Bullish (BLSH) had the highest return on September 18 by a large-cap US stock, returning 9.4%.

ASSET	DATE	% RETURN
Bullish (BLSH)	9/18/2025	9.39%
Sterling Construction (STRL)	9/18/2025	7.25%
Crowdstrike (CRWD)	9/18/2025	7.19%
Oklo (OKLO)	9/18/2025	6.53%
MP Materials (MP)	9/18/2025	5.96%
Rambus (RMBS)	9/18/2025	5.82%
Coinbase Global (COIN)	9/18/2025	5.31%
Figma (FIG)	9/18/2025	5.28%
Kratos Defense & Security Solutions (KTOS)	9/18/2025	5.22%
Unity Software (U)	9/18/2025	5.21%
Summit Therapeutics (SMMT)	9/18/2025	5.14%
Lattice Semiconductor (LSCC)	9/18/2025	5.09%
D-Wave Quantum (QBTS)	9/18/2025	5.03%
MKS Instruments (MKSI)	9/18/2025	4.77%
Warner Bros Discovery (WBD)	9/18/2025	4.7%
Advanced Micro Devices (AMD)	9/18/2025	4.61%
Amkor Technology (AMKR)	9/18/2025	4.59%
Madrigal Pharmaceuticals (MDGL)	9/18/2025	4.43%
Synopsys (SNPS)	9/18/2025	4.37%
Avidity Biosciences (RNA)	9/18/2025	4.34%
Circle Internet (CRCL)	9/18/2025	4.22%
Snap (SNAP)	9/18/2025	4.2%
Taiwan Semiconductor Manufacturing (TSM)	9/18/2025	4.12%
BridgeBio Pharma (BBIO)	9/18/2025	4.12%
Comfort Systems USA (FIX)	9/18/2025	4.07%

Large-cap stocks are treated as having a market cap of $10B+.