metropolitan

Pier

and

Exposition

Authority,

Illinois,

McCormick

Place

Expansion

Project

Bonds,

Refunding

Series

2015B,

5.000%,

6/15/52

12/25

at

100.00

541,447

Metropolitan

Pier

and

Exposition

Authority,

Illinois,

McCormick

Place

Expansion

Project

Bonds,

Refunding

Series

2020A

:

11,305

4.000%,

6/15/50

12/29

at

100.00

10,041,152

5,100

5.000%,

6/15/50

12/29

at

100.00

5,204,468

Metropolitan

Pier

and

Exposition

Authority,

Illinois,

McCormick

Place

Expansion

Project

Bonds,

Refunding

Series

2022A

:

9,945

4.000%,

12/15/47

12/31

at

100.00

8,998,635

4,500

4.000%,

6/15/52

12/31

at

100.00

3,952,131

Metropolitan

Pier

and

Exposition

Authority,

Illinois,

McCormick

Place

Expansion

Project

Bonds,

Series

2015A

:

2,890

0.000%,

12/15/52

No

Opt.

Call

633,789

5,185

5.000%,

6/15/53

12/25

at

100.00

5,197,297

37

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Illinois

(continued)

Metropolitan

Pier

and

Exposition

Authority,

Illinois,

Revenue

Bonds,

McCormick

Place

Expansion

Project,

Capital

Appreciation

Refunding

Series

2010B-1

:

$

25,000

0.000%,

6/15/44

-

AGM

Insured

No

Opt.

Call

$

9,755,382

43,200

0.000%,

6/15/45

-

AGM

Insured

No

Opt.

Call

15,840,533

10,000

0.000%,

6/15/46

-

AGM

Insured

No

Opt.

Call

3,443,696

8,750

Metropolitan

Pier

and

Exposition

Authority,

Illinois,

Revenue

Bonds,

McCormick

Place

Expansion

Project,

Series

1994B,

0.000%,

6/15/28

-

NPFG

Insured

No

Opt.

Call

7,493,139

Metropolitan

Pier

and

Exposition

Authority,

Illinois,

Revenue

Bonds,

McCormick

Place

Expansion

Project,

Series

2002A

:

18,085

0.000%,

12/15/24

-

NPFG

Insured

No

Opt.

Call

17,637,501

20,045

0.000%,

12/15/35

-

AGM

Insured

No

Opt.

Call

12,854,163

9,010

0.000%,

6/15/37

-

NPFG

Insured

No

Opt.

Call

5,168,306

465

Morton

Grove,

Illinois,

Tax

Increment

Revenue

Bonds,

Sawmill

Station

Redevelopment

Project,

Senior

Lien

Series

2019,

5.000%,

1/01/39

1/26

at

100.00

432,064

1,842

Plano,

Illinois,

Special

Tax

Bonds,

Special

Service

Area

1

&

2

Lakewood

Springs

Project,

Refunding

Series

2014,

5.000%,

3/01/34

-

AGM

Insured

5/24

at

100.00

1,842,073

2,615

Regional

Transportation

Authority,

Cook,

DuPage,

Kane,

Lake,

McHenry

and

Will

Counties,

Illinois,

General

Obligation

Bonds,

Series

2000A,

6.500%,

7/01/30

-

NPFG

Insured

No

Opt.

Call

2,982,042

4,000

Southwestern

Illinois

Development

Authority,

School

Revenue

Bonds,

Triad

School

District

2,

Madison

County,

Illinois,

Series

2006,

0.000%,

10/01/25

-

NPFG

Insured

No

Opt.

Call

3,763,166

12,125

Springfield,

Illinois,

Electric

Revenue

Bonds,

Refunding

Senior

Lien

Series

2015,

5.000%,

3/01/40

-

AGM

Insured

3/25

at

100.00

12,148,444

6,415

Will

County

School

District

122,

New

Lenox,

Illinois,

General

Obligation

Bonds,

Capital

Appreciation

School

Series

2004D,

0.000%,

11/01/24

-

AGM

Insured

No

Opt.

Call

6,277,978

Total

Illinois

668,740,549

Indiana

-

2.7%

(1.6%

of

Total

Investments)

12,045

Indiana

Finance

Authority,

Educational

Facilities

Revenue

Bonds,

Valparaiso

University

Project,

Series

2014,

5.000%,

10/01/44

10/24

at

100.00

11,670,358

5,000

Indiana

Finance

Authority,

Hospital

Revenue

Bonds,

Indiana

University

Health

Obligation

Group,

Fixed

Rate

Series

2023A,

5.000%,

10/01/53

10/33

at

100.00

5,255,607

17,970

Indiana

Finance

Authority,

Wastewater

Utility

Revenue

Bonds,

CWA

Authority

Project,

Series

2014A,

5.000%,

10/01/44

10/24

at

100.00

18,056,308

10,000

Indiana

Housing

and

Community

Development

Authority,

Single

Family

Mortgage

Revenue

Bonds,

Social

Series

2024B-1,

4.750%,

7/01/49,

(WI/

DD)

1/33

at

100.00

10,033,201

Indianapolis

Local

Public

Improvement

Bond

Bank,

Indiana,

Series

1999E

:

10,000

0.000%,

2/01/26

-

AMBAC

Insured

No

Opt.

Call

9,332,872

20,000

0.000%,

2/01/28

-

AMBAC

Insured

No

Opt.

Call

17,381,820

5,015

IPS

Multi-School

Building

Corporation,

Indiana,

First

Mortgage

Revenue

Bonds,

Social

Series

2023,

4.250%,

7/15/43

7/31

at

100.00

5,017,654

Total

Indiana

76,747,820

Iowa

-

1.6%

(0.9%

of

Total

Investments)

Iowa

Finance

Authority,

Iowa,

Midwestern

Disaster

Area

Revenue

Bonds,

Iowa

Fertilizer

Company

Project,

Refunding

Series

2022

:

10,860

5.000%,

12/01/50,

(Mandatory

Put

12/01/42)

12/29

at

103.00

11,273,685

9,045

5.000%,

12/01/50

12/29

at

103.00

9,422,488

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

38

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Iowa

(continued)

$

5,700

Iowa

Finance

Authority,

Senior

Housing

Revenue

Bonds,

PHS

Council

Bluffs,

Inc.

Project,

Series

2018,

5.250%,

8/01/55

5/24

at

102.00

$

4,313,619

2,000

Iowa

Finance

Authority,

Single

Family

Mortgage

Revenue

Bonds,

Social

Series

2024A,

4.750%,

7/01/49

7/33

at

100.00

2,006,961

10,000

(f)

Iowa

Finance

Authority,

Single

Family

Mortgage

Revenue

Bonds,

Social

Taxable

Series

2023C,

4.850%,

7/01/43,

(UB)

1/33

at

100.00

10,213,029

36,850

Iowa

Tobacco

Settlement

Authority,

Tobacco

Settlement

Asset-Backed

Bonds,

Class

2

Capital

Appreciation

Senior

Lien

Series

2021B-2,

0.000%,

6/01/65

6/31

at

25.58

4,618,190

3,365

Iowa

Tobacco

Settlement

Authority,

Tobacco

Settlement

Asset-Backed

Bonds,

Seenior

Lien

Series

Class

2

Series

2021B-1,

4.000%,

6/01/49

6/31

at

100.00

3,316,052

Total

Iowa

45,164,024

Kansas

-

0.3%

(0.2%

of

Total

Investments)

1,000

Lenexa,

Kansas,

Health

Care

Facilities

Revenue

Bonds,

Lakeview

Village

Inc,

Series

2017A,

5.000%,

5/15/43

5/27

at

100.00

949,347

Wyandotte

County-Kansas

City

Unified

Government,

Kansas,

Sales

Tax

Special

Obligation

Bonds,

Vacation

Village

Project

Area

1

and

2A,

Series

2015

:

2,160

5.000%,

9/01/27

9/25

at

100.00

2,105,906

2,380

5.750%,

9/01/32

9/25

at

100.00

2,237,657

2,575

6.000%,

9/01/35

9/25

at

100.00

2,274,891

2,500

(c)

Wyandotte

County-Kansas

City

Unified

Government,

Kansas,

Sales

Tax

Special

Obligation

Bonds,

Village

East

Project

Areas

2B

3

and

5,

Series

2022,

5.750%,

9/01/39

3/29

at

103.00

2,411,279

Total

Kansas

9,979,080

Kentucky

-

2.0%

(1.2%

of

Total

Investments)

6,400

Christian

County,

Kentucky,

Hospital

Revenue

Bonds,

Jennie

Stuart

Medical

Center,

Series

2016,

5.500%,

2/01/44

2/26

at

100.00

6,439,339

10,140

Kentucky

Economic

Development

Finance

Authority,

Hospital

Revenue

Bonds,

Owensboro

Health,

Refunding

Series

2017A,

5.000%,

6/01/37

6/27

at

100.00

10,293,612

Kentucky

Economic

Development

Finance

Authority,

Revenue

Bonds,

Next

Generation

Kentucky

Information

Highway

Project,

Senior

Series

2015A

:

4,345

5.000%,

7/01/37

7/25

at

100.00

4,367,156

15,620

5.000%,

1/01/45

7/25

at

100.00

15,465,723

1,190

Kentucky

Housing

Corporation,

Single

Family

Mortgage

Revenue

Bonds,

Series

2023A,

4.800%,

7/01/48

7/32

at

100.00

1,196,650

Kentucky

Housing

Corporation,

Single

Family

Mortgage

Revenue

Bonds,

Series

2024A

:

1,030

4.550%,

7/01/49

1/33

at

100.00

1,021,254

1,000

4.625%,

1/01/54

1/33

at

100.00

983,942

Kentucky

Public

Transportation

Infrastructure

Authority,

Toll

Revenue

Bonds,

Downtown

Crossing

Project,

Convertible

Capital

Appreciation

First

Tier

Series

2013C

:

4,360

6.750%,

7/01/43

7/31

at

100.00

4,982,317

8,510

6.875%,

7/01/46

7/31

at

100.00

9,744,545

2,855

Louisville

and

Jefferson

County

Metropolitan

Government,

Kentucky,

Hospital

Revenue

Bonds,

UofL

Health

Project,

Series

2022A,

5.000%,

5/15/52

5/32

at

100.00

2,939,962

Total

Kentucky

57,434,500

39

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Louisiana

-

1.4%

(0.8%

of

Total

Investments)

$

2,435

Ascension

Parish

Industrial

development

Board,

Louisiana,

Revenue

Bonds,

Impala

Warehousing

(US)

LLC

Project,

Series

2013,

6.000%,

7/01/36

5/24

at

100.00

$

2,435,546

Louisiana

Housing

Corporation,

Single

Family

Mortgage

Revenue

Bonds,

Home

Ownership

Program,

Series

2024A

:

1,130

4.550%,

12/01/49

6/33

at

100.00

1,119,970

1,065

4.650%,

12/01/54

6/33

at

100.00

1,052,543

12,840

Louisiana

Publc

Facilities

Authority,

Lousiana,

Revenue

Bonds,

Ochsner

Clinic

Foundation

Project,

Series

2020A,

4.000%,

5/15/49

5/30

at

100.00

11,660,075

Louisiana

Public

Facilities

Authority,

Hospital

Revenue

Bonds,

Franciscan

Missionaries

of

Our

Lady

Health

System,

Series

1998A

:

3,565

5.750%,

7/01/25

No

Opt.

Call

3,624,051

135

(e)

5.750%,

7/01/25,

(ETM)

No

Opt.

Call

138,442

8,970

Louisiana

Public

Facilities

Authority,

Revenue

Bonds,

Loyola

University

Project,

Refunding

Series

2017,

5.250%,

10/01/46

10/33

at

100.00

9,391,503

Louisiana

Public

Facilities

Authority,

Revenue

Bonds,

Ochsner

Clinic

Foundation

Project,

Series

2015

:

1,065

4.250%,

5/15/40

5/25

at

100.00

1,065,286

5,000

5.000%,

5/15/47

5/25

at

100.00

5,022,658

1,000

(e)

New

Orleans,

Louisiana,

Sewerage

Service

Revenue

Bonds,

Refunding

Series

2014,

4.250%,

6/01/34,

(Pre-refunded

6/01/24)

6/24

at

100.00

1,000,136

3,275

(c)

Saint

James

Parish,

Louisiana,

Revenue

Bonds,

NuStar

Logistics,

L.P.

