Security
Shares
Value
a
Investment
Companies
(a)
Domestic
Equity
—
27
.1
%
iShares
Core
U.S.
REIT
ETF
.................
783
$
39,181
iShares
Russell
1000
ETF
...................
2,460
678,911
iShares
Russell
2000
ETF
(b)
..................
80
15,672
733,764
a
Domestic
Fixed
Income
—
58
.0
%
iShares
0-5
Year
TIPS
Bond
ETF
..............
2,213
219,486
iShares
10+
Year
Investment
Grade
Corporate
Bond
ETF
................................
1,189
58,023
iShares
10-20
Year
Treasury
Bond
ETF
..........
1,964
194,593
iShares
1-5
Year
Investment
Grade
Corporate
Bond
ETF
................................
3,366
170,959
iShares
5-10
Year
Investment
Grade
Corporate
Bond
ETF
................................
2,213
111,181
iShares
MBS
ETF
........................
4,255
380,993
iShares
U.S.
Treasury
Bond
ETF
..............
19,460
431,136
1,566,371
a
International
Equity
—
14
.8
%
iShares
Core
MSCI
Emerging
Markets
ETF
.......
2,060
106,399
iShares
Core
MSCI
International
Developed
Markets
ETF
................................
4,070
264,224
Security
Shares
Value
a
International
Equity — 14.8%
(continued)
iShares
Global
Infrastructure
ETF
..............
644
$
30,468
401,091
a
Total
Long-Term
Investments — 99.9%
(Cost:
$
2,534,001
)
..................................
2,701,226
a
Short-Term
Securities
Money
Market
Funds
—
0
.7
%
BlackRock
Cash
Funds:
Institutional,
SL
Agency
Shares
,
5.49
%
(a)
(c)
(d)
......................
16,111
16,116
BlackRock
Cash
Funds:
Treasury,
SL
Agency
Shares
,
5.28
%
(a)
(c)
............................
1,952
1,952
a
Total
Short-Term
Securities — 0.7%
(Cost:
$
18,068
)
....................................
18,068
Total
Investments
—
100.6%
(Cost:
$
2,552,069
)
..................................
2,719,294
Liabilities
in
Excess
of
Other
Assets
—
(
0
.6
)
%
...............
(
16,093
)
Net
Assets
—
100.0%
.................................
$
2,703,201
(a)
Affiliate
of
the
Fund.
(b)
All
or
a
portion
of
this
security
is
on
loan.
(c)
Annualized
7-day
yield
as
of
period
end.
(d)
All
or
a
portion
of
this
security
was
purchased
with
the
cash
collateral
from
loaned
securities.
Affiliates
Investments
in
issuers
considered
to
be
affiliate(s)
of
the
Fund
during
the
period
ended
April
30,
2024
for
purposes
of
Section
2(a)(3)
of
the
Investment
Company
Act
of
1940,
as
amended,
were
as
follows:
Affiliated
Issuer
Value
at
10/17/23
(a)
Purchases
at
Cost
Proceeds
from
Sale
Net
Realized
Gain
(Loss)
Change
in
Unrealized
Appreciation
(Depreciation)
Value
at
04/30/24
Shares
Held
at
04/30/24
Income
Capital
Gain
Distributions
from
Underlying
Funds
BlackRock
Cash
Funds:
Institutional,
SL
Agency
Shares
$
—
$
16,118
(b)
$
—
$
(
2
)
$
—
$
16,116
16,111
$
11
(c)
$
—
BlackRock
Cash
Funds:
Treasury,
SL
Agency
Shares
—
1,952
(b)
—
—
—
1,952
1,952
125
—
iShares
0-5
Year
TIPS
Bond
ETF
.
—
225,471
(
11,421
)
279
5,157
219,486
2,213
1,624
—
iShares
10+
Year
Investment
Grade
Corporate
Bond
ETF
.........
—
70,794
(
18,807
)
2,478
3,558
58,023
1,189
1,686
—
iShares
10-20
Year
Treasury
Bond
ETF
—
223,023
(
40,048
)
4,846
6,772
194,593
1,964
4,339
—
iShares
1-5
Year
Investment
Grade
Corporate
Bond
ETF
.........
—
167,989
—
—
2,970
170,959
3,366
2,759
—
iShares
5-10
Year
Investment
Grade
Corporate
Bond
ETF
.........
—
107,477
—
—
3,704
111,181
2,213
2,061
—