Shay Capital LLC
SEC Form 13F institutional filer · CIK 0001723643
13F-HR · 74 reported holdings · 2026-03-31
Reported long-US-equity value
$0.19B
Top-10 concentration
65.0%
Shay Capital LLC — $188M AUM allocation strategy
Shay Capital LLC files SEC Form 13F and reports $188M of long US equity value across 74 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 36.4%, followed by Consumer Discretionary 11.2% and Health Care 8.5%.
The top 10 holdings account for 65% of reported value — a conviction-weighted book concentrated in its best ideas. The sector and industry splits below are of the same reported value. Track quarter-over-quarter adds, trims, new positions and exits below — sourced from SEC 13F filings, public domain.
Shay Capital LLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$188M
total across 74 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
65% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$NVDA +231K sh · +$39.8M+$TMO +31.9K sh · +$15.7M+$AIZ +27.2K sh · +$5.12M
Biggest trims (shares)
−$MRVL −47.1K sh · −$3.72M−$MSFT −45.5K sh · −$23.2M−$SPGI −45.1K sh · −$2.62M
Exited to nil (held last quarter, gone now)
$CMCSA ($9.1M last qtr)$LULU ($2.05M last qtr)$MRSH ($1.86M last qtr)$COHR ($1.85M last qtr)$COF ($1.82M last qtr)
Sector allocation (share of reported value)
each slice is a share of the reported long-US-equity value — smaller sectors and the rest of the book roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Industry allocation (share of reported value)
- Semiconductors31.8%—
- Life Sciences Tools & Services8.5%—
- Multi-line Insurance7.2%—
- Automotive Parts & Equipment6.1%—
- Broadline Retail3.7%—
- Interactive Media & Services3.0%—
- Technology Hardware, Storage & Peripherals2.7%—
- Broadcasting2.6%—
- Other holdings34.5%—
the finer GICS cut of the same book — same denominator — smaller industries roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Top S&P 500 holdings
9 of 9 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $NVDA | NVIDIA Corporation | 270K | $47.1M | +231K | 25.0% |
| $TMO | Thermo Fisher Scientific Inc | 32.4K | $15.9M | +31.9K | 8.5% |
| $AIZ | Assurant Inc | 62K | $13.5M | +27.2K | 7.2% |
| $APTV | Aptiv PLC | 163K | $11.3M | — | 6.0% |
| $MU | Micron Technology Inc | 22K | $7.42M | +20.5K | 3.9% |
| $AMZN | Amazon.com Inc | 33.5K | $6.97M | -17K | 3.7% |
| $WBD | Warner Bros. Discovery Inc. Series A | 176K | $4.84M | — | 2.6% |
| $BA | Boeing Company | 24K | $4.78M | -8.1K | 2.5% |
| $MSFT | Microsoft Corporation | 10K | $3.7M | -45.5K | 2.0% |
…and 65 more holdings in the full 13F filing (top positions only shown).
SEC Form 13F data sets · public domain · 45-day filing lag · >$100M AUM managers · as reported
← All 13F filers·← QuantOrb.pro
How to read Δ QoQ — the five insight categories, and the caveats
The categories. Analysts, quants and retail traders look past total portfolio value to isolate actionable signals. Five categories matter.
Conviction & concentration shifts
New positions vs complete exits — a brand-new stock signals high conviction; a full liquidation suggests a broken thesis or tax-loss harvesting. Aggressive sizing — look at share count, not dollars: a 20% share increase during a drawdown is strong dip-buying. Concentration — a narrowing top-5/10 means conviction; spreading capital across more names means hedging.
Sector & macro allocation rotations
Aggregating Δ QoQ moves across sectors shows where smart money is leaning in or sneaking out — rotating out of growth into defensives or energy, for example. The fund's total long equity exposure quarter-over-quarter is a proxy for overall institutional risk appetite.
Crowding & smart-money consensus
When several managers initiate or expand the same stock in the same quarter, that is institutional consensus. Contrarian reads: top pickers buying hard into a beaten-down name the market is selling.
Derivative & option overlays
Reported call/put changes indicate whether managers are adding downside hedges or leveraging upside exposure. Note: a long increase may be half of a market-neutral pair trade.
Who reads this
| Retail "cloners" | High-conviction ideas to replicate ~45 days after quarter-end. |
| Corporate IR | Which funds bought or dumped the stock, before the next call. |
| Quant / algo traders | Cross-sectional factor inputs: flow, momentum, ownership. |
Four caveats before you trade on it
- 45-day lag — holdings are quarter-end; positions may already be closed.
- Long-only — 13Fs miss shorts, pair trades and cash.
- No non-US / fixed income — the picture is US equities plus options.
- Corporate actions — splits and spinoffs distort raw share deltas.
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