iShares Trust - iShares Core U.S. Aggregate Bond ETF
US ˙ ARCA ˙ US4642872265

SecurityAGG / iShares Trust - iShares Core U.S. Aggregate Bond ETF
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership261,673 shares
Latest Disclosed Value $ 26,135,967
Parallel Advisors, LLC ownership in AGG / iShares Trust - iShares Core U.S. Aggregate Bond ETF

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 261,673 shares of iShares Trust - iShares Core U.S. Aggregate Bond ETF (US:AGG) valued at $26,135,899 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 255,450 shares of iShares Trust - iShares Core U.S. Aggregate Bond ETF. This represents a change in shares of 2.44% during the quarter. The current value of the position is $25,774,790 USD.

Parallel Advisors, LLC has a history of taking positions in derivatives of the underlying security (AGG) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

AGG / iShares Trust - iShares Core U.S. Aggregate Bond ETF Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-02-11 2025-12-31 13F ISHARES AGGREGATE BOND ETF ETF 464287226 261,673 6,223 2.44 26,136 2.06 0.4781
2025-11-13 2025-09-30 13F ISHARES AGGREGATE BOND ETF ETF 464287226 255,450 8,379 3.39 25,609 4.48 0.4689
2025-07-08 2025-06-30 13F ISHARES AGGREGATE BOND ETF ETF 464287226 247,071 -334 -0.14 24,509 0.15 0.4898
2025-04-08 2025-03-31 13F ISHARES AGGREGATE BOND ETF ETF 464287226 247,405 -39,996 -13.92 24,473 -12.12 0.5519
2025-02-10 2024-12-31 13F ISHARES AGGREGATE BOND ETF ETF 464287226 287,401 -2,260 -0.78 27,849 -5.06 0.6264
2024-11-13 2024-09-30 13F ISHARES AGGREGATE BOND ETF ETF 464287226 289,661 -322,236 -52.66 29,334 -50.61 0.6896
2024-08-08 2024-06-30 13F ISHARES AGGREGATE BOND ETF ETF 464287226 611,897 4,140 0.68 59,397 -0.21 1.5217
2024-05-06 2024-03-31 13F ISHARES AGGREGATE BOND ETF ETF 464287226 607,757 220,924 57.11 59,524 55.04 1.6130
2024-02-12 2023-12-31 13F ISHARES AGGREGATE BOND ETF ETF 464287226 386,833 90,238 30.42 38,393 37.65 1.1390
2024-05-20 2023-09-30 13F/A-1 ISHARES AGGREGATE BOND ETF ETF 464287226 296,595 41,364 16.21 27,892 11.57 0.9291
2023-11-14 2023-09-30 13F ISHARES AGGREGATE BOND ETF ETF 464287226 296,595 41,364 27,892 0.9291
2024-05-20 2023-06-30 13F/A-1 ISHARES AGGREGATE BOND ETF ETF 464287226 255,231 -22,306 -8.04 25,000 -9.60 0.8049
2023-08-04 2023-06-30 13F ISHARES AGGREGATE BOND ETF ETF 464287226 255,231 -22,306 25,000 0.8049
2024-05-20 2023-03-31 13F/A-1 ISHARES AGGREGATE BOND ETF ETF 464287226 277,537 3,592 1.31 27,654 4.08 0.9324
2023-04-25 2023-03-31 13F ISHARES AGGREGATE BOND ETF ETF 464287226 277,537 3,592 27,654 0.9324
2023-02-06 2022-12-31 13F ISHARES AGGREGATE BOND ETF ETF 464287226 273,945 99,470 57.01 26,570 58.06 1.1522
2022-11-10 2022-09-30 13F ISHARES AGGREGATE BOND ETF ETF 464287226 174,475 33,461 23.73 16,809 17.23 0.7737
