Citigroup Inc.
MX ˙ BMV ˙ US1729674242
SecurityMX:C / Citigroup Inc.
InstitutionBlueCrest Capital Management Ltd
ManagerMichael Platt
Latest Disclosed Ownership269,604 shares
Latest Disclosed Value $ 30,575,790
BlueCrest Capital Management Ltd ownership in C / Citigroup Inc.

On May 15, 2026 - BlueCrest Capital Management Ltd filed a 13F-HR form disclosing ownership of 269,604 shares of Citigroup Inc. (MX:C) valued at $30,575,790 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 512,538 shares of Citigroup Inc.. This represents a change in shares of -47.40% during the quarter.

BlueCrest Capital Management Ltd has a history of taking positions in derivatives of the underlying security (C) in the form of stock options.

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:C / Citigroup 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 CITIGROUP COM NEW 172967424 269,604 -242,934 -47.40 30,576 -48.88 1.8060
2026-02-17 2025-12-31 13F CITIGROUP COM NEW 172967424 512,538 512,538 59,808 1.7958
2020-05-15 2020-03-31 13F CITIGROUP COM NEW 172967424 0 -50,436 -100.00 0 -100.00
2020-02-14 2019-12-31 13F CITIGROUP COM NEW 172967424 50,436 26,238 108.43 4,029 140.97 0.2601
2019-11-14 2019-09-30 13F CITIGROUP COM NEW 172967424 24,198 24,198 1,672 0.1153
2019-08-14 2019-06-30 13F CITIGROUP COM NEW 172967424 0 -119,744 -100.00 0 -100.00
2019-05-15 2019-03-31 13F CITIGROUP COM NEW 172967424 119,744 -21,931 -15.48 7,450 1.00 0.2975
2019-02-14 2018-12-31 13F CITIGROUP COM NEW 172967424 141,675 98,672 229.45 7,376 139.09 0.3794
2018-11-14 2018-09-30 13F CITIGROUP COM NEW 172967424 43,003 -128,216 -74.88 3,085 -73.08 0.0823
2018-08-14 2018-06-30 13F CITIGROUP COM NEW 172967424 171,219 -274,156 -61.56 11,458 -61.89 0.2969
2018-05-15 2018-03-31 13F CITIGROUP COM NEW 172967424 445,375 270,231 154.29 30,063 130.69 0.9359
2018-02-14 2017-12-31 13F CITIGROUP COM NEW 172967424 175,144 111,476 175.09 13,032 181.41 0.3544
2017-11-14 2017-09-30 13F CITIGROUP COM NEW 172967424 63,668 16,948 36.28 4,631 48.19 0.1882
2017-08-14 2017-06-30 13F CITIGROUP COM NEW 172967424 46,720 -42,561 -47.67 3,125 -41.49 0.1210
2017-05-15 2017-03-31 13F CITIGROUP COM NEW 172967424 89,281 -17,205 -16.16 5,341 -15.60 0.2526
2017-02-14 2016-12-31 13F CITIGROUP COM NEW 172967424 106,486 106,486 0.00 6,328 0.3469
2016-05-03 2016-03-31 13F CITIGROUP COM NEW 172967424 0 -79,920 -100.00 0 -100.00
2016-02-16 2015-12-31 13F CITIGROUP COM NEW 172967424 79,920 79,920 0.00 4,136 0.1716
2015-11-16 2015-09-30 13F CITIGROUP COM NEW 172967424 0 -31,731 -100.00 0 -100.00
2015-08-14 2015-06-30 13F CITIGROUP COM NEW 172967424 31,731 14,109 80.06 1,753 93.06 0.0505
2015-05-15 2015-03-31 13F CITIGROUP COM NEW 172967424 17,622 17,622 0.00 908 0.0488
2015-02-17 2014-12-31 13F CITIGROUP COM NEW 172967424 0 -115,516 -100.00 0 -100.00
2014-12-23 2014-09-30 13F CITIGROUP COM NEW 172967424 115,516 115,516 5,986 0.2247
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
(%)
2023-11-14 2023-09-30 13F CITIGROUP COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-14 2023-06-30 13F CITIGROUP COM NEW Put 55,800 2,569 n/a n/a n/a
2015-02-17 2014-12-31 13F CITIGROUP COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2014-12-23 2014-09-30 13F CITIGROUP COM NEW Put 20,000 1,036 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.