Olin Corporation
US ˙ NYSE ˙ US6806652052

SecurityOLN / Olin Corporation
InstitutionSquarepoint Ops LLC
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Squarepoint Ops LLC ownership in OLN / Olin Corporation

On May 15, 2026 - Squarepoint Ops LLC filed a 13F-HR form disclosing ownership of 0 shares of Olin Corporation (US:OLN) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 38,148 shares of Olin Corporation. The current value of the position is $0 USD.

Squarepoint Ops LLC has a history of taking positions in derivatives of the underlying security (OLN) in the form of stock options. The firm currently holds call options representing 8,900 of underlying shares valued at $264,597 USD and put options representing 18,400 of underlying shares valued at $547,032 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.

OLN / Olin Corporation 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 OLIN COM PAR $1 680665205 0 -100.00 0
2026-02-13 2025-12-31 13F OLIN COM PAR $1 680665205 38,148 -20,837 -35.33 795 -46.13 0.0008
2025-11-14 2025-09-30 13F OLIN COM PAR $1 680665205 58,985 -63,695 -51.92 1,474 -40.18 0.0015
2025-08-27 2025-06-30 13F/A-1 OLIN COM PAR $1 680665205 122,680 8,662 7.60 2,465 -10.82 0.0026
2025-08-14 2025-06-30 13F OLIN COM PAR $1 680665205 122,680 8,662 2,465 0.0026
2025-08-27 2025-03-31 13F/A-1 OLIN COM PAR $1 680665205 114,018 -618,281 -84.43 2,764 -88.84 0.0034
2025-05-15 2025-03-31 13F OLIN COM PAR $1 680665205 114,018 -618,281 2,764 0.0034
2025-02-14 2024-12-31 13F OLIN COM PAR $1 680665205 732,299 -134,939 -15.56 24,752 -40.52 0.0244
2024-11-14 2024-09-30 13F OLIN COM PAR $1 680665205 867,238 805,356 1,301.44 41,610 1,326.47 0.0651
2024-08-14 2024-06-30 13F OLIN COM PAR $1 680665205 61,882 61,882 2,918 0.0048
2024-05-15 2024-03-31 13F OLIN COM PAR $1 680665205 0 -91,906 -100.00 0 -100.00
2024-02-14 2023-12-31 13F OLIN COM PAR $1 680665205 91,906 45,150 96.57 4,958 112.24 0.0094
2023-11-14 2023-09-30 13F OLIN COM PAR $1 680665205 46,756 46,756 2,337 0.0058
2023-08-14 2023-06-30 13F OLIN COM PAR $1 680665205 0 -84,683 -100.00 0 -100.00
2023-05-15 2023-03-31 13F OLIN COM PAR $1 680665205 84,683 62,727 285.69 4,700 304.39 0.0192
2023-02-14 2022-12-31 13F OLIN COM PAR $1 680665205 21,956 3,906 21.64 1,162 50.13 0.0046
2022-11-14 2022-09-30 13F OLIN COM PAR $1 680665205 18,050 18,050 774 0.0039
2022-02-14 2021-12-31 13F OLIN COM PAR $1 680665205 0 -64,773 -100.00 0 -100.00
2021-11-15 2021-09-30 13F OLIN COM PAR $1 680665205 64,773 64,773 3,125 0.0090
2021-05-17 2021-03-31 13F OLIN COM PAR $1 680665205 0 -14,083 -100.00 0 -100.00
2021-02-16 2020-12-31 13F OLIN COM PAR $1 680665205 14,083 -118,782 -89.40 346 -78.97 0.0026
2020-11-16 2020-09-30 13F OLIN COM PAR $1 680665205 132,865 -139,090 -51.14 1,645 -47.36 0.0222
