Teradyne, Inc.
MX ˙ BMV ˙ US8807701029
SecurityMX:TER / Teradyne, Inc.
InstitutionWalleye Capital LLC
Latest Disclosed Ownership117,415 shares
Latest Disclosed Value $ 34,808,851
Walleye Capital LLC ownership in TER / Teradyne, Inc.

On May 13, 2026 - Walleye Capital LLC filed a 13F-HR/A form disclosing ownership of 117,415 shares of Teradyne, Inc. (MX:TER) valued at $34,808,851 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 131,074 shares of Teradyne, Inc.. This represents a change in shares of -10.42% during the quarter.

Walleye Capital LLC has a history of taking positions in derivatives of the underlying security (TER) in the form of stock options. The firm currently holds call options representing 18,900 of underlying shares valued at $5,603,094 USD and put options representing 27,500 of underlying shares valued at $8,152,650 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:TER / Teradyne, 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)
2026-05-13 2026-03-31 13F/A-1 TERADYNE COM 880770102 117,415 -13,659 -10.42 34,809 37.20 0.1448
2026-05-08 2026-03-31 13F TERADYNE COM 880770102 117,415 -13,659 34,809 0.1447
2026-02-13 2025-12-31 13F TERADYNE COM 880770102 131,074 128,212 4,479.80 25,371 6,355.47 0.0778
2025-11-14 2025-09-30 13F TERADYNE COM 880770102 2,862 -1,863 -39.43 394 -7.31 0.0015
2025-08-13 2025-06-30 13F TERADYNE COM 880770102 4,725 3,480 279.52 425 315.69 0.0017
2025-05-14 2025-03-31 13F TERADYNE COM 880770102 1,245 -832 -40.06 103 -60.92 0.0005
2025-02-13 2024-12-31 13F TERADYNE COM 880770102 2,077 -180,380 -98.86 262 -98.93 0.0006
2024-11-14 2024-09-30 13F TERADYNE COM 880770102 182,457 148,670 440.02 24,436 387.74 0.0508
2024-08-14 2024-06-30 13F TERADYNE COM 880770102 33,787 -100,828 -74.90 5,010 -67.01 0.0089
2024-05-15 2024-03-31 13F TERADYNE COM 880770102 134,615 51,862 62.67 15,189 69.13 0.0271
2024-02-14 2023-12-31 13F TERADYNE COM 880770102 82,753 82,753 8,980 0.0190
2023-11-21 2023-09-30 13F/A-1 TERADYNE COM 880770102 0 -138,606 -100.00 0 -100.00
2023-11-14 2023-09-30 13F TERADYNE COM 880770102 0 -138,606 0
2023-08-14 2023-06-30 13F TERADYNE COM 880770102 138,606 138,606 15,431 0.0559
2023-02-14 2022-12-31 13F TERADYNE COM 880770102 0 -12,312 -100.00 0 -100.00
2022-11-14 2022-09-30 13F TERADYNE COM 880770102 12,312 -2,151 -14.87 925 -28.57 0.0177
2022-08-19 2022-06-30 13F/A-1 TERADYNE COM 880770102 14,463 14,463 1,295 0.0357
2022-08-08 2022-06-30 13F TERADYNE COM 880770102 14,463 14,463 1,295 0.0357
2022-05-27 2021-12-31 13F/A-01 TERADYNE COM 880770102 0 -10,418 -100.00 0 -100.00
2022-03-03 2021-12-31 13F TERADYNE COM 880770102 0 -10,418 0
2021-11-15 2021-09-30 13F TERADYNE COM 880770102 10,418 -7,597 -42.17 1,137 -52.88 0.0322
2021-08-16 2021-06-30 13F TERADYNE COM 880770102 18,015 8,533 89.99 2,413 109.10 0.0822
2021-05-17 2021-03-31 13F TERADYNE COM 880770102 9,482 9,482 1,154 0.0669
2021-02-16 2020-12-31 13F TERADYNE COM 880770102 0 -31,642 -100.00 0 -100.00
2020-11-16 2020-09-30 13F TERADYNE COM 880770102 31,642 31,642 2,514 0.2802
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
(%)
2026-05-13 2026-03-31 13F/A TERADYNE COM Call 18,900 -55.74 5,603 -32.21 n/a n/a n/a
2026-05-08 2026-03-31 13F TERADYNE COM Call 18,900 5,603 n/a n/a n/a
