Dynex Capital, Inc.
US ˙ NYSE ˙ US26817Q8868

SecurityDX / Dynex Capital, Inc.
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership400,973 shares
Latest Disclosed Value $ 5,116,415
Citadel Advisors Llc ownership in DX / Dynex Capital, Inc.

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 400,973 shares of Dynex Capital, Inc. (US:DX) valued at $5,116,415 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 817,586 shares of Dynex Capital, Inc.. This represents a change in shares of -50.96% during the quarter. The current value of the position is $5,128,445 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (DX) in the form of stock options. The firm currently holds call options representing 246,500 of underlying shares valued at $3,145,340 USD and put options representing 140,300 of underlying shares valued at $1,790,228 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.

DX / Dynex Capital, Inc. 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)
2026-05-15 2026-03-31 13F DYNEX CAP COM 26817Q886 400,973 -416,613 -50.96 5,116 -55.33 0.0007
2026-02-17 2025-12-31 13F DYNEX CAP COM 26817Q886 817,586 76,312 10.29 11,454 25.73 0.0017
2025-11-14 2025-09-30 13F DYNEX CAP COM 26817Q886 741,274 430,569 138.58 9,110 139.99 0.0014
2025-08-14 2025-06-30 13F DYNEX CAP COM 26817Q886 310,705 -1,134,008 -78.49 3,797 -79.82 0.0007
2025-05-15 2025-03-31 13F DYNEX CAP COM 26817Q886 1,444,713 557,914 62.91 18,810 67.68 0.0036
2025-02-14 2024-12-31 13F DYNEX CAP COM 26817Q886 886,799 501,094 129.92 11,218 127.96 0.0019
2024-11-14 2024-09-30 13F DYNEX CAP COM 26817Q886 385,705 -1,087,005 -73.81 4,922 -72.01 0.0009
2024-08-14 2024-06-30 13F DYNEX CAP COM 26817Q886 1,472,710 -626,105 -29.83 17,584 -32.71 0.0036
2024-05-15 2024-03-31 13F DYNEX CAP COM 26817Q886 2,098,815 1,114,257 113.17 26,130 111.99 0.0050
2024-02-14 2023-12-31 13F DYNEX CAP COM 26817Q886 984,558 383,115 63.70 12,327 71.65 0.0025
2023-11-14 2023-09-30 13F DYNEX CAP COM 26817Q886 601,443 -312,148 -34.17 7,181 -37.57 0.0015
2023-08-14 2023-06-30 13F DYNEX CAP COM 26817Q886 913,591 724,572 383.33 11,502 402.27 0.0024
2023-05-15 2023-03-31 13F DYNEX CAP COM 26817Q886 189,019 -418,543 -68.89 2,291 -70.37 0.0005
2023-02-14 2022-12-31 13F DYNEX CAP COM 26817Q886 607,562 591,868 3,771.30 7,728 4,122.95 0.0018
2022-11-14 2022-09-30 13F DYNEX CAP COM 26817Q886 15,694 -214,779 -93.19 183 -95.01 0.0000
2022-08-15 2022-06-30 13F DYNEX CAP COM 26817Q886 230,473 163,355 243.38 3,669 237.22 0.0009
2022-05-16 2022-03-31 13F DYNEX CAP COM 26817Q886 67,118 -19,539 -22.55 1,088 -24.86 0.0002
2022-02-14 2021-12-31 13F DYNEX CAP COM 26817Q886 86,657 -25,685 -22.86 1,448 -25.40 0.0003
2021-11-15 2021-09-30 13F DYNEX CAP Cmn 26817Q886 112,342 -105,079 -48.33 1,941 -52.16 0.0004
2021-08-16 2021-06-30 13F DYNEX CAP COM 26817Q886 217,421 -29,057 -11.79 4,057 -13.05 0.0009
2021-05-21 2021-03-31 13F/A-1 DYNEX CAP COM 26817Q886 246,478 123,145 99.85 4,666 112.57 0.0011
2021-05-17 2021-03-31 13F DYNEX CAP COM 26817Q886 246,478 123,145 4,666 0.0011
2021-02-16 2020-12-31 13F DYNEX CAP COM 26817Q886 123,333 76,009 160.61 2,195 204.86 0.0006
2020-11-16 2020-09-30 13F DYNEX CAP COM 26817Q886 47,324 47,324 720 0.0002
2020-08-14 2020-06-30 13F DYNEX CAP Cmn 26817Q886 0 -379,138 -100.00 0 -100.00
2020-05-15 2020-03-31 13F DYNEX CAP Cmn 26817Q886 379,138 37,027 10.82 3,958 -31.71 0.0018