2022-08-01 2022-06-30 13F ISHARES CORE S&P U.S. AGG ETF ETF 464287226 141,014 29,461 26.41 14,338 19.95 0.6580
2022-04-28 2022-03-31 13F ISHARES AGGREGATE BOND ETF ETF 464287226 111,553 -14,070 -11.20 11,953 -16.59 0.4743
2022-01-20 2021-12-31 13F ISHARES AGGREGATE BOND ETF ETF 464287226 125,623 -137,764 -52.30 14,331 -52.62 0.5321
2021-11-02 2021-09-30 13F/A-1 ISHARES AGGREGATE BOND ETF ETF 464287226 263,387 -5,979 -2.22 30,245 -2.64 1.2197
2021-08-06 2021-06-30 13F ISHARES AGGREGATE BOND ETF ETF 464287226 269,366 4,013 1.51 31,066 2.85 1.3157
2021-04-23 2021-03-31 13F ISHARES AGGREGATE BOND ETF ETF 464287226 265,353 8,762 3.41 30,205 -0.40 1.4252
2021-02-02 2020-12-31 13F ISHARES AGGREGATE BOND ETF ETF 464287226 256,591 8,747 3.53 30,326 3.64 1.6462
2020-10-27 2020-09-30 13F ISHARES AGGREGATE BOND ETF ETF 464287226 247,844 10,466 4.41 29,260 4.28 1.8106
2020-07-16 2020-06-30 13F ISHARES AGGREGATE BOND ETF ETF 464287226 237,378 -5,014 -2.07 28,060 0.34 1.8314
2020-04-27 2020-03-31 13F ISHARES AGGREGATE BOND ETF ETF 464287226 242,392 22,652 10.31 27,964 13.25 2.2642
2020-01-30 2019-12-31 13F ISHARES AGGREGATE BOND ETF ETF 464287226 219,740 -400 -0.18 24,692 -0.89 1.8522
2019-11-01 2019-09-30 13F ISHARES AGGREGATE BOND ETF ETF 464287226 220,140 54,973 33.28 24,913 35.46 2.1332
2019-08-05 2019-06-30 13F ISHARES AGGREGATE BOND ETF ETF 464287226 165,167 131,750 394.26 18,392 404.72 1.7941
2019-05-01 2019-03-31 13F ISHARES AGGREGATE BOND ETF ETF 464287226 33,417 23,198 227.01 3,644 235.23 0.4090
2019-02-05 2018-12-31 13F ISHARES AGGREGATE BOND ETF ETF 464287226 10,219 -1,663 -14.00 1,087 -13.25 0.1516
2018-11-01 2018-09-30 13F ISHARES AGGREGATE BOND ETF ETF 464287226 11,882 -290 -2.38 1,253 -3.09 0.1556
2018-07-30 2018-06-30 13F ISHARES AGGREGATE BOND ETF ETF 464287226 12,172 -3,120 -20.40 1,293 -21.16 0.1849
2018-05-08 2018-03-31 13F ISHARES AGGREGATE BOND ETF ETF 464287226 15,292 3,290 27.41 1,640 24.90 0.2561
2018-02-13 2017-12-31 13F ISHARES CORE U.S. AGGREGATE BOND ETF ETF 464287226 12,002 -78 -0.65 1,313 -0.23 0.2149
2017-11-15 2017-09-30 13F/A-1 ISHARES CORE U.S. AGGREGATE BOND ETF ETF 464287226 12,080 565 4.91 1,316 4.20 0.2263
2017-08-07 2017-06-30 13F ISHARES CORE U.S. AGGREGATE BOND ETF ETF 464287226 11,515 955 9.04 1,263 9.92 0.2382
2017-05-12 2017-03-31 13F/A-1 ISHARES CORE U.S. AGGREGATE BOND ETF ETF 464287226 10,560 83 0.79 1,149 1.50 0.2284
2017-05-12 2017-03-31 13F ISHARES CORE U.S. AGGREGATE BOND ETF ETF 464287226 10,560 1,149
2017-02-14 2016-12-31 13F ISHARES CORE U.S. AGGREGATE BOND ETF ETF 464287226 10,477 10,477 1,132 0.2658
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2022-01-19 2021-12-31 13F ISHARES AGGREGATE BOND ETF ETF Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F ISHARES AGGREGATE BOND ETF ETF Call 269,366 31,066 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.