SMST
name pending profile ingest
Momentum inputs (comparable managers):
holder breadth -28.6% ·
share flow +27.9% ·
net new positions -20.0%
· formula
Concentrated accumulation: rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Optiver Holding B.V. | 21.86K | +104.6% | $1.43M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 2 | Hrt Financial Lp | 8.53K | New | $559,000 | 0.0% | New | 1 | SEC ↗ |
| 3 | Susquehanna International Group, Llp | 8.23K | +16.2% | $539,723 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | Jane Street Group, Llc | 5.80K | +104.8% | $380,232 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 5 | Group One Trading Llc | 143 | New | $9,378 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Hrt Financial Lp | $559,000 | 0.0% |
| Group One Trading Llc | $9,378 | 0.0% |
Exited
| Bank of New York Mellon Corp | $649,600 | was 0.0% |
| Simplex Trading, Llc | $402,844 | was 0.0% |
| Belvedere Trading LLC | $247,312 | was 0.0% |
| UBS Group AG | $21,251 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 7 holders, 50.08K shares, $2.37M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.