2026-02-13 2025-12-31 13F TERADYNE COM Call 42,700 556.92 8,265 824.50 n/a n/a n/a
2025-11-14 2025-09-30 13F TERADYNE COM Call 6,500 -60.37 895 -39.35 n/a n/a n/a
2025-08-13 2025-06-30 13F TERADYNE COM Call 16,400 864.71 1,475 952.86 n/a n/a n/a
2025-05-14 2025-03-31 13F TERADYNE COM Call 1,700 -76.71 140 -84.77 n/a n/a n/a
2025-02-13 2024-12-31 13F TERADYNE COM Call 7,300 -13.10 919 -18.31 n/a n/a n/a
2024-11-14 2024-09-30 13F TERADYNE COM Call 8,400 -25.66 1,125 -32.84 n/a n/a n/a
2024-08-14 2024-06-30 13F TERADYNE COM Call 11,300 -11.72 1,676 16.00 n/a n/a n/a
2024-05-15 2024-03-31 13F TERADYNE COM Call 12,800 68.42 1,444 75.24 n/a n/a n/a
2024-02-14 2023-12-31 13F TERADYNE COM Call 7,600 162.07 825 183.16 n/a n/a n/a
2023-11-21 2023-09-30 13F/A TERADYNE COM Call 2,900 70.59 291 53.97 n/a n/a n/a
2023-11-14 2023-09-30 13F TERADYNE COM Call 2,900 291 n/a n/a n/a
2023-08-14 2023-06-30 13F TERADYNE COM Call 1,700 189 n/a n/a n/a
2023-05-15 2023-03-31 13F TERADYNE COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-02-14 2022-12-31 13F TERADYNE COM Call 400 0.00 35 13.33 n/a n/a n/a
2022-11-14 2022-09-30 13F TERADYNE COM Call 400 30 n/a n/a n/a
2020-05-15 2020-03-31 13F TERADYNE COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-14 2019-12-31 13F TERADYNE COM Call 92,500 23.50 6,308 45.45 n/a n/a n/a
2019-11-14 2019-09-30 13F TERADYNE COM Call 74,900 760.92 4,337 940.05 n/a n/a n/a
2019-08-14 2019-06-30 13F TERADYNE COM Call 8,700 -30.95 417 -16.93 n/a n/a n/a
2019-08-14 2019-03-31 13F/A TERADYNE COM Call 12,600 502 n/a n/a n/a
2019-05-15 2019-03-31 13F TERADYNE COM Call 12,600 502 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
(%)
2026-05-13 2026-03-31 13F/A TERADYNE COM Put 27,500 -36.78 8,153 -3.17 n/a n/a n/a
2026-05-08 2026-03-31 13F TERADYNE COM Put 27,500 8,153 n/a n/a n/a
2026-02-13 2025-12-31 13F TERADYNE COM Put 43,500 130.16 8,420 223.68 n/a n/a n/a
2025-11-14 2025-09-30 13F TERADYNE COM Put 18,900 -60.62 2,601 -39.74 n/a n/a n/a
2025-08-13 2025-06-30 13F TERADYNE COM Put 48,000 1,900.00 4,316 2,079.80 n/a n/a n/a
2025-05-14 2025-03-31 13F TERADYNE COM Put 2,400 -60.66 198 -74.22 n/a n/a n/a
2025-02-13 2024-12-31 13F TERADYNE COM Put 6,100 -72.40 768 -74.05 n/a n/a n/a
2024-11-14 2024-09-30 13F TERADYNE COM Put 22,100 74.02 2,960 57.14 n/a n/a n/a
2024-08-14 2024-06-30 13F TERADYNE COM Put 12,700 -71.40 1,883 -62.41 n/a n/a n/a
2024-05-15 2024-03-31 13F TERADYNE COM Put 44,400 63.24 5,010 69.74 n/a n/a n/a
2024-02-14 2023-12-31 13F TERADYNE COM Put 27,200 871.43 2,952 950.18 n/a n/a n/a
2023-11-21 2023-09-30 13F/A TERADYNE COM Put 2,800 -47.17 281 -52.37 n/a n/a n/a
2023-11-14 2023-09-30 13F TERADYNE COM Put 2,800 281 n/a n/a n/a
2023-08-14 2023-06-30 13F TERADYNE COM Put 5,300 590 n/a n/a n/a
2023-05-15 2023-03-31 13F TERADYNE COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-02-14 2022-12-31 13F TERADYNE COM Put 6,400 255.56 559 314.07 n/a n/a n/a
2022-11-14 2022-09-30 13F TERADYNE COM Put 1,800 135 n/a n/a n/a
2020-05-15 2020-03-31 13F TERADYNE COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-14 2019-12-31 13F TERADYNE COM Put 400 -87.10 27 -85.00 n/a n/a n/a
2019-11-14 2019-09-30 13F TERADYNE COM Put 3,100 180 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.