iShares Trust - iShares 1-3 年期公債 ETF
US ˙ NasdaqGM ˙ US4642874576

SecuritySHY / iShares Trust - iShares 1-3 Year Treasury Bond ETF
InstitutionEfficient Advisors, LLC
Latest Disclosed Ownership44,994 shares
Latest Disclosed Value $ 3,715,193
Efficient Advisors, LLC reports 27.44% decrease in ownership of SHY / iShares Trust - iShares 1-3 Year Treasury Bond ETF

On April 29, 2026 - Efficient Advisors, LLC filed a 13F-HR form disclosing ownership of 44,994 shares of iShares Trust - iShares 1-3 Year Treasury Bond ETF (US:SHY) valued at $3,715,155 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on January 21, 2026 disclosing 62,009 shares of iShares Trust - iShares 1-3 Year Treasury Bond ETF. This represents a change in shares of -27.44% during the quarter. The current value of the position is $3,690,858 USD.

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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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)
2026-04-29 2026-03-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 44,994 -17,015 -27.44 3,715 -27.65 0.2638
2026-01-21 2025-12-31 13F/A-1 ISHARES TR 1 3 YR TREAS BD 464287457 62,009 -13,688 -18.08 5,136 -18.22 0.2998
2026-01-08 2025-12-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 62,009 -13,688 5,136 0.2998
2025-11-10 2025-09-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 75,697 -187 -0.25 6,280 -0.13 0.3539
2025-08-07 2025-06-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 75,884 -5,928 -7.25 6,288 -7.11 0.3744
2025-05-06 2025-03-31 13F/A-1 ISHARES TR 1 3 YR TREAS BD 464287457 81,812 -9,284 -10.19 6,768 -9.37 0.4407
2025-05-06 2025-03-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 83,117 -7,979 6,876 0.4170
2025-02-07 2024-12-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 91,096 -6,032 -6.21 7,468 -7.53 0.4809
2024-11-12 2024-09-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 97,128 -9,877 -9.23 8,076 -7.55 0.5066
2024-08-05 2024-06-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 107,005 -14,806 -12.15 8,737 -12.30 0.5668
2024-05-09 2024-03-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 121,811 -333 -0.27 9,962 -0.59 0.6390
2024-02-13 2023-12-31 13F/A-1 ISHARES TR 1 3 YR TREAS BD 464287457 122,144 17,023 16.19 10,021 17.73 0.6766
2024-02-08 2023-12-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 122,144 17,023 10,021 0.6766
2023-11-07 2023-09-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 105,121 -35,177 -25.07 8,512 -25.18 0.5761
2023-08-08 2023-06-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 140,298 -13,276 -8.64 11,375 -9.84 0.7432
2023-05-09 2023-03-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 153,574 -8,227 -5.08 12,618 -3.93 0.8793
2023-02-08 2022-12-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 161,801 -195,427 -54.71 13,133 -54.73 1.3348
2022-11-08 2022-09-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 357,228 -6,294 -1.73 29,010 -3.61 2.5272
2022-08-05 2022-06-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 363,522 -30,593 -7.76 30,096 -8.38 2.5125
2022-05-11 2022-03-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 394,115 -70,620 -15.20 32,849 -17.37 2.5070
2022-01-20 2021-12-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 464,735 17,045 3.81 39,753 3.07 2.8185
2021-10-21 2021-09-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 447,690 31,812 7.65 38,568 7.64 3.6873
2021-07-21 2021-06-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 415,878 17,449 4.38 35,832 4.27 4.4438
