Baidu, Inc. - Depositary Receipt (Common Stock)
US ˙ NasdaqGS ˙ US0567521085

SecurityBIDU / Baidu, Inc. - Depositary Receipt (Common Stock)
InstitutionWolverine Trading, Llc
Latest Disclosed Ownership12,314 shares
Latest Disclosed Value $ 1,660,666
Wolverine Trading, Llc ownership in BIDU / Baidu, Inc. - Depositary Receipt (Common Stock)

On November 14, 2025 - Wolverine Trading, Llc filed a 13F-HR form disclosing ownership of 12,314 shares of Baidu, Inc. - Depositary Receipt (Common Stock) (US:BIDU) valued at $1,622,616 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 18, 2025 disclosing 0 shares of Baidu, Inc. - Depositary Receipt (Common Stock). The current value of the position is $1,633,822 USD.

Wolverine Trading, Llc has a history of taking positions in derivatives of the underlying security (BIDU) in the form of stock options. The firm currently holds call options representing 812,800 of underlying shares valued at $109,614,208 USD and put options representing 439,500 of underlying shares valued at $59,270,970 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.

BIDU / Baidu, Inc. - Depositary Receipt (Common Stock) 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)
2025-11-14 2025-09-30 13F BAIDU SPON ADR REP A 056752108 12,314 12,314 1,661 0.0012
2025-08-18 2025-06-30 13F BAIDU SPON ADR REP A 056752108 0 -35,735 -100.00 0 -100.00
2025-05-15 2025-03-31 13F BAIDU SPON ADR REP A 056752108 35,735 -8,727 -19.63 3,337 -10.73 0.0039
2025-02-14 2024-12-31 13F BAIDU SPON ADR REP A 056752108 44,462 44,462 3,737 0.0035
2024-11-14 2024-09-30 13F BAIDU SPON ADR REP A 056752108 0 -18,081 -100.00 0 -100.00
2024-08-14 2024-06-30 13F BAIDU SPON ADR REP A 056752108 18,081 -9,621 -34.73 1,564 -46.40 0.0016
2024-05-15 2024-03-31 13F BAIDU SPON ADR REP A 056752108 27,702 -33,433 -54.69 2,916 -59.95 0.0030
2024-02-14 2023-12-31 13F BAIDU SPON ADR REP A 056752108 61,135 18,175 42.31 7,281 26.15 0.0076
2023-11-15 2023-09-30 13F BAIDU SPON ADR REP A 056752108 42,960 31,349 269.99 5,772 269.46 0.0059
2023-08-23 2023-06-30 13F BAIDU SPON ADR REP A 056752108 11,611 -1,831 -13.62 1,562 78,000.00 0.0019
2023-05-15 2023-03-31 13F BAIDU SPON ADR REP A 056752108 13,442 13,442 2 0.0032
2023-02-14 2022-12-31 13F BAIDU SPON ADR REP A 056752108 0 -13,245 -100.00 0 -100.00
2022-11-14 2022-09-30 13F BAIDU SPON ADR REP A 056752108 13,245 8,758 195.19 1,559 129.60 0.0025
2022-08-15 2022-06-30 13F BAIDU SPON ADR REP A 056752108 4,487 -44,594 -90.86 679 -90.38 0.0011
2022-05-16 2022-03-31 13F BAIDU SPON ADR REP A 056752108 49,081 49,081 7,059 0.0091
2022-02-14 2021-12-31 13F BAIDU SPON ADR REP A 056752108 0 -38,390 -100.00 0 -100.00
2021-11-12 2021-09-30 13F BAIDU SPON ADR REP A 056752108 38,390 38,390 5,832 0.0066
2021-08-06 2021-06-30 13F BAIDU SPON ADR REP A 056752108 0 -112,656 -100.00 0 -100.00
