제프리스 파이낸셜 그룹(Jefferies Financial Group)
MX ˙ BMV ˙ US47233W1099
SecurityMX:JEF / Jefferies Financial Group Inc.
InstitutionPeak6 Llc
Latest Disclosed Ownership42,477 shares
Latest Disclosed Value $ 1,753,026
Peak6 Llc ownership in JEF / Jefferies Financial Group Inc.

On May 14, 2026 - Peak6 Llc filed a 13F-HR form disclosing ownership of 42,477 shares of Jefferies Financial Group Inc. (MX:JEF) valued at $1,753,026 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 12, 2026 disclosing 169,729 shares of Jefferies Financial Group Inc.. This represents a change in shares of -74.97% during the quarter.

Peak6 Llc has a history of taking positions in derivatives of the underlying security (JEF) in the form of stock options. The firm currently holds call options representing 4,800 of underlying shares valued at $198,096 USD and put options representing 76,700 of underlying shares valued at $3,165,409 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.

MX:JEF / Jefferies Financial Group 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)
2026-05-14 2026-03-31 13F JEFFERIES FINANCIAL GROUP IN COM 47233W109 42,477 -127,252 -74.97 1,753 -83.33 0.0040
2026-03-12 2025-12-31 13F/A-1 JEFFERIES FINL GROUP COM 47233W109 169,729 -31,166 -15.51 10,518 -19.97 0.0196
2026-02-13 2025-12-31 13F JEFFERIES FINL GROUP COM 47233W109 169,729 -31,166 10,518
2026-03-30 2025-09-30 13F/A-1 JEFFERIES FINL GROUP COM 47233W109 200,895 13,338 7.11 13,143 28.13 0.0192
2025-11-14 2025-09-30 13F JEFFERIES FINL GROUP COM 47233W109 200,895 13,338 13,143 0.0193
2026-03-26 2025-06-30 13F/A-2 JEFFERIESFINLGROUPINC COM 47233W109 187,557 135,905 263.12 10,257 270.82 0.0190
2025-11-13 2025-06-30 13F/A-1 JEFFERIESFINLGROUPINC COM 47233W109 187,557 135,905 10,257 0.0191
2025-08-14 2025-06-30 13F JEFFERIESFINLGROUPINC COM 47233W109 187,557 135,905 10,257 0.0188
2025-05-14 2025-03-31 13F JEFFERIES FINL GROUP COM 47233W109 51,652 51,652 2,767 0.0062
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
(%)
2026-05-14 2026-03-31 13F JEFFERIES FINANCIAL GROUP IN COM Call 4,800 -18.64 198 -45.75 n/a n/a n/a
2026-03-12 2025-12-31 13F/A JEFFERIES FINL GROUP COM Call 5,900 7.27 366 1.67 n/a n/a n/a
2026-02-13 2025-12-31 13F JEFFERIES FINL GROUP COM Call 5,900 366 n/a n/a n/a
2026-03-30 2025-09-30 13F/A JEFFERIES FINL GROUP COM Call 5,500 -92.17 360 -90.65 n/a n/a n/a
2025-11-14 2025-09-30 13F JEFFERIES FINL GROUP COM Call 5,500 360 n/a n/a n/a
2025-11-13 2025-06-30 13F/A JEFFERIESFINLGROUPINC COM Call 70,200 3,839 n/a n/a n/a
2026-03-26 2025-06-30 13F/A JEFFERIESFINLGROUPINC COM Call 70,200 201.29 3,839 207.61 n/a n/a n/a
2025-08-14 2025-06-30 13F JEFFERIESFINLGROUPINC COM Call 70,200 3,839 n/a n/a n/a
2025-05-14 2025-03-31 13F JEFFERIES FINL GROUP COM Call 23,300 -55.19 1,248 -69.38 n/a n/a n/a
2025-02-13 2024-12-31 13F JEFFERIES FINL GROUP COM Call 52,000 4,077 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
(%)
2026-05-14 2026-03-31 13F JEFFERIES FINANCIAL GROUP IN COM Put 76,700 253.46 3,165 135.49 n/a n/a n/a
2026-03-12 2025-12-31 13F/A JEFFERIES FINL GROUP COM Put 21,700 -35.22 1,345 -38.66 n/a n/a n/a
2026-02-13 2025-12-31 13F JEFFERIES FINL GROUP COM Put 21,700 1,345 n/a n/a n/a
2026-03-30 2025-09-30 13F/A JEFFERIES FINL GROUP COM Put 33,500 1,096.43 2,192 1,332.03 n/a n/a n/a
2025-11-14 2025-09-30 13F JEFFERIES FINL GROUP COM Put 33,500 2,192 n/a n/a n/a
2025-11-13 2025-06-30 13F/A JEFFERIESFINLGROUPINC COM Put 2,800 153 n/a n/a n/a
2026-03-26 2025-06-30 13F/A JEFFERIESFINLGROUPINC COM Put 2,800 153 n/a n/a n/a
2025-08-14 2025-06-30 13F JEFFERIESFINLGROUPINC COM Put 2,800 153 n/a n/a n/a
2025-05-14 2025-03-31 13F JEFFERIES FINL GROUP COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-13 2024-12-31 13F JEFFERIES FINL GROUP COM Put 26,800 2,101 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.