Blue Line Capital, LLC / IL
SEC Form 13F institutional filer · CIK 0002111406
13F-HR · 44 reported holdings · 2026-03-31
Reported long-US-equity value
$0.07B
Top-10 concentration
47.6%
Blue Line Capital, LLC / IL — $71.9M AUM allocation strategy
Blue Line Capital, LLC / IL files SEC Form 13F and reports $71.9M of long US equity value across 44 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 29.0%, followed by Communication Services 12.1% and Industrials 10.3%.
The top 10 holdings account for 48% of reported value — a broadly spread portfolio. 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.
Blue Line Capital, LLC / IL — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$71.9M
total across 44 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
48% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$PLTR +10.5K sh · +$1.37M+$NVDA +8.72K sh · +$1.26M+$FAST +7.32K sh · +$390K
Biggest trims (shares)
−$UBER −12.1K sh · −$1.22M−$IVV −6.53K sh · −$970K−$IVZ −2.78K sh · −$55.4K
Exited to nil (held last quarter, gone now)
$TDG ($868K last qtr)$TMUS ($654K last qtr)$COIN ($605K last qtr)$WDAY ($568K last qtr)$SLB ($488K 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)
- Semiconductors15.9%—
- Interactive Media & Services10.1%—
- Broadline Retail6.3%—
- Technology Hardware, Storage & Peripherals5.3%—
- Systems Software4.5%—
- Electrical Components & Equipment3.5%—
- Application Software3.2%—
- Automobile Manufacturers2.8%—
- Other holdings48.4%—
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 | 30.4K | $5.31M | +8.72K | 7.4% |
| $AMZN | Amazon.com Inc | 21.5K | $4.48M | -1.74K | 6.2% |
| $AAPL | Apple Inc | 15.1K | $3.84M | -190 | 5.3% |
| $MSFT | Microsoft Corporation | 8.71K | $3.22M | +1.46K | 4.5% |
| $META | Meta Platforms Inc | 5.56K | $3.18M | +415 | 4.4% |
| $MU | Micron Technology Inc | 9.22K | $3.11M | -1.01K | 4.3% |
| $AVGO | Broadcom Inc | 9.74K | $3.01M | +262 | 4.2% |
| $VRT | Vertiv Holdings LLC | 10.1K | $2.53M | -518 | 3.5% |
| $PLTR | Palantir Technologies Inc | 15.9K | $2.33M | +10.5K | 3.2% |
…and 35 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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