2021-05-14 2021-03-31 13F BAIDU SPON ADR REP A 056752108 112,656 102,250 982.61 24,585 975.93 0.0370
2021-02-12 2020-12-31 13F BAIDU SPON ADR REP A 056752108 10,406 -8,479 -44.90 2,285 -1.30 0.0036
2020-11-13 2020-09-30 13F BAIDU SPON ADR REP A 056752108 18,885 -7,686 -28.93 2,315 -28.17 0.0056
2020-08-13 2020-06-30 13F BAIDU SPON ADR REP A 056752108 26,571 14,279 116.16 3,223 165.05 0.0088
2020-05-11 2020-03-31 13F BAIDU SPON ADR REP A 056752108 12,292 -10,836 -46.85 1,216 -58.37 0.0037
2020-02-12 2019-12-31 13F BAIDU SPON ADR REP A 056752108 23,128 -110,601 -82.71 2,921 -78.42 0.0071
2019-11-14 2019-09-30 13F BAIDU SPON ADR REP A 056752108 133,729 125,526 1,530.25 13,535 1,305.50 0.0390
2019-08-20 2019-06-30 13F BAIDU SPON ADR REP A 056752108 8,203 -93,992 -91.97 963 -94.28 0.0027
2019-05-15 2019-03-31 13F BAIDU SPON ADR REP A 056752108 102,195 91,995 901.91 16,847 918.56 0.0489
2019-02-13 2018-12-31 13F BAIDU SPON ADR REP A 056752108 10,200 -219,332 -95.56 1,654 -96.85 0.0047
2018-11-14 2018-09-30 13F BAIDU SPON ADR REP A 056752108 229,532 115,493 101.28 52,489 106.23 0.1148
2018-08-13 2018-06-30 13F BAIDU SPON ADR REP A 056752108 114,039 0 0.00 25,452 0.00 0.0607
2018-05-15 2018-03-31 13F BAIDU SPON ADR REP A 056752108 114,039 114,039 25,452 0.0607
2018-02-14 2017-12-31 13F BAIDU SPON ADR REP A 056752108 0 -47,579 -100.00 0 -100.00
2017-11-15 2017-09-30 13F BAIDU SPON ADR REP A 056752108 47,579 1,879 4.11 11,785 43.56 0.0450
2017-08-14 2017-06-30 13F BAIDU SPON ADR REP A 056752108 45,700 28,916 172.28 8,209 183.75 0.0377
2017-05-15 2017-03-31 13F BAIDU SPON ADR REP A 056752108 16,784 -33,375 -66.54 2,893 -64.92 0.0159
2017-02-14 2016-12-31 13F BAIDU SPON ADR REP A 056752108 50,159 50,159 8,247 0.1677
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
(%)
2025-11-14 2025-09-30 13F BAIDU SPON ADR REP A Call 812,800 109,614 n/a n/a n/a
2025-08-18 2025-06-30 13F BAIDU SPON ADR REP A Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F BAIDU SPON ADR REP A Call 575,300 6.36 53,716 18.15 n/a n/a n/a
2025-02-14 2024-12-31 13F BAIDU SPON ADR REP A Call 540,900 45,463 n/a n/a n/a
2024-11-14 2024-09-30 13F BAIDU SPON ADR REP A Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F BAIDU SPON ADR REP A Call 510,500 86.86 44,148 53.49 n/a n/a n/a
2024-05-15 2024-03-31 13F BAIDU SPON ADR REP A Call 273,200 -6.18 28,762 -17.06 n/a n/a n/a
2024-02-14 2023-12-31 13F BAIDU SPON ADR REP A Call 291,200 15.14 34,679 2.07 n/a n/a n/a
2023-11-15 2023-09-30 13F BAIDU SPON ADR REP A Call 252,900 -5.70 33,977 -5.85 n/a n/a n/a
2023-08-23 2023-06-30 13F BAIDU SPON ADR REP A Call 268,200 -42.07 36,089 50,728.17 n/a n/a n/a
2023-05-15 2023-03-31 13F BAIDU SPON ADR REP A Call 463,000 71 n/a n/a n/a