Project,

Series

2010A,

6.350%,

10/01/40

6/30

at

100.00

3,541,597

Total

Louisiana

40,051,807

Maine

-

1.5%

(0.9%

of

Total

Investments)

Maine

Health

and

Higher

Educational

Facilities

Authority

Revenue

Bonds,

Eastern

Maine

Medical

Center

Obligated

Group

Issue,

Series

2016A

:

5,505

4.000%,

7/01/41

7/26

at

100.00

4,680,336

10,265

4.000%,

7/01/46

7/26

at

100.00

8,188,081

10,000

(e)

Maine

Health

and

Higher

Educational

Facilities

Authority,

Revenue

Bonds,

Mainehealth

Issue,

Series

2015,

5.000%,

7/01/39,

(Pre-refunded

7/01/24)

7/24

at

100.00

10,015,427

4,500

Maine

State

Housing

Authority,

Multifamily

Mortgage

Purchase

Bonds,

Series

2021A,

2.200%,

11/15/51

5/30

at

100.00

2,550,020

8,885

Maine

State

Housing

Authority,

Multifamily

Mortgage

Purchase

Bonds,

Series

2022A,

2.600%,

11/15/46

11/30

at

100.00

6,107,764

7,695

Maine

State

Housing

Authority,

Single

Family

Mortgage

Purchase

Bonds,

Series

2020D,

2.800%,

11/15/45

5/29

at

100.00

5,532,531

915

Maine

State

Housing

Authority,

Single

Family

Mortgage

Purchase

Bonds,

Social

Series

2021C,

2.300%,

11/15/46

11/30

at

100.00

591,305

2,000

Maine

State

Housing

Authority,

Single

Family

Mortgage

Purchase

Bonds,

Social

Series

2023A,

4.600%,

11/15/48

5/32

at

100.00

2,004,279

2,480

Maine

State

Housing

Authority,

Single

Family

Mortgage

Purchase

Bonds,

Social

Series

2023B-1,

4.750%,

11/15/43

5/33

at

100.00

2,505,005

Total

Maine

42,174,748

Maryland

-

1.9%

(1.2%

of

Total

Investments)

Baltimore,

Maryland,

Convention

Center

Hotel

Revenue

Bonds,

Refunding

Series

2017

:

1,280

5.000%,

9/01/33

9/27

at

100.00

1,285,327

3,050

5.000%,

9/01/39

9/27

at

100.00

2,933,413

3,025

5.000%,

9/01/46

9/27

at

100.00

2,735,118

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

40

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Maryland

(continued)

$

1,000

(c)

Howard

County,

Maryland,

Special

Obligation

Bonds,

Downtown

Columbia

Project,

Series

2017A,

4.375%,

2/15/39

2/26

at

100.00

$

935,111

Maryland

Community

Development

Administration

Department

of

Housing

and

Community

Development,

Residential

Revenue

Bonds,

Series

2021C

:

6,600

2.450%,

9/01/41

9/30

at

100.00

4,822,097

12,000

2.550%,

9/01/44

9/30

at

100.00

8,532,866

7,975

Maryland

Health

and

Higher

Educational

Facilities

Authority,

Revenue

Bonds,

Adventist

HealthCare

Issue,

Series

2021B,

4.000%,

1/01/51

1/32

at

100.00

6,461,864

13,315

Maryland

Health

and

Higher

Educational

Facilities

Authority,

Revenue

Bonds,

Adventist

Healthcare,

Series

2016A,

5.500%,

1/01/46

1/27

at

100.00

13,393,080

4,000

Maryland

Health

and

Higher

Educational

Facilities

Authority,

Revenue

Bonds,

LifeBridge

Health

Issue,

Series

2016,

5.000%,

7/01/47

7/26

at

100.00

4,047,958

1,500

(e)

Maryland

Health

and

Higher

Educational

Facilities

Authority,

Revenue

Bonds,

Peninsula

Regional

Medical

Center

Issue,

Refunding

Series

2015,

5.000%,

7/01/45,

(Pre-refunded

7/01/24)

7/24

at

100.00

1,501,196

Prince

George's

County

Revenue

Authority,

Maryland,

Special

Obligation

Bonds,

Suitland-Naylor

Road

Project,

Series

2016

:

2,000

(c)

4.750%,

7/01/36

1/26

at

100.00

2,004,911

2,300

(c)

5.000%,

7/01/46

1/26

at

100.00

2,238,027

Rockville

Mayor

and

Council,

Maryland,

Economic

Development

Revenue

Bonds,

Series

2017B

:

1,335

4.250%,

11/01/37

11/24

at

103.00

1,188,012

1,250

4.500%,

11/01/43

11/24

at

103.00

1,090,796

2,650

5.000%,

11/01/47

11/24

at

103.00

2,392,419

Total

Maryland

55,562,195

Massachusetts

-

2.9%

(1.7%

of

Total

Investments)

Massachusetts

Development

Finance

Agency

Revenue

Bonds,

Lawrence

General

Hospital

Issue,

Series

2014A

:

2,245

5.250%,

7/01/34

7/24

at

100.00

2,064,624

6,195

5.500%,

7/01/44

7/24

at

100.00

5,546,555

Massachusetts

Development

Finance

Agency

Revenue

Refunding

Bonds,

NewBridge

on

the

Charles,

Inc.

Issue,

Series

2017

:

8,200

(c)

4.125%,

10/01/42

5/24

at

104.00

7,379,282

3,000

(c)

5.000%,

10/01/57

5/24

at

104.00

2,900,625

Massachusetts

Development

Finance

Agency,

Revenue

Bonds,

Emerson

College,

Series

2015

:

1,000

4.500%,

1/01/45

1/25

at

100.00

926,580

2,085

5.000%,

1/01/45

1/25

at

100.00

2,085,164

4,035

Massachusetts

Development

Finance

Agency,

Revenue

Bonds,

Emmanuel

College,

Series

2016A,

4.000%,

10/01/46

10/26

at

100.00

3,408,763

900

(c)

Massachusetts

Development

Finance

Agency,

Revenue

Bonds,

Milford

Regional

Medical

Center

Issue,

Series

2020G,

5.000%,

7/15/46

7/30

at

100.00

837,404

6,000

Massachusetts

Development

Finance

Authority,

Revenue

Bonds,

WGBH

Educational

Foundation,

Series

2002A,

5.750%,

1/01/42

-

AMBAC

Insured

No

Opt.

Call

7,204,265

7,405

(f)

Massachusetts

Health

and

Educational

Facilities

Authority,

Revenue

Bonds,

Massachusetts

Institute

of

Technology,

Series

2002K,

5.500%,

7/01/32,

(UB)

No

Opt.

Call

8,943,765

2,785

Massachusetts

Housing

Finance

Agency,

Housing

Bonds,

Series

2014D,

3.875%,

12/01/39

6/24

at

100.00

2,597,911

Massachusetts

Housing

Finance

Agency,

Housing

Bonds,

Sustainability

Green

Series

2021A-1

:

3,340

2.375%,

12/01/46

6/30

at

100.00

2,120,929

41

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Massachusetts

(continued)

$

3,600

2.450%,

12/01/51

6/30

at

100.00

$

2,131,493

8,310

2.550%,

12/01/56

6/30

at

100.00

4,903,651

4,500

Massachusetts

Housing

Finance

Agency,

Single

Family

Housing

Revenue

Bonds,

Social

Series

2020-220,

2.300%,

12/01/44

6/30

at

100.00

2,989,857

3,000

Massachusetts

Housing

Finance

Agency,

Single

Family

Housing

Revenue

Bonds,

Social

Series

2023-227,

4.900%,

12/01/48

6/32

at

100.00

3,027,997

Massachusetts

Housing

Finance

Agency,

Single

Family

Housing

Revenue

Bonds,

Social

Series

2024-234

:

2,220

4.700%,

12/01/49,

(WI/DD)

6/33

at

100.00

2,226,582

385

4.750%,

12/01/54,

(WI/DD)

6/33

at

100.00

386,048

3,345

Massachusetts

State,

General

Obligation

Bonds,

Consolidated

Loan,

Series

2021B,

2.000%,

4/01/50

4/31

at

100.00

1,933,999

7,900

Massachusetts

State,

General

Obligation

Bonds,

Consolidated

Loan,

Series

2024A,

5.000%,

1/01/49

1/34

at

100.00

8,480,459

10,000

Massachusetts

State,

Transportation

Fund

Revenue

Bonds,

Rail

Enhancement

Program,

Green

Series

2023A,

5.000%,

6/01/53

6/33

at

100.00

10,658,791

140

Massachusetts

Water

Pollution

Abatement

Trust,

Revenue

Bonds,

MWRA

Loan

Program,

Subordinate

Series

1999A,

5.750%,

8/01/29

5/24

at

100.00

141,389

Total

Massachusetts

82,896,133

Michigan

-

2.6%

(1.5%

of

Total

Investments)

4,120

Detroit

City

School

District,

Wayne

County,

Michigan,

Unlimited

Tax

School

Building

and

Site

Improvement

Bonds,

Series

2001A,

6.000%,

5/01/29

-

AGM

Insured,

(UB)

No

Opt.

Call

4,381,661

1,565

Detroit

Downtown

Development

Authority,

Michigan,

Tax

Increment

Revenue

Bonds,

Catalyst

Development

Project,

Series

2018A,

5.000%,

7/01/48

-

AGM

Insured

7/24

at

100.00

1,524,109

10,880

Lansing

Board

of

Water

and

Light,

Michigan,

Utility

System

Revenue

Bonds,

Refunding

Series

2024A,

5.000%,

7/01/54

7/34

at

100.00

11,609,751

Michigan

Finance

Authority,

Hospital

Revenue

Bonds,

Sparrow

Obligated

Group,

Refunding

Series

2015

:

4,495

(e)

4.000%,

11/15/35,

(Pre-refunded

5/15/25)

5/25

at

100.00

4,509,793

2,410

(e)

4.000%,

11/15/36,

(Pre-refunded

5/15/25)

5/25

at

100.00

2,417,931

Michigan

Finance

Authority,

Michigan,

Revenue

Bonds,

Trinity

Health

Credit

Group,

Refunding

Series

2016MI

:

3,595

5.000%,

12/01/45

6/26

at

100.00

3,637,938

145

(e)

5.000%,

12/01/45,

(Pre-refunded

6/01/26)

6/26

at

100.00

149,855

2,705

Michigan

Finance

Authority,

Tobacco

Settlement

Asset-

Backed

Bonds,

2006

Sold

Tobacco

Receipts

Senior

Current

Interest

Series

2020A-2,

5.000%,

6/01/40

12/30

at

100.00

2,814,004

1,000

Michigan

Finance

Authority,

Tobacco

Settlement

Asset-

Backed

Bonds,

2007

Sold

Tobacco

Receipts,

Senior

Current

Interest

Series

2020A-CL-1,

4.000%,

6/01/49

12/30

at

100.00

893,415

5,000

Michigan

Housing

Development

Authority,

Single

Family

Mortgage

Revenue

Bonds,

Series

2023B,

4.800%,

12/01/43

12/32

at

100.00

5,080,125

Michigan

Housing

Development

Authority,

Single

Family

Mortgage

Revenue

Bonds,

Social

Series

2021A

:

21,675

2.350%,

12/01/46

12/30

at

100.00

14,175,730

8,280

2.500%,

6/01/52

12/30

at

100.00

5,369,628

10,000

Michigan

State

Building

Authority,

Revenue

Bonds,

Facilities

Program,

Refunding

Series

2020-I,

2.625%,

10/15/56

10/31

at

100.00

6,197,130

5,080

Michigan

State

Building

Authority,

Revenue

Bonds,

Facilities

Program,

Refunding

Series

2023II,

4.000%,

10/15/47

10/33

at

100.00

4,848,441

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

42

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Michigan

(continued)

Wayne

County

Airport

Authority,

Michigan,

Revenue

Bonds,

Detroit

Metropolitan

Wayne

County

Airport,

Series

2015D

:

$

3,550

5.000%,

12/01/40

12/25

at

100.00

$

3,586,956

2,730

5.000%,

12/01/45

12/25

at

100.00

2,747,713

Total

Michigan

73,944,180

Minnesota

-

2.0%

(1.2%

of

Total

Investments)

Baytown

Township,

Minnesota

Charter

School

Lease

Revenue

Bonds,

Saint

Croix

Preparatory

Academy,

Refunding

Series

2016A

:

155

4.000%,

8/01/36

8/26

at

100.00

141,187

440

4.000%,

8/01/41

8/26

at

100.00

374,051

1,745

Brooklyn

Park,

Minnesota,

Charter

School

Lease

Revenue

Bonds,

Prairie

Seeds

Academy

Project,

Refunding

Series

2015A,

5.000%,

3/01/34

3/25

at

100.00

1,674,174

1,720

Deephaven,

Minnesota,

Charter

School

Lease

Revenue

Bonds,

Eagle

Ridge

Academy

Project,

Series

2015A,

5.500%,

7/01/50

7/25

at

100.00

1,720,433

Duluth

Economic

Development

Authority,

Minnesota,

Health

Care

Facilities

Revenue

Bonds,

Essentia

Health

Obligated

Group,

Series

2018A

:

8,520

4.250%,

2/15/43

2/28

at

100.00

8,116,304

24,760

4.250%,

2/15/48

2/28

at

100.00

23,196,659

Minneapolis,

Minnesota,

Charter

School

Lease

Revenue

Bonds,

Cyber

Village

Academy

Project,

Series

2022A

:

340

5.250%,

6/01/42

6/32

at

100.00

315,259

215

5.500%,

6/01/57

6/32

at

100.00

193,657

1,400

Minneapolis,

Minnesota,

Charter

School

Lease

Revenue

Bonds,

Hiawatha

Academies

Project,

Series

2022A,

5.500%,

7/01/52

7/32

at

100.00

1,314,301

1,000

Minneapolis-St.

