best mid-cap stocks this week

Xanadu Quantum Technologies Limited Class B Subordinate Voting Shares (XNDU) has had the highest return this week by a mid-cap US stock, returning 244.3%.

ASSETWEEK% RETURN
Xanadu Quantum Technologies Limited Class B Subordinate Voting Shares (XNDU)
4/13/2026 - 4/19/2026
244.26%
D-Wave Quantum (QBTS)
4/13/2026 - 4/19/2026
52.84%
Nextnav Acquisition (NN)
4/13/2026 - 4/19/2026
41.85%
Hims Hers Health (HIMS)
4/13/2026 - 4/19/2026
39.63%
Highest Performances (MAAS)
4/13/2026 - 4/19/2026
39.55%
Fermi (FRMI)
4/13/2026 - 4/19/2026
39.54%
Quantum Computing  (QUBT)
4/13/2026 - 4/19/2026
37.61%
Travere Therapeutics (TVTX)
4/13/2026 - 4/19/2026
37.05%
Sigma Lithium Resources (SGML)
4/13/2026 - 4/19/2026
35.29%
Rigetti Computing (RGTI)
4/13/2026 - 4/19/2026
34.98%
Webull (BULL)
4/13/2026 - 4/19/2026
33.61%
Navitas Semiconductor (NVTS)
4/13/2026 - 4/19/2026
32.16%
Eos Energy Enterprises (EOSE)
4/13/2026 - 4/19/2026
29.74%
Almonty Industries Inc Common Shares (ALM)
4/13/2026 - 4/19/2026
29.67%
AXT (AXTI)
4/13/2026 - 4/19/2026
28.26%
Iridium Communications (IRDM)
4/13/2026 - 4/19/2026
27.86%
Lemonade  (LMND)
4/13/2026 - 4/19/2026
27.55%
Dave (DAVE)
4/13/2026 - 4/19/2026
27.05%
Sezzle (SEZL)
4/13/2026 - 4/19/2026
26.13%
Nuscale Power (SMR)
4/13/2026 - 4/19/2026
26.01%
Infleqtion (INFQ)
4/13/2026 - 4/19/2026
25.97%
Opendoor Technologies (OPEN)
4/13/2026 - 4/19/2026
23.71%
Life360, Inc Common Stock (LIF)
4/13/2026 - 4/19/2026
23.56%
Upstart Holdings  (UPST)
4/13/2026 - 4/19/2026
23.51%
BlackBerry (BB)
4/13/2026 - 4/19/2026
23.1%
Mid-cap stocks are treated as having a market cap between $2B and $10B.