iShares Trust - iShares 10-20 Year Treasury Bond ETF
US ˙ ARCA ˙ US4642886539

SecurityTLH / iShares Trust - iShares 10-20 Year Treasury Bond ETF
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Parallel Advisors, LLC ownership in TLH / iShares Trust - iShares 10-20 Year Treasury Bond ETF

On June 2, 2026 - Parallel Advisors, LLC filed a 13F-HR/A form disclosing ownership of 0 shares of iShares Trust - iShares 10-20 Year Treasury Bond ETF (US:TLH) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 7,872 shares of iShares Trust - iShares 10-20 Year Treasury Bond ETF. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

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

TLH / iShares Trust - iShares 10-20 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)
2026-06-02 2026-03-31 13F/A-1 ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 0 -7,872 -100.00 0 -100.00
2026-02-11 2025-12-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 7,872 -202 -2.50 800 -3.73 0.0146
2025-11-13 2025-09-30 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 8,074 -1,887 -18.94 832 -17.89 0.0152
2025-07-08 2025-06-30 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 9,961 -2,613 -20.78 1,012 -22.39 0.0202
2025-04-08 2025-03-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 12,574 -4,690 -27.17 1,305 -24.10 0.0294
2025-02-10 2024-12-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 17,264 -8,026 -31.74 1,718 -37.84 0.0387
2024-11-13 2024-09-30 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 25,290 -2,851 -10.13 2,765 -4.36 0.0650
2024-08-08 2024-06-30 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 28,141 -4,166 -12.90 2,890 -14.82 0.0740
2024-05-06 2024-03-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 32,307 -9,017 -21.82 3,393 -24.14 0.0920
2024-02-12 2023-12-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 41,324 -315,547 -88.42 4,474 -87.27 0.1327
2024-05-20 2023-09-30 13F/A-1 ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 356,871 3,504 0.99 35,141 -10.22 1.1706
2023-11-14 2023-09-30 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 356,871 3,504 35,141 1.1706
2024-05-20 2023-06-30 13F/A-1 ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 353,367 168,146 90.78 39,142 84.50 1.2603
2023-08-04 2023-06-30 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 353,367 168,146 39,142 1.2603
2024-05-20 2023-03-31 13F/A-1 ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 185,221 17,930 10.72 21,215 17.23 0.7153
2023-04-25 2023-03-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 185,221 17,930 21,215 0.7153
2023-02-06 2022-12-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 167,291 31,659 23.34 18,098 22.47 0.7848
2022-11-10 2022-09-30 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 135,632 135,294 40,027.81 14,777 35,941.46 0.6802
2022-08-01 2022-06-30 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 338 -28 -7.65 41 -16.33 0.0019
2022-04-28 2022-03-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 366 -147 -28.65 49 -35.53 0.0019
2022-01-20 2021-12-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 513 -385 -42.87 76 -42.42 0.0028
2021-11-02 2021-09-30 13F/A-1 ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 898 -327 -26.69 132 -26.67 0.0053
2021-08-06 2021-06-30 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 1,225 -696 -36.23 180 -33.09 0.0076
2021-04-23 2021-03-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 1,921 -2,246 -53.90 269 -59.43 0.0127
2021-02-02 2020-12-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 4,167 -307 -6.86 663 -11.01 0.0360
2020-10-27 2020-09-30 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 4,474 298 7.14 745 6.73 0.0461
2020-07-16 2020-06-30 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 4,176 2,398 134.87 698 134.23 0.0456
2020-04-27 2020-03-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 1,778 1 0.06 298 16.86 0.0241
2020-01-30 2019-12-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 1,777 281 18.78 255 13.84 0.0191
2019-11-01 2019-09-30 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 1,496 -26 -1.71 224 2.75 0.0192
2019-08-05 2019-06-30 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 1,522 2 0.13 218 4.31 0.0213
2019-05-01 2019-03-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 1,520 -1,125 -42.53 209 -40.79 0.0235
2019-02-05 2018-12-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 2,645 -201 -7.06 353 -3.55 0.0492
2018-11-01 2018-09-30 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 2,846 -1,045 -26.86 366 -28.38 0.0455
2018-07-30 2018-06-30 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 3,891 -1,057 -21.36 511 -21.98 0.0731
2018-05-08 2018-03-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 4,948 -20,378 -80.46 655 -80.99 0.1023
2018-02-13 2017-12-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 25,326 5,417 27.21 3,445 27.50 0.5637
2017-11-15 2017-09-30 13F/A-1 ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 19,909 -1,334 -6.28 2,702 -6.70 0.4647
2017-08-07 2017-06-30 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 21,243 5,018 30.93 2,896 31.94 0.5462
2017-05-12 2017-03-31 13F/A-1 ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 16,225 16,225 2,195 0.4364
2017-05-12 2017-03-31 13F ISHARES 10-20 YEAR TREASURY BOND ETF ETF 464288653 16,225 2,195
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 10-20 YEAR 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 10-20 YEAR TREASURY BOND ETF ETF Call 1,225 180 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.