Paul

Metropolitan

Airports

Commission,

Minnesota,

Airport

Revenue

Bonds,

Subordinate

Lien

Series

2022A,

4.250%,

1/01/52

1/32

at

100.00

957,177

2,005

Minnesota

Agricultural

and

Economic

Development

Board,

Health

Care

Facilities

Revenue

Bonds,

Essentia

Health

Obligated

Group,

Series

2024A,

4.000%,

1/01/49

1/34

at

100.00

1,853,204

2,225

Minnesota

Housing

Finance

Agency,

Residential

Housing

Finance

Bonds,

Series

2020E,

2.700%,

7/01/44

7/29

at

100.00

1,622,824

Minnesota

Housing

Finance

Agency,

Residential

Housing

Finance

Bonds,

Series

2020I

:

2,320

2.150%,

7/01/45

1/30

at

100.00

1,464,660

3,625

2.200%,

1/01/51

1/30

at

100.00

2,182,669

5,585

Minnesota

Housing

Finance

Agency,

Residential

Housing

Finance

Bonds,

Series

2021H,

2.550%,

1/01/46

1/31

at

100.00

3,864,985

Saint

Cloud,

Minnesota,

Charter

School

Lease

Revenue

Bonds,

Stride

Academy

Project,

Series

2016A

:

405

5.000%,

4/01/36

4/26

at

100.00

366,048

605

5.000%,

4/01/46

4/26

at

100.00

490,051

1,395

Saint

Paul

Housing

and

Redevelopment

Authority,

Minnesota,

Health

Care

Facility

Revenue

Bonds,

HealthPartners

Obligated

Group,

Refunding

Series

2015A,

4.000%,

7/01/35

7/25

at

100.00

1,377,463

60

Saint

Paul

Housing

and

Redevelopment

Authority,

Minnesota,

Multifamily

Housing

Revenue

Bonds,

2700

University

at

Westgate

Station,

Series

2015B,

4.250%,

4/01/25

5/24

at

100.00

59,643

St.

Paul

Housing

and

Redevelopment

Authority,

Minnesota,

Hospital

Revenue

Bonds,

HealthEast

Inc.,

Series

2015A

:

2,785

(e)

5.000%,

11/15/40,

(Pre-refunded

11/15/25)

11/25

at

100.00

2,839,462

3,190

(e)

5.000%,

11/15/44,

(Pre-refunded

11/15/25)

11/25

at

100.00

3,252,382

Total

Minnesota

57,376,593

43

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Mississippi

-

0.8%

(0.5%

of

Total

Investments)

$

3,900

Mississippi

Business

Finance

Corporation,

Revenue

Bonds,

System

Energy

Resources,

Inc.

Project,

Refunding

Series

2021,

2.375%,

6/01/44

6/26

at

100.00

$

2,349,956

1,905

(e)

Mississippi

Development

Bank,

Special

Obligation

Bonds,

Gulfport

Water

and

Sewer

System

Project,

Series

2005,

5.250%,

7/01/24

-

AGM

Insured,

(ETM)

No

Opt.

Call

1,908,862

1,000

Mississippi

Home

Corporation,

Single

Family

Mortgage

Revenue

Bonds,

Series

2021A,

2.125%,

12/01/44

6/30

at

100.00

637,130

13,000

(f)

Mississippi

Home

Corporation,

Single

Family

Mortgage

Revenue

Bonds,

Series

2023C,

4.650%,

12/01/48,

(UB)

6/32

at

100.00

13,061,346

4,250

Mississippi

Home

Corporation,

Single

Family

Mortgage

Revenue

Bonds,

Series

2024A,

4.550%,

12/01/49

12/32

at

100.00

4,210,523

Total

Mississippi

22,167,817

Missouri

-

2.0%

(1.2%

of

Total

Investments)

800

Chesterfield

Valley

Transportation

Development

District,

Missouri,

Transportation

Sales

Tax

Revenue

Bonds,

Series

2015,

3.625%,

5/15/31

5/24

at

100.00

790,689

2,000

Jackson

County,

Missouri,

Special

Obligation

Bonds,

Series

2023A,

4.375%,

12/01/58

12/33

at

100.00

1,928,291

Kansas

City

Industrial

Development

Authority,

Missouri,

Sales

Tax

Revenue

Bonds,

Ward

Parkway

Center

Community

Improvement

District,

Senior

Refunding

&

Improvement

Series

2016

:

400

(c)

5.000%,

4/01/36

4/26

at

100.00

378,411

1,520

(c)

5.000%,

4/01/46

4/26

at

100.00

1,330,120

15,000

Kansas

City

Municipal

Assistance

Corporation,

Missouri,

Leasehold

Revenue

Bonds,

Improvement

Series

2004B-1,

0.000%,

4/15/28

-

AMBAC

Insured

No

Opt.

Call

12,994,852

4,345

Kirkwood

Industrial

Development

Authority,

Missouri,

Retirement

Community

Revenue

Bonds,

Aberdeen

Heights

Project,

Refunding

Series

2017A,

5.250%,

5/15/50

5/27

at

100.00

3,444,071

Liberty,

Missouri,

Special

Obligation

Tax

Increment

and

Special

Districts

Bonds,

Liberty

Commons

Project,

Series

2015A

:

1,575

(c)

5.750%,

6/01/35

6/25

at

100.00

1,476,608

1,055

(c)

6.000%,

6/01/46

6/25

at

100.00

955,604

1,655

Missouri

Health

and

Education

Facilities

Authority,

Health

Facilities

Revenue

Bonds,

Saint

Luke's

Health

System,

Inc.,

Series

2018A,

4.000%,

11/15/48

5/28

at

100.00

1,573,505

5,465

Missouri

Health

and

Educational

Facilities

Authority,

Health

Facilities

Revenue

Bonds,

Mercy

Health,

Series

2020,

4.000%,

6/01/53

6/30

at

100.00

5,028,935

1,000

Missouri

Health

and

Educational

Facilities

Authority,

Health

Facilities

Revenue

Bonds,

Mercy

Health,

Series

2023,

5.000%,

12/01/52

12/33

at

100.00

1,047,718

15

Missouri

Health

and

Educational

Facilities

Authority,

Health

Facilities

Revenue

Bonds,

Mosaic

Health

System,

Series

2019A,

4.000%,

2/15/44

2/29

at

100.00

14,396

1,255

Missouri

Housing

Development

Commission,

Single

Family

Mortgage

Revenue

Bonds,

First

Place

Homeownership

Loan

Program,

Series

2023C,

4.950%,

11/01/48

5/32

at

100.00

1,271,012

3,470

Missouri

Housing

Development

Commission,

Single

Family

Mortgage

Revenue

Bonds,

First

Place

Homeownership

Loan

Program,

Series

2023E,

5.150%,

11/01/53

11/32

at

100.00

3,543,622

Missouri

Housing

Development

Commission,

Single

Family

Mortgage

Revenue

Bonds,

First

Place

Homeownership

Loan

Program,

Series

2024A

:

1,605

4.600%,

11/01/49

5/33

at

100.00

1,592,614

270

4.700%,

11/01/54

5/33

at

100.00

268,593

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

44

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Missouri

(continued)

$

405

Saint

Louis

County

Industrial

Development

Authority,

Missouri,

Revenue

Bonds,

Friendship

Village

of

Sunset

Hills,

Series

2013A,

5.875%,

9/01/43

5/24

at

100.00

$

405,244

Saint

Louis

County

Industrial

Development

Authority,

Missouri,

Revenue

Bonds,

Saint

Andrew's

Resources

for

Seniors,

Series

2015A

:

1,650

5.000%,

12/01/35

12/25

at

100.00

1,578,585

455

5.125%,

12/01/45

12/25

at

100.00

401,639

4,125

Saint

Louis,

Missouri,

Airport

Revenue

Bonds,

Lambert-St.

Louis

International

Airport,

Series

2005,

5.500%,

7/01/29

-

NPFG

Insured

No

Opt.

Call

4,586,741

15,350

Springfield

Public

Building

Corporation,

Missouri,

Lease

Revenue

Bonds,

Jordan

Valley

Park

Projects,

Series

2000A,

0.000%,

6/01/30

-

AMBAC

Insured

No

Opt.

Call

11,625,587

Total

Missouri

56,236,837

Montana

-

0.4%

(0.2%

of

Total

Investments)

Kalispell,

Montana,

Housing

and

Healthcare

Facilities

Revenue

Bonds,

Immanuel

Lutheran

Corporation,

Series

2017A

:

1,175

5.250%,

5/15/37

5/25

at

102.00

1,058,633

375

5.250%,

5/15/47

5/25

at

102.00

307,079

Montana

Board

of

Housing,

Single

Family

Mortgage

Bonds,

Series

2023A

:

3,090

4.550%,

12/01/48

12/32

at

100.00

3,081,302

2,250

4.700%,

6/01/53

12/32

at

100.00

2,248,442

2,000

Montana

Board

of

Housing,

Single

Family

Mortgage

Bonds,

Series

2023B,

4.875%,

12/01/48

12/32

at

100.00

2,018,926

Montana

Board

of

Housing,

Single

Family

Mortgage

Bonds,

Series

2023C

:

2,200

4.600%,

12/01/43

12/32

at

100.00

2,221,435

1,000

4.850%,

12/01/48

12/32

at

100.00

1,009,014

Total

Montana

11,944,831

Nebraska

-

1.2%

(0.7%

of

Total

Investments)

Douglas

County

Hospital

Authority

3,

Nebraska,

Health

Facilities

Revenue

Bonds,

Nebraska

Methodist

Health

System,

Refunding

Series

2015

:

2,125

4.125%,

11/01/36

11/25

at

100.00

2,132,444

1,765

5.000%,

11/01/45

11/25

at

100.00

1,779,220

3,865

5.000%,

11/01/48

11/25

at

100.00

3,888,988

7,825

Nebraska

Investment

Finance

Authority,

Single

Family

Housing

Revenue

Bonds,

Series

2020A,

2.700%,

9/01/43

3/29

at

100.00

5,884,004

Nebraska

Investment

Finance

Authority,

Single

Family

Housing

Revenue

Bonds,

Series

2023A

:

5,000

(f)

4.550%,

9/01/48,

(UB)

3/32

at

100.00

4,977,071

5,000

(f)

4.600%,

9/01/53,

(UB)

3/32

at

100.00

4,874,570

3,250

Nebraska

Investment

Finance

Authority,

Single

Family

Housing

Revenue

Bonds,

Social

Series

2023C,

4.650%,

9/01/48

9/32

at

100.00

3,265,180

6,800

Scotts

Bluff

County

Hospital

Authority

1,

Nebraska,

Hospital

Revenue

Bonds,

Regional

West

Medical

Center

Project,

Refunding

&

Improvement

Series

2016A,

5.250%,

2/01/37

2/27

at

100.00

6,493,877

Total

Nebraska

33,295,354

Nevada

-

1.1%

(0.6%

of

Total

Investments)

410

(c)

Director

of

the

State

of

Nevada

Department

of

Business

and

Industry,

Charter

School

Lease

Revenue

Bonds,

Somerset

Academy,

Series

2018A,

5.000%,

12/15/38

12/25

at

100.00

404,541

Henderson,

Nevada,

Local

Improvement

Bonds,

Local

Improvement

District

T-21

Black

Mountain

Ranch,

Series

2022

:

740

3.500%,

9/01/45

9/31

at

100.00

533,363

495

4.000%,

9/01/51

9/31

at

100.00

381,986

45

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Nevada

(continued)

