Amerisource Bergen Corp.
US ˙ NYSE
DIESES SYMBOL IST NICHT MEHR AKTIV

SecurityABC / Amerisource Bergen Corp.
InstitutionGroup One Trading, L.p.
Group One Trading, L.p. ownership in ABC / Amerisource Bergen Corp.

Group One Trading, L.p. has a history of taking positions in derivatives of the underlying security (ABC) in the form of stock options. The firm currently holds call options representing 42,500 of underlying shares valued at $14,354,375 USD and put options representing 19,600 of underlying shares valued at $6,619,900 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 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.

ABC / Amerisource Bergen Corp. Historical Put/Call Ratio
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
(%)
2026-02-11 2025-12-31 13F CENCORA COM Call 42,500 12.43 14,354 21.51 n/a n/a n/a
2025-11-12 2025-09-30 13F CENCORA COM Call 37,800 -64.37 11,814 -62.87 n/a n/a n/a
2025-08-14 2025-06-30 13F CENCORA COM Call 106,100 5.26 31,814 13.50 n/a n/a n/a
2025-05-14 2025-03-31 13F CENCORA COM Call 100,800 -39.02 28,031 -24.52 n/a n/a n/a
2025-05-14 2024-12-31 13F/A CENCORA COM Call 165,300 -54.10 37,140 -54.18 n/a n/a n/a
2025-02-14 2024-12-31 13F CENCORA COM Call 165,300 37,140 n/a n/a n/a
2024-11-14 2024-09-30 13F CENCORA COM Call 360,100 11.94 81,051 11.83 n/a n/a n/a
2024-08-14 2024-06-30 13F CENCORA COM Call 321,700 68.25 72,479 56.01 n/a n/a n/a
2024-05-10 2024-03-31 13F CENCORA COM Call 191,200 -6.41 46,460 10.72 n/a n/a n/a
2024-02-14 2023-12-31 13F CENCORA COM Call 204,300 31.72 41,959 50.32 n/a n/a n/a
2023-11-09 2023-09-30 13F CENCORA COM Call 155,100 1,214.41 27,913 1,129.65 n/a n/a n/a
2023-08-09 2023-06-30 13F AMERISOURCEBERGEN COM Call 11,800 -30.18 2,271 -16.08 n/a n/a n/a
2023-05-12 2023-03-31 13F AMERISOURCEBERGEN COM Call 16,900 111.25 2,706 104.15 n/a n/a n/a
2023-02-09 2022-12-31 13F AMERISOURCEBERGEN COM Call 8,000 -55.31 1,326 -45.29 n/a n/a n/a
2022-11-09 2022-09-30 13F AMERISOURCEBERGEN COM Call 17,900 -44.58 2,422 -47.00 n/a n/a n/a
2022-08-11 2022-06-30 13F AMERISOURCEBERGEN COM Call 32,300 -45.71 4,570 -50.35 n/a n/a n/a
2022-05-12 2022-03-31 13F AMERISOURCEBERGEN COM Call 59,500 426.55 9,205 512.85 n/a n/a n/a
2022-02-11 2021-12-31 13F AMERISOURCEBERGEN COM Call 11,300 8.65 1,502 20.93 n/a n/a n/a
2021-11-12 2021-09-30 13F AMERISOURCEBERGEN COM Call 10,400 -87.71 1,242 -87.18 n/a n/a n/a
2021-08-10 2021-06-30 13F AMERISOURCEBERGEN COM Call 84,600 342.93 9,686 329.53 n/a n/a n/a
2021-05-12 2021-03-31 13F AMERISOURCEBERGEN COM Call 19,100 26.49 2,255 52.78 n/a n/a n/a
2021-02-10 2020-12-31 13F AMERISOURCEBERGEN COM Call 15,100 -59.41 1,476 -59.06 n/a n/a n/a
2020-11-12 2020-09-30 13F AMERISOURCEBERGEN COM Call 37,200 5.38 3,605 1.35 n/a n/a n/a
2020-08-13 2020-06-30 13F AMERISOURCEBERGEN COM Call 35,300 635.42 3,557 736.94 n/a n/a n/a
2020-05-13 2020-03-31 13F AMERISOURCEBERGEN COM Call 4,800 -61.60 425 -60.02 n/a n/a n/a
2020-02-10 2019-12-31 13F AMERISOURCEBERGEN COM Call 12,500 -11.97 1,063 -9.07 n/a n/a n/a
2019-11-12 2019-09-30 13F AMERISOURCEBERGEN COM Call 14,200 1,169 n/a n/a n/a
2019-08-09 2019-06-30 13F AMERISOURCEBERGEN COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-05-14 2019-03-31 13F/A AMERISOURCEBERGEN COM Call 1,000 -68.75 80 -66.39 n/a n/a n/a
2019-05-13 2019-03-31 13F AMERISOURCEBERGEN COM Call 1,000 80 n/a n/a n/a
2019-02-05 2018-12-31 13F AMERISOURCEBERGEN COM Call 3,200 1,500.00 238 1,222.22 n/a n/a n/a
2018-11-08 2018-09-30 13F AMERISOURCEBERGEN COM Call 200 -33.33 18 -30.77 n/a n/a n/a
