FactSet Research Systems Inc.
US ˙ NYSE ˙ US3030751057

SecurityFDS / FactSet Research Systems Inc.
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Parallel Advisors, LLC ownership in FDS / FactSet Research Systems Inc.

On June 2, 2026 - Parallel Advisors, LLC filed a 13F-HR/A form disclosing ownership of 0 shares of FactSet Research Systems Inc. (US:FDS) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 1,207 shares of FactSet Research Systems Inc.. 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 (FDS) 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.

FDS / FactSet Research Systems 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)
2026-06-02 2026-03-31 13F/A-1 FACTSET RESEARCH SYS Stock 303075105 0 -1,207 -100.00 0 -100.00
2026-02-11 2025-12-31 13F FACTSET RESEARCH SYS Stock 303075105 1,207 921 322.03 350 326.83 0.0064
2025-11-13 2025-09-30 13F FACTSET RESEARCH SYS Stock 303075105 286 -29 -9.21 82 -41.84 0.0015
2025-07-08 2025-06-30 13F FACTSET RESEARCH SYS Stock 303075105 315 62 24.51 141 23.68 0.0028
2025-04-08 2025-03-31 13F FACTSET RESEARCH SYS Stock 303075105 253 -19 -6.99 115 -12.98 0.0026
2025-02-10 2024-12-31 13F FACTSET RESEARCH SYS Stock 303075105 272 8 3.03 131 8.26 0.0029
2024-11-13 2024-09-30 13F FACTSET RESEARCH SYS Stock 303075105 264 -39 -12.87 122 -1.63 0.0029
2024-08-08 2024-06-30 13F FACTSET RESEARCH SYS Stock 303075105 303 -24 -7.34 124 -16.89 0.0032
2024-05-06 2024-03-31 13F FACTSET RESEARCH SYS Stock 303075105 327 -72 -18.05 149 -22.11 0.0040
2024-02-12 2023-12-31 13F FACTSET RESEARCH SYS Stock 303075105 399 80 25.08 190 36.69 0.0057
2024-05-20 2023-09-30 13F/A-1 FACTSET RESEARCH SYS Stock 303075105 319 116 57.14 140 71.60 0.0047
2023-11-14 2023-09-30 13F FACTSET RESEARCH SYS Stock 303075105 319 116 140 0.0047
2024-05-20 2023-06-30 13F/A-1 FACTSET RESEARCH SYS Stock 303075105 203 -13 -6.02 81 -8.99 0.0026
2023-08-04 2023-06-30 13F FACTSET RESEARCH SYS Stock 303075105 203 -13 81 0.0026
2024-05-20 2023-03-31 13F/A-1 FACTSET RESEARCH SYS Stock 303075105 216 -1 -0.46 90 2.30 0.0030
2023-04-25 2023-03-31 13F FACTSET RESEARCH SYS Stock 303075105 216 -1 90 0.0030
2023-02-06 2022-12-31 13F FACTSET RESEARCH SYS Stock 303075105 217 -21 -8.82 87 -8.42 0.0038
2022-11-10 2022-09-30 13F FACTSET RESEARCH SYS Stock 303075105 238 35 17.24 95 21.79 0.0044
2022-08-01 2022-06-30 13F FACTSET RESEARCH SYS Stock 303075105 203 -28 -12.12 78 -23.53 0.0036
2022-04-28 2022-03-31 13F FACTSET RESEARCH SYS Stock 303075105 231 -285 -55.23 102 -59.36 0.0040
2022-01-20 2021-12-31 13F FACTSET RESEARCH SYS Stock 303075105 516 364 239.47 251 318.33 0.0093
2021-11-02 2021-09-30 13F/A-1 FACTSET RESEARCH SYS Stock 303075105 152 43 39.45 60 62.16 0.0024
2021-08-06 2021-06-30 13F FACTSET RESEARCH SYS Stock 303075105 109 10 10.10 37 19.35 0.0016
2021-04-23 2021-03-31 13F FACTSET RESEARCH SYS Stock 303075105 99 -2 -1.98 31 -8.82 0.0015
2021-02-02 2020-12-31 13F FACTSET RESEARCH SYS Stock 303075105 101 -224 -68.92 34 -68.81 0.0018
2020-10-27 2020-09-30 13F FACTSET RESEARCH SYS Stock 303075105 325 -1,571 -82.86 109 -82.48 0.0067
2020-07-16 2020-06-30 13F FACTSET RESEARCH SYS Stock 303075105 1,896 1,722 989.66 622 1,282.22 0.0406
2020-04-27 2020-03-31 13F FACTSET RESEARCH SYS Stock 303075105 174 17 10.83 45 7.14 0.0036
2020-01-30 2019-12-31 13F FACTSET RESEARCH SYS Stock 303075105 157 -25 -13.74 42 -4.55 0.0032
2019-11-01 2019-09-30 13F FACTSET RESEARCH SYS Stock 303075105 182 14 8.33 44 -8.33 0.0038
2019-08-05 2019-06-30 13F FACTSET RESEARCH SYS Stock 303075105 168 0 0.00 48 14.29 0.0047
2019-05-01 2019-03-31 13F FACTSET RESEARCH SYS Stock 303075105 168 -16 -8.70 42 16.67 0.0047
2019-02-05 2018-12-31 13F FACTSET RESEARCH SYS Stock 303075105 184 16 9.52 36 -5.26 0.0050
2018-11-01 2018-09-30 13F FACTSET RESEARCH SYS Stock 303075105 168 0 0.00 38 15.15 0.0047
2018-07-30 2018-06-30 13F FACTSET RESEARCH SYS Stock 303075105 168 53 46.09 33 43.48 0.0047
2018-05-08 2018-03-31 13F FACTSET RESEARCH SYS Stock 303075105 115 23 25.00 23 27.78 0.0036
2018-02-13 2017-12-31 13F FACTSET RESH SYS INC COM Stock 303075105 92 0 0.00 18 0.00 0.0029
2017-11-15 2017-09-30 13F/A-1 FACTSET RESH SYS INC COM Stock 303075105 92 19 26.03 18 50.00 0.0031
2017-08-07 2017-06-30 13F FACTSET RESH SYS INC COM Stock 303075105 73 -13 -15.12 12 -14.29 0.0023
2017-05-12 2017-03-31 13F/A-1 FACTSET RESH SYS INC COM Stock 303075105 86 21 32.31 14 27.27 0.0028
2017-05-12 2017-03-31 13F FACTSET RESH SYS INC COM Stock 303075105 86 14
2017-02-14 2016-12-31 13F FACTSET RESH SYS INC COM Stock 303075105 65 65 11 0.0026
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 FACTSET RESEARCH SYS Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F FACTSET RESEARCH SYS Stock Call 109 37 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
(%)
2024-05-20 2023-09-30 13F/A FACTSET RESEARCH SEP 15 23 USD360 100 SHS Options Put 0 -100.00 0 n/a n/a n/a
2023-11-14 2023-09-30 13F FACTSET RESEARCH SEP 15 23 USD360 100 SHS Options Put 0 0 n/a n/a n/a
2024-05-20 2023-06-30 13F/A FACTSET RESEARCH SEP 15 23 USD360 100 SHS Options Put 700 0 n/a n/a n/a
2023-08-04 2023-06-30 13F FACTSET RESEARCH SEP 15 23 USD360 100 SHS Options Put 700 0 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.