MAINSTAY CAPITAL MANAGEMENT LLC /ADV
SEC Form 13F institutional filer · CIK 0001127612
13F-HR · 67 reported holdings · 2026-03-31
Reported long-US-equity value
$0.18B
Top-10 concentration
62.3%
MAINSTAY CAPITAL MANAGEMENT LLC /ADV — $176M AUM allocation strategy
MAINSTAY CAPITAL MANAGEMENT LLC /ADV files SEC Form 13F and reports $176M of long US equity value across 67 reported holdings for 2026-03-31.
Its largest sector bet is Financials 22.8%, followed by Information Technology 11.8% and Industrials 4.5%.
The top 10 holdings account for 62% 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.
MAINSTAY CAPITAL MANAGEMENT LLC /ADV — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$176M
total across 67 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
62% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$AAPL +3.55K sh · +$746K+$SO +1.04K sh · +$484K+$NVDA +837 sh · −$277K
Biggest trims (shares)
−$IVZ −810K sh · −$91.3M−$PG −13.2K sh · −$1.89M−$QQQM −7.23K sh · −$4.19M
Exited to nil (held last quarter, gone now)
$HPQ ($1.22M last qtr)$APP ($339K last qtr)$GE ($217K 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)
- Asset Management & Custody Banks19.4%—
- Semiconductor Materials & Equipment3.7%—
- Semiconductors3.5%—
- Interactive Media & Services3.2%—
- Integrated Oil & Gas3.0%—
- Electric Utilities2.3%—
- Health Care Distributors2.2%—
- Diversified Banks1.9%—
- Other holdings60.7%—
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
8 of 8 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $IVZ | Invesco Ltd | 297K | $34.2M | -810K | 19.4% |
| $LRCX | Lam Research Corporation | 30.6K | $6.54M | +450 | 3.7% |
| $NVDA | NVIDIA Corporation | 35.8K | $6.24M | +837 | 3.5% |
| $GOOGL | Alphabet Inc | 19.7K | $5.64M | +65 | 3.2% |
| $XOM | ExxonMobil Holdings Corporation | 30.9K | $5.24M | -24 | 3.0% |
| $SO | Southern Company | 42.2K | $4.07M | +1.04K | 2.3% |
| $MCK | McKesson Corporation | 4.47K | $3.87M | +62 | 2.2% |
| $JPM | JP Morgan Chase & Co | 11.6K | $3.41M | +80 | 1.9% |
…and 59 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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