2018-08-13 2018-06-30 13F AMERISOURCEBERGEN COM Call 300 -97.79 26 -97.78 n/a n/a n/a
2018-05-16 2018-03-31 13F/A AMERISOURCEBERGEN COM Call 13,600 1,172 n/a n/a n/a
2018-05-10 2018-03-31 13F AMERISOURCEBERGEN COM Call 13,600 1,172 n/a n/a n/a
2017-08-14 2017-06-30 13F AMERISOURCEBERGEN COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-05-10 2017-03-31 13F AMERISOURCEBERGEN COM Call 2,300 15.00 204 30.77 n/a n/a n/a
2017-02-15 2016-12-31 13F AMERISOURCEBERGEN COM Call 2,000 156 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
(%)
2026-02-11 2025-12-31 13F CENCORA COM Put 19,600 35.17 6,620 46.08 n/a n/a n/a
2025-11-12 2025-09-30 13F CENCORA COM Put 14,500 158.93 4,532 169.86 n/a n/a n/a
2025-08-14 2025-06-30 13F CENCORA COM Put 5,600 3.70 1,679 11.86 n/a n/a n/a
2025-05-14 2025-03-31 13F CENCORA COM Put 5,400 -93.76 1,502 -92.28 n/a n/a n/a
2025-05-14 2024-12-31 13F/A CENCORA COM Put 86,500 -12.89 19,435 -13.05 n/a n/a n/a
2025-02-14 2024-12-31 13F CENCORA COM Put 86,500 19,435 n/a n/a n/a
2024-11-14 2024-09-30 13F CENCORA COM Put 99,300 -6.41 22,350 -6.50 n/a n/a n/a
2024-08-14 2024-06-30 13F CENCORA COM Put 106,100 1,277.92 23,904 1,177.61 n/a n/a n/a
2024-05-10 2024-03-31 13F CENCORA COM Put 7,700 450.00 1,871 551.92 n/a n/a n/a
2024-02-14 2023-12-31 13F CENCORA COM Put 1,400 0.00 288 14.34 n/a n/a n/a
2023-11-09 2023-09-30 13F CENCORA COM Put 1,400 7.69 252 0.40 n/a n/a n/a
2023-08-09 2023-06-30 13F AMERISOURCEBERGEN COM Put 1,300 44.44 250 73.61 n/a n/a n/a
2023-05-12 2023-03-31 13F AMERISOURCEBERGEN COM Put 900 -89.41 144 -89.77 n/a n/a n/a
2023-02-09 2022-12-31 13F AMERISOURCEBERGEN COM Put 8,500 -80.41 1,409 -76.03 n/a n/a n/a
2022-11-09 2022-09-30 13F AMERISOURCEBERGEN COM Put 43,400 -1.81 5,873 -6.08 n/a n/a n/a
2022-08-11 2022-06-30 13F AMERISOURCEBERGEN COM Put 44,200 1,325.81 6,253 1,202.71 n/a n/a n/a
2022-05-12 2022-03-31 13F AMERISOURCEBERGEN COM Put 3,100 -93.17 480 -92.04 n/a n/a n/a
2022-02-11 2021-12-31 13F AMERISOURCEBERGEN COM Put 45,400 2.71 6,033 14.26 n/a n/a n/a
2021-11-12 2021-09-30 13F AMERISOURCEBERGEN COM Put 44,200 240.00 5,280 254.84 n/a n/a n/a
2021-08-10 2021-06-30 13F AMERISOURCEBERGEN COM Put 13,000 17.12 1,488 13.50 n/a n/a n/a
2021-05-12 2021-03-31 13F AMERISOURCEBERGEN COM Put 11,100 -88.73 1,311 -86.38 n/a n/a n/a
2021-02-10 2020-12-31 13F AMERISOURCEBERGEN COM Put 98,500 9.69 9,629 10.64 n/a n/a n/a
2020-11-12 2020-09-30 13F AMERISOURCEBERGEN COM Put 89,800 -86.54 8,703 -87.06 n/a n/a n/a
2020-08-13 2020-06-30 13F AMERISOURCEBERGEN COM Put 667,400 643.21 67,254 746.28 n/a n/a n/a
2020-05-13 2020-03-31 13F AMERISOURCEBERGEN COM Put 89,800 18.94 7,947 23.80 n/a n/a n/a
2020-02-10 2019-12-31 13F AMERISOURCEBERGEN COM Put 75,500 1,380.39 6,419 1,428.33 n/a n/a n/a
2019-11-12 2019-09-30 13F AMERISOURCEBERGEN COM Put 5,100 -1.92 420 -5.19 n/a n/a n/a
2019-08-09 2019-06-30 13F AMERISOURCEBERGEN COM Put 5,200 108.00 443 122.61 n/a n/a n/a
2019-05-14 2019-03-31 13F/A AMERISOURCEBERGEN COM Put 2,500 733.33 199 804.55 n/a n/a n/a
2019-05-13 2019-03-31 13F AMERISOURCEBERGEN COM Put 2,500 199 n/a n/a n/a
2019-02-05 2018-12-31 13F AMERISOURCEBERGEN COM Put 300 22 n/a n/a n/a
2018-11-08 2018-09-30 13F AMERISOURCEBERGEN COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-13 2018-06-30 13F AMERISOURCEBERGEN COM Put 30,000 2,558 n/a n/a n/a
2017-05-10 2017-03-31 13F AMERISOURCEBERGEN COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-15 2016-12-31 13F AMERISOURCEBERGEN COM Put 300 23 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.