$

20,270

Las

Vegas

Convention

and

Visitors

Authority,

Nevada,

Convention

Center

Expansion

Revenue

Bonds,

Series

2018B,

4.000%,

7/01/49

7/28

at

100.00

$

19,051,566

2,150

Las

Vegas

Convention

and

Visitors

Authority,

Nevada,

Revenue

Bonds,

Refunding

Series

2017B,

4.000%,

7/01/36

7/27

at

100.00

2,168,814

875

(c)

Las

Vegas,

Nevada,

Sales

Tax

Increment

Revenue

Bonds,

Symphony

Park

Tourism

Improvement

District,

Series

2016,

4.375%,

6/15/35

5/24

at

100.00

844,282

500

Neveda

State

Director

of

the

Department

of

Business

and

Industry,

Charter

School

Revenue

Bonds,

Doral

Academy

of

Nevada,

Series

2017A,

5.000%,

7/15/37

7/25

at

100.00

500,420

3,950

Reno,

Nevada,

Subordinate

Lien

Sales

Tax

Revenue

Refunding

Bonds,

ReTrac-Reno

Transporation

Rail

Access

Corridor

Project,

Series

2018A,

4.000%,

6/01/43

12/28

at

100.00

3,701,939

3,000

(c)

Reno,

Nevada,

Subordinate

Lien

Sales

Tax

Revenue

Refunding

Capital

Appreciation

Bonds,

ReTrac-Reno

Transporation

Rail

Access

Corridor

Project,

Series

2018C,

0.000%,

7/01/58

7/38

at

31.26

381,430

3,210

Tahoe-Douglas

Visitors

Authority,

Nevada,

Stateline

Revenue

Bonds,

Series

2020,

5.000%,

7/01/51

7/30

at

100.00

3,161,715

Total

Nevada

31,130,056

New

Hampshire

-

1.3%

(0.8%

of

Total

Investments)

11,830

National

Finance

Authority,

New

Hampshire,

Hospital

Facilities

Revenue

Bonds,

Saint

Elizabeth

Medical

Center,

Inc.,

Series

2021A,

4.000%,

5/01/51

5/31

at

100.00

10,837,304

11,812

National

Finance

Authority,

New

Hampshire,

Municipal

Certificates

Series

2022-1

Class

A,

4.375%,

9/20/36

No

Opt.

Call

11,401,942

5,000

(c)

National

Finance

Authority,

New

Hampshire,

Resource

Recovery

Revenue

Bonds,

Covanta

Project,

Refunding

Series

2018B,

4.625%,

11/01/42

5/24

at

100.00

4,474,712

5,630

(c)

National

Finance

Authority,

New

Hampshire,

Resource

Recovery

Revenue

Bonds,

Covanta

Project,

Refunding

Series

2020A,

3.625%,

7/01/43,

(Mandatory

Put

7/02/40)

7/25

at

100.00

4,436,713

500

New

Hampshire

Health

and

Education

Facilities

Authority,

Revenue

Bonds,

Kendal

at

Hanover,

Series

2016,

5.000%,

10/01/40

10/26

at

100.00

503,138

2,350

New

Hampshire

Housing

Finance

Authority,

Single

Family

Mortgage

Acquisition

Bonds,

Social

Series

2023D,

5.125%,

7/01/53

7/32

at

100.00

2,394,183

4,000

New

Hampshire

Housing

Finance

Authority,

Single

Family

Mortgage

Acquisition

Bonds,

Social

Series

2024A,

4.650%,

7/01/49

1/33

at

100.00

3,998,593

Total

New

Hampshire

38,046,585

New

Jersey

-

5.8%

(3.5%

of

Total

Investments)

New

Jersey

Economic

Development

Authority,

School

Facilities

Construction

Bonds,

Refunding

Series

2016BBB

:

34,310

(e)

5.500%,

6/15/29,

(Pre-refunded

12/15/26)

12/26

at

100.00

36,325,459

2,110

(e)

5.500%,

6/15/30,

(Pre-refunded

12/15/26)

12/26

at

100.00

2,233,947

New

Jersey

Economic

Development

Authority,

School

Facilities

Construction

Bonds,

Series

2005N-1

:

6,835

5.500%,

9/01/24

-

AMBAC

Insured

No

Opt.

Call

6,864,658

5,045

5.500%,

9/01/28

-

NPFG

Insured

No

Opt.

Call

5,489,722

New

Jersey

Economic

Development

Authority,

School

Facilities

Construction

Bonds,

Series

2015WW

:

11,335

(e),(f)

5.250%,

6/15/40,

(Pre-refunded

6/15/25)

6/25

at

100.00

11,560,913

655

(e)

5.250%,

6/15/40,

(Pre-refunded

6/15/25)

6/25

at

100.00

668,055

2,305

New

Jersey

Health

Care

Facilities

Financing

Authority,

Revenue

Bonds,

Barnabas

Health,

Refunding

Series

2014A,

5.000%,

7/01/44

7/24

at

100.00

2,306,391

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

46

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

New

Jersey

(continued)

$

2,050

New

Jersey

Transportation

Trust

Fund

Authority,

Transportation

System

Bonds,

Capital

Appreciation

Series

2010A,

0.000%,

12/15/26

No

Opt.

Call

$

1,859,521

20,000

New

Jersey

Transportation

Trust

Fund

Authority,

Transportation

System

Bonds,

Refunding

Series

2006C,

0.000%,

12/15/33

-

AGM

Insured

No

Opt.

Call

14,052,952

10,970

New

Jersey

Transportation

Trust

Fund

Authority,

Transportation

System

Bonds,

Series

2014AA,

5.000%,

6/15/44

6/24

at

100.00

10,972,463

New

Jersey

Transportation

Trust

Fund

Authority,

Transportation

System

Bonds,

Series

2015AA

:

13,690

4.750%,

6/15/38

6/25

at

100.00

13,793,200

7,935

5.000%,

6/15/45

6/25

at

100.00

7,980,000

5,000

New

Jersey

Transportation

Trust

Fund

Authority,

Transportation

System

Bonds,

Series

2019AA,

5.250%,

6/15/43

12/28

at

100.00

5,194,723

33,200

New

Jersey

Turnpike

Authority,

Revenue

Bonds,

Refunding

Series

2005D-

1,

5.250%,

1/01/26

-

AGM

Insured

No

Opt.

Call

34,070,245

5,000

South

Jersey

Transportation

Authority,

New

Jersey,

Transportation

System

Revenue

Bonds,

Series

2020A,

4.000%,

11/01/50

11/30

at

100.00

4,450,974

Tobacco

Settlement

Financing

Corporation,

New

Jersey,

Tobacco

Settlement

Asset-Backed

Bonds,

Series

2018A

:

1,420

5.000%,

6/01/46

6/28

at

100.00

1,451,988

1,580

5.250%,

6/01/46

6/28

at

100.00

1,636,170

3,180

Tobacco

Settlement

Financing

Corporation,

New

Jersey,

Tobacco

Settlement

Asset-Backed

Bonds,

Series

2018B,

5.000%,

6/01/46

6/28

at

100.00

3,211,364

1,330

Washington

Township

Board

of

Education,

Mercer

County,

New

Jersey,

General

Obligation

Bonds,

Series

2005,

5.250%,

1/01/26

-

AGM

Insured

No

Opt.

Call

1,361,678

Total

New

Jersey

165,484,423

New

Mexico

-

0.2%

(0.1%

of

Total

Investments)

3,345

New

Mexico

Mortgage

Finance

Authority,

Single

Family

Mortgage

Program

Bonds,

Class

1

Series

2021C,

2.250%,

7/01/46

7/30

at

100.00

2,143,312

1,055

New

Mexico

Mortgage

Finance

Authority,

Single

Family

Mortgage

Program

Bonds,

Class

1

Series

2023C,

4.650%,

9/01/48

9/32

at

100.00

1,059,928

Santa

Fe,

New

Mexico,

Retirement

Facilities

Revenue

Bonds,

EL

Castillo

Retirement

Residences

Project,

Series

2019A

:

670

5.000%,

5/15/44

5/26

at

103.00

618,146

1,200

5.000%,

5/15/49

5/26

at

103.00

1,065,336

1,000

(c)

Winrock

Town

Center

Tax

Increment

Development

District

1,

Albuquerque,

New

Mexico,

Gross

Receipts

Tax

Increment

Bonds,

Senior

Lien

Series

2022,

4.250%,

5/01/40

5/29

at

103.00

906,840

Total

New

Mexico

5,793,562

New

York

-

9.7%

(5.8%

of

Total

Investments)

Babylon

Local

Development

Corporation

II,

New

York,

Education

Revenue

Bonds,

The

Academy

Charter

School

Project,

Series

2023A

:

1,000

6.400%,

2/01/43

2/33

at

100.00

1,006,523

2,270

6.650%,

2/01/53

2/33

at

100.00

2,287,633

10,400

Battery

Park

City

Authority,

New

York,

Revenue

Bonds,

Senior

Sustainability

Series

2023A,

5.000%,

11/01/48

11/33

at

100.00

11,308,929

14,325

(c)

Build

NYC

Resource

Corporation,

New

York,

Revenue

Bonds,

Albert

Einstein

College

of

Medicine,

Inc,

Series

2015,

5.500%,

9/01/45

9/25

at

100.00

14,325,620

1,350

(c)

Build

NYC

Resource

Corporation,

New

York,

Revenue

Bonds,

Albert

Einstein

College

of

Medicine,

Inc,

Series

2023,

7.250%,

6/01/55

12/30

at

100.00

1,430,775

9,320

(c)

Build

NYC

Resource

Corporation,

New

York,

Revenue

Bonds,

Family

Life

Academy

Charter

School,

Series

2020A-1,

5.500%,

6/01/55

12/30

at

100.00

8,331,280

47

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

New

York

(continued)

$

7,390

(c)

Build

NYC

Resource

Corporation,

New

York,

Revenue

Bonds,

Family

Life

Academy

Charter

School,

Series

2020B-1,

5.000%,

6/01/55

12/30

at

100.00

$

6,103,790

14,215

(f)

Dormitory

Authority

of

the

State

of

New

York,

General

Revenue

Bonds,

Northwell

Health

Obligated

Group,

Series

2022A,

4.250%,

5/01/52,

(UB)

5/32

at

100.00

13,646,827

785

Dormitory

Authority

of

the

State

of

New

York,

Insured

Revenue

Bonds,

Mount

Sinai

School

of

Medicine,

Series

1994A,

5.150%,

7/01/24

-

NPFG

Insured

No

Opt.

Call

785,684

9,700

Dormitory

Authority

of

the

State

of

New

York,

Revenue

Bonds,

Columbia

University,

Series

2017A,

5.000%,

10/01/47

No

Opt.

Call

11,126,962

4,070

Dormitory

Authority

of

the

State

of

New

York,

Revenue

Bonds,

Icahn

School

of

Medicine

at

Mount

Sinai,

Refunding

Series

2015A,

5.000%,

7/01/45

7/25

at

100.00

4,080,934

Dormitory

Authority

of

the

State

of

New

York,

Revenue

Bonds,

Orange

Regional

Medical

Center

Obligated

Group,

Series

2015

:

2,700

(c)

5.000%,

12/01/40

6/25

at

100.00

2,554,472

5,600

(c)

5.000%,

12/01/45

6/25

at

100.00

5,066,699

2,095

Genesee

County

Funding

Corporation,

New

York,

Revenue

Bonds,

Rochester

Regional

Health

Project,

Series

2022A,

5.250%,

12/01/52

12/32

at

100.00

2,138,048

2,120

Hempstead

Town

Local

Development

Corporation,

New

York,

Education

Revenue

Bonds,

The

Academy

Charter

School

Project,

Refunding

Series

2020B,

5.570%,

2/01/41

2/30

at

100.00

1,984,751

2,695

Hempstead

Town

Local

Development

Corporation,

New

York,

Education

Revenue

Bonds,

The

Academy

Charter

School

Project,

Series

2017A,

6.240%,

2/01/47

2/27

at

100.00

2,637,056

2,965

Hempstead

Town

Local

Development

Corporation,

New

York,

Education

Revenue

Bonds,

The

Academy

Charter

School

Project,

Series

2018A,

6.760%,

2/01/48

2/28

at

100.00

2,998,693

Hempstead

Town

Local

Development

Corporation,

New

York,

Education

Revenue

Bonds,

The

Academy

Charter

School

Project,

Series

2020A

:

400

5.530%,

2/01/40

2/30

at

100.00

375,939

1,270

5.730%,

2/01/50

2/30

at

100.00

1,152,792

Hempstead

Town

Local

Development

Corporation,

New

York,

Education

Revenue

Bonds,

The

Academy

Charter

School

Project,

Series

2021A

:

1,210

4.450%,

2/01/41

2/30

at

100.00

981,399

2,380

4.600%,

2/01/51

2/30

at

100.00

1,787,960

Metropolitan

Transportation

Authority,

New

York,

Transportation

Revenue

Bonds,

Green

Climate

Bond

Certified

Series

2020C-1

:

2,790

5.000%,

11/15/50

5/30

at

100.00

2,882,345

3,155

5.250%,

11/15/55

5/30

at

100.00

3,279,249

7,660

Metropolitan

Transportation

Authority,

New

York,

Transportation

Revenue

Bonds,

Green

Climate

Bond

Certified

Series

2020D-2,

4.000%,

11/15/47

11/30

at

100.00

7,023,872

5,000

Metropolitan

Transportation

Authority,

New

York,

Transportation

Revenue

Bonds,

Green

Climate

Bond

Certified

Series

2020D-3,

4.000%,

11/15/49

11/30

at

100.00

4,534,550

14,915

Metropolitan

Transportation

Authority,

New

York,

Transportation

Revenue

Bonds,

Green

Refunding

Series

2024A,

4.000%,

11/15/48

-

BAM

Insured

5/34

at

100.00

13,876,613

2,210

Metropolitan

Transportation

Authority,

New

York,

Transportation

Revenue

Bonds,

Refunding

Green

Climate

Certified

Series

2017C-1,

5.000%,

11/15/24

No

Opt.