2020-02-14 2019-12-31 13F DYNEX CAP Cmn 26817Q886 342,111 85,905 33.53 5,796 53.05 0.0025
2019-11-14 2019-09-30 13F DYNEX CAP Cmn 26817Q886 256,206 60,912 31.19 3,787 15.77 0.0018
2019-08-14 2019-06-30 13F DYNEX CAP Cmn 26817Q886 195,294 -256,242 -56.75 3,271 18.95 0.0015
2019-05-15 2019-03-31 13F DYNEX CAP Cmn 26817Q506 451,536 333,102 281.26 2,750 306.20 0.0014
2019-02-14 2018-12-31 13F DYNEX CAP Cmn 26817Q506 118,434 58,386 97.23 677 76.30 0.0004
2018-11-13 2018-09-30 13F DYNEX CAP Cmn 26817Q506 60,048 -513,559 -89.53 384 -89.75 0.0002
2018-08-14 2018-06-30 13F/A-1 DYNEX CAP Cmn 26817Q506 573,607 370,441 182.33 3,745 178.03 0.0019
2018-08-10 2018-06-30 13F DYNEX CAP Cmn 26817Q506 573,607 370,441 3,745
2018-05-14 2018-03-31 13F/A-1 DYNEX CAP Cmn 26817Q506 203,166 -72,085 -26.19 1,347 -30.21 0.0007
2018-05-11 2018-03-31 13F DYNEX CAP Cmn 26817Q506 203,166 -72,085 1,347
2018-02-09 2017-12-31 13F DYNEX CAP Cmn 26817Q506 275,251 6,479 2.41 1,930 -1.23 0.0012
2017-11-09 2017-09-30 13F DYNEX CAP Cmn 26817Q506 268,772 63,049 30.65 1,954 33.74 0.0015
2017-08-11 2017-06-30 13F DYNEX CAP Cmn 26817Q506 205,723 15,848 8.35 1,461 8.54 0.0012
2017-05-12 2017-03-31 13F DYNEX CAP Cmn 26817Q506 189,875 123,559 186.32 1,346 197.79 0.0012
2017-02-10 2016-12-31 13F DYNEX CAP Cmn 26817Q506 66,316 -40,169 -37.72 452 -42.78 0.0005
2017-01-31 2016-09-30 13F/A-1 DYNEX CAP Cmn 26817Q506 106,485 71,666 205.82 790 226.45 0.0008
2016-11-10 2016-09-30 13F DYNEX CAPITAL INC CMN STK Cmn 26817Q506 106,485 790
2017-01-31 2016-06-30 13F/A-1 DYNEX CAP Cmn 26817Q506 34,819 -30,674 -46.84 242 -44.50 0.0003
2016-08-12 2016-06-30 13F DYNEX CAPITAL INC CMN STK Cmn 26817Q506 34,819 242
2017-01-31 2016-03-31 13F/A-1 DYNEX CAP Cmn 26817Q506 65,493 65,493 0.00 436 0.0006
2016-05-13 2016-03-31 13F DYNEX CAPITAL INC CMN STK Cmn 26817Q506 65,493 436
2017-01-31 2015-12-31 13F/A-1 DYNEX CAPITAL INC CMN STK Cmn 26817Q506 0 -19,208 -100.00 0 -100.00
2015-11-16 2015-09-30 13F DYNEX CAPITAL INC CMN STK Cmn 26817Q506 19,208 19,208 0.00 126 0.0001
2015-08-14 2015-06-30 13F DYNEX CAPITAL INC CMN STK Cmn 26817Q506 0 -41,777 -100.00 0 -100.00
2015-05-15 2015-03-31 13F DYNEX CAPITAL INC CMN STK Cmn 26817Q506 41,777 -8,770 -17.35 354 -15.11 0.0004
2015-02-17 2014-12-31 13F DYNEX CAPITAL INC CMN STK Cmn 26817Q506 50,547 15,266 43.27 417 46.32 0.0005
2014-11-14 2014-09-30 13F DYNEX CAPITAL INC CMN STK Cmn 26817Q506 35,281 8,915 33.81 285 22.32 0.0004
2014-08-14 2014-06-30 13F DYNEX CAPITAL INC CMN STK Cmn 26817Q506 26,366 -1,001 -3.66 233 -4.51 0.0003
2014-05-15 2014-03-31 13F DYNEX CAPITAL INC CMN STK Cmn 26817Q506 27,367 5,091 22.85 244 25.13 0.0003
2013-11-14 2013-09-30 13F DYNEX CAPITAL INC CMN STK Cmn 26817Q506 22,276 22,276 195 0.0003
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
(%)
2026-05-15 2026-03-31 13F DYNEX CAP COM Call 246,500 1,872.00 3,145 1,697.14 n/a n/a n/a
2026-02-17 2025-12-31 13F DYNEX CAP COM Call 12,500 175 n/a n/a n/a
2025-11-14 2025-09-30 13F DYNEX CAP COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F DYNEX CAP COM Call 57,500 -8.15 703 -13.87 n/a n/a n/a
2025-05-15 2025-03-31 13F DYNEX CAP COM Call 62,600 49.76 815 54.36 n/a n/a n/a
2025-02-14 2024-12-31 13F DYNEX CAP COM Call 41,800 -2.34 529 -3.30 n/a n/a n/a
