Teradyne, Inc.
MX ˙ BMV ˙ US8807701029
SecurityMX:TER / Teradyne, Inc.
InstitutionToronto Dominion Bank
Latest Disclosed Ownership72,410 shares
Latest Disclosed Value $ 21,466,690
Toronto Dominion Bank ownership in TER / Teradyne, Inc.

On May 15, 2026 - Toronto Dominion Bank filed a 13F-HR form disclosing ownership of 72,410 shares of Teradyne, Inc. (MX:TER) valued at $21,466,690 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 112,791 shares of Teradyne, Inc.. This represents a change in shares of -35.80% during the quarter.

Toronto Dominion Bank 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 30,000 of underlying shares valued at $8,893,800 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)
2026-05-15 2026-03-31 13F TERADYNE COM 880770102 72,410 -40,381 -35.80 21,467 -1.67 0.0308
2026-02-17 2025-12-31 13F TERADYNE COM 880770102 112,791 51,314 83.47 21,832 158.02 0.0322
2025-11-14 2025-09-30 13F Teradyne COM 880770102 61,477 -162,799 -72.59 8,462 -58.04 0.0131
2025-08-14 2025-06-30 13F TERADYNE COM 880770102 224,276 142,671 174.83 20,167 199.20 0.0334
2025-05-15 2025-03-31 13F TERADYNE COM 880770102 81,605 -5,577 -6.40 6,741 -38.60 0.0132
2025-02-19 2024-12-31 13F/A-1 TERADYNE COM 880770102 87,182 1,018 1.18 10,978 -4.87 0.0173
2025-02-14 2024-12-31 13F TERADYNE COM 880770102 87,182 1,018 10,978 0.0053
2024-11-18 2024-09-30 13F/A-1 Teradyne COM 880770102 86,164 33,714 64.28 11,540 48.37 0.0204
2024-11-14 2024-09-30 13F Teradyne COM 880770102 86,164 33,714 11,540 0.0008
2024-08-14 2024-06-30 13F Teradyne COM 880770102 52,450 -489 -0.92 7,778 30.20 0.0125
2024-05-14 2024-03-31 13F Teradyne COM 880770102 52,939 -4,614 -8.02 5,973 -4.36 0.0094
2024-02-13 2023-12-31 13F Teradyne COM 880770102 57,553 -15,578 -21.30 6,246 -14.99 0.0091
2024-02-14 2023-09-30 13F/A-1 Teradyne COM 880770102 73,131 -14,301 -16.36 7,347 81,522.22 0.0122
2023-11-14 2023-09-30 13F Teradyne COM 880770102 73,131 -14,301 7,347 0.0005
2024-02-14 2023-06-30 13F/A-1 Teradyne COM 880770102 87,432 5,193 6.31 10 12.50 0.0144
2023-08-10 2023-06-30 13F Teradyne COM 880770102 87,432 5,193 10 0.0145
2023-05-11 2023-03-31 13F Teradyne COM 880770102 82,239 2,908 3.67 9 33.33 0.0144
2023-02-07 2022-12-31 13F Teradyne COM 880770102 79,331 -8,937 -10.12 7 -99.91 0.0104
2022-11-09 2022-09-30 13F Teradyne COM 880770102 88,268 -75,975 -46.26 6,631 -54.91 0.0118
2022-08-11 2022-06-30 13F Teradyne COM 880770102 164,243 60,083 57.68 14,705 19.41 0.0274
2022-05-09 2022-03-31 13F Teradyne COM 880770102 104,160 -156,677 -60.07 12,315 -71.13 0.0186
2022-02-04 2021-12-31 13F Teradyne COM 880770102 260,837 144,483 124.18 42,654 235.81 0.0570
2021-11-08 2021-09-30 13F Teradyne COM 880770102 116,354 31 0.03 12,702 -18.49 0.0199
2021-08-13 2021-06-30 13F/A-1 Teradyne COM 880770102 116,323 17,173 17.32 15,583 29.16 0.0241
