SuRo Capital Corp.
US ˙ NasdaqGS ˙ US86887Q1094

SecuritySSSS / SuRo Capital Corp.
InstitutionSimplex Trading, Llc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Simplex Trading, Llc ownership in SSSS / SuRo Capital Corp.

On May 14, 2026 - Simplex Trading, Llc filed a 13F-HR form disclosing ownership of 0 shares of SuRo Capital Corp. (US:SSSS) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 9,347 shares of SuRo Capital Corp.. The current value of the position is $0 USD.

Simplex Trading, Llc has a history of taking positions in derivatives of the underlying security (SSSS) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put 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.

SSSS / SuRo Capital Corp. 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)
2026-05-14 2026-03-31 13F SURO CAPITAL COM 86887Q109 0 -100.00 0
2026-02-11 2025-12-31 13F SURO CAPITAL COM 86887Q109 9,347 9,347 88 0.0000
2025-11-12 2025-09-30 13F SURO CAPITAL COM 86887Q109 0 -5,200 -100.00 0 0.0000
2025-08-05 2025-06-30 13F SURO CAPITAL COM 86887Q109 5,200 -60,440 -92.08 0 0.0000
2025-05-12 2025-03-31 13F SURO CAPITAL COM 86887Q109 65,640 27,672 72.88 0 0.0002
2025-02-11 2024-12-31 13F SURO CAPITAL COM 86887Q109 37,968 12,860 51.22 0 0.0001
2024-11-08 2024-09-30 13F SURO CAPITAL COM 86887Q109 25,108 18,610 286.40 0 0.0001
2024-07-25 2024-06-30 13F SURO CAPITAL COM 86887Q109 6,498 5,257 423.61 0 0.0000
2024-04-25 2024-03-31 13F SURO CAPITAL COM 86887Q109 1,241 -10,192 -89.15 0 0.0000
2024-02-02 2023-12-31 13F SURO CAPITAL COM 86887Q109 11,433 8,390 275.71 0 0.0000
2023-11-01 2023-09-30 13F SURO CAPITAL COM 86887Q109 3,043 357 13.29 0 0.0000
2023-08-04 2023-06-30 13F SURO CAPITAL COM 86887Q109 2,686 -5,419 -66.86 0 0.0000
2023-04-27 2023-03-31 13F SURO CAPITAL COM 86887Q109 8,105 209 2.65 0 0.0000
2023-02-02 2022-12-31 13F SURO CAPITAL COM 86887Q109 7,896 7,896 0 0.0000
2022-08-03 2022-06-30 13F SURO CAPITAL COM 86887Q109 0 -1,011 -100.00 0 -100.00
2022-05-02 2022-03-31 13F SURO CAPITAL COM 86887Q109 1,011 1,011 8 0.0000
2021-02-02 2020-12-31 13F SURO CAPITAL COM 86887Q109 0 -5,148 -100.00 0 -100.00
2020-10-14 2020-09-30 13F SURO CAPITAL COM 86887Q109 5,148 2,695 109.87 55 175.00 0.0001
2020-07-13 2020-06-30 13F SURO CAPITAL COM 86887Q109 2,453 2,453 20 0.0000
2019-07-26 2019-06-30 13F GSV CAP COM 36191J101 0 -17,486 -100.00 0 -100.00
2019-04-18 2019-03-31 13F GSV CAP COM 36191J101 17,486 17,486 132 0.0004
2018-04-26 2018-03-31 13F GSV CAP COM 36191J101 0 -3,302 -100.00 0 -100.00
2018-01-10 2017-12-31 13F GSV CAP COM 36191J101 3,302 3,052 1,220.80 17 1,600.00 0.0007
2017-10-25 2017-09-30 13F GSV CAP COM 36191J101 250 -7,776 -96.89 1 -97.06 0.0000
2017-07-12 2017-06-30 13F GSV CAP COM 36191J101 8,026 -389 -4.62 34 -8.11 0.0015
2017-04-21 2017-03-31 13F GSV CAP COM 36191J101 8,415 5,372 176.54 37 146.67 0.0016
2017-01-11 2016-12-31 13F GSV CAP COM 36191J101 3,043 1,134 59.40 15 66.67 0.0009
2016-10-07 2016-09-30 13F GSV CAP COM 36191J101 1,909 36 1.92 9 0.00 0.0006
2016-07-18 2016-06-30 13F GSV CAP COM 36191J101 1,873 -240 -11.36 9 -18.18 0.0006
2016-04-14 2016-03-31 13F GSV CAP COM 36191J101 2,113 2,113 11 0.0009
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
(%)