Call

2,223,743

7,520

Metropolitan

Transportation

Authority,

New

York,

Transportation

Revenue

Bonds,

Refunding

Green

Climate

Certified

Series

2020E,

4.000%,

11/15/45

11/30

at

100.00

6,998,852

3,585

Monroe

County

Industrial

Development

Corporation,

New

York,

Revenue

Bonds,

Saint

Anns

Community

Project,

Series

2019,

5.000%,

1/01/50

1/26

at

103.00

2,781,231

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

48

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

New

York

(continued)

$

1,000

Nassau

County

Local

Economic

Assistance

Corporation,

New

York,

Revenue

Bonds,

Catholic

Health

Services

of

Long

Island

Obligated

Group

Project,

Series

2014,

5.000%,

7/01/31

7/24

at

100.00

$

1,001,161

20,000

New

York

City

Housing

Development

Corporation,

New

York,  Sustainable

Impact

Revenue

Bonds,

Williamsburg

Housing

Preservation

LP,

Series

2020A,

2.800%,

2/01/50

2/28

at

100.00

13,564,670

5,000

New

York

City

Housing

Development

Corporation,

New

York,

House

Impact

Revenue

Bonds,

Green

Series

2023A,

4.800%,

2/01/53

8/31

at

100.00

5,018,628

10,000

New

York

City

Housing

Development

Corporation,

New

York,

Multifamily

Housing

Revenue

Bonds,

Green

Series

2023B-2,

3.670%,

5/01/54,

(Mandatory

Put

5/07/24)

4/24

at

100.00

10,000,000

11,570

New

York

City

Municipal

Water

Finance

Authority,

New

York,

Water

and

Sewer

System

Second

General

Resolution

Revenue

Bonds,

Fiscal

2016

Series

BB-1,

5.000%,

6/15/46

6/25

at

100.00

11,656,682

10,000

(f)

New

York

City

Municipal

Water

Finance

Authority,

New

York,

Water

and

Sewer

System

Second

General

Resolution

Revenue

Bonds,

Fiscal

2023

Series

DD,

4.125%,

6/15/46,

(UB)

6/33

at

100.00

9,830,155

5,000

New

York

City

Transitional

Finance

Authority,

New

York,

Future

Tax

Secured

Bonds,

Subordinate

Series

2024D-1,

5.000%,

11/01/38

5/34

at

100.00

5,682,507

5

New

York

City,

New

York,

General

Obligation

Bonds,

Fiscal

Series

2005M,

5.000%,

4/01/26

-

FGIC

Insured

5/24

at

100.00

5,005

28,615

(c)

New

York

Liberty

Development

Corporation,

New

York,

Liberty

Revenue

Bonds,

3

World

Trade

Center

Project,

Class

1

Series

2014,

5.000%,

11/15/44

11/24

at

100.00

28,360,618

20,445

New

York

Liberty

Development

Corporation,

New

York,

Liberty

Revenue

Bonds,

7

World

Trade

Center

Project,

Refunding

Green

Series

2022A-CL2,

3.125%,

9/15/50

3/30

at

100.00

15,409,748

2,560

New

York

Liberty

Development

Corporation,

New

York,

Liberty

Revenue

Bonds,

Bank

of

America

Tower

at

One

Bryant

Park

Project,

Second

Priority

Refunding

Series

2019

Class

3,

2.800%,

9/15/69

3/29

at

100.00

2,273,881

3,500

New

York

State

Housing

Finance

Agency,

Affordable

Housing

Revenue

Bonds,

Climate

Bond

Certified/Sustainability

Series

2019P,

3.050%,

11/01/49

5/28

at

100.00

2,573,712

6,500

New

York

State

Mortgage

Agency,

Homeowner

Mortgage

Revenue

Bonds,

Series

211,

3.750%,

10/01/43

4/27

at

100.00

5,861,361

New

York

State

Mortgage

Agency,

Homeowner

Mortgage

Revenue

Bonds,

Series

252

:

2,140

4.550%,

10/01/48

4/33

at

100.00

2,135,636

2,000

4.650%,

10/01/53

4/33

at

100.00

1,990,129

1,000

Triborough

Bridge

and

Tunnel

Authority,

New

York,

General

Revenue

Bonds,

MTA

Bridges

&

Tunnels,

Series

2022A,

4.000%,

11/15/52

11/32

at

100.00

947,261

4,500

Triborough

Bridge

and

Tunnel

Authority,

New

York,

General

Revenue

Bonds,

MTA

Bridges

&

Tunnels,

Series

2023B-1,

5.250%,

11/15/53

11/33

at

100.00

4,870,847

10,060

Triborough

Bridge

and

Tunnel

Authority,

New

York,

Sales

Tax

Revenue

Bonds,

MTA

Bridges

&

Tunnels,

TBTA

Capital

Lockbox-City

Sales

Tax,

Series

2022A,

4.000%,

5/15/57

11/32

at

100.00

9,391,580

7,110

TSASC

Inc.,

New

York,

Tobacco

Asset-Backed

Bonds,

Series

2006,

5.000%,

6/01/48

6/27

at

100.00

6,325,883

Total

New

York

276,612,685

North

Carolina

-

0.4%

(0.3%

of

Total

Investments)

North

Carolina

Housing

Finance

Agency,

Home

Ownership

Revenue

Bonds,

1998

Trust

Agreement

Social

Series

53-A

:

3,980

4.375%,

7/01/44

7/32

at

100.00

3,913,019

49

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

North

Carolina

(continued)

$

5,000

4.550%,

1/01/50

7/32

at

100.00

$

4,924,232

2,070

North

Carolina

Housing

Finance

Agency,

Home

Ownership

Revenue

Bonds,

Series

52-A,

4.900%,

7/01/43

7/32

at

100.00

2,110,043

2,150

North

Carolina

Medical

Care

Commission,

Retirement

Facilities

First

Mortgage

Revenue

Bonds,

Aldersgate

United

Retirement

Community

Inc.,

Refunding

Series

2017A,

5.000%,

7/01/47

7/27

at

100.00

1,666,411

Total

North

Carolina

12,613,705

North

Dakota

-

2.3%

(1.4%

of

Total

Investments)

9,950

Cass

County,

North

Dakota,

Health

Care

Facilities

Revenue

Bonds,

Essential

Health

Obligated

Group,

Series

2018B,

4.250%,

2/15/48

2/28

at

100.00

9,321,759

4,525

Grand

Forks,

North

Dakota,

Health

Care

System

Revenue

Bonds,

Altru

Health

System

Obligated

Group,

Series

2017A,

5.000%,

12/01/42

12/27

at

100.00

4,491,317

Grand

Forks,

North

Dakota,

Health

Care

System

Revenue

Bonds,

Altru

Health

System

Obligated

Group,

Series

2021

:

1,000

3.000%,

12/01/46

-

AGM

Insured

12/31

at

100.00

761,728

5,000

3.000%,

12/01/51

-

AGM

Insured

12/31

at

100.00

3,617,980

1,000

Grand

Forks,

North

Dakota,

Senior

Housing

&

Nursing

Facilities

Revenue

Bonds,

Valley

Homes

and

Services

Obligated

Group,

Series

2017,

5.000%,

12/01/36

12/26

at

100.00

938,555

2,000

Horace,

Cass

County,

North

Dakota,

General

Obligation

Bonds,

Refunding

Improvement

Series

2023A,,

5.000%,

5/01/48

5/31

at

100.00

1,890,404

3,820

North

Dakota

Housing

Finance

Agency,

Home

Mortgage

Finance

Program

Bonds,

Series

2020B,

2.500%,

7/01/44

1/30

at

100.00

2,690,924

980

North

Dakota

Housing

Finance

Agency,

Home

Mortgage

Finance

Program

Bonds,

Social

Series

2022F,

4.250%,

1/01/47

1/32

at

100.00

936,146

1,000

North

Dakota

Housing

Finance

Agency,

Home

Mortgage

Finance

Program

Bonds,

Social

Series

2023A,

4.700%,

7/01/47

7/32

at

100.00

1,006,681

North

Dakota

Housing

Finance

Agency,

Home

Mortgage

Finance

Program

Bonds,

Social

Series

2023D

:

1,500

4.500%,

7/01/43

7/32

at

100.00

1,511,251

560

4.550%,

7/01/48

7/32

at

100.00

558,681

2,750

North

Dakota

Housing

Finance

Agency,

Home

Mortgage

Finance

Program

Bonds,

Social

Series

2023F,

5.100%,

7/01/48

1/33

at

100.00

2,765,021

1,300

North

Dakota

Housing

Finance

Agency,

Home

Mortgage

Finance

Program

Bonds,

Social

Series

2024A,

4.750%,

1/01/52

7/33

at

100.00

1,300,637

Ward

County

Health

Care,

North

Dakota,

Revenue

Bonds,

Trinity

Obligated

Group,

Series

2017C

:

8,300

5.000%,

6/01/38

6/28

at

100.00

7,836,597

1,700

5.000%,

6/01/43

6/28

at

100.00

1,532,937

28,050

5.000%,

6/01/53

6/28

at

100.00

23,563,997

2,501

(d)

Williston,

North

Dakota,

Multifamily

Housing

Revenue

Bonds,

Eagle

Crest

Apartments

LLC

Project,

Series

2013,

7.750%,

9/01/38

5/24

at

100.00

1,250,340

Total

North

Dakota

65,974,955

Ohio

-

8.9%

(5.3%

of

Total

Investments)

2,000

Akron,

Bath

and

Copley

Joint

Township

Hospital

District,

Ohio,

Hospital

Facilities

Revenue

Bonds,

Summa

Health

Obligated

Group,

Refunding

Series

2020,

3.000%,

11/15/40

11/30

at

100.00

1,530,941

50,220

Buckeye

Tobacco

Settlement

Financing

Authority,

Ohio,

Tobacco

Settlement

Asset-Backed

Revenue

Bonds,

Refunding

Senior

Lien

Capital

Appreciation

Series

2020B-3

Class

2,

0.000%,

6/01/57

6/30

at

22.36

4,978,997

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

50

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Ohio

(continued)

Buckeye

Tobacco

Settlement

Financing

Authority,

Ohio,

Tobacco

Settlement

Asset-Backed

Revenue

Bonds,

Refunding

Senior

Lien

Series

2020A-2

Class

1

:

$

53,590

3.000%,

6/01/48

6/30

at

100.00

$

39,224,627

8,680

4.000%,

6/01/48

6/30

at

100.00

7,740,272

30,950

Buckeye

Tobacco

Settlement

Financing

Authority,

Ohio,

Tobacco

Settlement

Asset-Backed

Revenue

Bonds,

Refunding

Senior

Lien

Series

2020B-2

Class

2,

5.000%,

6/01/55

6/30

at

100.00

28,059,939

Centerville,

Ohio

Health

Care

Improvement

Revenue

Bonds,

Graceworks

Lutheran

Services,

Refunding

&

Improvement

Series

2017

:

2,750

5.250%,

11/01/37

11/27

at

100.00

2,690,214

3,200

5.250%,

11/01/47

11/27

at

100.00

2,884,845

4,000

County

of

Lucas,

Ohio,

Hospital

Revenue

Bonds,

ProMedica

Healthcare

Obligated

Group,

Series

2018A,

5.250%,

11/15/48

11/28

at

100.00

3,977,806

37,150

(f)

Cuyahoga

County,

Ohio,

Certificates

of

Participation,

Convention

Hotel

Project,  Series

2014,

4.375%,

12/01/44,

(UB)

6/24

at

100.00

35,792,972

Darke

County,

Ohio,

Hospital

Facilities

Revenue

Bonds,

Wayne

Healthcare

Project,

Series

2019A

:

1,165

4.000%,

9/01/40

9/29

at

100.00

980,512

1,750

4.000%,

9/01/45

9/29

at

100.00

1,373,091

2,000

5.000%,

9/01/49

9/29

at

100.00

1,752,354

1,890

Dublin

City

School

District,

Franklin,

Delaware

and

Union

Counties,

Ohio,

General

Obligation

Bonds,

School

Facilities

Series

2024,

4.000%,

12/01/53

12/33

at

100.00

1,764,311

4,590

Franklin

County

Convention

Facilities

Authority,

Ohio,

Hotel

Project

Revenue

Bonds,

Greater

Columbus

Convention

Center

Hotel

Expansion

Project,

Series

2019,

5.000%,

12/01/51

12/29

at

100.00

4,301,486

4,065

Franklin

County,

Ohio,

Revenue

Bonds,

Trinity

Health

Credit

Group,

Series

2017A,

3.250%,

12/01/42

12/27

at

100.00

3,393,923

Middletown

City

School

District,

Butler

County,

Ohio,

General

Obligation

Bonds,

Refunding

Series

2007

:

4,380

5.250%,

12/01/27

-

AGM

Insured

No

Opt.

