Wayfair Inc.
MX ˙ BMV ˙ US94419L1017
SecurityMX:W / Wayfair Inc.
InstitutionAtreides Management, LP
Latest Disclosed Ownership1,430,997 shares
Latest Disclosed Value $ 107,625,284
Atreides Management, LP ownership in W / Wayfair Inc.

On May 18, 2026 - Atreides Management, LP filed a 13F-HR form disclosing ownership of 1,430,997 shares of Wayfair Inc. (MX:W) valued at $107,625,284 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 870,864 shares of Wayfair Inc.. This represents a change in shares of 64.32% during the quarter.

Atreides Management, LP 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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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)
2026-05-18 2026-03-31 13F WAYFAIR CL A 94419L101 1,430,997 560,133 64.32 107,625 23.08 2.1516
2026-02-17 2025-12-31 13F WAYFAIR CL A 94419L101 870,864 16,474 1.93 87,443 14.57 1.0685
2025-11-14 2025-09-30 13F WAYFAIR CL A 94419L101 854,390 127,214 17.49 76,323 105.24 1.4864
2025-08-14 2025-06-30 13F WAYFAIR CL A 94419L101 727,176 78,106 12.03 37,188 78.88 1.0319
2025-05-15 2025-03-31 13F WAYFAIR CL A 94419L101 649,070 -224,536 -25.70 20,790 -46.31 0.6311
2025-02-14 2024-12-31 13F WAYFAIR CL A 94419L101 873,606 -516,931 -37.17 38,718 -50.44 0.8478
2024-11-14 2024-09-30 13F WAYFAIR CL A 94419L101 1,390,537 -156,849 -10.14 78,120 -4.26 1.9890
2024-08-14 2024-06-30 13F WAYFAIR CL A 94419L101 1,547,386 649,037 72.25 81,594 33.81 2.6646
2024-05-15 2024-03-31 13F WAYFAIR CL A 94419L101 898,349 430,756 92.12 60,980 111.37 1.3842
2024-02-14 2023-12-31 13F WAYFAIR CL A 94419L101 467,593 -503,613 -51.85 28,850 -50.96 0.9476
2023-11-14 2023-09-30 13F WAYFAIR CL A 94419L101 971,206 16,932 1.77 58,826 -5.18 1.9228
2023-08-14 2023-06-30 13F WAYFAIR CL A 94419L101 954,274 566,308 145.97 62,037 365.67 1.5937
2023-05-15 2023-03-31 13F WAYFAIR CL A 94419L101 387,966 102,743 36.02 13,323 42.03 0.4080
2023-02-14 2022-12-31 13F WAYFAIR CL A 94419L101 285,223 14,065 5.19 9,381 6.28 0.3699
2022-11-14 2022-09-30 13F WAYFAIR CL A 94419L101 271,158 120,846 80.40 8,826 34.79 0.2321
2022-08-15 2022-06-30 13F WAYFAIR CL A 94419L101 150,312 -167,365 -52.68 6,548 -81.39 0.2433
2022-05-16 2022-03-31 13F WAYFAIR CL A 94419L101 317,677 4,709 1.50 35,192 -40.81 1.0842
2022-02-14 2021-12-31 13F WAYFAIR CL A 94419L101 312,968 10,695 3.54 59,455 -23.02 1.8578
2021-11-15 2021-09-30 13F WAYFAIR CL A 94419L101 302,273 6,009 2.03 77,234 -17.43 1.8238
2021-08-16 2021-06-30 13F WAYFAIR CL A 94419L101 296,264 23,050 8.44 93,534 8.77 1.6708
2021-06-01 2021-03-31 13F/A-1 WAYFAIR CL A 94419L101 273,214 273,214 85,994 1.9399
2021-05-17 2021-03-31 13F WAYFAIR CL A 94419L101 273,214 273,214 85,994 1.9305
2020-05-15 2020-03-31 13F WAYFAIR CL A 94419L101 0 -184,619 -100.00 0 -100.00
2020-02-14 2019-12-31 13F WAYFAIR CL A 94419L101 184,619 184,619 16,684 3.8275
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
(%)
2023-08-14 2023-06-30 13F WAYFAIR CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-15 2023-03-31 13F WAYFAIR CL A Call 600,000 20,604 n/a n/a n/a
2021-08-16 2021-06-30 13F WAYFAIR CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-06-01 2021-03-31 13F/A WAYFAIR CL A Call 130,000 40,918 n/a n/a n/a
2021-05-17 2021-03-31 13F WAYFAIR CL A Call 130,000 40,918 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.