IMC-Chicago, LLC ownership in ROST / Ross Stores, Inc.

IMC-Chicago, LLC has a history of taking positions in derivatives of the underlying security (ROST) in the form of stock options. The firm currently holds call options representing 134,300 of underlying shares valued at $29,093,409 USD and put options representing 140,700 of underlying shares valued at $30,479,841 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.

ROST / Ross Stores, Inc. Historical Put/Call Ratio

Disclosed Call Options

File Date	Effective Date	Form	Security	Class	Opt	Shares	ΔShares (%)	Value (x1000)	ΔValue (%)	Cost Basis (x1000)	Profit (x1000)	Return (%)
2026-05-05	2026-03-31	13F	ROSS STORES	COM	Call	134,300	-17.46	29,093	-0.73	n/a	n/a	n/a
2026-01-29	2025-12-31	13F	ROSS STORES	COM	Call	162,700	22.89	29,309	45.26	n/a	n/a	n/a
2025-11-04	2025-09-30	13F	ROSS STORES	COM	Call	132,400	16.24	20,176	38.85	n/a	n/a	n/a
2025-07-22	2025-06-30	13F	ROSS STORES	COM	Call	113,900	11.67	14,531	11.49	n/a	n/a	n/a
2025-04-14	2025-03-31	13F	ROSS STORES	COM	Call	102,000	-18.73	13,035	-31.34	n/a	n/a	n/a
2025-01-27	2024-12-31	13F	ROSS STORES	COM	Call	125,500	39.14	18,984	39.84	n/a	n/a	n/a
2024-10-25	2024-09-30	13F	ROSS STORES	COM	Call	90,200	-43.20	13,576	-41.17	n/a	n/a	n/a
2024-07-15	2024-06-30	13F	ROSS STORES	COM	Call	158,800	-15.89	23,077	-16.72	n/a	n/a	n/a
2024-04-12	2024-03-31	13F	ROSS STORES	COM	Call	188,800	75.96	27,708	86.60	n/a	n/a	n/a
2024-02-09	2023-12-31	13F	ROSS STORES	COM	Call	107,300	-17.59	14,849	0.97	n/a	n/a	n/a
2023-10-12	2023-09-30	13F	ROSS STORES	COM	Call	130,200	91.47	14,706	92.89	n/a	n/a	n/a
2023-07-14	2023-06-30	13F	ROSS STORES	COM	Call	68,000	18.88	7,625	25.60	n/a	n/a	n/a
2023-04-24	2023-03-31	13F	ROSS STORES	COM	Call	57,200	39.17	6,071	27.25	n/a	n/a	n/a
2023-04-24	2022-12-31	13F/A	ROSS STORES	COM	Call	41,100		4,770		n/a	n/a	n/a
2023-02-09	2022-12-31	13F	ROSS STORES	COM	Call	41,100		5		n/a	n/a	n/a

Disclosed Put Options

File Date	Effective Date	Form	Security	Class	Opt	Shares	ΔShares (%)	Value (x1000)	ΔValue (%)	Cost Basis (x1000)	Profit (x1000)	Return (%)
2026-05-05	2026-03-31	13F	ROSS STORES	COM	Put	140,700	-6.45	30,480	12.50	n/a	n/a	n/a
2026-01-29	2025-12-31	13F	ROSS STORES	COM	Put	150,400	66.19	27,093	96.45	n/a	n/a	n/a
2025-11-04	2025-09-30	13F	ROSS STORES	COM	Put	90,500	-14.22	13,791	2.47	n/a	n/a	n/a
2025-07-22	2025-06-30	13F	ROSS STORES	COM	Put	105,500	77.01	13,460	76.72	n/a	n/a	n/a
2025-04-14	2025-03-31	13F	ROSS STORES	COM	Put	59,600	-56.72	7,616	-63.44	n/a	n/a	n/a
2025-01-27	2024-12-31	13F	ROSS STORES	COM	Put	137,700	-28.54	20,830	-28.18	n/a	n/a	n/a
2024-10-25	2024-09-30	13F	ROSS STORES	COM	Put	192,700	-1.43	29,003	2.09	n/a	n/a	n/a
2024-07-15	2024-06-30	13F	ROSS STORES	COM	Put	195,500	-2.69	28,410	-3.64	n/a	n/a	n/a
2024-04-12	2024-03-31	13F	ROSS STORES	COM	Put	200,900	88.11	29,484	99.49	n/a	n/a	n/a
2024-02-09	2023-12-31	13F	ROSS STORES	COM	Put	106,800	82.25	14,780	123.33	n/a	n/a	n/a
2023-10-12	2023-09-30	13F	ROSS STORES	COM	Put	58,600	62.33	6,619	63.53	n/a	n/a	n/a
2023-07-14	2023-06-30	13F	ROSS STORES	COM	Put	36,100	-50.75	4,048	-47.98	n/a	n/a	n/a
2023-04-24	2023-03-31	13F	ROSS STORES	COM	Put	73,300	88.43	7,779	72.29	n/a	n/a	n/a
2023-04-24	2022-12-31	13F/A	ROSS STORES	COM	Put	38,900		4,515		n/a	n/a	n/a
2023-02-09	2022-12-31	13F	ROSS STORES	COM	Put	38,900		5		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.