Call

4,652,311

6,000

5.250%,

12/01/31

-

AGM

Insured

No

Opt.

Call

6,701,039

12,000

Muskingum

County,

Ohio,

Hospital

Facilities

Revenue

Bonds,

Genesis

HealthCare

System

Obligated

Group

Project,

Series

2013,

5.000%,

2/15/48

5/24

at

100.00

10,767,938

25,880

Ohio

Air

Quality

Development

Authority,

Ohio,

Pollution

Control

Revenue

Bonds,

FirstEnergy

Nuclear

Generation

Project,

Refunding

Series

2009A,

4.750%,

6/01/33

No

Opt.

Call

26,806,973

490

Ohio

Higher

Educational

Facility

Commission,

Senior

Hospital

Parking

Revenue

Bonds,

University

Circle

Incorporated

2020

Project,

Series

2020,

5.000%,

1/15/50

1/30

at

100.00

501,675

4,285

Ohio

Housing

Finance

Agency,

Residential

Mortgage

Revenue

Bonds,

Mortgage-Backed

Securities

Program,

Social

Series

2024A,

4.650%,

9/01/54

9/33

at

100.00

4,234,962

1,270

Ohio

State,

Turnpike

Revenue

Bonds,

Ohio

Turnpike

and

Infrastructutre

Commission

Infrastructure

Projects,

Junior

Lien,

Capital

Appreciation

Series

2013A-3,

5.800%,

2/15/36

2/31

at

100.00

1,473,570

20,505

Ohio

Water

Development

Authority,

Pollution

Control

Revenue

Refunding

Bonds,

FirstEnergy

Nuclear

Generating

Corporation

Project,

Series

2009A,

4.750%,

6/01/33

No

Opt.

Call

21,239,450

20,480

Ohio

Water

Development

Authority,

Pollution

Control

Revenue

Refunding

Bonds,

FirstEnergy

Nuclear

Generating

Corporation

Project,

Series

2010B,

4.750%,

6/01/33,

(Mandatory

Put

6/01/22)

No

Opt.

Call

21,213,555

51

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Ohio

(continued)

$

2,965

Port

of

Greater

Cincinnati

Development

Authority,

Ohio,

Special

Obligation

Tax

Increment

Financing

Revenue

Bonds,

Cooperative

Township

Public

Parking

Project,

Gallery

at

Kenwood,

Senior

Lien

Series

2019A,

5.000%,

11/01/51

11/30

at

100.00

$

2,394,578

1,930

Shaker

Heights

City

School

District,

Ohio,

General

Obligation

Bonds,

School

Facilities

Improvement

Series

2024,

4.375%,

12/15/61

6/34

at

100.00

1,882,098

1,330

Tuscarawas

County

Economic

Development

and

Finance

Alliance,

Ohio,

Higher

Education

Facilities

Revenue

Bonds,

Ashland

University,

Refunding

&

Improvement

Series

2015,

6.000%,

3/01/45

3/25

at

100.00

1,325,170

9,495

Washington

County,

Ohio,

Hospital

Facilities

Revenue

Bonds,

Memorial

Health

System

Obligated

Group,

Series

2022,

6.750%,

12/01/52

12/32

at

100.00

10,221,966

Total

Ohio

253,861,575

Oklahoma

-

1.0%

(0.6%

of

Total

Investments)

Oklahoma

Development

Finance

Authority,

Health

System

Revenue

Bonds,

OU

Medicine

Project,

Series

2018B

:

3,965

5.500%,

8/15/52

8/28

at

100.00

4,032,282

20,510

5.500%,

8/15/57

8/28

at

100.00

20,873,895

Oklahoma

Development

Finance

Authority,

Health

System

Revenue

Bonds,

OU

Medicine

Project,

Taxable

Series

2022

:

1,150

5.500%,

8/15/41

8/32

at

100.00

1,161,451

1,390

5.500%,

8/15/44

8/32

at

100.00

1,389,456

2,340

Tulsa

County

Industrial

Authority,

Oklahoma,

Senior

Living

Community

Revenue

Bonds,

Montereau,

Inc

Project,

Refunding

Series

2017,

5.250%,

11/15/45

11/25

at

102.00

2,295,577

315

University

Oklahoma,

General

Revenue

Bonds,

Refunding

Series

2024A,

4.125%,

7/01/54

-

BAM

Insured

No

Opt.

Call

303,015

Total

Oklahoma

30,055,676

Oregon

-

0.1%

(0.1%

of

Total

Investments)

Clackamas

County

Hospital

Facility

Authority,

Oregon,

Revenue

Bonds,

Rose

Villa

Inc.,

Series

2020A

:

500

5.125%,

11/15/40

11/25

at

102.00

481,899

220

5.250%,

11/15/50

11/25

at

102.00

202,039

315

5.375%,

11/15/55

11/25

at

102.00

290,179

Multnomah

County

Hospital

Facilities

Authority,

Oregon,

Revenue

Bonds,

Mirabella

South

Waterfront,

Refunding

Series

2014A

:

1,000

(e)

5.400%,

10/01/44,

(Pre-refunded

10/01/24)

10/24

at

100.00

1,005,193

800

(e)

5.500%,

10/01/49,

(Pre-refunded

10/01/24)

10/24

at

100.00

804,479

Total

Oregon

2,783,789

Pennsylvania

-

4.7%

(2.8%

of

Total

Investments)

15,595

Allegheny

County

Hospital

Development

Authority,

Pennsylvania,

Revenue

Bonds,

Allegheny

Health

Network

Obligated

Group

Issue,

Series

2018A,

4.000%,

4/01/44

4/28

at

100.00

14,422,615

2,540

(c)

Allentown

Neighborhood

Improvement

Zone

Development

Authority,

Pennsylvania,

Tax

Revenue

Bonds,

City

Center

Refunding

Project,

Series

2017,

5.000%,

5/01/42

5/27

at

100.00

2,506,753

13,235

Beaver

County

Industrial

Development

Authority,

Pennsylvania,

Pollution

Control

Revenue

Bonds,

FirstEnergy

Generation

Project,

Refunding

Series

2006A,

4.750%,

1/01/35,

(Mandatory

Put

7/01/33)

No

Opt.

Call

13,510,509

9,365

Beaver

County

Industrial

Development

Authority,

Pennsylvania,

Pollution

Control

Revenue

Refunding

Bonds,

FirstEnergy

Generation

Project,

Series

2008B,

3.750%,

10/01/47

4/31

at

100.00

7,398,680

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

52

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Pennsylvania

(continued)

$

18,970

Berks

County

Industrial

Development

Authority,

Pennsylvania,

Health

System

Revenue

Bonds,

Tower

Health

Project,

Series

2017,

5.000%,

11/01/50

11/27

at

100.00

$

9,751,215

Bucks

County

Industrial

Development

Authority,

Pennsylvania,

Revenue

Bonds,

School

Lane

Charter

School

Project,

Series

2016

:

2,410

5.125%,

3/15/36

3/27

at

100.00

2,429,078

6,420

5.125%,

3/15/46

3/27

at

100.00

6,070,213

1,000

Butler

County

Hospital

Authority,

Pennsylvania,

Hospital

Revenue

Bonds,

Butler

Health

System

Project,

Series

2015A,

5.000%,

7/01/39

7/25

at

100.00

950,100

9,325

Commonwealth

Financing

Authority,

Pennsylvania,

State

Appropriation

Lease

Bonds,

Master

Settlement,

Series

2018,

4.000%,

6/01/39

-

AGM

Insured

6/28

at

100.00

9,212,058

Cumberland

County

Municipal

Authority,

Pennsylvania,

Revenue

Bonds,

Diakon

Lutheran

Social

Ministries

Project,

Series

2015

:

435

5.000%,

1/01/29

1/25

at

100.00

436,833

395

(e)

5.000%,

1/01/29,

(Pre-refunded

1/01/25)

1/25

at

100.00

397,808

170

(e)

5.000%,

1/01/29,

(Pre-refunded

1/01/25)

1/25

at

100.00

171,209

1,500

Lancaster

County

Hospital

Authority,

Pennsylvania,

Revenue

Bonds,

Landis

Homes

Retirement

Community

Project,

Refunding

Series

2015A,

5.000%,

7/01/45

7/25

at

100.00

1,380,388

1,750

McCandless

Industrial

Development

Authority,

Pennsylvania,

La

Roche

University

Revenue

Bonds,

Series

A

and

B

of

2022,

6.750%,

12/01/46

12/32

at

100.00

1,658,902

Montgomery

County

Industrial

Development

Authority,

Pennsylvania,

Health

System

Revenue

Bonds,

Albert

Einstein

Healthcare

Network

Issue,

Series

2015A

:

11,030

(e)

5.250%,

1/15/45,

(Pre-refunded

1/15/25)

1/25

at

100.00

11,139,477

1,200

(e)

5.250%,

1/15/46,

(Pre-refunded

1/15/25)

1/25

at

100.00

1,211,911

3,500

Pennsylvania

Housing

Finance

Agency,

Single

Family

Mortgage

Revenue

Bonds,

Series

2019-131A,

3.100%,

10/01/44

4/29

at

100.00

2,820,650

3,415

Pennsylvania

Housing

Finance

Agency,

Single

Family

Mortgage

Revenue

Bonds,

Social

Series

2021-135A,

2.500%,

10/01/50

10/30

at

100.00

2,143,242

13,550

Pennsylvania

Turnpike

Commission,

Oil

Franchise

Tax

Revenue

Bonds,

Senior

Series

2018A,

5.250%,

12/01/44

12/28

at

100.00

14,185,850

3,205

Pennsylvania

Turnpike

Commission,

Turnpike

Revenue

Bonds,

Series

2015A-1,

5.000%,

12/01/45

6/25

at

100.00

3,229,299

11,000

Pennsylvania

Turnpike

Commission,

Turnpike

Revenue

Bonds,

Subordinate

Series

2009C,

6.250%,

6/01/33

-

AGM

Insured

6/26

at

100.00

11,676,688

15,000

Pennsylvania

Turnpike

Commission,

Turnpike

Revenue

Bonds,

Subordinate

Series

2015B-1,

5.000%,

12/01/45

12/25

at

100.00

15,153,423

2,675

Pennsylvania

Turnpike

Commission,

Turnpike

Revenue

Bonds,

Subordinate

Series

2019A,

4.000%,

12/01/49

12/29

at

100.00

2,511,926

Total

Pennsylvania

134,368,827

Puerto

Rico

-

7.4%

(4.4%

of

Total

Investments)

4,934

Cofina

Class

2

Trust

Tax-Exempt

Class

2047,

Puerto

Rico.

Unit

Exchanged

From

Cusip

74529JAN5,

0.000%,

8/01/47

No

Opt.

Call

1,445,883

9,761

Cofina

Class

2

Trust

Tax-Exempt

Class

2054,

Puerto

Rico.

Unit

Exchanged

From

Cusip

74529JAP0,

0.000%,

8/01/54

No

Opt.