2023-02-14 2022-12-31 13F BAIDU SPON ADR REP A Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-11-14 2022-09-30 13F BAIDU SPON ADR REP A Call 204,200 47.54 24,038 14.78 n/a n/a n/a
2022-08-15 2022-06-30 13F BAIDU SPON ADR REP A Call 138,400 -48.68 20,943 -46.01 n/a n/a n/a
2022-05-16 2022-03-31 13F BAIDU SPON ADR REP A Call 269,700 38,791 n/a n/a n/a
2022-02-14 2021-12-31 13F BAIDU SPON ADR REP A Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-12 2021-09-30 13F BAIDU SPON ADR REP A Call 522,900 79,439 n/a n/a n/a
2021-08-06 2021-06-30 13F BAIDU SPON ADR REP A Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-05-14 2021-03-31 13F BAIDU SPON ADR REP A Call 308,900 -1.28 67,411 -1.91 n/a n/a n/a
2021-02-12 2020-12-31 13F BAIDU SPON ADR REP A Call 312,900 76.78 68,722 216.74 n/a n/a n/a
2020-11-13 2020-09-30 13F BAIDU SPON ADR REP A Call 177,000 19.19 21,697 20.46 n/a n/a n/a
2020-08-13 2020-06-30 13F BAIDU SPON ADR REP A Call 148,500 -42.69 18,012 -29.74 n/a n/a n/a
2020-05-11 2020-03-31 13F BAIDU SPON ADR REP A Call 259,100 -18.96 25,638 -36.50 n/a n/a n/a
2020-02-12 2019-12-31 13F BAIDU SPON ADR REP A Call 319,700 -17.56 40,375 2.87 n/a n/a n/a
2019-11-14 2019-09-30 13F BAIDU SPON ADR REP A Call 387,800 10.26 39,249 -4.91 n/a n/a n/a
2019-08-20 2019-06-30 13F BAIDU SPON ADR REP A Call 351,700 44.49 41,276 2.87 n/a n/a n/a
2019-05-15 2019-03-31 13F BAIDU SPON ADR REP A Call 243,400 -31.15 40,124 -30.01 n/a n/a n/a
2019-02-13 2018-12-31 13F BAIDU SPON ADR REP A Call 353,500 -5.46 57,327 -32.95 n/a n/a n/a
2018-11-14 2018-09-30 13F BAIDU SPON ADR REP A Call 373,900 26.23 85,503 29.34 n/a n/a n/a
2018-08-13 2018-06-30 13F BAIDU SPON ADR REP A Call 296,200 0.00 66,109 0.00 n/a n/a n/a
2018-05-15 2018-03-31 13F BAIDU SPON ADR REP A Call 296,200 66,109 n/a n/a n/a
2018-02-14 2017-12-31 13F BAIDU SPON ADR REP A Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-11-15 2017-09-30 13F BAIDU SPON ADR REP A Call 176,500 -15.39 43,717 16.67 n/a n/a n/a
2017-08-14 2017-06-30 13F BAIDU SPON ADR REP A Call 208,600 0.77 37,471 5.02 n/a n/a n/a
2017-05-15 2017-03-31 13F BAIDU SPON ADR REP A Call 207,000 -13.97 35,679 -9.80 n/a n/a n/a
2017-02-14 2016-12-31 13F BAIDU SPON ADR REP A Call 240,600 -8.83 39,557 -17.74 n/a n/a n/a
2016-11-14 2016-09-30 13F BAIDU SPON ADR REP A Call 263,900 48,090 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
(%)
2025-11-14 2025-09-30 13F BAIDU SPON ADR REP A Put 439,500 59,271 n/a n/a n/a
2025-08-18 2025-06-30 13F BAIDU SPON ADR REP A Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F BAIDU SPON ADR REP A Put 290,100 52.52 27,087 69.44 n/a n/a n/a
2025-02-14 2024-12-31 13F BAIDU SPON ADR REP A Put 190,200 15,986 n/a n/a n/a
2024-11-14 2024-09-30 13F BAIDU SPON ADR REP A Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F BAIDU SPON ADR REP A Put 166,100 -9.92 14,364 -26.01 n/a n/a n/a