2024-11-14 2024-09-30 13F DYNEX CAP COM Call 42,800 -8.35 546 -1.97 n/a n/a n/a
2024-08-14 2024-06-30 13F DYNEX CAP COM Call 46,700 -54.66 558 -56.55 n/a n/a n/a
2024-05-15 2024-03-31 13F DYNEX CAP COM Call 103,000 21.75 1,282 21.06 n/a n/a n/a
2024-02-14 2023-12-31 13F DYNEX CAP COM Call 84,600 4.32 1,059 9.40 n/a n/a n/a
2023-11-14 2023-09-30 13F DYNEX CAP COM Call 81,100 47.19 968 39.68 n/a n/a n/a
2023-08-14 2023-06-30 13F DYNEX CAP COM Call 55,100 -52.91 694 -51.13 n/a n/a n/a
2023-05-15 2023-03-31 13F DYNEX CAP COM Call 117,000 64.56 1,418 56.86 n/a n/a n/a
2023-02-14 2022-12-31 13F DYNEX CAP COM Call 71,100 114.80 904 134.20 n/a n/a n/a
2022-11-14 2022-09-30 13F DYNEX CAP COM Call 33,100 -46.44 386 -60.77 n/a n/a n/a
2022-08-15 2022-06-30 13F DYNEX CAP COM Call 61,800 93.73 984 90.33 n/a n/a n/a
2022-05-16 2022-03-31 13F DYNEX CAP COM Call 31,900 66.15 517 61.06 n/a n/a n/a
2022-02-14 2021-12-31 13F DYNEX CAP COM Call 19,200 321 n/a n/a n/a
2021-08-16 2021-06-30 13F DYNEX CAP COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-05-21 2021-03-31 13F/A DYNEX CAP COM Call 10,000 -5.66 189 0.00 n/a n/a n/a
2021-05-17 2021-03-31 13F DYNEX CAP COM Call 10,000 189 n/a n/a n/a
2021-02-16 2020-12-31 13F DYNEX CAP COM Call 10,600 -60.30 189 -53.45 n/a n/a n/a
2020-11-16 2020-09-30 13F DYNEX CAP COM Call 26,700 -8.25 406 -2.40 n/a n/a n/a
2020-08-14 2020-06-30 13F DYNEX CAP Cmn Call 29,100 416 n/a n/a n/a
Disclosed Put 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
(%)
2026-05-15 2026-03-31 13F DYNEX CAP COM Put 140,300 121.64 1,790 102.03 n/a n/a n/a
2026-02-17 2025-12-31 13F DYNEX CAP COM Put 63,300 -57.23 887 -51.27 n/a n/a n/a
2025-11-14 2025-09-30 13F DYNEX CAP COM Put 148,000 234.09 1,819 236.04 n/a n/a n/a
2025-08-14 2025-06-30 13F DYNEX CAP COM Put 44,300 275.42 541 253.59 n/a n/a n/a
2025-05-15 2025-03-31 13F DYNEX CAP COM Put 11,800 -70.20 154 -69.40 n/a n/a n/a
2025-02-14 2024-12-31 13F DYNEX CAP COM Put 39,600 250.44 501 247.22 n/a n/a n/a
2024-11-14 2024-09-30 13F DYNEX CAP COM Put 11,300 264.52 144 289.19 n/a n/a n/a
2024-08-14 2024-06-30 13F DYNEX CAP COM Put 3,100 -83.15 37 -83.84 n/a n/a n/a
2024-05-15 2024-03-31 13F DYNEX CAP COM Put 18,400 -35.44 229 -35.67 n/a n/a n/a
2024-02-14 2023-12-31 13F DYNEX CAP COM Put 28,500 80.38 357 89.36 n/a n/a n/a
2023-11-14 2023-09-30 13F DYNEX CAP COM Put 15,800 -36.55 189 -39.94 n/a n/a n/a
2023-08-14 2023-06-30 13F DYNEX CAP COM Put 24,900 68.24 313 74.86 n/a n/a n/a
2023-05-15 2023-03-31 13F DYNEX CAP COM Put 14,800 97.33 179 88.42 n/a n/a n/a
2023-02-14 2022-12-31 13F DYNEX CAP COM Put 7,500 95 n/a n/a n/a
2022-08-15 2022-06-30 13F DYNEX CAP COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-16 2022-03-31 13F DYNEX CAP COM Put 18,400 -71.74 298 -72.61 n/a n/a n/a
2022-02-14 2021-12-31 13F DYNEX CAP COM Put 65,100 -54.95 1,088 -56.43 n/a n/a n/a
2021-11-15 2021-09-30 13F DYNEX CAP Cmn Put 144,500 32.81 2,497 23.00 n/a n/a n/a
2021-08-16 2021-06-30 13F DYNEX CAP COM Put 108,800 9.13 2,030 7.58 n/a n/a n/a
2021-05-21 2021-03-31 13F/A DYNEX CAP COM Put 99,700 139.09 1,887 154.31 n/a n/a n/a
2021-05-17 2021-03-31 13F DYNEX CAP COM Put 99,700 1,887 n/a n/a n/a
2021-02-16 2020-12-31 13F DYNEX CAP COM Put 41,700 -16.77 742 -2.62 n/a n/a n/a
2020-11-16 2020-09-30 13F DYNEX CAP COM Put 50,100 762 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.