2021-08-10 2021-06-30 13F Teradyne COM 880770102 116,323 17,173 15,583 0.0051
2021-05-11 2021-03-31 13F Teradyne COM 880770102 99,150 -350 -0.35 12,065 1.14 0.0212
2021-02-08 2020-12-31 13F Teradyne COM 880770102 99,500 16,760 20.26 11,929 81.46 0.0219
2020-10-30 2020-09-30 13F Teradyne COM 880770102 82,740 57,232 224.37 6,574 204.92 0.0162
2020-08-28 2020-06-30 13F/A-1 Teradyne COM 880770102 25,508 2,901 12.83 2,156 76.00 0.0055
2020-08-10 2020-06-30 13F Teradyne COM 880770102 25 -22,582 2,156 5,467.0345
2020-05-13 2020-03-31 13F Teradyne COM 880770102 22,607 -7,148 -24.02 1,225 -39.63 0.0037
2020-02-13 2019-12-31 13F Teradyne COM 880770102 29,755 29,755 2,029 0.0034
2019-05-06 2019-03-31 13F Teradyne COM 880770102 0 -6 -100.00 0 0.0000
2019-02-07 2018-12-31 13F Teradyne COM 880770102 6 -90 -93.75 0 -100.00
2018-11-07 2018-09-30 13F Teradyne COM 880770102 96 -15 -13.51 4 0.00 0.0000
2018-08-06 2018-06-30 13F Teradyne COM 880770102 111 -11,519 -99.05 4 -99.25 0.0000
2018-05-10 2018-03-31 13F TERADYNE COM 880770102 11,630 -325 -2.72 531 5.99 0.0012
2018-02-08 2017-12-31 13F TERADYNE COM 880770102 11,955 -15,580 -56.58 501 -51.31 0.0015
2017-11-06 2017-09-30 13F TERADYNE COM 880770102 27,535 -9,570 -25.79 1,029 -7.80 0.0033
2017-08-18 2017-06-30 13F TERADYNE COM 880770102 37,105 -19,185 -34.08 1,116 -36.45 0.0036
2017-05-05 2017-03-31 13F TERADYNE COM 880770102 56,290 -29,170 -34.13 1,756 -19.19 0.0047
2017-02-06 2016-12-31 13F TERADYNE COM 880770102 85,460 -493 -0.57 2,173 16.95 0.0064
2016-11-03 2016-09-30 13F TERADYNE COM 880770102 85,953 1,320 1.56 1,858 10.93 0.0062
2016-08-15 2016-06-30 13F TERADYNE COM 880770102 84,633 -2,775 -3.17 1,675 -10.90 0.0070
2016-05-04 2016-03-31 13F TERADYNE COM 880770102 87,408 12,160 16.16 1,880 20.44 0.0116
2016-02-09 2015-12-31 13F TERADYNE COM 880770102 75,248 -950 -1.25 1,561 13.20 0.0095
2015-11-10 2015-09-30 13F TERADYNE COM 880770102 76,198 -2 -0.00 1,379 -6.13 0.0079
2015-08-11 2015-06-30 13F TERADYNE COM 880770102 76,200 200 0.26 1,469 2.58 0.0069
2015-05-15 2015-03-31 13F TERADYNE COM 880770102 76,000 1,500 2.01 1,432 -2.72 0.0062
2015-02-10 2014-12-31 13F TERADYNE COM 880770102 74,500 18,560 33.18 1,472 47.20 0.0058
2014-11-07 2014-09-30 13F TERADYNE COM 880770102 55,940 52,746 1,651.41 1,000 1,685.71 0.0035
2014-02-11 2013-12-31 13F TERADYNE COM 880770102 3,194 0 0.00 56 5.66 0.0002
2013-11-13 2013-09-30 13F TERADYNE COM 880770102 3,194 2,900 986.39 53 960.00 0.0002
2013-08-14 2013-06-30 13F TERADYNE COM 880770102 294 0 0.00 5 0.00 0.0000
2013-06-14 2013-03-31 13F TERADYNE COM 880770102 294 294 5 0.0000
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
(%)
2026-05-15 2026-03-31 13F TERADYNE COM Call 30,000 8,894 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.