2024-05-15 2024-03-31 13F BAIDU SPON ADR REP A Put 184,400 5.13 19,414 -7.06 n/a n/a n/a
2024-02-14 2023-12-31 13F BAIDU SPON ADR REP A Put 175,400 13.16 20,888 0.31 n/a n/a n/a
2023-11-15 2023-09-30 13F BAIDU SPON ADR REP A Put 155,000 25.30 20,824 25.11 n/a n/a n/a
2023-08-23 2023-06-30 13F BAIDU SPON ADR REP A Put 123,700 0.81 16,645 92,372.22 n/a n/a n/a
2023-05-15 2023-03-31 13F BAIDU SPON ADR REP A Put 122,700 19 n/a n/a n/a
2023-02-14 2022-12-31 13F BAIDU SPON ADR REP A Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-11-14 2022-09-30 13F BAIDU SPON ADR REP A Put 168,400 20.72 19,824 -6.09 n/a n/a n/a
2022-08-15 2022-06-30 13F BAIDU SPON ADR REP A Put 139,500 -36.27 21,109 -32.95 n/a n/a n/a
2022-05-16 2022-03-31 13F BAIDU SPON ADR REP A Put 218,900 31,484 n/a n/a n/a
2022-02-14 2021-12-31 13F BAIDU SPON ADR REP A Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-12 2021-09-30 13F BAIDU SPON ADR REP A Put 303,000 46,032 n/a n/a n/a
2021-08-06 2021-06-30 13F BAIDU SPON ADR REP A Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-05-14 2021-03-31 13F BAIDU SPON ADR REP A Put 349,300 37.74 76,228 36.86 n/a n/a n/a
2021-02-12 2020-12-31 13F BAIDU SPON ADR REP A Put 253,600 118.06 55,698 290.70 n/a n/a n/a
2020-11-13 2020-09-30 13F BAIDU SPON ADR REP A Put 116,300 -13.79 14,256 -12.87 n/a n/a n/a
2020-08-13 2020-06-30 13F BAIDU SPON ADR REP A Put 134,900 -1.17 16,362 21.14 n/a n/a n/a
2020-05-11 2020-03-31 13F BAIDU SPON ADR REP A Put 136,500 -43.17 13,507 -55.47 n/a n/a n/a
2020-02-12 2019-12-31 13F BAIDU SPON ADR REP A Put 240,200 -37.55 30,335 -22.07 n/a n/a n/a
2019-11-14 2019-09-30 13F BAIDU SPON ADR REP A Put 384,600 35.81 38,925 17.12 n/a n/a n/a
2019-08-20 2019-06-30 13F BAIDU SPON ADR REP A Put 283,200 -32.54 33,236 -51.97 n/a n/a n/a
2019-05-15 2019-03-31 13F BAIDU SPON ADR REP A Put 419,800 -5.17 69,204 -3.61 n/a n/a n/a
2019-02-13 2018-12-31 13F BAIDU SPON ADR REP A Put 442,700 -32.65 71,793 -52.24 n/a n/a n/a
2018-11-14 2018-09-30 13F BAIDU SPON ADR REP A Put 657,300 66.49 150,311 70.59 n/a n/a n/a
2018-08-13 2018-06-30 13F BAIDU SPON ADR REP A Put 394,800 0.00 88,115 0.00 n/a n/a n/a
2018-05-15 2018-03-31 13F BAIDU SPON ADR REP A Put 394,800 88,115 n/a n/a n/a
2018-02-14 2017-12-31 13F BAIDU SPON ADR REP A Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-11-15 2017-09-30 13F BAIDU SPON ADR REP A Put 303,300 9.42 75,124 50.87 n/a n/a n/a
2017-08-14 2017-06-30 13F BAIDU SPON ADR REP A Put 277,200 30.45 49,793 35.95 n/a n/a n/a
2017-05-15 2017-03-31 13F BAIDU SPON ADR REP A Put 212,500 -17.99 36,627 -14.02 n/a n/a n/a
2017-02-14 2016-12-31 13F BAIDU SPON ADR REP A Put 259,100 -18.32 42,599 -26.30 n/a n/a n/a
2016-11-14 2016-09-30 13F BAIDU SPON ADR REP A Put 317,200 57,803 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.