2020-08-14 2020-06-30 13F OLIN COM PAR $1 680665205 271,955 255,986 1,603.02 3,125 1,580.11 0.0506
2020-05-15 2020-03-31 13F OLIN COM PAR $1 680665205 15,969 -353,157 -95.67 186 -97.08 0.0048
2020-02-14 2019-12-31 13F OLIN COM PAR $1 680665205 369,126 92,657 33.51 6,367 23.03 0.0379
2019-11-14 2019-09-30 13F OLIN COM PAR $1 680665205 276,469 155,861 129.23 5,175 95.80 0.0462
2019-08-14 2019-06-30 13F OLIN COM PAR $1 680665205 120,608 120,608 -56.38 2,643 -48.93 0.0258
2019-05-15 2019-03-31 13F OLIN COM PAR $1 680665205 0 -48,895 -100.00 0 -100.00
2019-02-14 2018-12-31 13F OLIN COM PAR $1 680665205 48,895 -437,973 -89.96 983 -92.14 0.0114
2018-11-14 2018-09-30 13F OLIN COM PAR $1 680665205 486,868 220,154 82.54 12,503 63.22 0.1496
2018-08-14 2018-06-30 13F OLIN COM PAR $1 680665205 266,714 -114,181 -29.98 7,660 -33.82 0.1015
2018-05-15 2018-03-31 13F OLIN COM PAR $1 680665205 380,895 198,766 109.13 11,575 78.63 0.1838
2018-02-14 2017-12-31 13F OLIN COM PAR $1 680665205 182,129 118,411 185.84 6,480 196.98 0.1129
2017-11-14 2017-09-30 13F OLIN COM PAR $1 680665205 63,718 -302,832 -82.62 2,182 -80.34 0.0420
2017-08-14 2017-06-30 13F OLIN COM PAR $1 680665205 366,550 225,598 160.05 11,099 139.56 0.2184
2017-05-15 2017-03-31 13F OLIN COM PAR $1 680665205 140,952 140,952 -61.55 4,633 -58.26 0.1278
2016-02-16 2015-12-31 13F OLIN COM PAR $1 680665205 0 -39,756 -100.00 0 -100.00
2015-11-16 2015-09-30 13F OLIN COM PAR $1 680665205 39,756 17,041 75.02 668 9.15 0.1667
2015-08-14 2015-06-30 13F OLIN COM PAR $1 680665205 22,715 22,715 612 0.1986
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 OLIN COM PAR $1 Call 8,900 265 n/a n/a n/a
2026-02-13 2025-12-31 13F OLIN COM PAR $1 Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-14 2025-09-30 13F OLIN COM PAR $1 Call 35,900 -20.93 897 -1.64 n/a n/a n/a
2025-08-27 2025-06-30 13F/A OLIN COM PAR $1 Call 45,400 320.37 912 249.43 n/a n/a n/a
2025-08-14 2025-06-30 13F OLIN COM PAR $1 Call 45,400 912 n/a n/a n/a
2025-08-27 2025-03-31 13F/A OLIN COM PAR $1 Call 10,800 -46.27 262 -61.56 n/a n/a n/a
2025-05-15 2025-03-31 13F OLIN COM PAR $1 Call 10,800 262 n/a n/a n/a
2025-02-14 2024-12-31 13F OLIN COM PAR $1 Call 20,100 -30.69 679 -51.19 n/a n/a n/a
2024-11-14 2024-09-30 13F OLIN COM PAR $1 Call 29,000 1,391 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 OLIN COM PAR $1 Put 18,400 547 n/a n/a n/a
2025-11-14 2025-09-30 13F OLIN COM PAR $1 Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-27 2025-06-30 13F/A OLIN COM PAR $1 Put 27,600 -11.25 554 -26.43 n/a n/a n/a
2025-08-14 2025-06-30 13F OLIN COM PAR $1 Put 27,600 554 n/a n/a n/a
2025-08-27 2025-03-31 13F/A OLIN COM PAR $1 Put 31,100 754 n/a n/a n/a
2025-05-15 2025-03-31 13F OLIN COM PAR $1 Put 31,100 754 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.