Call

1,891,280

Puerto

Rico

Aqueduct

and

Sewerage

Authority,

Revenue

Bonds,

Refunding

Senior

Lien

Series

2020A

:

8,000

(c)

5.000%,

7/01/35

7/30

at

100.00

8,408,436

14,625

(c)

5.000%,

7/01/47

7/30

at

100.00

14,817,379

53

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Puerto

Rico

(continued)

Puerto

Rico

Aqueduct

and

Sewerage

Authority,

Revenue

Bonds,

Refunding

Senior

Lien

Series

2021B

:

$

10,090

(c)

5.000%,

7/01/33

7/31

at

100.00

$

10,731,968

5,000

(c)

5.000%,

7/01/37

7/31

at

100.00

5,226,230

7,510

(c)

4.000%,

7/01/42

7/31

at

100.00

7,011,506

8,070

(c)

4.000%,

7/01/47

7/31

at

100.00

7,267,933

145

Puerto

Rico

Public

Finance

Corporation,

Commonwealth

Appropriation

Bonds,

Series

1998A,

5.125%,

6/01/24

-

AMBAC

Insured

No

Opt.

Call

145,108

Puerto

Rico

Sales

Tax

Financing

Corporation,

Sales

Tax

Revenue

Bonds,

Restructured

2018A-1

:

2,000

0.000%,

7/01/29

7/28

at

98.64

1,640,849

49

0.000%,

7/01/33

7/28

at

86.06

33,872

837

4.500%,

7/01/34

7/25

at

100.00

840,253

4,709

4.550%,

7/01/40

7/28

at

100.00

4,715,815

51,297

0.000%,

7/01/46

7/28

at

41.38

16,085,472

26,407

0.000%,

7/01/51

7/28

at

30.01

6,054,964

12,700

4.750%,

7/01/53

7/28

at

100.00

12,426,391

27,303

5.000%,

7/01/58

7/28

at

100.00

27,306,219

723

Puerto

Rico

Sales

Tax

Financing

Corporation,

Sales

Tax

Revenue

Bonds,

Restructured

Cofina

Project

Series

2019B-2,

4.536%,

7/01/53

7/28

at

100.00

683,515

Puerto

Rico

Sales

Tax

Financing

Corporation,

Sales

Tax

Revenue

Bonds,

Taxable

Restructured

Cofina

Project

Series

2019A-2

:

11,484

4.329%,

7/01/40

7/28

at

100.00

11,246,638

7,385

4.329%,

7/01/40

7/28

at

100.00

7,232,360

6,889

4.784%,

7/01/58

7/28

at

100.00

6,756,674

Puerto

Rico,

General

Obligation

Bonds,

Restructured

Series

2022A-1

:

5,761

5.625%,

7/01/29

No

Opt.

Call

6,216,393

3,969

5.750%,

7/01/31

No

Opt.

Call

4,431,732

21,778

0.000%,

7/01/33

7/31

at

89.94

14,289,445

10,302

4.000%,

7/01/33

7/31

at

103.00

10,154,174

8,816

4.000%,

7/01/35

7/31

at

103.00

8,552,580

10,216

4.000%,

7/01/37

7/31

at

103.00

9,790,725

4,295

4.000%,

7/01/41

7/31

at

103.00

3,996,056

1,473

4.000%,

7/01/46

7/31

at

103.00

1,328,128

Total

Puerto

Rico

210,727,978

Rhode

Island

-

2.2%

(1.3%

of

Total

Investments)

3,430

Rhode

Island

Housing

&

Mortgage

Finance

Corporation,

Homeownership

Opportunity

Bond

Program,

2019

Series

71,

3.100%,

10/01/44

4/29

at

100.00

2,696,109

11,005

Rhode

Island

Housing

&

Mortgage

Finance

Corporation,

Homeownership

Opportunity

Bond

Program,

2022

Series

76A,

2.550%,

10/01/42

4/31

at

100.00

8,172,990

295,135

Rhode

Island

Tobacco

Settlement

Financing

Corporation,

Tobacco

Settlement

Asset-Backed

Bonds,

Series

2007A,

0.000%,

6/01/52

5/24

at

19.06

51,122,074

2,595

Rhode

Island

Tobacco

Settlement

Financing

Corporation,

Tobacco

Settlement

Asset-Backed

Bonds,

Series

2015B,

4.500%,

6/01/45

6/25

at

100.00

2,570,496

Total

Rhode

Island

64,561,669

South

Carolina

-

2.6%

(1.6%

of

Total

Investments)

7,600

Piedmont

Municipal

Power

Agency,

South

Carolina,

Electric

Revenue

Bonds,

Series

2004A-2,

0.000%,

1/01/31

-

AMBAC

Insured

No

Opt.

Call

5,770,290

4,500

Rock

Hill,

South

Carolina,

Combined

Utility

System

Revenue

Bonds,

Series

2024A,

4.250%,

1/01/59

1/34

at

100.00

4,189,542

1,185

South

Carolina

Housing

Finance

and

Development

Authority,

Mortgage

Revenue

Bonds,

Series

2022B,

4.350%,

7/01/47

7/31

at

100.00

1,154,526

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

54

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

South

Carolina

(continued)

$

975

South

Carolina

Housing

Finance

and

Development

Authority,

Mortgage

Revenue

Bonds,

Series

2023A,

4.900%,

7/01/48

7/32

at

100.00

$

985,016

1,000

South

Carolina

Housing

Finance

and

Development

Authority,

Mortgage

Revenue

Bonds,

Series

2024A,

4.625%,

7/01/49

1/33

at

100.00

998,176

South

Carolina

Jobs-Economic

Development

Authority,

Economic

Development

Revenue

Bonds,

Bishop

Gadsden

Episcopal

Retirement

Community,

Series

2019A

:

890

5.000%,

4/01/49

4/26

at

103.00

831,128

1,165

4.000%,

4/01/54

4/26

at

103.00

863,497

1,630

5.000%,

4/01/54

4/26

at

103.00

1,490,946

South

Carolina

Jobs-Economic

Development

Authority,

Economic

Development

Revenue

Bonds,

Hilton

Head

Christian

Academy,

Series

2020

:

400

(c)

5.000%,

1/01/40

1/30

at

100.00

373,970

1,000

(c)

5.000%,

1/01/55

1/30

at

100.00

856,734

South

Carolina

Jobs-Economic

Development

Authority,

Health

Facilities

Revenue

Bonds,

Lutheran

Homes

of

South

Carolina

Inc.,

Refunding

Series

2017B

:

1,000

5.000%,

5/01/37

5/24

at

103.00

893,975

750

5.000%,

5/01/42

5/24

at

103.00

627,463

405

South

Carolina

Jobs-Economic

Development

Authority,

Hospital

Revenue

Bonds,

AnMed

Health

Project,

Series

2023,

4.250%,

2/01/48

2/33

at

100.00

397,756

30,325

South

Carolina

Public

Service

Authority,

Santee

Cooper

Revenue

Obligations,

Refunding

&

Improvement

Series

2015A,

5.000%,

12/01/50

6/25

at

100.00

30,345,393

7,565

South

Carolina

Public

Service

Authority,

Santee

Cooper

Revenue

Obligations,

Refunding

&

Improvement

Series

2020A,

3.000%,

12/01/41

-

BAM

Insured

12/30

at

100.00

6,103,709

4,985

South

Carolina

Public

Service

Authority,

Santee

Cooper

Revenue

Obligations,

Refunding

Series

2014C,

5.000%,

12/01/46

12/24

at

100.00

4,835,165

5,000

South

Carolina

Public

Service

Authority,

Santee

Cooper

Revenue

Obligations,

Refunding

Series

2022A,

4.000%,

12/01/52

6/32

at

100.00

4,465,403

10,170

South

Carolina

Public

Service

Authority,

Santee

Cooper

Revenue

Obligations,

Series

2015E,

5.250%,

12/01/55

12/25

at

100.00

10,192,057

Total

South

Carolina

75,374,746

South

Dakota

-

0.6%

(0.4%

of

Total

Investments)

3,765

South

Dakota

Health

and

Educational

Facilities

Authority,

Revenue

Bonds,

Regional

Health,

Refunding

Series

2017,

5.000%,

9/01/40

9/27

at

100.00

3,850,155

6,000

South

Dakota

Housing

Development

Authority,

Homeownership

Mortgage

Revenue

Bonds,

Series

2022B,

2.500%,

11/01/42

11/30

at

100.00

4,407,060

South

Dakota

Housing

Development

Authority,

Homeownership

Mortgage

Revenue

Bonds,

Social

Series

2023A

:

6,250

(f)

4.350%,

11/01/43,

(UB)

11/31

at

100.00

6,115,327

4,000

(f)

4.550%,

5/01/48,

(UB)

11/31

at

100.00

3,982,309

Total

South

Dakota

18,354,851

Tennessee

-

0.8%

(0.5%

of

Total

Investments)

1,350

Chattanooga-Hamilton

County

Hospital

Authority,

Tennessee,

Hospital

Revenue

Bonds,

Erlanger

Health

System,

Refunding

Series

2014A,

5.000%,

10/01/39

10/24

at

100.00

1,349,947

1,490

Knox

County

Health,

Educational

and

Housing

Facility

Board,

Tennessee,

Hospital

Revenue

Bonds,

East

Tennessee

Children's

Hospital,

Series

2019,

4.000%,

11/15/48

2/29

at

100.00

1,321,629

55

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Tennessee

(continued)

$

2,645

(d)

Memphis/Shelby

County

Economic

Development

Growth

Engine

Industrial

Development

Board,

Tennessee,

Tax

Increment

Revenue

Bonds,

Graceland

Project,

Senior

Series

2017A,

5.500%,

7/01/37

7/27

at

100.00

$

1,827,087

4,100

Tennergy

Corporation,

Tennessee,

Gas

Revenue

Bonds,

Series

2022A,

5.500%,

10/01/53,

(Mandatory

Put

12/01/30)

9/30

at

100.10

4,311,487

830

Tennessee

Housing

Development

Agency,

Residential

Finance

Program

Bonds,

Series

2020-3A,

2.550%,

1/01/45

7/29

at

100.00

583,850

10,000

(f)

Tennessee

Housing

Development

Agency,

Residential

Finance

Program

Bonds,

Social

Series

2023-3A,

5.350%,

7/01/48,

(UB)

7/32

at

100.00

10,308,726

345

Tennessee

Housing

Development

Agency,

Residential

Finance

Program

Bonds,

Social

Series

2024-1A,

4.800%,

7/01/54

1/33

at

100.00

346,619

1,500

(f)

Tennessee

Housing

Development

Agency,

Residential

Finance

Program

Bonds,

Tender

Option

Bond

Trust

Series

2023-XL0448,

4.550%,

7/01/48,

(UB)

7/32

at

100.00

1,496,466

10,000

(c),(d)

The

Health

and

Educational

Facilities

Board

of

the

City

of

Franklin,

Tennessee,

Revenue

Bonds,

Provision

Cares

Proton

Therapy

Center,

Nashville

Project,

Series

2017A,

7.500%,

6/01/47

6/27

at

100.00

435,000

Total

Tennessee

21,980,811

Texas

-

13.5%

(8.1%

of

Total

Investments)

7,670

Aldine

Independent

School

District,

Harris

County,

Texas,

General

Obligation

Bonds,

School

Building

Series

2024,

4.000%,

2/15/49

2/34

at

100.00

7,325,857

5,480

Austin,

Texas,

Electric

Utility

System

Revenue

Bonds,

Refunding

Series

2015A,

5.000%,

11/15/45

11/25

at

100.00

5,547,608

1,160

Bexar

County,

Texas,

Certificates

of

Obligation,

Combination

Tax

&

Revenue

Series

2023,

4.000%,

6/15/46

6/33

at

100.00

1,118,014

2,500

Board

of

Managers,

Joint

Guadalupe

County-Seguin

City

Hospital,

Texas,

Hospital

Mortgage

Revenue

Bonds,

Refunding

&

Improvement

Series

2015,

5.000%,

12/01/45

12/25

at

100.00

2,208,549

16,280

(f)

Board

of

Regents

of

the

University

of

Texas

System,

Revenue

Financing

System

Bonds,

Series

2019B,

5.000%,

8/15/49,

(UB)

No

Opt.

