Position
SIMPLEX TRADING, LLC in Newmarket Corp
Back to the book · All holders of NEU
Estimated mark uses implied 13F prices (value ÷ shares). Adds are treated as happening at this quarter’s mark; cuts at last quarter’s. Share jumps can be splits, not buys. This is not realized P&L.
| Quarter | Shares | Value | Implied px | Est. mark | Flow | Weight |
|---|---|---|---|---|---|---|
| Q4 2025 | 1.41K | $967.7K | — | — | — | 0.0% |