iShares Trust - iShares 1-3 Year Treasury Bond ETF
US ˙ NasdaqGM ˙ US4642874576

SecuritySHY / iShares Trust - iShares 1-3 Year Treasury Bond ETF
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership46,604 shares
Latest Disclosed Value $ 3,859,776
Parallel Advisors, LLC ownership in SHY / iShares Trust - iShares 1-3 Year Treasury Bond ETF

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 46,604 shares of iShares Trust - iShares 1-3 Year Treasury Bond ETF (US:SHY) valued at $3,859,743 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 44,001 shares of iShares Trust - iShares 1-3 Year Treasury Bond ETF. This represents a change in shares of 5.92% during the quarter. The current value of the position is $3,820,130 USD.

Parallel Advisors, LLC has a history of taking positions in derivatives of the underlying security (SHY) 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.

SHY / iShares Trust - iShares 1-3 Year Treasury 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 1-3 YR TREASURY BOND ETF ETF 464287457 46,604 2,603 5.92 3,860 5.73 0.0706
2025-11-13 2025-09-30 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 44,001 -5,071 -10.33 3,650 -10.23 0.0668
2025-07-08 2025-06-30 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 49,072 553 1.14 4,066 1.32 0.0813
2025-04-08 2025-03-31 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 48,519 392 0.81 4,014 1.72 0.0905
2025-02-10 2024-12-31 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 48,127 1,416 3.03 3,945 1.57 0.0887
2024-11-13 2024-09-30 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 46,711 -3,190 -6.39 3,884 -4.66 0.0913
2024-08-08 2024-06-30 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 49,901 2,479 5.23 4,074 5.05 0.1044
2024-05-06 2024-03-31 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 47,422 -11,048 -18.90 3,878 -19.14 0.1051
2024-02-12 2023-12-31 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 58,470 -4,043 -6.47 4,797 -5.24 0.1423
2024-05-20 2023-09-30 13F/A-1 ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 62,513 -1,423 -2.23 5,062 -2.35 0.1686
2023-11-14 2023-09-30 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 62,513 -1,423 5,062 0.1686
2024-05-20 2023-06-30 13F/A-1 ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 63,936 -2,575 -3.87 5,184 -5.14 0.1669
2023-08-04 2023-06-30 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 63,936 -2,575 5,184 0.1669
2024-05-20 2023-03-31 13F/A-1 ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 66,511 -2,696 -3.90 5,465 -2.72 0.1843
2023-04-25 2023-03-31 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 66,511 -2,696 5,465 0.1843
2023-02-06 2022-12-31 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 69,207 33,154 91.96 5,618 91.84 0.2436
2022-11-10 2022-09-30 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 36,053 29,723 469.56 2,928 458.78 0.1348
2022-08-01 2022-06-30 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 6,330 3,360 113.13 524 111.29 0.0240
2022-04-28 2022-03-31 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 2,970 -1,262 -29.82 248 -31.49 0.0098
2022-01-20 2021-12-31 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 4,232 -3,652 -46.32 362 -46.69 0.0134
2021-11-02 2021-09-30 13F/A-1 ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 7,884 -7,210 -47.77 679 -47.81 0.0274
2021-08-06 2021-06-30 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 15,094 -2,713 -15.24 1,301 -15.30 0.0551
2021-04-23 2021-03-31 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 17,807 2,192 14.04 1,536 13.86 0.0725
2021-02-02 2020-12-31 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 15,615 8,862 131.23 1,349 130.99 0.0732
2020-10-27 2020-09-30 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 6,753 1,370 25.45 584 25.32 0.0361
2020-07-16 2020-06-30 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 5,383 1,618 42.97 466 42.94 0.0304
2020-04-27 2020-03-31 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 3,765 -1,044 -21.71 326 -19.90 0.0264
2020-01-30 2019-12-31 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 4,809 709 17.29 407 16.95 0.0305
2019-11-01 2019-09-30 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 4,100 1,985 93.85 348 94.41 0.0298
2019-08-05 2019-06-30 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 2,115 -329 -13.46 179 -13.11 0.0175
2019-05-01 2019-03-31 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 2,444 -4,918 -66.80 206 -66.50 0.0231
2019-02-05 2018-12-31 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 7,362 1,000 15.72 615 16.26 0.0858
2018-11-01 2018-09-30 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 6,362 -2,594 -28.96 529 -29.09 0.0657
2018-07-30 2018-06-30 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 8,956 -14,452 -61.74 746 -61.86 0.1067
2018-05-08 2018-03-31 13F ISHARES 1-3 YR TREASURY BOND ETF ETF 464287457 23,408 22,559 2,657.13 1,956 2,654.93 0.3055
2018-02-13 2017-12-31 13F ISHARES 1-3 YEAR TREASURY BOND ETF ETF 464287457 849 -184 -17.81 71 -18.39 0.0116
2017-11-15 2017-09-30 13F/A-1 ISHARES 1-3 YEAR TREASURY BOND ETF ETF 464287457 1,033 0 0.00 87 0.00 0.0150
2017-08-07 2017-06-30 13F ISHARES 1-3 YEAR TREASURY BOND ETF ETF 464287457 1,033 -1,394 -57.44 87 -57.56 0.0164
2017-05-12 2017-03-31 13F/A-1 ISHARES 1-3 YEAR TREASURY BOND ETF ETF 464287457 2,427 -8 -0.33 205 -0.49 0.0408
2017-05-12 2017-03-31 13F ISHARES 1-3 YEAR TREASURY BOND ETF ETF 464287457 2,427 205
2017-02-14 2016-12-31 13F ISHARES 1-3 YEAR TREASURY BOND ETF ETF 464287457 2,435 2,435 206 0.0484
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 1-3 YR TREASURY BOND ETF ETF Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F ISHARES 1-3 YR TREASURY BOND ETF ETF Call 15,094 1,301 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.