2021-04-28 2021-03-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 398,429 -40,264 -9.18 34,364 -9.32 4.7121
2021-02-02 2020-12-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 438,693 -69,222 -13.63 37,894 -13.76 5.7827
2020-11-09 2020-09-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 507,915 2,511 0.50 43,940 0.38 8.0675
2020-08-07 2020-06-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 505,404 54,459 12.08 43,773 12.00 8.1013
2020-05-15 2020-03-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 450,945 -4,999 -1.10 39,083 1.29 8.1738
2020-01-27 2019-12-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 455,944 29,900 7.02 38,587 6.78 6.7163
2019-11-07 2019-09-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 426,044 17,842 4.37 36,137 4.42 6.6050
2019-08-07 2019-06-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 408,202 5,539 1.38 34,607 2.17 6.0432
2019-05-09 2019-03-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 402,663 6,243 1.57 33,872 2.18 5.9215
2019-01-29 2018-12-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 396,420 -9,634 -2.37 33,149 -1.75 6.1687
2018-11-05 2018-09-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 406,054 -6,271 -1.52 33,739 -1.85 5.7759
2018-08-20 2018-06-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 412,325 3,136 0.77 34,376 0.54 5.8462
2018-05-01 2018-03-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 409,189 16,408 4.18 34,192 3.82 5.7665
2018-02-14 2017-12-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 392,781 7,863 2.04 32,935 1.32 5.4866
2017-11-16 2017-09-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 384,918 -4,555 -1.17 32,506 -1.22 5.5860
2017-07-31 2017-06-30 13F ISHARES TR 1-3 YR TR BD ETF 464287457 389,473 -7,006 -1.77 32,907 -1.80 4.8430
2017-05-11 2017-03-31 13F ISHARES TR 1-3 YR TR BD ETF 464287457 396,479 -8,423 -2.08 33,510 -2.00 4.6885
2017-02-15 2016-12-31 13F ISHARES TR 1-3 YR TR BD ETF 464287457 404,902 -4,838 -1.18 34,194 -1.87 4.8963
2016-11-22 2016-09-30 13F ISHARES TR 1-3 YR TR BD ETF 464287457 409,740 -43,393 -9.58 34,844 -9.87 5.1235
2016-07-25 2016-06-30 13F ISHARES TR 1-3 YR TR BD ETF 464287457 453,133 3,298 0.73 38,661 1.08 6.1451
2016-06-02 2016-03-31 13F ISHARES TR 1-3 YR TR BD ETF 464287457 449,835 -10,875 -2.36 38,249 -1.59 6.8813
2016-01-19 2015-12-31 13F ISHARES TR 1-3 YR TR BD ETF 464287457 460,710 -479 -0.10 38,866 -0.84 8.4784
2015-11-12 2015-09-30 13F ISHARES TR 1-3 YR TR BD ETF 464287457 461,189 -16,090 -3.37 39,196 -3.22 8.7640
2015-07-08 2015-06-30 13F ISHARES TR 1-3 YR TR BD ETF 464287457 477,279 10,172 2.18 40,502 2.15 8.4548
2015-05-06 2015-03-31 13F ISHARES TR 1-3 YR TR BD ETF 464287457 467,107 467,107 0.00 39,648 8.4399
2015-02-03 2014-12-31 13F ISHARES TR 1-3 YR TR BD ETF 464287457 0 -445,016 -100.00 0 -100.00
2014-10-21 2014-09-30 13F ISHARES TR 1-3 YR TR BD ETF 464287457 445,016 13,055 3.02 37,608 2.96 8.6949
2014-07-28 2014-06-30 13F ISHARES 1-3 YR TR BD ETF 464287457 431,961 3,809 0.89 36,527 1.02 8.3281
2014-05-08 2014-03-31 13F ISHARES 1-3 YR TR BD ETF 464287457 428,152 18,410 4.49 36,157 4.58 8.7266
2014-02-06 2013-12-31 13F ISHARES 1-3 YR TR BD ETF 464287457 409,742 15,252 3.87 34,574 3.75 8.3680
2013-11-14 2013-09-30 13F ISHARES 1-3 YR TR BD ETF 464287457 394,490 14,138 3.72 33,323 3.95 8.5440
2013-08-13 2013-06-30 13F ISHARES TR BARCLYS 1-3 YR 464287457 380,352 380,352 32,056 8.9503
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.