Wayfair Inc.
MX ˙ BMV ˙ US94419L1017
SecurityMX:W / Wayfair Inc.
InstitutionBloombergSen Inc.
Latest Disclosed Ownership79,785 shares
Latest Disclosed Value $ 6,000,630
BloombergSen Inc. ownership in W / Wayfair Inc.

On May 8, 2026 - BloombergSen Inc. filed a 13F-HR form disclosing ownership of 79,785 shares of Wayfair Inc. (MX:W) valued at $6,000,630 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 61,186 shares of Wayfair Inc.. This represents a change in shares of 30.40% during the quarter.

BloombergSen Inc. has a history of taking positions in derivatives of the underlying security (W) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 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:W / Wayfair 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)
2026-05-08 2026-03-31 13F WAYFAIR CL A 94419L101 79,785 18,599 30.40 6,001 -2.33 0.4395
2026-02-06 2025-12-31 13F WAYFAIR CL A 94419L101 61,186 3,361 5.81 6,144 18.94 0.4483
2025-10-29 2025-09-30 13F WAYFAIR CL A 94419L101 57,825 13,513 30.50 5,166 127.93 0.3201
2025-07-18 2025-06-30 13F WAYFAIR CL A 94419L101 44,312 8,704 24.44 2,266 98.77 0.1390
2025-05-06 2025-03-31 13F WAYFAIR CL A 94419L101 35,608 2,739 8.33 1,141 -21.70 0.0707
2025-02-12 2024-12-31 13F WAYFAIR CL A 94419L101 32,869 7,252 28.31 1,457 1.18 0.0887
2024-10-31 2024-09-30 13F WAYFAIR CL A 94419L101 25,617 9,025 54.39 1,439 64.65 0.0828
2024-07-29 2024-06-30 13F WAYFAIR CL A 94419L101 16,592 1,841 12.48 875 -12.69 0.0550
2024-05-14 2024-03-31 13F WAYFAIR CL A 94419L101 14,751 2,773 23.15 1,001 35.45 0.0581
2024-02-13 2023-12-31 13F WAYFAIR CL A 94419L101 11,978 3,003 33.46 739 36.10 0.0465
2023-11-13 2023-09-30 13F WAYFAIR CL A 94419L101 8,975 772 9.41 544 1.88 0.0371
2023-08-14 2023-06-30 13F WAYFAIR CL A 94419L101 8,203 2,076 33.88 533 153.81 0.0366
2023-05-15 2023-03-31 13F WAYFAIR CL A 94419L101 6,127 1,856 43.46 210 50.00 0.0144
2023-02-14 2022-12-31 13F WAYFAIR CL A 94419L101 4,271 0 0.00 140 0.72 0.0093
2022-11-10 2022-09-30 13F WAYFAIR CL A 94419L101 4,271 121 2.92 139 -23.20 0.0096
2022-08-11 2022-06-30 13F WAYFAIR CL A 94419L101 4,150 -245,783 -98.34 181 -99.35 0.0112
2022-05-16 2022-03-31 13F WAYFAIR CL A 94419L101 249,933 1,024 0.41 27,690 -41.44 1.4811
2022-02-11 2021-12-31 13F WAYFAIR CL A 94419L101 248,909 -685 -0.27 47,285 -25.85 2.2384
2021-11-16 2021-09-30 13F/A-1 WAYFAIR CL A 94419L101 249,594 3,344 1.36 63,769 -18.04 3.2688
2021-11-12 2021-09-30 13F WAYFAIR CL A 94419L101 249,594 3,344 63,769 3.2688
2021-08-11 2021-06-30 13F WAYFAIR CL A 94419L101 246,250 173,000 236.18 77,803 237.47 4.0908
2021-05-14 2021-03-31 13F WAYFAIR CL A 94419L101 73,250 73,250 23,055 1.2587
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
(%)
2023-02-14 2022-12-31 13F WAYFAIR CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-11-10 2022-09-30 13F WAYFAIR CL A Call 234,000 0.00 7,617 -25.27 n/a n/a n/a
2022-08-11 2022-06-30 13F WAYFAIR CL A Call 234,000 10,193 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.