2020-07-13 2020-06-30 13F SUTTER ROCK CAP CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-04-29 2020-03-31 13F SUTTER ROCK CAP CALL Call 7 600.00 4 n/a n/a n/a
2020-02-05 2019-12-31 13F SUTTER ROCK CAP CALL Call 1 -98.48 0 -100.00 n/a n/a n/a
2019-10-15 2019-09-30 13F SUTTER ROCK CAP CALL Call 66 -32.65 41 -33.87 n/a n/a n/a
2019-07-26 2019-06-30 13F GSV CAP CALL Call 98 -62.45 62 -68.53 n/a n/a n/a
2019-04-18 2019-03-31 13F GSV CAP CALL Call 261 197 n/a n/a n/a
2019-01-16 2018-12-31 13F GSV CAP CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-10-23 2018-09-30 13F GSV CAP CALL Call 121 23.47 83 23.88 n/a n/a n/a
2018-07-30 2018-06-30 13F GSV CAP CALL Call 98 -76.72 67 131.03 n/a n/a n/a
2018-04-26 2018-03-31 13F GSV CAP CALL Call 421 3,727.27 29 n/a n/a n/a
2018-01-10 2017-12-31 13F GSV CAP CALL Call 11 0 n/a n/a n/a
2017-10-25 2017-09-30 13F GSV CAP CALL Call 0 -100.00 0 n/a n/a n/a
2017-07-12 2017-06-30 13F GSV CAP CALL Call 8 -84.31 0 -100.00 n/a n/a n/a
2017-04-21 2017-03-31 13F GSV CAP CALL Call 51 0.00 1 -66.67 n/a n/a n/a
2017-01-11 2016-12-31 13F GSV CAP CALL Call 51 3 n/a n/a n/a
2016-07-18 2016-06-30 13F GSV CAP CALL Call 0 -100.00 0 n/a n/a n/a
2016-04-14 2016-03-31 13F GSV CAP CALL Call 1 -98.97 0 n/a n/a n/a
2016-01-20 2015-12-31 13F GSV CAP CALL Call 97 51.56 0 -100.00 n/a n/a n/a
2015-10-08 2015-09-30 13F GSV CAP CALL Call 64 56.10 3 -70.00 n/a n/a n/a
2015-07-08 2015-06-30 13F GSV CAP CALL Call 41 105.00 10 900.00 n/a n/a n/a
2015-04-21 2015-03-31 13F GSV CAP CALL Call 20 81.82 1 0.00 n/a n/a n/a
2015-03-04 2014-12-31 13F GSV CAP CALL Call 11 1 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
(%)
2020-07-13 2020-06-30 13F SUTTER ROCK CAP PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-04-29 2020-03-31 13F SUTTER ROCK CAP PUT Put 111 -6.72 65 -15.58 n/a n/a n/a
2020-02-05 2019-12-31 13F SUTTER ROCK CAP PUT Put 119 310.34 77 327.78 n/a n/a n/a
2019-10-15 2019-09-30 13F SUTTER ROCK CAP PUT Put 29 -53.23 18 -53.85 n/a n/a n/a
2019-07-26 2019-06-30 13F GSV CAP PUT Put 62 -60.51 39 -67.23 n/a n/a n/a
2019-04-18 2019-03-31 13F GSV CAP PUT Put 157 15,600.00 119 n/a n/a n/a
2019-01-16 2018-12-31 13F GSV CAP PUT Put 1 0 n/a n/a n/a
2018-10-23 2018-09-30 13F GSV CAP PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-07-30 2018-06-30 13F GSV CAP PUT Put 38 -75.80 26 -29.73 n/a n/a n/a
2018-04-26 2018-03-31 13F GSV CAP PUT Put 157 336.11 37 1,133.33 n/a n/a n/a
2018-01-10 2017-12-31 13F GSV CAP PUT Put 36 3 n/a n/a n/a
2017-10-25 2017-09-30 13F GSV CAP PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-07-12 2017-06-30 13F GSV CAP PUT Put 109 -37.36 8 -38.46 n/a n/a n/a
2017-04-21 2017-03-31 13F GSV CAP PUT Put 174 148.57 13 -27.78 n/a n/a n/a
2017-01-11 2016-12-31 13F GSV CAP PUT Put 70 0.00 18 n/a n/a n/a
2016-10-07 2016-09-30 13F GSV CAP PUT Put 0 -100.00 0 n/a n/a n/a
2016-07-18 2016-06-30 13F GSV CAP PUT Put 13 -55.17 0 -100.00 n/a n/a n/a
2016-04-14 2016-03-31 13F GSV CAP PUT Put 29 4 n/a n/a n/a
2016-01-20 2015-12-31 13F GSV CAP PUT Put 0 -100.00 0 n/a n/a n/a
2015-10-08 2015-09-30 13F GSV CAP PUT Put 3 0 n/a n/a n/a
2015-04-21 2015-03-31 13F GSV CAP PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-03-04 2014-12-31 13F GSV CAP PUT Put 11 2 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.