Call

18,345,209

945

Board

of

Regents

of

the

University

of

Texas

System,

Revenue

Financing

System

Bonds,

Series

2024A,

4.000%,

8/15/49,

(WI/DD)

8/33

at

100.00

905,688

2,180

Celina,

Texas,

Special

Assessment

Revenue

Bonds,

Sutton

Fields

II

Public

Improvement

District

Neighborhood

Improvement

Area

1

Project,

Series

2015,

7.250%,

9/01/45

9/24

at

102.00

2,220,619

3,855

Celina,

Texas,

Special

Assessment

Revenue

Bonds,

Sutton

Fields

II

Public

Improvement

District

Neighborhood

Improvement

Areas

2-5

Major

Improvement

Project,

Series

2015,

8.250%,

9/01/40

9/24

at

102.00

3,940,324

350

Celina,

Texas,

Special

Assessment

Revenue

Bonds,

Wells

South

Public

Improvement

District

Neighborhood

Improvement

Area

1

Project,

Series

2015,

6.250%,

9/01/45

9/24

at

100.00

350,704

3,335

Central

Texas

Regional

Mobility

Authority,

Revenue

Bonds,

Senior

Lien

Series

2020E,

5.000%,

1/01/45

1/30

at

100.00

3,463,404

5,390

Central

Texas

Regional

Mobility

Authority,

Revenue

Bonds,

Senior

Lien

Series

2021B,

5.000%,

1/01/46

1/31

at

100.00

5,616,439

13,685

(e)

Central

Texas

Regional

Mobility

Authority,

Revenue

Bonds,

Senior

Lien,

Series

2015A,

5.000%,

1/01/45,

(Pre-refunded

7/01/25)

7/25

at

100.00

13,917,927

6,375

Central

Texas

Regional

Mobility

Authority,

Revenue

Bonds,

Senior

Lien,

Series

2016,

3.375%,

1/01/41

1/26

at

100.00

5,514,204

Clifton

Higher

Education

Finance

Corporation,

Texas,

Education

Revenue

Bonds,

Uplift

Education

Charter

School,

Series

2013A

:

765

4.350%,

12/01/42

5/24

at

100.00

693,022

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

56

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Texas

(continued)

$

685

4.400%,

12/01/47

5/24

at

100.00

$

594,738

4,000

Clifton

Higher

Education

Finance

Corporation,

Texas,

Education

Revenue

Bonds,

Uplift

Education

Charter

School,

Series

2015A,

5.000%,

12/01/45

6/25

at

100.00

3,893,091

Club

Municipal

Management

District

1,

Texas,

Special

Assessment

Revenue

Bonds,

Improvement

Area

1

Project,

Series

2016

:

380

5.750%,

9/01/28

9/24

at

102.00

387,594

710

6.500%,

9/01/46

9/24

at

102.00

724,900

7,305

Conroe

Independent

School

District,

Montgomery

County,

Texas,

General

Obligation

Bonds,

School

Building

Series

2024,

5.000%,

2/15/49

2/34

at

100.00

7,835,040

400

(e)

Decatur

Hospital

Authority,

Texas,

Revenue

Bonds,

Wise

Regional

Health

System,

Series

2014A,

5.250%,

9/01/44,

(Pre-refunded

9/01/24)

9/24

at

100.00

401,378

12,000

(f)

Denton

Independent

School

District,

Denton

County,

Texas,

General

Obligation

Bonds,

School

Building

Series

2023,

5.000%,

8/15/53,

(UB)

8/33

at

100.00

12,728,849

1,260

Fort

Bend

County

Industrial

Development

Corporation,

Texas,

Revenue

Bonds,

NRG

Energy

Inc.

Project,

Series

2012A.

RMKT,

4.750%,

5/01/38

5/24

at

100.00

1,259,955

6,010

Fort

Bend

County

Industrial

Development

Corporation,

Texas,

Revenue

Bonds,

NRG

Energy

Inc.

Project,

Series

2012B,

4.750%,

11/01/42

5/24

at

100.00

5,972,017

525

Frisco

Independent

School

District,

Collin

and

Denton

Counties,

Texas,

General

Obligation

Bonds,

Refunding

&

School

Building

Series

2024,

4.000%,

2/15/49,

(WI/DD)

2/34

at

100.00

502,991

2,490

Greater

Texoma

Utility

Authority,

Texas,

Contract

Revenue

Bonds,

City

of

Sherman

Project

Series

2023A,

4.375%,

10/01/53

-

BAM

Insured

10/32

at

100.00

2,419,316

1,535

Greater

Texoma

Utility

Authority,

Texas,

Contract

Revenue

Bonds,

City

of

Sherman

Project

Series

2024,

4.375%,

10/01/54

-

BAM

Insured

10/33

at

100.00

1,475,668

7,305

Greenville,

Texas,

General

Obligation

Bonds,

Series

2024,

4.125%,

2/15/51

-

AGM

Insured

No

Opt.

Call

6,926,218

3,105

Harris

County

Cultural

Education

Facilities

Finance

Corporation,

Texas,

Revenue

Bonds,

Houston

Methodist

Hospital

System,

Series

2015,

5.000%,

12/01/45

6/25

at

100.00

3,123,973

1,000

Harris

County

Flood

Control

District,

Texas,

General

Obligation

Bonds,

Refunding

Improvement,

Green

Series

2023A,

4.000%,

9/15/48

9/33

at

100.00

954,585

4,080

(c)

Harris

County,

Texas,

General

Obligtion

Toll

Road

Revenue

Bonds,

Tender

Option

Bond

Trust

2015-XF0074,

6.726%,

8/15/32

-

AGM

Insured,

(IF)

No

Opt.

Call

6,103,314

6,000

Harris

County-Houston

Sports

Authority,

Texas,

Revenue

Bonds,

Capital

Appreciation

Refunding

Senior

Lien

Series

2014A,

0.000%,

11/15/48

11/31

at

44.13

1,739,506

3,775

Harris

County-Houston

Sports

Authority,

Texas,

Revenue

Bonds,

Refunding

Senior

Lien

Series

2014A,

5.000%,

11/15/53

11/24

at

100.00

3,665,796

Harris

County-Houston

Sports

Authority,

Texas,

Revenue

Bonds,

Third

Lien

Series

2004A-3

:

14,055

0.000%,

11/15/34

-

NPFG

Insured

11/24

at

55.69

7,632,867

1,940

(e)

0.000%,

11/15/34,

(Pre-refunded

11/15/24)

-

NPFG

Insured

11/24

at

55.69

1,055,658

Hidalgo

County

Regional

Mobility

Authority,

Texas,

Toll

and

Vehicle

Registration

Fee

Revenue

Bonds,

Senior

Lien

Series

2022A

:

2,295

0.000%,

12/01/42

12/31

at

68.27

913,477

3,000

0.000%,

12/01/43

12/31

at

65.48

1,123,381

3,000

0.000%,

12/01/44

12/31

at

62.57

1,051,401

4,000

0.000%,

12/01/45

12/31

at

59.85

1,318,300

7,165

0.000%,

12/01/46

12/31

at

57.36

2,218,477

7,580

0.000%,

12/01/47

12/31

at

55.10

2,202,778

7,095

0.000%,

12/01/48

12/31

at

52.91

1,942,558

7,550

0.000%,

12/01/49

12/31

at

50.78

1,927,119

5,140

0.000%,

12/01/50

12/31

at

48.73

1,227,785

4,000

0.000%,

12/01/51

12/31

at

46.73

893,296

57

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Texas

(continued)

$

5,000

Houston

Higher

Education

Finance

Corporation,

Texas,

Education

Revenue

Bonds,

KIPP,

Inc.,

Refunding

Series

2015,

4.000%,

8/15/44

8/25

at

100.00

$

4,761,838

100

Houston

Higher

Education

Finance

Corporation,

Texas,

Revenue

Bonds,

Rice

University,

Series

2024,

5.000%,

5/15/34

No

Opt.

Call

117,073

Houston,

Texas,

Hotel

Occupancy

Tax

and

Special

Revenue

Bonds,

Convention

and

Entertainment

Project,

Series

2001B

:

4,090

0.000%,

9/01/26

-

AMBAC

Insured

No

Opt.

Call

3,739,014

4,865

0.000%,

9/01/27

-

AGM

Insured

No

Opt.

Call

4,287,253

4,715

Houston,

Texas,

Hotel

Occupancy

Tax

and

Special

Revenue

Bonds,

Refunding

Series

2015,

5.000%,

9/01/40

9/24

at

100.00

4,718,038

17,000

(e)

Houston,

Texas,

Water

and

Sewerage

System

Revenue

Bonds,

Refunding

Junior

Lien

Series

2002A,

5.750%,

12/01/32

-

AGM

Insured,

(ETM)

No

Opt.

Call

20,677,472

2,895

Humble

Independent

School

District,

Harris

County,

Texas,

General

Obligation

Bonds,

School

Building

Series

2024,

4.000%,

2/15/54

2/34

at

100.00

2,731,922

6,545

Hurst-Euless-Bedford

Independent

School

District,

Tarrant

County,

Texas,

General

Obligation

Bonds,

School

Building

Series

2024,

4.000%,

8/15/50

8/34

at

100.00

6,161,013

3,450

Judson

Independent

School

District,

Bexar

County,

Texas,

General

Obligation

Bonds,

School

Building

Series

2024,

4.000%,

2/01/53

2/34

at

100.00

3,227,260

940

Kerrville

Health

Facilities

Development

Corporation,

Texas,

Revenue

Bonds,

Sid

Peterson

Memorial

Hospital

Project,

Series

2015,

5.000%,

8/15/30

8/25

at

100.00

949,419

6,665

Lamar

Consolidated

Independent

School

District,

Fort

Bend

County,

Texas,

General

Obligation

Bonds,

Schoolhouse

Series

2023A,

5.000%,

2/15/58

2/33

at

100.00

7,026,691

1,000

Lower

Colorado

River

Authority,

Texas,

Transmission

Contract

Revenue

Bonds,

LCRA

Transmission

Services

Corporation

Project,

Refunding

Series

2015,

5.000%,

5/15/45

5/25

at

100.00

1,007,462

McCamey

County

Hospital

District,

Texas,

General

Obligation

Bonds,

Series

2013

:

3,095

5.750%,

12/01/33

12/25

at

100.00

3,121,186

3,125

6.125%,

12/01/38

12/25

at

100.00

3,145,744

6,465

Midland

Independent

School

District,

Midland

County,

Texas,

General

Obligation

Bonds,

School

Building

Series

2024,

4.000%,

2/15/54

2/33

at

100.00

6,045,376

2,865

New

Braunfels,

Comal

County,

Texas,

Utility

System

Revenue

Bonds,

Refunding

Series

2024,

4.000%,

7/01/55

7/34

at

100.00

2,620,489

New

Hope

Cultural

Education

Facilities

Finance

Corporation,

Texas,

Retirement

Facility

Revenue

Bonds,

Legacy

at

Willow

Bend

Project,

Series

2016

:

2,335

5.000%,

11/01/46

5/24

at

103.00

1,851,957

6,015

5.000%,

11/01/51

5/24

at

103.00

4,633,273

745

New

Hope

Cultural

Education

Facilities

Finance

Corporation,

Texas,

Retirement

Facility

Revenue

Bonds,

Wesleyan

Homes,

Inc.

Project,

Series

2014,

5.500%,

1/01/43

1/25

at

100.00

639,869

210

(e)

New

Hope

Cultural

Education

Facilities

Finance

Corporation,

Texas,

Student

Housing

Revenue

Bonds,

CHF-Collegiate

Housing

Corpus

Christi

II,

L.L.C.-Texas

A&M

University-Corpus

Christi

Project,

Series

2016A,

5.000%,

4/01/48,

(Pre-refunded

4/01/26)

4/26

at

100.00

215,778

4,530

New

Hope

Cultural

Education

Facilities

Finance

Corporation,

Texas,

Student

Housing

Revenue

Bonds,

CHF-Collegiate

Housing

Foundation

-

College

Station

I

LLC

-

Texas

A&M

University

Project,

Series

2014A,

4.100%,

4/01/34

-

AGM

Insured

5/24

at

100.00

4,337,921

Nuveen

AMT-Free

Municipal

Credit

Income

Fund

(continued)

Portfolio

of

Investments

April

30,

2024

(Unaudited)

58

NVG

Principal

Amount

(000)

Description

(a)

Optional

Call

Provisions

(b)

Value

Texas

(continued)

$

820

(e)

New

Hope

Cultural

Education

Facilities

Finance

Corporation,

Texas,

Student

Housing

Revenue

Bonds,

CHF-Collegiate

Housing

Foundation

-

San

Antonio

1,

L.L.C.

-

Texas

A&M

University

-

San

Antonio

Project,

Series

2016A,

5.000%,

4/01/48,

(Pre-refunded

4/01/26)

4/26

at

100.00

$

841,797

North

Texas

Tollway

Authority,

Special

Projects

System

Revenue

Bonds,

Convertible

Capital

Appreciation

Series

2011C

:

2,590

(e)

7.000%,

9/01/43,

(Pre-refunded

9/01/31)

9/31

at

100.00

3,164,618